From: wdc <wdc@rock-chips.com>
Date: Fri, 24 Oct 2014 03:11:18 +0000 (+0800)
Subject: rk3368: new pinctrl, io-domain driver supported
X-Git-Tag: firefly_0821_release~4158^2~587
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5a18dc261d197de5e41718a751dfada39c47624b;p=firefly-linux-kernel-4.4.55.git
rk3368: new pinctrl, io-domain driver supported
---
diff --git a/arch/arm64/boot/dts/rk3368.dtsi b/arch/arm64/boot/dts/rk3368.dtsi
new file mode 100644
index 000000000000..522f7996da31
--- /dev/null
+++ b/arch/arm64/boot/dts/rk3368.dtsi
@@ -0,0 +1,935 @@
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/pinctrl/rockchip-rk3288.h>
+
+#include "skeleton.dtsi"
+
+/ {
+ compatible = "rockchip,rk3368";
+
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ xin24m: xin24m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ clock-output-names = "xin24m";
+ };
+
+ aliases {
+ serial0 = &uart_bt;
+ serial1 = &uart_bb;
+ serial2 = &uart_dbg;
+ serial3 = &uart_gps;
+ serial4 = &uart_exp;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ i2c5 = &i2c5;
+ spi0 = &spi0;
+ spi1 = &spi1;
+ spi2 = &spi2;
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53","arm,armv8";
+ reg = <0x0 0x0>;
+ };
+ };
+
+ chosen {
+ bootargs = "console=ttyS2 earlyprintk=uart8250-32bit,0xff690000";
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
+ clock-frequency = <24000000>;
+ };
+
+ memory@00000000 {
+ device_type = "memory";
+ reg = <0x0 0x00000000 0x0 0x20000000>;
+ };
+
+ gic: interrupt-controller@ffb70000 {
+ compatible = "arm,cortex-a15-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0x0 0xffb71000 0 0x1000>,
+ <0x0 0xffb72000 0 0x1000>;
+ };
+
+ pmu_grf: syscon@ff738000 {
+ compatible = "rockchip,rk3388-pmu-grf", "syscon";
+ reg = <0x0 0xff738000 0x0 0x100>;
+ };
+
+ sgrf: syscon@ff740000 {
+ compatible = "rockchip,rk3388-sgrf", "syscon";
+ reg = <0x0 0xff740000 0x0 0x1000>;
+
+ };
+
+ grf: syscon@ff770000 {
+ compatible = "rockchip,rk3388-grf", "syscon";
+ reg = <0x0 0xff770000 0x0 0x1000>;
+ };
+
+ i2c0: i2c@ff650000 {
+ compatible = "rockchip,rk30-i2c";
+ reg = <0x0 0xff650000 0x0 0x1000>;
+ interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c0_xfer>;
+ pinctrl-1 = <&i2c0_gpio>;
+ gpios = <&gpio0 GPIO_A6 GPIO_ACTIVE_LOW>, <&gpio0 GPIO_A7 GPIO_ACTIVE_LOW>;
+ //clocks = <&clk_gates10 2>;
+ rockchip,check-idle = <1>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@ff140000 {
+ compatible = "rockchip,rk30-i2c";
+ reg = <0x0 0xff140000 0x0 0x1000>;
+ interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c1_xfer>;
+ pinctrl-1 = <&i2c1_gpio>;
+ gpios = <&gpio2 GPIO_C5 GPIO_ACTIVE_LOW>, <&gpio2 GPIO_C6 GPIO_ACTIVE_LOW>;
+ //clocks = <&clk_gates10 3>;
+ rockchip,check-idle = <1>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@ff660000 {
+ compatible = "rockchip,rk30-i2c";
+ reg = <0x0 0xff660000 0x0 0x1000>;
+ interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c2_xfer>;
+ pinctrl-1 = <&i2c2_gpio>;
+ gpios = <&gpio3 GPIO_D7 GPIO_ACTIVE_LOW>, <&gpio0 GPIO_B1 GPIO_ACTIVE_LOW>;
+ //clocks = <&clk_gates6 13>;
+ rockchip,check-idle = <1>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@ff150000 {
+ compatible = "rockchip,rk30-i2c";
+ reg = <0x0 0xff150000 0x0 0x1000>;
+ interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c3_xfer>;
+ pinctrl-1 = <&i2c3_gpio>;
+ gpios = <&gpio1 GPIO_C1 GPIO_ACTIVE_LOW>, <&gpio1 GPIO_C0 GPIO_ACTIVE_LOW>;
+ //clocks = <&clk_gates6 14>;
+ rockchip,check-idle = <1>;
+ status = "disabled";
+ };
+
+ i2c4: i2c@ff160000 {
+ compatible = "rockchip,rk30-i2c";
+ reg = <0x0 0xff160000 0x0 0x1000>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c4_xfer>;
+ pinctrl-1 = <&i2c4_gpio>;
+ gpios = <&gpio3 GPIO_D0 GPIO_ACTIVE_LOW>, <&gpio3 GPIO_D1 GPIO_ACTIVE_LOW>;
+ //clocks = <&clk_gates6 15>;
+ rockchip,check-idle = <1>;
+ status = "disabled";
+ };
+
+ i2c5: i2c@ff170000 {
+ compatible = "rockchip,rk30-i2c";
+ reg = <0x0 0xff170000 0x0 0x1000>;
+ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default", "gpio";
+ pinctrl-0 = <&i2c5_xfer>;
+ pinctrl-1 = <&i2c5_gpio>;
+ gpios = <&gpio3 GPIO_D2 GPIO_ACTIVE_LOW>, <&gpio3 GPIO_D3 GPIO_ACTIVE_LOW>;
+ //clocks = <&clk_gates7 0>;
+ rockchip,check-idle = <1>;
+ status = "disabled";
+ };
+
+ uart_bt: serial@ff180000 {
+ compatible = "rockchip,serial";
+ reg = <0x0 0xff180000 0x0 0x100>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <24000000>;
+ clocks = <&xin24m>, <&xin24m>;
+ clock-names = "sclk_uart", "pclk_uart";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ //dmas = <&pdma1 1>, <&pdma1 2>;
+ //#dma-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
+ status = "disabled";
+ };
+
+ uart_bb: serial@ff190000 {
+ compatible = "rockchip,serial";
+ reg = <0x0 0xff190000 0x0 0x100>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <24000000>;
+ clocks = <&xin24m>, <&xin24m>;
+ clock-names = "sclk_uart", "pclk_uart";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ //dmas = <&pdma1 3>, <&pdma1 4>;
+ //#dma-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_xfer &uart1_cts &uart1_rts>;
+ status = "disabled";
+ };
+
+ uart_dbg: serial@ff690000 {
+ compatible = "rockchip,serial";
+ reg = <0x0 0xff690000 0x0 0x100>;
+ interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <24000000>;
+ clocks = <&xin24m>, <&xin24m>;
+ clock-names = "sclk_uart", "pclk_uart";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ //dmas = <&pdma0 4>, <&pdma0 5>;
+ //#dma-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_xfer>;
+ //status = "disabled";
+ };
+
+ uart_gps: serial@ff1b0000 {
+ compatible = "rockchip,serial";
+ reg = <0x0 0xff1b0000 0x0 0x100>;
+ interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <24000000>;
+ clocks = <&xin24m>, <&xin24m>;
+ clock-names = "sclk_uart", "pclk_uart";
+ current-speed = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ //dmas = <&pdma1 7>, <&pdma1 8>;
+ //#dma-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_xfer &uart3_cts &uart3_rts>;
+ status = "disabled";
+ };
+
+ uart_exp: serial@ff1c0000 {
+ compatible = "rockchip,serial";
+ reg = <0x0 0xff1c0000 0x0 0x100>;
+ interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <24000000>;
+ clocks = <&xin24m>, <&xin24m>;
+ clock-names = "sclk_uart", "pclk_uart";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ //dmas = <&pdma1 9>, <&pdma1 10>;
+ //#dma-cells = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_xfer &uart4_cts &uart4_rts>;
+ status = "disabled";
+ };
+
+ spi0: spi@ff110000 {
+ compatible = "rockchip,rockchip-spi";
+ reg = <0x0 0xff110000 0x0 0x1000>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_clk &spi0_tx &spi0_rx &spi0_cs0 &spi0_cs1>;
+ rockchip,spi-src-clk = <0>;
+ num-cs = <2>;
+ //clocks =<&clk_spi0>, <&clk_gates6 4>;
+ //clock-names = "spi","pclk_spi0";
+ //dmas = <&pdma1 11>, <&pdma1 12>;
+ //#dma-cells = <2>;
+ //dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+ spi1: spi@ff120000 {
+ compatible = "rockchip,rockchip-spi";
+ reg = <0x0 0xff120000 0x0 0x1000>;
+ interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi1_clk &spi1_tx &spi1_rx &spi1_cs0>;
+ rockchip,spi-src-clk = <1>;
+ num-cs = <1>;
+ //clocks = <&clk_spi1>, <&clk_gates6 5>;
+ //clock-names = "spi","pclk_spi1";
+ //dmas = <&pdma1 13>, <&pdma1 14>;
+ //#dma-cells = <2>;
+ //dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+ spi2: spi@ff130000 {
+ compatible = "rockchip,rockchip-spi";
+ reg = <0x0 0xff130000 0x0 0x1000>;
+ interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_clk &spi2_tx &spi2_rx &spi2_cs0>;
+ rockchip,spi-src-clk = <2>;
+ num-cs = <2>;
+ //clocks = <&clk_spi2>, <&clk_gates6 6>;
+ //clock-names = "spi","pclk_spi2";
+ //dmas = <&pdma1 15>, <&pdma1 16>;
+ //#dma-cells = <2>;
+ //dma-names = "tx", "rx";
+ status = "disabled";
+ };
+
+
+ pinctrl: pinctrl {
+ compatible = "rockchip,rk3368-pinctrl";
+ rockchip,grf = <&grf>;
+ rockchip,pmu = <&pmu_grf>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ gpio0: gpio0@ff750000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x0 0xff750000 0x0 0x100>;
+ interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+ //clocks = <&clk_gates17 4>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio1: gpio1@ff780000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x0 0xff780000 0x0 0x100>;
+ interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+ //clocks = <&clk_gates14 1>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio2: gpio2@ff790000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x0 0xff790000 0x0 0x100>;
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ //clocks = <&clk_gates14 2>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio3: gpio3@ff7a0000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x0 0xff7a0000 0x0 0x100>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ //clocks = <&clk_gates14 3>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pcfg_pull_up: pcfg-pull-up {
+ bias-pull-up;
+ };
+
+ pcfg_pull_down: pcfg-pull-down {
+ bias-pull-down;
+ };
+
+ pcfg_pull_none: pcfg-pull-none {
+ bias-disable;
+ };
+
+ pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
+ drive-strength = <8>;
+ };
+
+ pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
+ bias-pull-up;
+ drive-strength = <8>;
+ };
+
+ pcfg_pull_none_drv_4ma: pcfg-pull-none-drv-4ma {
+ drive-strength = <4>;
+ };
+
+ pcfg_pull_up_drv_4ma: pcfg-pull-up-drv-4ma {
+ bias-pull-up;
+ drive-strength = <4>;
+ };
+
+ pcfg_output_high: pcfg-output-high {
+ output-high;
+ };
+
+ pcfg_output_low: pcfg-output-low {
+ output-low;
+ };
+
+ i2c0 {
+ i2c0_xfer: i2c0-xfer {
+ rockchip,pins = <0 GPIO_A6 RK_FUNC_1 &pcfg_pull_none>,
+ <0 GPIO_A7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ i2c0_gpio: i2c0-gpio {
+ rockchip,pins = <0 GPIO_A6 RK_FUNC_GPIO &pcfg_pull_none>,
+ <0 GPIO_A7 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c1 {
+ i2c1_xfer: i2c1-xfer {
+ rockchip,pins = <2 GPIO_C5 RK_FUNC_1 &pcfg_pull_none>,
+ <2 GPIO_C6 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ i2c1_gpio: i2c1-gpio {
+ rockchip,pins = <2 GPIO_C5 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_C6 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c2 {
+ i2c2_xfer: i2c2-xfer {
+ rockchip,pins = <3 GPIO_D7 RK_FUNC_2 &pcfg_pull_none>,
+ <0 GPIO_B1 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ i2c2_gpio: i2c2-gpio {
+ rockchip,pins = <3 GPIO_D7 RK_FUNC_GPIO &pcfg_pull_none>,
+ <0 GPIO_B1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c3 {
+ i2c3_xfer: i2c3-xfer {
+ rockchip,pins = <1 GPIO_C0 RK_FUNC_1 &pcfg_pull_none>,
+ <1 GPIO_C1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ i2c3_gpio: i2c3-gpio {
+ rockchip,pins = <1 GPIO_C0 RK_FUNC_GPIO &pcfg_pull_none>,
+ <1 GPIO_C1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c4 {
+ i2c4_xfer: i2c4-xfer {
+ rockchip,pins = <3 GPIO_D0 RK_FUNC_2 &pcfg_pull_none>,
+ <3 GPIO_D1 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ i2c4_gpio: i2c4-gpio {
+ rockchip,pins = <3 GPIO_D0 RK_FUNC_GPIO &pcfg_pull_none>,
+ <3 GPIO_D1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ i2c5 {
+ i2c5_xfer: i2c5-xfer {
+ rockchip,pins = <3 GPIO_D2 RK_FUNC_2 &pcfg_pull_none>,
+ <3 GPIO_D3 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ i2c5_gpio: i2c5-gpio {
+ rockchip,pins = <3 GPIO_D2 RK_FUNC_GPIO &pcfg_pull_none>,
+ <3 GPIO_D3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ uart0 {
+ uart0_xfer: uart0-xfer {
+ rockchip,pins = <2 GPIO_D0 RK_FUNC_1 &pcfg_pull_up>,
+ <2 GPIO_D1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_cts: uart0-cts {
+ rockchip,pins = <2 GPIO_D2 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_rts: uart0-rts {
+ rockchip,pins = <2 GPIO_D3 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_rts_gpio: uart0-rts-gpio {
+ rockchip,pins = <2 GPIO_D3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ uart1 {
+ uart1_xfer: uart1-xfer {
+ rockchip,pins = <0 GPIO_C4 RK_FUNC_3 &pcfg_pull_up>,
+ <0 GPIO_C5 RK_FUNC_3 &pcfg_pull_none>;
+ };
+
+ uart1_cts: uart1-cts {
+ rockchip,pins = <0 GPIO_C6 RK_FUNC_3 &pcfg_pull_none>;
+ };
+
+ uart1_rts: uart1-rts {
+ rockchip,pins = <0 GPIO_C7 RK_FUNC_3 &pcfg_pull_none>;
+ };
+ };
+
+ uart2 {
+ uart2_xfer: uart2-xfer {
+ rockchip,pins = <2 GPIO_A6 RK_FUNC_2 &pcfg_pull_up>,
+ <2 GPIO_A5 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ uart3 {
+ uart3_xfer: uart3-xfer {
+ rockchip,pins = <3 GPIO_D5 RK_FUNC_2 &pcfg_pull_up>,
+ <3 GPIO_D6 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ uart3_cts: uart3-cts {
+ rockchip,pins = <3 GPIO_C0 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ uart3_rts: uart3-rts {
+ rockchip,pins = <3 GPIO_C1 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ uart4 {
+ uart4_xfer: uart4-xfer {
+ rockchip,pins = <0 GPIO_D3 RK_FUNC_3 &pcfg_pull_up>,
+ <0 GPIO_D2 RK_FUNC_3 &pcfg_pull_none>;
+ };
+
+ uart4_cts: uart4-cts {
+ rockchip,pins = <0 GPIO_D0 RK_FUNC_3 &pcfg_pull_none>;
+ };
+
+ uart4_rts: uart4-rts {
+ rockchip,pins = <0 GPIO_D1 RK_FUNC_3 &pcfg_pull_none>;
+ };
+ };
+
+ spi0 {
+ spi0_clk: spi0-clk {
+ rockchip,pins = <1 GPIO_D5 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_cs0: spi0-cs0 {
+ rockchip,pins = <1 GPIO_D0 RK_FUNC_3 &pcfg_pull_up>;
+ };
+ spi0_tx: spi0-tx {
+ rockchip,pins = <1 GPIO_C7 RK_FUNC_3 &pcfg_pull_up>;
+ };
+ spi0_rx: spi0-rx {
+ rockchip,pins = <1 GPIO_C6 RK_FUNC_3 &pcfg_pull_up>;
+ };
+ spi0_cs1: spi0-cs1 {
+ rockchip,pins = <1 GPIO_D1 RK_FUNC_3 &pcfg_pull_up>;
+ };
+ };
+
+ spi1 {
+ spi1_clk: spi1-clk {
+ rockchip,pins = <1 GPIO_B6 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_cs0: spi1-cs0 {
+ rockchip,pins = <1 GPIO_B7 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_rx: spi1-rx {
+ rockchip,pins = <1 GPIO_C0 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi1_tx: spi1-tx {
+ rockchip,pins = <1 GPIO_C1 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ };
+
+ spi2 {
+ spi2_clk: spi2-clk {
+ rockchip,pins = <0 GPIO_B4 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi2_cs0: spi2-cs0 {
+ rockchip,pins = <0 GPIO_B5 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi2_rx: spi2-rx {
+ rockchip,pins = <0 GPIO_B2 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi2_tx: spi2-tx {
+ rockchip,pins = <0 GPIO_B3 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ };
+
+ i2s {
+ i2s_mclk: i2s-mclk {
+ rockchip,pins = <2 GPIO_C4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_sclk:i2s-sclk {
+ rockchip,pins = <2 GPIO_B4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_lrckrx:i2s-lrckrx {
+ rockchip,pins = <2 GPIO_B5 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_lrcktx:i2s-lrcktx {
+ rockchip,pins = <2 GPIO_B6 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_sdi:i2s-sdi {
+ rockchip,pins = <2 GPIO_B7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_sdo0:i2s-sdo0 {
+ rockchip,pins = <2 GPIO_C0 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_sdo1:i2s-sdo1 {
+ rockchip,pins = <2 GPIO_C1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_sdo2:i2s-sdo2 {
+ rockchip,pins = <2 GPIO_C2 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_sdo3:i2s-sdo3 {
+ rockchip,pins = <2 GPIO_C3 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ i2s_gpio: i2s-gpio {
+ rockchip,pins = <2 GPIO_C4 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_B4 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_B5 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_B6 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_B7 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_C0 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_C1 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_C2 RK_FUNC_GPIO &pcfg_pull_none>,
+ <2 GPIO_C3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ spdif {
+ spdif_tx: spdif-tx {
+ rockchip,pins = <2 GPIO_C7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ sdmmc {
+ sdmmc_clk: sdmmc-clk {
+ rockchip,pins = <2 GPIO_B1 RK_FUNC_1 &pcfg_pull_none_drv_4ma>;
+ };
+
+ sdmmc_cmd: sdmmc-cmd {
+ rockchip,pins = <2 GPIO_B2 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_dectn: sdmmc-dectn {
+ rockchip,pins = <2 GPIO_B3 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_bus1: sdmmc-bus1 {
+ rockchip,pins = <2 GPIO_A5 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_bus4: sdmmc-bus4 {
+ rockchip,pins = <2 GPIO_A5 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <2 GPIO_A6 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <2 GPIO_A7 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <2 GPIO_B0 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdmmc_gpio: sdmmc-gpio {
+ rockchip,pins = <2 GPIO_B1 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//CLK
+ <2 GPIO_B2 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//CMD
+ <2 GPIO_B3 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//DET
+ <2 GPIO_A5 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//DO
+ <2 GPIO_A6 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//D1
+ <2 GPIO_A7 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//D2
+ <2 GPIO_B0 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>;//D3
+ };
+ };
+
+ sdio0 {
+ sdio0_bus1: sdio0-bus1 {
+ rockchip,pins = <2 GPIO_D4 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdio0_bus4: sdio0-bus4 {
+ rockchip,pins = <2 GPIO_D4 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <2 GPIO_D5 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <2 GPIO_D6 RK_FUNC_1 &pcfg_pull_up_drv_4ma>,
+ <2 GPIO_D7 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdio0_cmd: sdio0-cmd {
+ rockchip,pins = <3 GPIO_A0 RK_FUNC_1 &pcfg_pull_up_drv_4ma>;
+ };
+
+ sdio0_clk: sdio0-clk {
+ rockchip,pins = <3 GPIO_A1 RK_FUNC_1 &pcfg_pull_none_drv_4ma>;
+ };
+
+ sdio0_dectn: sdio0-dectn {
+ rockchip,pins = <3 GPIO_A2 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_wrprt: sdio0-wrprt {
+ rockchip,pins = <3 GPIO_A3 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_pwren: sdio0-pwren {
+ rockchip,pins = <3 GPIO_A4 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_bkpwr: sdio0-bkpwr {
+ rockchip,pins = <3 GPIO_A5 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_int: sdio0-int {
+ rockchip,pins = <3 GPIO_A6 RK_FUNC_1 &pcfg_pull_up>;
+ };
+
+ sdio0_gpio: sdio0-gpio {
+ rockchip,pins = <3 GPIO_A0 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//CMD
+ <3 GPIO_A1 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//CLK
+ <3 GPIO_A2 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//DET
+ <3 GPIO_A3 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//wrprt
+ <3 GPIO_A4 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//PWREN
+ <3 GPIO_A5 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//BKPWR
+ <3 GPIO_A6 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//INTN
+ <2 GPIO_D4 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//DO
+ <2 GPIO_D5 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//D1
+ <2 GPIO_D6 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>,//D2
+ <2 GPIO_D7 RK_FUNC_GPIO &pcfg_pull_up_drv_4ma>;//D3
+ };
+ };
+
+ emmc {
+ emmc_clk: emmc-clk {
+ rockchip,pins = <2 GPIO_A4 RK_FUNC_2 &pcfg_pull_none_drv_8ma>;
+ };
+
+ emmc_cmd: emmc-cmd {
+ rockchip,pins = <1 GPIO_D2 RK_FUNC_2 &pcfg_pull_up_drv_8ma>;
+ };
+
+ emmc_pwren: emmc-pwren {
+ rockchip,pins = <1 GPIO_D3 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ emmc_rstnout: emmc_rstnout {
+ rockchip,pins = <2 GPIO_A3 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ emmc_bus1: emmc-bus1 {
+ rockchip,pins = <1 GPIO_C2 RK_FUNC_2 &pcfg_pull_up_drv_8ma>;//DO
+ };
+
+ emmc_bus4: emmc-bus4 {
+ rockchip,pins = <1 GPIO_C2 RK_FUNC_2 &pcfg_pull_up_drv_8ma>,//DO
+ <1 GPIO_C3 RK_FUNC_2 &pcfg_pull_up_drv_8ma>,//D1
+ <1 GPIO_C4 RK_FUNC_2 &pcfg_pull_up_drv_8ma>,//D2
+ <1 GPIO_C5 RK_FUNC_2 &pcfg_pull_up_drv_8ma>;//D3
+ };
+ };
+
+ pwm0 {
+ pwm0_pin: pwm0-pin {
+ rockchip,pins = <3 GPIO_B0 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ vop_pwm_pin:vop-pwm {
+ rockchip,pins = <3 GPIO_B0 RK_FUNC_3 &pcfg_pull_none>;
+ };
+ };
+
+ pwm1 {
+ pwm1_pin: pwm1-pin {
+ rockchip,pins = <0 GPIO_B0 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ pwm3 {
+ pwm3_pin: pwm3-pin {
+ rockchip,pins = <3 GPIO_D6 RK_FUNC_3 &pcfg_pull_none>;
+ };
+ };
+
+ lcdc {
+ lcdc_lcdc: lcdc-lcdc {
+ rockchip,pins = <0 GPIO_D7 RK_FUNC_1 &pcfg_pull_none>,//DCLK
+ <0 GPIO_D6 RK_FUNC_1 &pcfg_pull_none>,//DEN
+ <0 GPIO_D4 RK_FUNC_1 &pcfg_pull_none>,//HSYNC
+ <0 GPIO_D5 RK_FUNC_1 &pcfg_pull_none>;//VSYN
+ };
+
+ lcdc_gpio: lcdc-gpio {
+ rockchip,pins = <0 GPIO_D7 RK_FUNC_GPIO &pcfg_pull_none>,//DCLK
+ <0 GPIO_D6 RK_FUNC_GPIO &pcfg_pull_none>,//DEN
+ <0 GPIO_D4 RK_FUNC_GPIO &pcfg_pull_none>,//HSYNC
+ <0 GPIO_D5 RK_FUNC_GPIO &pcfg_pull_none>;//VSYN
+ };
+ };
+
+ isp {
+ cif_clkout: cif-clkout {
+ rockchip,pins = <1 GPIO_B3 RK_FUNC_1 &pcfg_pull_none>;//cif_clkout
+ };
+
+ isp_dvp_d2d9: isp-dvp-d2d9 {
+ rockchip,pins = <1 GPIO_A0 RK_FUNC_1 &pcfg_pull_none>,//cif_data2
+ <1 GPIO_A1 RK_FUNC_1 &pcfg_pull_none>,//cif_data3
+ <1 GPIO_A2 RK_FUNC_1 &pcfg_pull_none>,//cif_data4
+ <1 GPIO_A3 RK_FUNC_1 &pcfg_pull_none>,//cif_data5
+ <1 GPIO_A4 RK_FUNC_1 &pcfg_pull_none>,//cif_data6
+ <1 GPIO_A5 RK_FUNC_1 &pcfg_pull_none>,//cif_data7
+ <1 GPIO_A6 RK_FUNC_1 &pcfg_pull_none>,//cif_data8
+ <1 GPIO_A7 RK_FUNC_1 &pcfg_pull_none>,//cif_data9
+ <1 GPIO_B0 RK_FUNC_1 &pcfg_pull_none>,//cif_sync
+ <1 GPIO_B1 RK_FUNC_1 &pcfg_pull_none>,//cif_href
+ <1 GPIO_B2 RK_FUNC_1 &pcfg_pull_none>,//cif_clkin
+ <1 GPIO_B3 RK_FUNC_1 &pcfg_pull_none>;//cif_clkout
+ };
+
+ isp_dvp_d0d1: isp-dvp-d0d1 {
+ rockchip,pins = <1 GPIO_B4 RK_FUNC_1 &pcfg_pull_none>,//cif_data0
+ <1 GPIO_B5 RK_FUNC_1 &pcfg_pull_none>;//cif_data1
+ };
+
+ isp_dvp_d10d11:isp_d10d11 {
+ rockchip,pins = <1 GPIO_B6 RK_FUNC_1 &pcfg_pull_none>,//cif_data10
+ <1 GPIO_B7 RK_FUNC_1 &pcfg_pull_none>;//cif_data11
+ };
+
+ isp_dvp_d0d7: isp-dvp-d0d7 {
+ rockchip,pins = <1 GPIO_B4 RK_FUNC_1 &pcfg_pull_none>,//cif_data0
+ <1 GPIO_B5 RK_FUNC_1 &pcfg_pull_none>,//cif_data1
+ <1 GPIO_A0 RK_FUNC_1 &pcfg_pull_none>,//cif_data2
+ <1 GPIO_A1 RK_FUNC_1 &pcfg_pull_none>,//cif_data3
+ <1 GPIO_A2 RK_FUNC_1 &pcfg_pull_none>,//cif_data4
+ <1 GPIO_A3 RK_FUNC_1 &pcfg_pull_none>,//cif_data5
+ <1 GPIO_A4 RK_FUNC_1 &pcfg_pull_none>,//cif_data6
+ <1 GPIO_A5 RK_FUNC_1 &pcfg_pull_none>;//cif_data7
+ };
+
+ isp_shutter: isp-shutter {
+ rockchip,pins = <3 GPIO_C3 RK_FUNC_2 &pcfg_pull_none>, //SHUTTEREN
+ <3 GPIO_C6 RK_FUNC_2 &pcfg_pull_none>;//SHUTTERTRIG
+ };
+
+ isp_flash_trigger: isp-flash-trigger {
+ rockchip,pins = <3 GPIO_C4 RK_FUNC_2 &pcfg_pull_none>; //ISP_FLASHTRIGOU
+ };
+
+ isp_prelight: isp-prelight {
+ rockchip,pins = <3 GPIO_C5 RK_FUNC_2 &pcfg_pull_none>;//ISP_PRELIGHTTRIG
+ };
+
+ isp_flash_trigger_as_gpio: isp_flash_trigger_as_gpio {
+ rockchip,pins = <3 GPIO_C4 RK_FUNC_GPIO &pcfg_pull_none>;//ISP_FLASHTRIGOU
+ };
+ };
+
+ gps {
+ gps_mag: gps-mag {
+ rockchip,pins = <3 GPIO_B6 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ gps_sig: gps-sig {
+ rockchip,pins = <3 GPIO_B7 RK_FUNC_2 &pcfg_pull_none>;
+
+ };
+
+ gps_rfclk: gps-rfclk {
+ rockchip,pins = <3 GPIO_C0 RK_FUNC_3 &pcfg_pull_none>;
+ };
+ };
+
+ gmac {
+ mac_clk: mac-clk {
+ rockchip,pins = <3 GPIO_C6 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ mac_txpins: mac-txpins {
+ rockchip,pins = <3 GPIO_B0 RK_FUNC_1 &pcfg_pull_none>,//TXD0
+ <3 GPIO_B1 RK_FUNC_1 &pcfg_pull_none>,//TXD1
+ <3 GPIO_B2 RK_FUNC_1 &pcfg_pull_none>,//TXD2
+ <3 GPIO_B6 RK_FUNC_1 &pcfg_pull_none>,//TXD3
+ <3 GPIO_B5 RK_FUNC_1 &pcfg_pull_none>,//TXEN
+ <3 GPIO_D4 RK_FUNC_1 &pcfg_pull_none>;//TXCLK
+ };
+
+ mac_rxpins: mac-rxpins {
+ rockchip,pins = <3 GPIO_B7 RK_FUNC_1 &pcfg_pull_none>,//RXD0
+ <3 GPIO_C0 RK_FUNC_1 &pcfg_pull_none>,//RXD1
+ <3 GPIO_C1 RK_FUNC_1 &pcfg_pull_none>,//RXD2
+ <3 GPIO_C2 RK_FUNC_1 &pcfg_pull_none>,//RXD3
+ <3 GPIO_C4 RK_FUNC_1 &pcfg_pull_none>,//RXDV
+ <3 GPIO_C5 RK_FUNC_1 &pcfg_pull_none>,//RXER
+ <3 GPIO_D1 RK_FUNC_1 &pcfg_pull_none>,//RXCLK
+ <3 GPIO_B4 RK_FUNC_1 &pcfg_pull_none>;//COL
+ };
+
+ mac_crs: mac-crs {
+ rockchip,pins = <3 GPIO_B3 RK_FUNC_1 &pcfg_pull_none>; //CRS
+ };
+
+ mac_mdpins: mac-mdpins {
+ rockchip,pins = <3 GPIO_D0 RK_FUNC_1 &pcfg_pull_none>,//MDIO
+ <3 GPIO_C3 RK_FUNC_1 &pcfg_pull_none>;//MDC
+ };
+ };
+
+ tsadc_pin {
+ tsadc_int: tsadc-int {
+ rockchip,pins = <0 GPIO_A3 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ tsadc_gpio: tsadc-gpio {
+ rockchip,pins = <0 GPIO_A3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+ };
+};
diff --git a/drivers/pinctrl/pinctrl-rk3368.c b/drivers/pinctrl/pinctrl-rk3368.c
new file mode 100755
index 000000000000..fe68f6e0a08b
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-rk3368.c
@@ -0,0 +1,2329 @@
+/*
+ * Pinctrl driver for Rockchip SoCs
+ *
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * With some ideas taken from pinctrl-samsung:
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Copyright (c) 2012 Linaro Ltd
+ * http://www.linaro.org
+ *
+ * and pinctrl-at91:
+ * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/gpio.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/clk.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+#include <linux/syscore_ops.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+
+#include "core.h"
+#include "pinconf.h"
+
+
+#if 0
+#define pinctrl_dbg(dev, format, arg...) \
+ dev_printk(KERN_INFO , dev , format , ## arg)
+#else
+#define pinctrl_dbg(dev, format, arg...)
+#endif
+
+
+/* GPIO control registers */
+#define GPIO_SWPORT_DR 0x00
+#define GPIO_SWPORT_DDR 0x04
+#define GPIO_INTEN 0x30
+#define GPIO_INTMASK 0x34
+#define GPIO_INTTYPE_LEVEL 0x38
+#define GPIO_INT_POLARITY 0x3c
+#define GPIO_INT_STATUS 0x40
+#define GPIO_INT_RAWSTATUS 0x44
+#define GPIO_DEBOUNCE 0x48
+#define GPIO_PORTS_EOI 0x4c
+#define GPIO_EXT_PORT 0x50
+#define GPIO_LS_SYNC 0x60
+
+enum rockchip_pinctrl_type {
+ RK2928,
+ RK3066B,
+ RK3188,
+ RK3288,
+ RK3368,
+};
+
+/**
+ * Encode variants of iomux registers into a type variable
+ */
+#define IOMUX_GPIO_ONLY BIT(0)
+#define IOMUX_WIDTH_4BIT BIT(1)
+#define IOMUX_SOURCE_PMU BIT(2)
+#define IOMUX_UNROUTED BIT(3)
+
+/**
+ * @type: iomux variant using IOMUX_* constants
+ * @offset: if initialized to -1 it will be autocalculated, by specifying
+ * an initial offset value the relevant source offset can be reset
+ * to a new value for autocalculating the following iomux registers.
+ */
+struct rockchip_iomux {
+ int type;
+ int offset;
+};
+
+/**
+ * @reg_base: register base of the gpio bank
+ * @reg_pull: optional separate register for additional pull settings
+ * @clk: clock of the gpio bank
+ * @irq: interrupt of the gpio bank
+ * @pin_base: first pin number
+ * @nr_pins: number of pins in this bank
+ * @name: name of the bank
+ * @bank_num: number of the bank, to account for holes
+ * @iomux: array describing the 4 iomux sources of the bank
+ * @valid: are all necessary informations present
+ * @of_node: dt node of this bank
+ * @drvdata: common pinctrl basedata
+ * @domain: irqdomain of the gpio bank
+ * @gpio_chip: gpiolib chip
+ * @grange: gpio range
+ * @slock: spinlock for the gpio bank
+ */
+struct rockchip_pin_bank {
+ void __iomem *reg_base;
+ struct regmap *regmap_pull;
+ struct clk *clk;
+ int irq;
+ u32 pin_base;
+ u8 nr_pins;
+ char *name;
+ u8 bank_num;
+ struct rockchip_iomux iomux[4];
+ bool valid;
+ struct device_node *of_node;
+ struct rockchip_pinctrl *drvdata;
+ struct irq_domain *domain;
+ struct gpio_chip gpio_chip;
+ struct pinctrl_gpio_range grange;
+ spinlock_t slock;
+ u32 toggle_edge_mode;
+ u32 suspend_wakeup;
+ u32 saved_wakeup;
+};
+
+#define PIN_BANK(id, pins, label) \
+ { \
+ .bank_num = id, \
+ .nr_pins = pins, \
+ .name = label, \
+ .iomux = { \
+ { .offset = -1 }, \
+ { .offset = -1 }, \
+ { .offset = -1 }, \
+ { .offset = -1 }, \
+ }, \
+ }
+
+#define PIN_BANK_IOMUX_FLAGS(id, pins, label, iom0, iom1, iom2, iom3) \
+ { \
+ .bank_num = id, \
+ .nr_pins = pins, \
+ .name = label, \
+ .iomux = { \
+ { .type = iom0, .offset = -1 }, \
+ { .type = iom1, .offset = -1 }, \
+ { .type = iom2, .offset = -1 }, \
+ { .type = iom3, .offset = -1 }, \
+ }, \
+ }
+
+/**
+ */
+struct rockchip_pin_ctrl {
+ struct rockchip_pin_bank *pin_banks;
+ u32 nr_banks;
+ u32 nr_pins;
+ char *label;
+ enum rockchip_pinctrl_type type;
+ int grf_mux_offset;
+ int pmu_mux_offset;
+ void (*pull_calc_reg)(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit);
+};
+
+struct rockchip_pin_config {
+ unsigned int func;
+ unsigned long *configs;
+ unsigned int nconfigs;
+};
+
+/**
+ * struct rockchip_pin_group: represent group of pins of a pinmux function.
+ * @name: name of the pin group, used to lookup the group.
+ * @pins: the pins included in this group.
+ * @npins: number of pins included in this group.
+ * @func: the mux function number to be programmed when selected.
+ * @configs: the config values to be set for each pin
+ * @nconfigs: number of configs for each pin
+ */
+struct rockchip_pin_group {
+ const char *name;
+ unsigned int npins;
+ unsigned int *pins;
+ struct rockchip_pin_config *data;
+};
+
+/**
+ * struct rockchip_pmx_func: represent a pin function.
+ * @name: name of the pin function, used to lookup the function.
+ * @groups: one or more names of pin groups that provide this function.
+ * @num_groups: number of groups included in @groups.
+ */
+struct rockchip_pmx_func {
+ const char *name;
+ const char **groups;
+ u8 ngroups;
+};
+
+struct rockchip_pinctrl {
+ struct regmap *regmap_base;
+ int reg_size;
+ struct regmap *regmap_pull;
+ struct regmap *regmap_pmu;
+ struct device *dev;
+ struct rockchip_pin_ctrl *ctrl;
+ struct pinctrl_desc pctl;
+ struct pinctrl_dev *pctl_dev;
+ struct rockchip_pin_group *groups;
+ unsigned int ngroups;
+ struct rockchip_pmx_func *functions;
+ unsigned int nfunctions;
+};
+
+static struct regmap_config rockchip_regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+};
+static struct rockchip_pinctrl *g_info;
+
+static inline struct rockchip_pin_bank *gc_to_pin_bank(struct gpio_chip *gc)
+{
+ return container_of(gc, struct rockchip_pin_bank, gpio_chip);
+}
+
+static const inline struct rockchip_pin_group *pinctrl_name_to_group(
+ const struct rockchip_pinctrl *info,
+ const char *name)
+{
+ int i;
+
+ for (i = 0; i < info->ngroups; i++) {
+ if (!strcmp(info->groups[i].name, name))
+ return &info->groups[i];
+ }
+
+ return NULL;
+}
+
+/*
+ * given a pin number that is local to a pin controller, find out the pin bank
+ * and the register base of the pin bank.
+ */
+static struct rockchip_pin_bank *pin_to_bank(struct rockchip_pinctrl *info,
+ unsigned pin)
+{
+ struct rockchip_pin_bank *b = info->ctrl->pin_banks;
+
+ while (pin >= (b->pin_base + b->nr_pins))
+ b++;
+
+ return b;
+}
+
+static struct rockchip_pin_bank *bank_num_to_bank(
+ struct rockchip_pinctrl *info,
+ unsigned num)
+{
+ struct rockchip_pin_bank *b = info->ctrl->pin_banks;
+ int i;
+
+ for (i = 0; i < info->ctrl->nr_banks; i++, b++) {
+ if (b->bank_num == num)
+ return b;
+ }
+
+ return ERR_PTR(-EINVAL);
+}
+
+/*
+ * Pinctrl_ops handling
+ */
+
+static int rockchip_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->ngroups;
+}
+
+static const char *rockchip_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->groups[selector].name;
+}
+
+static int rockchip_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned selector, const unsigned **pins,
+ unsigned *npins)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ if (selector >= info->ngroups)
+ return -EINVAL;
+
+ *pins = info->groups[selector].pins;
+ *npins = info->groups[selector].npins;
+
+ return 0;
+}
+
+static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np,
+ struct pinctrl_map **map, unsigned *num_maps)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ const struct rockchip_pin_group *grp;
+ struct pinctrl_map *new_map;
+ struct device_node *parent;
+ int map_num = 1;
+ int i;
+
+ /*
+ * first find the group of this node and check if we need to create
+ * config maps for pins
+ */
+ grp = pinctrl_name_to_group(info, np->name);
+ if (!grp) {
+ dev_err(info->dev, "unable to find group for node %s\n",
+ np->name);
+ return -EINVAL;
+ }
+
+ map_num += grp->npins;
+ new_map = devm_kzalloc(pctldev->dev, sizeof(*new_map) * map_num,
+ GFP_KERNEL);
+ if (!new_map)
+ return -ENOMEM;
+
+ *map = new_map;
+ *num_maps = map_num;
+
+ /* create mux map */
+ parent = of_get_parent(np);
+ if (!parent) {
+ devm_kfree(pctldev->dev, new_map);
+ return -EINVAL;
+ }
+ new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
+ new_map[0].data.mux.function = parent->name;
+ new_map[0].data.mux.group = np->name;
+ of_node_put(parent);
+
+ /* create config map */
+ new_map++;
+ for (i = 0; i < grp->npins; i++) {
+ new_map[i].type = PIN_MAP_TYPE_CONFIGS_PIN;
+ new_map[i].data.configs.group_or_pin =
+ pin_get_name(pctldev, grp->pins[i]);
+ new_map[i].data.configs.configs = grp->data[i].configs;
+ new_map[i].data.configs.num_configs = grp->data[i].nconfigs;
+ }
+
+ pinctrl_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
+ (*map)->data.mux.function, (*map)->data.mux.group, map_num);
+
+ return 0;
+}
+
+static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *map, unsigned num_maps)
+{
+}
+
+static const struct pinctrl_ops rockchip_pctrl_ops = {
+ .get_groups_count = rockchip_get_groups_count,
+ .get_group_name = rockchip_get_group_name,
+ .get_group_pins = rockchip_get_group_pins,
+ .dt_node_to_map = rockchip_dt_node_to_map,
+ .dt_free_map = rockchip_dt_free_map,
+};
+
+/*
+ * Hardware access
+ */
+
+static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+ int iomux_num = (pin / 8);
+ struct regmap *regmap;
+ unsigned int val;
+ int reg, ret, mask;
+ u8 bit;
+
+ if (iomux_num > 3)
+ return -EINVAL;
+
+ if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
+ dev_err(info->dev, "pin %d is unrouted\n", pin);
+ return -EINVAL;
+ }
+
+ if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY)
+ return RK_FUNC_GPIO;
+
+ regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
+ ? info->regmap_pmu : info->regmap_base;
+
+ /* get basic quadrupel of mux registers and the correct reg inside */
+ mask = (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) ? 0xf : 0x3;
+ reg = bank->iomux[iomux_num].offset;
+ if (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) {
+ if ((pin % 8) >= 4)
+ reg += 0x4;
+ bit = (pin % 4) * 4;
+ } else {
+ bit = (pin % 8) * 2;
+ }
+
+ ret = regmap_read(regmap, reg, &val);
+ if (ret)
+ return ret;
+
+ return ((val >> bit) & mask);
+}
+
+/*
+ * Set a new mux function for a pin.
+ *
+ * The register is divided into the upper and lower 16 bit. When changing
+ * a value, the previous register value is not read and changed. Instead
+ * it seems the changed bits are marked in the upper 16 bit, while the
+ * changed value gets set in the same offset in the lower 16 bit.
+ * All pin settings seem to be 2 bit wide in both the upper and lower
+ * parts.
+ * @bank: pin bank to change
+ * @pin: pin to change
+ * @mux: new mux function to set
+ */
+static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+ int iomux_num = (pin / 8);
+ struct regmap *regmap;
+ int reg, ret, mask;
+ unsigned long flags;
+ u8 bit;
+ u32 data, rmask;
+
+ if (iomux_num > 3)
+ return -EINVAL;
+
+ if (bank->iomux[iomux_num].type & IOMUX_UNROUTED) {
+ dev_err(info->dev, "pin %d is unrouted\n", pin);
+ return -EINVAL;
+ }
+
+ if (bank->iomux[iomux_num].type & IOMUX_GPIO_ONLY) {
+ if (mux != RK_FUNC_GPIO) {
+ dev_err(info->dev,
+ "pin %d only supports a gpio mux\n", pin);
+ return -ENOTSUPP;
+ } else {
+ return 0;
+ }
+ }
+
+ pinctrl_dbg(info->dev, "setting mux of GPIO%d-%d to %d\n",
+ bank->bank_num, pin, mux);
+
+ regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
+ ? info->regmap_pmu : info->regmap_base;
+
+ /* get basic quadrupel of mux registers and the correct reg inside */
+ mask = (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) ? 0xf : 0x3;
+ reg = bank->iomux[iomux_num].offset;
+ if (bank->iomux[iomux_num].type & IOMUX_WIDTH_4BIT) {
+ if ((pin % 8) >= 4)
+ reg += 0x4;
+ bit = (pin % 4) * 4;
+ } else {
+ bit = (pin % 8) * 2;
+ }
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ data = (mask << (bit + 16));
+ rmask = data | (data >> 16);
+ data |= (mux & mask) << bit;
+ ret = regmap_update_bits(regmap, reg, rmask, data);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ return ret;
+}
+
+#define RK2928_PULL_OFFSET 0x118
+#define RK2928_PULL_PINS_PER_REG 16
+#define RK2928_PULL_BANK_STRIDE 8
+
+static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+
+ *regmap = info->regmap_base;
+ *reg = RK2928_PULL_OFFSET;
+ *reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
+ *reg += (pin_num / RK2928_PULL_PINS_PER_REG) * 4;
+
+ *bit = pin_num % RK2928_PULL_PINS_PER_REG;
+};
+
+#define RK3188_PULL_OFFSET 0x164
+#define RK3188_PULL_BITS_PER_PIN 2
+#define RK3188_PULL_PINS_PER_REG 8
+#define RK3188_PULL_BANK_STRIDE 16
+#define RK3188_PULL_PMU_OFFSET 0x64
+
+static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+
+ /* The first 12 pins of the first bank are located elsewhere */
+ if (bank->bank_num == 0 && pin_num < 12) {
+ *regmap = info->regmap_pmu ? info->regmap_pmu
+ : bank->regmap_pull;
+ *reg = info->regmap_pmu ? RK3188_PULL_PMU_OFFSET : 0;
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3188_PULL_PINS_PER_REG;
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_pull ? info->regmap_pull
+ : info->regmap_base;
+ *reg = info->regmap_pull ? 0 : RK3188_PULL_OFFSET;
+
+ /* correct the offset, as it is the 2nd pull register */
+ *reg -= 4;
+ *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+
+ /*
+ * The bits in these registers have an inverse ordering
+ * with the lowest pin being in bits 15:14 and the highest
+ * pin in bits 1:0
+ */
+ *bit = 7 - (pin_num % RK3188_PULL_PINS_PER_REG);
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ }
+}
+
+#define RK3288_PULL_OFFSET 0x140
+static void rk3288_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+
+ /* The first 24 pins of the first bank are located in PMU */
+ if (bank->bank_num == 0) {
+ *regmap = info->regmap_pmu;
+ *reg = RK3188_PULL_PMU_OFFSET;
+
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3188_PULL_PINS_PER_REG;
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ *reg = RK3288_PULL_OFFSET;
+
+ /* correct the offset, as we're starting with the 2nd bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ }
+}
+
+#define RK3368_PULL_PMU_OFFSET 0x10
+#define RK3368_PULL_OFFSET 0x100
+static void rk3368_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+
+ /* The first 24 pins of the first bank are located in PMU */
+ if (bank->bank_num == 0) {
+ *regmap = info->regmap_pmu;
+ *reg = RK3368_PULL_PMU_OFFSET;
+
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3188_PULL_PINS_PER_REG;
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ *reg = RK3368_PULL_OFFSET;
+
+ /* correct the offset, as we're starting with the 2nd bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3188_PULL_PINS_PER_REG);
+ *bit *= RK3188_PULL_BITS_PER_PIN;
+ }
+}
+
+
+#define RK3288_DRV_PMU_OFFSET 0x70
+#define RK3288_DRV_GRF_OFFSET 0x1c0
+#define RK3288_DRV_BITS_PER_PIN 2
+#define RK3288_DRV_PINS_PER_REG 8
+#define RK3288_DRV_BANK_STRIDE 16
+static int rk3288_drv_list[] = { 2, 4, 8, 12 };
+
+#define RK3368_DRV_PMU_OFFSET 0x20
+#define RK3368_DRV_GRF_OFFSET 0x200
+
+
+static void rk3288_calc_drv_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+
+ /* The first 24 pins of the first bank are located in PMU */
+ if (bank->bank_num == 0) {
+ *regmap = info->regmap_pmu;
+ if(ctrl->type == RK3288)
+ *reg = RK3288_DRV_PMU_OFFSET;
+ else if (ctrl->type == RK3368)
+ *reg = RK3368_DRV_PMU_OFFSET;
+
+ *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
+ *bit = pin_num % RK3288_DRV_PINS_PER_REG;
+ *bit *= RK3288_DRV_BITS_PER_PIN;
+ } else {
+ *regmap = info->regmap_base;
+ if(ctrl->type == RK3288)
+ *reg = RK3288_DRV_GRF_OFFSET;
+ else if (ctrl->type == RK3368)
+ *reg = RK3368_DRV_GRF_OFFSET;
+
+
+ /* correct the offset, as we're starting with the 2nd bank */
+ *reg -= 0x10;
+ *reg += bank->bank_num * RK3288_DRV_BANK_STRIDE;
+ *reg += ((pin_num / RK3288_DRV_PINS_PER_REG) * 4);
+
+ *bit = (pin_num % RK3288_DRV_PINS_PER_REG);
+ *bit *= RK3288_DRV_BITS_PER_PIN;
+ }
+}
+
+static int rk3288_get_drive(struct rockchip_pin_bank *bank, int pin_num)
+{
+ struct regmap *regmap;
+ int reg, ret;
+ u32 data;
+ u8 bit;
+
+ rk3288_calc_drv_reg_and_bit(bank, pin_num, ®map, ®, &bit);
+
+ ret = regmap_read(regmap, reg, &data);
+ if (ret)
+ return ret;
+
+ data >>= bit;
+ data &= (1 << RK3288_DRV_BITS_PER_PIN) - 1;
+
+ return rk3288_drv_list[data];
+}
+
+static int rk3288_set_drive(struct rockchip_pin_bank *bank, int pin_num,
+ int strength)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+ struct regmap *regmap;
+ unsigned long flags;
+ int reg, ret, i;
+ u32 data, rmask;
+ u8 bit;
+
+ rk3288_calc_drv_reg_and_bit(bank, pin_num, ®map, ®, &bit);
+
+ ret = -EINVAL;
+ for (i = 0; i < ARRAY_SIZE(rk3288_drv_list); i++) {
+ if (rk3288_drv_list[i] == strength) {
+ ret = i;
+ break;
+ }
+ }
+
+ if (ret < 0) {
+ dev_err(info->dev, "unsupported driver strength %d\n",
+ strength);
+ return ret;
+ }
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ /* enable the write to the equivalent lower bits */
+ data = ((1 << RK3288_DRV_BITS_PER_PIN) - 1) << (bit + 16);
+ rmask = data | (data >> 16);
+ data |= (ret << bit);
+
+ ret = regmap_update_bits(regmap, reg, rmask, data);
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ return ret;
+}
+
+static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct regmap *regmap;
+ int reg, ret;
+ u8 bit;
+ u32 data;
+
+ /* rk3066b does support any pulls */
+ if (ctrl->type == RK3066B)
+ return PIN_CONFIG_BIAS_DISABLE;
+
+ ctrl->pull_calc_reg(bank, pin_num, ®map, ®, &bit);
+
+ ret = regmap_read(regmap, reg, &data);
+ if (ret)
+ return ret;
+
+ switch (ctrl->type) {
+ case RK2928:
+ return !(data & BIT(bit))
+ ? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
+ : PIN_CONFIG_BIAS_DISABLE;
+ case RK3188:
+ case RK3288:
+ case RK3368:
+ data >>= bit;
+ data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1;
+
+ switch (data) {
+ case 0:
+ return PIN_CONFIG_BIAS_DISABLE;
+ case 1:
+ return PIN_CONFIG_BIAS_PULL_UP;
+ case 2:
+ return PIN_CONFIG_BIAS_PULL_DOWN;
+ case 3:
+ return PIN_CONFIG_BIAS_BUS_HOLD;
+ }
+
+ dev_err(info->dev, "unknown pull setting\n");
+ return -EIO;
+ default:
+ dev_err(info->dev, "unsupported pinctrl type\n");
+ return -EINVAL;
+ };
+}
+
+static int rockchip_set_pull(struct rockchip_pin_bank *bank,
+ int pin_num, int pull)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct regmap *regmap;
+ int reg, ret;
+ unsigned long flags;
+ u8 bit;
+ u32 data, rmask;
+
+ pinctrl_dbg(info->dev, "setting pull of GPIO%d-%d to %d\n",
+ bank->bank_num, pin_num, pull);
+
+ /* rk3066b does support any pulls */
+ if (ctrl->type == RK3066B)
+ return pull ? -EINVAL : 0;
+
+ ctrl->pull_calc_reg(bank, pin_num, ®map, ®, &bit);
+
+ switch (ctrl->type) {
+ case RK2928:
+ spin_lock_irqsave(&bank->slock, flags);
+
+ data = BIT(bit + 16);
+ if (pull == PIN_CONFIG_BIAS_DISABLE)
+ data |= BIT(bit);
+ ret = regmap_write(regmap, reg, data);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+ break;
+ case RK3188:
+ case RK3288:
+ case RK3368:
+ spin_lock_irqsave(&bank->slock, flags);
+
+ /* enable the write to the equivalent lower bits */
+ data = ((1 << RK3188_PULL_BITS_PER_PIN) - 1) << (bit + 16);
+ rmask = data | (data >> 16);
+
+ switch (pull) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ data |= (1 << bit);
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ data |= (2 << bit);
+ break;
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ data |= (3 << bit);
+ break;
+ default:
+ spin_unlock_irqrestore(&bank->slock, flags);
+ dev_err(info->dev, "unsupported pull setting %d\n",
+ pull);
+ return -EINVAL;
+ }
+
+ ret = regmap_update_bits(regmap, reg, rmask, data);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+ break;
+ default:
+ dev_err(info->dev, "unsupported pinctrl type\n");
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+/*
+ * Pinmux_ops handling
+ */
+
+static int rockchip_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->nfunctions;
+}
+
+static const char *rockchip_pmx_get_func_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ return info->functions[selector].name;
+}
+
+static int rockchip_pmx_get_groups(struct pinctrl_dev *pctldev,
+ unsigned selector, const char * const **groups,
+ unsigned * const num_groups)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+
+ *groups = info->functions[selector].groups;
+ *num_groups = info->functions[selector].ngroups;
+
+ return 0;
+}
+
+static int rockchip_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ const unsigned int *pins = info->groups[group].pins;
+ const struct rockchip_pin_config *data = info->groups[group].data;
+ struct rockchip_pin_bank *bank;
+ int cnt, ret = 0;
+
+ pinctrl_dbg(info->dev, "enable function %s group %s\n",
+ info->functions[selector].name, info->groups[group].name);
+
+ /*
+ * for each pin in the pin group selected, program the correspoding pin
+ * pin function number in the config register.
+ */
+ for (cnt = 0; cnt < info->groups[group].npins; cnt++) {
+ bank = pin_to_bank(info, pins[cnt]);
+ ret = rockchip_set_mux(bank, pins[cnt] - bank->pin_base,
+ data[cnt].func);
+ if (ret)
+ break;
+ }
+
+ if (ret) {
+ /* revert the already done pin settings */
+ for (cnt--; cnt >= 0; cnt--)
+ rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
+
+ return ret;
+ }
+
+ return 0;
+}
+
+static void rockchip_pmx_disable(struct pinctrl_dev *pctldev,
+ unsigned selector, unsigned group)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ const unsigned int *pins = info->groups[group].pins;
+ struct rockchip_pin_bank *bank;
+ int cnt;
+
+ pinctrl_dbg(info->dev, "disable function %s group %s\n",
+ info->functions[selector].name, info->groups[group].name);
+
+ for (cnt = 0; cnt < info->groups[group].npins; cnt++) {
+ bank = pin_to_bank(info, pins[cnt]);
+ rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
+ }
+}
+
+/*
+ * The calls to gpio_direction_output() and gpio_direction_input()
+ * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
+ * function called from the gpiolib interface).
+ */
+static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset, bool input)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ struct rockchip_pin_bank *bank;
+ struct gpio_chip *chip;
+ int pin, ret;
+ u32 data;
+
+ chip = range->gc;
+ bank = gc_to_pin_bank(chip);
+ pin = offset - chip->base;
+
+ dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n",
+ offset, range->name, pin, input ? "input" : "output");
+
+ ret = rockchip_set_mux(bank, pin, RK_FUNC_GPIO);
+ if (ret < 0)
+ return ret;
+
+ data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
+ /* set bit to 1 for output, 0 for input */
+ if (!input)
+ data |= BIT(pin);
+ else
+ data &= ~BIT(pin);
+ writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
+
+ return 0;
+}
+
+static const struct pinmux_ops rockchip_pmx_ops = {
+ .get_functions_count = rockchip_pmx_get_funcs_count,
+ .get_function_name = rockchip_pmx_get_func_name,
+ .get_function_groups = rockchip_pmx_get_groups,
+ .enable = rockchip_pmx_enable,
+ .disable = rockchip_pmx_disable,
+ .gpio_set_direction = rockchip_pmx_gpio_set_direction,
+};
+
+/*
+ * Pinconf_ops handling
+ */
+
+static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
+ enum pin_config_param pull)
+{
+ switch (ctrl->type) {
+ case RK2928:
+ return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
+ pull == PIN_CONFIG_BIAS_DISABLE);
+ case RK3066B:
+ return pull ? false : true;
+ case RK3188:
+ case RK3288:
+ case RK3368:
+ return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
+ }
+
+ return false;
+}
+
+static int rockchip_gpio_direction_output(struct gpio_chip *gc,
+ unsigned offset, int value);
+static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset);
+
+/* set the pin config settings for a specified pin */
+static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long configs)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
+ enum pin_config_param param;
+ u16 arg;
+ //int i;
+ int rc;
+
+ //for (i = 0; i < num_configs; i++) {
+ param = pinconf_to_config_param(configs);
+ arg = pinconf_to_config_argument(configs);
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ rc = rockchip_set_pull(bank, pin - bank->pin_base,
+ param);
+ if (rc)
+ return rc;
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ if (!rockchip_pinconf_pull_valid(info->ctrl, param))
+ return -ENOTSUPP;
+
+ if (!arg)
+ return -EINVAL;
+
+ rc = rockchip_set_pull(bank, pin - bank->pin_base,
+ param);
+ if (rc)
+ return rc;
+ break;
+ case PIN_CONFIG_OUTPUT:
+ rc = rockchip_gpio_direction_output(&bank->gpio_chip,
+ pin - bank->pin_base,
+ arg);
+ if (rc)
+ return rc;
+ break;
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ /* rk3288 RK3368 is the first with per-pin drive-strength */
+ if ((info->ctrl->type != RK3288) && ((info->ctrl->type != RK3368)))
+ return -ENOTSUPP;
+
+ rc = rk3288_set_drive(bank, pin - bank->pin_base, arg);
+ if (rc < 0)
+ return rc;
+ break;
+ default:
+ return -ENOTSUPP;
+ break;
+ }
+ //} /* for each config */
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin */
+static int rockchip_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ struct rockchip_pin_bank *bank = pin_to_bank(info, pin);
+ enum pin_config_param param = pinconf_to_config_param(*config);
+ u16 arg;
+ int rc;
+
+ switch (param) {
+ case PIN_CONFIG_BIAS_DISABLE:
+ if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
+ return -EINVAL;
+
+ arg = 0;
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ if (!rockchip_pinconf_pull_valid(info->ctrl, param))
+ return -ENOTSUPP;
+
+ if (rockchip_get_pull(bank, pin - bank->pin_base) != param)
+ return -EINVAL;
+
+ arg = 1;
+ break;
+ case PIN_CONFIG_OUTPUT:
+ rc = rockchip_get_mux(bank, pin - bank->pin_base);
+ if (rc != RK_FUNC_GPIO)
+ return -EINVAL;
+
+ rc = rockchip_gpio_get(&bank->gpio_chip, pin - bank->pin_base);
+ if (rc < 0)
+ return rc;
+
+ arg = rc ? 1 : 0;
+ break;
+ case PIN_CONFIG_DRIVE_STRENGTH:
+ /* rk3288 RK3368 is the first with per-pin drive-strength */
+ if ((info->ctrl->type != RK3288) && ((info->ctrl->type != RK3368)))
+ return -ENOTSUPP;
+
+ rc = rk3288_get_drive(bank, pin - bank->pin_base);
+ if (rc < 0)
+ return rc;
+
+ arg = rc;
+ break;
+ default:
+ return -ENOTSUPP;
+ break;
+ }
+
+ *config = pinconf_to_config_packed(param, arg);
+
+ return 0;
+}
+
+static const struct pinconf_ops rockchip_pinconf_ops = {
+ .pin_config_get = rockchip_pinconf_get,
+ .pin_config_set = rockchip_pinconf_set,
+ .is_generic = true,
+};
+
+static const struct of_device_id rockchip_bank_match[] = {
+ { .compatible = "rockchip,gpio-bank" },
+ { .compatible = "rockchip,rk3188-gpio-bank0" },
+ {},
+};
+
+static void rockchip_pinctrl_child_count(struct rockchip_pinctrl *info,
+ struct device_node *np)
+{
+ struct device_node *child;
+
+ for_each_child_of_node(np, child) {
+ if (of_match_node(rockchip_bank_match, child))
+ continue;
+
+ info->nfunctions++;
+ info->ngroups += of_get_child_count(child);
+ }
+}
+
+static int rockchip_pinctrl_parse_groups(struct device_node *np,
+ struct rockchip_pin_group *grp,
+ struct rockchip_pinctrl *info,
+ u32 index)
+{
+ struct rockchip_pin_bank *bank;
+ int size;
+ const __be32 *list;
+ int num;
+ int i, j;
+ int ret;
+
+ dev_dbg(info->dev, "group(%d): %s\n", index, np->name);
+
+ /* Initialise group */
+ grp->name = np->name;
+
+ /*
+ * the binding format is rockchip,pins = <bank pin mux CONFIG>,
+ * do sanity check and calculate pins number
+ */
+ list = of_get_property(np, "rockchip,pins", &size);
+ /* we do not check return since it's safe node passed down */
+ size /= sizeof(*list);
+ if (!size || size % 4) {
+ dev_err(info->dev, "wrong pins number or pins and configs should be by 4\n");
+ return -EINVAL;
+ }
+
+ grp->npins = size / 4;
+
+ grp->pins = devm_kzalloc(info->dev, grp->npins * sizeof(unsigned int),
+ GFP_KERNEL);
+ grp->data = devm_kzalloc(info->dev, grp->npins *
+ sizeof(struct rockchip_pin_config),
+ GFP_KERNEL);
+ if (!grp->pins || !grp->data)
+ return -ENOMEM;
+
+ for (i = 0, j = 0; i < size; i += 4, j++) {
+ const __be32 *phandle;
+ struct device_node *np_config;
+
+ num = be32_to_cpu(*list++);
+ bank = bank_num_to_bank(info, num);
+ if (IS_ERR(bank))
+ return PTR_ERR(bank);
+
+ grp->pins[j] = bank->pin_base + be32_to_cpu(*list++);
+ grp->data[j].func = be32_to_cpu(*list++);
+
+ phandle = list++;
+ if (!phandle)
+ return -EINVAL;
+
+ np_config = of_find_node_by_phandle(be32_to_cpup(phandle));
+ ret = pinconf_generic_parse_dt_config(np_config,
+ &grp->data[j].configs, &grp->data[j].nconfigs);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rockchip_pinctrl_parse_functions(struct device_node *np,
+ struct rockchip_pinctrl *info,
+ u32 index)
+{
+ struct device_node *child;
+ struct rockchip_pmx_func *func;
+ struct rockchip_pin_group *grp;
+ int ret;
+ static u32 grp_index;
+ u32 i = 0;
+
+ dev_dbg(info->dev, "parse function(%d): %s\n", index, np->name);
+
+ func = &info->functions[index];
+
+ /* Initialise function */
+ func->name = np->name;
+ func->ngroups = of_get_child_count(np);
+ if (func->ngroups <= 0)
+ return 0;
+
+ func->groups = devm_kzalloc(info->dev,
+ func->ngroups * sizeof(char *), GFP_KERNEL);
+ if (!func->groups)
+ return -ENOMEM;
+
+ for_each_child_of_node(np, child) {
+ func->groups[i] = child->name;
+ grp = &info->groups[grp_index++];
+ ret = rockchip_pinctrl_parse_groups(child, grp, info, i++);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rockchip_pinctrl_parse_dt(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *child;
+ int ret;
+ int i;
+
+ rockchip_pinctrl_child_count(info, np);
+
+ dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions);
+ dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups);
+
+ info->functions = devm_kzalloc(dev, info->nfunctions *
+ sizeof(struct rockchip_pmx_func),
+ GFP_KERNEL);
+ if (!info->functions) {
+ dev_err(dev, "failed to allocate memory for function list\n");
+ return -EINVAL;
+ }
+
+ info->groups = devm_kzalloc(dev, info->ngroups *
+ sizeof(struct rockchip_pin_group),
+ GFP_KERNEL);
+ if (!info->groups) {
+ dev_err(dev, "failed allocate memory for ping group list\n");
+ return -EINVAL;
+ }
+
+ i = 0;
+
+ for_each_child_of_node(np, child) {
+ if (of_match_node(rockchip_bank_match, child))
+ continue;
+
+ ret = rockchip_pinctrl_parse_functions(child, info, i++);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to parse function\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int rockchip_pinctrl_register(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct pinctrl_desc *ctrldesc = &info->pctl;
+ struct pinctrl_pin_desc *pindesc, *pdesc;
+ struct rockchip_pin_bank *pin_bank;
+ int pin, bank, ret;
+ int k;
+
+ ctrldesc->name = "rockchip-pinctrl";
+ ctrldesc->owner = THIS_MODULE;
+ ctrldesc->pctlops = &rockchip_pctrl_ops;
+ ctrldesc->pmxops = &rockchip_pmx_ops;
+ ctrldesc->confops = &rockchip_pinconf_ops;
+
+ pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
+ info->ctrl->nr_pins, GFP_KERNEL);
+ if (!pindesc) {
+ dev_err(&pdev->dev, "mem alloc for pin descriptors failed\n");
+ return -ENOMEM;
+ }
+ ctrldesc->pins = pindesc;
+ ctrldesc->npins = info->ctrl->nr_pins;
+
+ pdesc = pindesc;
+ for (bank = 0 , k = 0; bank < info->ctrl->nr_banks; bank++) {
+ pin_bank = &info->ctrl->pin_banks[bank];
+ for (pin = 0; pin < pin_bank->nr_pins; pin++, k++) {
+ pdesc->number = k;
+ pdesc->name = kasprintf(GFP_KERNEL, "%s-%d",
+ pin_bank->name, pin);
+ pdesc++;
+ }
+ }
+
+ info->pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, info);
+ if (!info->pctl_dev) {
+ dev_err(&pdev->dev, "could not register pinctrl driver\n");
+ return -EINVAL;
+ }
+
+ for (bank = 0; bank < info->ctrl->nr_banks; ++bank) {
+ pin_bank = &info->ctrl->pin_banks[bank];
+ pin_bank->grange.name = pin_bank->name;
+ pin_bank->grange.id = bank;
+ pin_bank->grange.pin_base = pin_bank->pin_base;
+ pin_bank->grange.base = pin_bank->gpio_chip.base;
+ pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
+ pin_bank->grange.gc = &pin_bank->gpio_chip;
+ pinctrl_add_gpio_range(info->pctl_dev, &pin_bank->grange);
+ }
+
+ ret = rockchip_pinctrl_parse_dt(pdev, info);
+ if (ret) {
+ pinctrl_unregister(info->pctl_dev);
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * GPIO handling
+ */
+
+static int rockchip_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ return pinctrl_request_gpio(chip->base + offset);
+}
+
+static void rockchip_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ pinctrl_free_gpio(chip->base + offset);
+}
+
+static void rockchip_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct rockchip_pin_bank *bank = gc_to_pin_bank(gc);
+ void __iomem *reg = bank->reg_base + GPIO_SWPORT_DR;
+ unsigned long flags;
+ u32 data;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ data = readl(reg);
+ data &= ~BIT(offset);
+ if (value)
+ data |= BIT(offset);
+ writel(data, reg);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+}
+
+/*
+ * Returns the level of the pin for input direction and setting of the DR
+ * register for output gpios.
+ */
+static int rockchip_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct rockchip_pin_bank *bank = gc_to_pin_bank(gc);
+ u32 data;
+
+ data = readl(bank->reg_base + GPIO_EXT_PORT);
+ data >>= offset;
+ data &= 1;
+ return data;
+}
+
+/*
+ * gpiolib gpio_direction_input callback function. The setting of the pin
+ * mux function as 'gpio input' will be handled by the pinctrl susbsystem
+ * interface.
+ */
+static int rockchip_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ return pinctrl_gpio_direction_input(gc->base + offset);
+}
+
+/*
+ * gpiolib gpio_direction_output callback function. The setting of the pin
+ * mux function as 'gpio output' will be handled by the pinctrl susbsystem
+ * interface.
+ */
+static int rockchip_gpio_direction_output(struct gpio_chip *gc,
+ unsigned offset, int value)
+{
+ rockchip_gpio_set(gc, offset, value);
+ return pinctrl_gpio_direction_output(gc->base + offset);
+}
+
+/*
+ * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
+ * and a virtual IRQ, if not already present.
+ */
+static int rockchip_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct rockchip_pin_bank *bank = gc_to_pin_bank(gc);
+ unsigned int virq;
+
+ if (!bank->domain)
+ return -ENXIO;
+
+ virq = irq_create_mapping(bank->domain, offset);
+
+ return (virq) ? : -ENXIO;
+}
+
+static const struct gpio_chip rockchip_gpiolib_chip = {
+ .request = rockchip_gpio_request,
+ .free = rockchip_gpio_free,
+ .set = rockchip_gpio_set,
+ .get = rockchip_gpio_get,
+ .direction_input = rockchip_gpio_direction_input,
+ .direction_output = rockchip_gpio_direction_output,
+ .to_irq = rockchip_gpio_to_irq,
+ .owner = THIS_MODULE,
+};
+
+/*
+ * Interrupt handling
+ */
+
+static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc)
+{
+ struct irq_chip *chip = irq_get_chip(irq);
+ struct rockchip_pin_bank *bank = irq_get_handler_data(irq);
+ u32 polarity = 0, data = 0;
+ u32 pend;
+ bool edge_changed = false;
+
+ pinctrl_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name);
+
+ chained_irq_enter(chip, desc);
+
+ pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS);
+
+ if (bank->toggle_edge_mode) {
+ polarity = readl_relaxed(bank->reg_base +
+ GPIO_INT_POLARITY);
+ data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT);
+ }
+
+ while (pend) {
+ unsigned int virq;
+
+ irq = __ffs(pend);
+ pend &= ~BIT(irq);
+ virq = irq_linear_revmap(bank->domain, irq);
+
+ if (!virq) {
+ dev_err(bank->drvdata->dev, "unmapped irq %d\n", irq);
+ continue;
+ }
+
+ pinctrl_dbg(bank->drvdata->dev, "handling irq %d\n", irq);
+
+ /*
+ * Triggering IRQ on both rising and falling edge
+ * needs manual intervention.
+ */
+ if (bank->toggle_edge_mode & BIT(irq)) {
+ if (data & BIT(irq))
+ polarity &= ~BIT(irq);
+ else
+ polarity |= BIT(irq);
+
+ edge_changed = true;
+ }
+
+ generic_handle_irq(virq);
+ }
+
+ if (bank->toggle_edge_mode && edge_changed) {
+ /* Interrupt params should only be set with ints disabled */
+ data = readl_relaxed(bank->reg_base + GPIO_INTEN);
+ writel_relaxed(0, bank->reg_base + GPIO_INTEN);
+ writel(polarity, bank->reg_base + GPIO_INT_POLARITY);
+ writel(data, bank->reg_base + GPIO_INTEN);
+ }
+
+ chained_irq_exit(chip, desc);
+}
+
+static int rockchip_gpio_irq_set_type(struct irq_data *d, unsigned int type)
+{
+ struct rockchip_pin_bank *bank = irq_data_get_irq_chip_data(d);
+ //struct rockchip_pinctrl *info = bank->drvdata;
+ u32 mask = BIT(d->hwirq);
+ u32 polarity;
+ u32 level;
+ u32 data;
+ int ret;
+ unsigned long flags;
+
+ /* make sure the pin is configured as gpio input */
+ ret = rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
+ if (ret < 0)
+ return ret;
+
+ data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
+ data &= ~mask;
+ writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
+
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ __irq_set_handler_locked(d->irq, handle_edge_irq);
+ else
+ __irq_set_handler_locked(d->irq, handle_level_irq);
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ level = readl_relaxed(bank->reg_base + GPIO_INTTYPE_LEVEL);
+ polarity = readl_relaxed(bank->reg_base + GPIO_INT_POLARITY);
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_BOTH:
+ bank->toggle_edge_mode |= mask;
+ level |= mask;
+
+ /*
+ * Determine gpio state. If 1 next interrupt should be falling
+ * otherwise rising.
+ */
+ data = readl(bank->reg_base + GPIO_EXT_PORT);
+ if (data & mask)
+ polarity &= ~mask;
+ else
+ polarity |= mask;
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ bank->toggle_edge_mode &= ~mask;
+ level |= mask;
+ polarity |= mask;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ bank->toggle_edge_mode &= ~mask;
+ level |= mask;
+ polarity &= ~mask;
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ bank->toggle_edge_mode &= ~mask;
+ level &= ~mask;
+ polarity |= mask;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ bank->toggle_edge_mode &= ~mask;
+ level &= ~mask;
+ polarity &= ~mask;
+ break;
+ default:
+ //irq_gc_unlock(gc);
+ return -EINVAL;
+ }
+
+ writel_relaxed(level, bank->reg_base + GPIO_INTTYPE_LEVEL);
+ writel_relaxed(polarity, bank->reg_base + GPIO_INT_POLARITY);
+
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ //DBG_PINCTRL("%s:type=%d,irq=%d,hwirq=%d,ok\n",__func__,type, d->irq, (int)d->hwirq);
+ return 0;
+}
+
+static inline void rockchip_gpio_bit_op(void __iomem *reg_base
+ , unsigned int offset, u32 bit, unsigned char flag)
+{
+ u32 val = __raw_readl(reg_base + offset);
+ if (flag)
+ val |= BIT(bit);
+ else
+ val &= ~BIT(bit);
+
+
+ __raw_writel(val, reg_base + offset);
+}
+
+static inline unsigned gpio_to_bit(struct rockchip_pin_bank *bank, unsigned gpio)
+{
+ while (gpio >= (bank->pin_base + bank->nr_pins))
+ bank++;
+
+ return gpio - bank->pin_base;
+}
+
+static inline unsigned offset_to_bit(unsigned offset)
+{
+ return 1u << offset;
+}
+
+static void GPIOEnableIntr(void __iomem *reg_base, unsigned int bit)
+{
+ rockchip_gpio_bit_op(reg_base, GPIO_INTEN, bit, 1);
+}
+
+static void GPIODisableIntr(void __iomem *reg_base, unsigned int bit)
+{
+ rockchip_gpio_bit_op(reg_base, GPIO_INTEN, bit, 0);
+}
+
+static void GPIOAckIntr(void __iomem *reg_base, unsigned int bit)
+{
+ rockchip_gpio_bit_op(reg_base, GPIO_PORTS_EOI, bit, 1);
+}
+
+static int rockchip_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+ struct rockchip_pin_bank *bank = irq_data_get_irq_chip_data(d);
+ //struct rockchip_pinctrl *info = bank->drvdata;
+ u32 bit = d->hwirq;
+ unsigned long flags;
+ //int pin = d->hwirq;
+
+ spin_lock_irqsave(&bank->slock, flags);
+
+ if (on)
+ {
+ bank->suspend_wakeup |= BIT(bit);
+ }
+ else
+ {
+ bank->suspend_wakeup &= ~BIT(bit);
+ }
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ //DBG_PINCTRL("%s:irq=%d,hwirq=%d,bank->reg_base=0x%x,bit=%d\n"
+ //, __func__,d->irq, (int)d->hwirq, (int)bank->reg_base,bit);
+ return 0;
+}
+
+static void rockchip_gpio_irq_unmask(struct irq_data *d)
+{
+ struct rockchip_pin_bank *bank = irq_data_get_irq_chip_data(d);
+ //struct rockchip_pinctrl *info = bank->drvdata;
+ u32 bit = d->hwirq;
+ unsigned long flags;
+ //int pin = d->hwirq;
+
+ spin_lock_irqsave(&bank->slock, flags);
+ GPIOEnableIntr(bank->reg_base, bit);
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ //DBG_PINCTRL("%s:irq=%d,hwirq=%d,bank->reg_base=0x%x,bit=%d\n"
+ //, __func__,d->irq, (int)d->hwirq, (int)bank->reg_base,bit);
+}
+
+static void rockchip_gpio_irq_mask(struct irq_data *d)
+{
+ struct rockchip_pin_bank *bank = irq_data_get_irq_chip_data(d);
+ //struct rockchip_pinctrl *info = bank->drvdata;
+ //u32 bit = gpio_to_bit(bank, d->irq);
+ u32 bit = d->hwirq;
+ unsigned long flags;
+ //int pin = d->hwirq;
+
+ spin_lock_irqsave(&bank->slock, flags);
+ GPIODisableIntr(bank->reg_base, bit);
+ spin_unlock_irqrestore(&bank->slock, flags);
+
+ //DBG_PINCTRL("%s:irq=%d,hwirq=%d,bank->reg_base=0x%x,bit=%d\n"
+ //, __func__,d->irq, (int)d->hwirq, (int)bank->reg_base,bit);
+}
+
+static void rockchip_gpio_irq_ack(struct irq_data *d)
+{
+ struct rockchip_pin_bank *bank = irq_data_get_irq_chip_data(d);
+ //struct rockchip_pinctrl *info = bank->drvdata;
+ //u32 bit = gpio_to_bit(bank, d->irq);
+ u32 bit = d->hwirq;
+ //int pin = d->hwirq;
+
+ GPIOAckIntr(bank->reg_base, bit);
+
+ //DBG_PINCTRL("%s:irq=%d,hwirq=%d,bank->reg_base=0x%x,bit=%d\n"
+ //, __func__,d->irq, (int)d->hwirq, (int)bank->reg_base,bit);
+}
+
+static struct irq_chip rockchip_gpio_irq_chip = {
+ .name = "ROCKCHIP_GPIO_CHIP",
+ .irq_ack = rockchip_gpio_irq_ack,
+ .irq_disable = rockchip_gpio_irq_mask,
+ .irq_mask = rockchip_gpio_irq_mask,
+ .irq_unmask = rockchip_gpio_irq_unmask,
+ .irq_set_type = rockchip_gpio_irq_set_type,
+ .irq_set_wake = rockchip_gpio_irq_set_wake,
+};
+
+static int rockchip_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hwirq)
+{
+ struct rockchip_pin_bank *bank = d->host_data;
+ //struct rockchip_pinctrl *info = bank->drvdata;
+ struct irq_data *irq_data = irq_get_irq_data(irq);
+ //int pin = hwirq;
+
+ if (!bank)
+ {
+ printk("%s:bank=0x%p,irq=%d\n",__func__,bank, irq);
+ return -EINVAL;
+ }
+
+ irq_set_chip_and_handler(irq, &rockchip_gpio_irq_chip, handle_level_irq);
+ irq_set_chip_data(irq, bank);
+ set_irq_flags(irq, IRQF_VALID);
+
+ irq_data->hwirq = hwirq;
+ irq_data->irq = irq;
+
+ pinctrl_dbg(bank->drvdata->dev, "%s:irq = %d, hwirq =%ld\n",__func__,irq, hwirq);
+ return 0;
+}
+
+const struct irq_domain_ops rockchip_gpio_irq_ops = {
+ .map = rockchip_gpio_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
+static int rockchip_interrupts_register(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ //unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
+ int i;
+
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!bank->valid) {
+ dev_warn(&pdev->dev, "bank %s is not valid\n",
+ bank->name);
+ continue;
+ }
+
+ __raw_writel(0, bank->reg_base + GPIO_INTEN);
+
+ bank->drvdata = info;
+ bank->domain = irq_domain_add_linear(bank->of_node, 32,
+ &rockchip_gpio_irq_ops, bank);
+ if (!bank->domain) {
+ dev_warn(&pdev->dev, "could not initialize irq domain for bank %s\n",
+ bank->name);
+ continue;
+ }
+
+ //if(atomic_read(&info->bank_debug_flag) == (bank->bank_num + 1))
+ //printk("%s:bank_num=%d\n",__func__,bank->bank_num);
+
+ irq_set_handler_data(bank->irq, bank);
+ irq_set_chained_handler(bank->irq, rockchip_irq_demux);
+ }
+
+ return 0;
+}
+
+static int rockchip_gpiolib_register(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ struct gpio_chip *gc;
+ int ret;
+ int i;
+
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!bank->valid) {
+ dev_warn(&pdev->dev, "bank %s is not valid\n",
+ bank->name);
+ continue;
+ }
+
+ bank->gpio_chip = rockchip_gpiolib_chip;
+
+ gc = &bank->gpio_chip;
+ gc->base = bank->pin_base;
+ gc->ngpio = bank->nr_pins;
+ gc->dev = &pdev->dev;
+ gc->of_node = bank->of_node;
+ gc->label = bank->name;
+
+ ret = gpiochip_add(gc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
+ gc->label, ret);
+ goto fail;
+ }
+ }
+
+ rockchip_interrupts_register(pdev, info);
+
+ return 0;
+
+fail:
+ for (--i, --bank; i >= 0; --i, --bank) {
+ if (!bank->valid)
+ continue;
+
+ if (gpiochip_remove(&bank->gpio_chip))
+ dev_err(&pdev->dev, "gpio chip %s remove failed\n",
+ bank->gpio_chip.label);
+ }
+ return ret;
+}
+
+static int rockchip_gpiolib_unregister(struct platform_device *pdev,
+ struct rockchip_pinctrl *info)
+{
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ int ret = 0;
+ int i;
+
+ for (i = 0; !ret && i < ctrl->nr_banks; ++i, ++bank) {
+ if (!bank->valid)
+ continue;
+
+ ret = gpiochip_remove(&bank->gpio_chip);
+ }
+
+ if (ret)
+ dev_err(&pdev->dev, "gpio chip remove failed\n");
+
+ return ret;
+}
+
+static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
+ struct rockchip_pinctrl *info)
+{
+ struct resource res;
+ void __iomem *base;
+
+ if (of_address_to_resource(bank->of_node, 0, &res)) {
+ dev_err(info->dev, "cannot find IO resource for bank\n");
+ return -ENOENT;
+ }
+
+ bank->reg_base = devm_ioremap_resource(info->dev, &res);
+ if (IS_ERR(bank->reg_base))
+ return PTR_ERR(bank->reg_base);
+
+ /*
+ * special case, where parts of the pull setting-registers are
+ * part of the PMU register space
+ */
+ if (of_device_is_compatible(bank->of_node,
+ "rockchip,rk3188-gpio-bank0")) {
+ struct device_node *node;
+
+ node = of_parse_phandle(bank->of_node->parent,
+ "rockchip,pmu", 0);
+ if (!node) {
+ if (of_address_to_resource(bank->of_node, 1, &res)) {
+ dev_err(info->dev, "cannot find IO resource for bank\n");
+ return -ENOENT;
+ }
+
+ base = devm_ioremap_resource(info->dev, &res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+ rockchip_regmap_config.max_register =
+ resource_size(&res) - 4;
+ rockchip_regmap_config.name =
+ "rockchip,rk3188-gpio-bank0-pull";
+ bank->regmap_pull = devm_regmap_init_mmio(info->dev,
+ base,
+ &rockchip_regmap_config);
+ }
+ }
+
+ bank->irq = irq_of_parse_and_map(bank->of_node, 0);
+
+ //bank->clk = of_clk_get(bank->of_node, 0);
+ //if (IS_ERR(bank->clk))
+ //return PTR_ERR(bank->clk);
+
+ //return clk_prepare_enable(bank->clk);
+ return 0;
+}
+
+static const struct of_device_id rockchip_pinctrl_dt_match[];
+
+/* retrieve the soc specific data */
+static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(
+ struct rockchip_pinctrl *d,
+ struct platform_device *pdev)
+{
+ const struct of_device_id *match;
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *np;
+ struct rockchip_pin_ctrl *ctrl;
+ struct rockchip_pin_bank *bank;
+ int grf_offs, pmu_offs, i, j;
+
+ match = of_match_node(rockchip_pinctrl_dt_match, node);
+ ctrl = (struct rockchip_pin_ctrl *)match->data;
+
+ for_each_child_of_node(node, np) {
+ if (!of_find_property(np, "gpio-controller", NULL))
+ continue;
+
+ bank = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!strcmp(bank->name, np->name)) {
+ bank->of_node = np;
+
+ if (!rockchip_get_bank_data(bank, d))
+ bank->valid = true;
+
+ break;
+ }
+ }
+ }
+
+ grf_offs = ctrl->grf_mux_offset;
+ pmu_offs = ctrl->pmu_mux_offset;
+ bank = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ int bank_pins = 0;
+
+ spin_lock_init(&bank->slock);
+ bank->drvdata = d;
+ bank->pin_base = ctrl->nr_pins;
+ ctrl->nr_pins += bank->nr_pins;
+
+ /* calculate iomux offsets */
+ for (j = 0; j < 4; j++) {
+ struct rockchip_iomux *iom = &bank->iomux[j];
+ int inc;
+
+ if (bank_pins >= bank->nr_pins)
+ break;
+
+ /* preset offset value, set new start value */
+ if (iom->offset >= 0) {
+ if (iom->type & IOMUX_SOURCE_PMU)
+ pmu_offs = iom->offset;
+ else
+ grf_offs = iom->offset;
+ } else { /* set current offset */
+ iom->offset = (iom->type & IOMUX_SOURCE_PMU) ?
+ pmu_offs : grf_offs;
+ }
+
+ pinctrl_dbg(d->dev, "bank %d, iomux %d has offset 0x%x\n",
+ i, j, iom->offset);
+
+ /*
+ * Increase offset according to iomux width.
+ * 4bit iomux'es are spread over two registers.
+ */
+ inc = (iom->type & IOMUX_WIDTH_4BIT) ? 8 : 4;
+ if (iom->type & IOMUX_SOURCE_PMU)
+ pmu_offs += inc;
+ else
+ grf_offs += inc;
+
+ bank_pins += 8;
+ }
+ }
+
+ return ctrl;
+}
+
+static int rockchip_pinctrl_probe(struct platform_device *pdev)
+{
+ struct rockchip_pinctrl *info;
+ struct device *dev = &pdev->dev;
+ struct rockchip_pin_ctrl *ctrl;
+ struct device_node *np = pdev->dev.of_node, *node;
+ struct resource *res;
+ void __iomem *base;
+ int ret;
+
+ if (!dev->of_node) {
+ dev_err(dev, "device tree node not found\n");
+ return -ENODEV;
+ }
+
+ info = devm_kzalloc(dev, sizeof(struct rockchip_pinctrl), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->dev = dev;
+
+ ctrl = rockchip_pinctrl_get_soc_data(info, pdev);
+ if (!ctrl) {
+ dev_err(dev, "driver data not available\n");
+ return -EINVAL;
+ }
+ info->ctrl = ctrl;
+ g_info = info;
+
+ node = of_parse_phandle(np, "rockchip,grf", 0);
+ if (node) {
+ info->regmap_base = syscon_node_to_regmap(node);
+ if (IS_ERR(info->regmap_base))
+ return PTR_ERR(info->regmap_base);
+ } else {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ rockchip_regmap_config.max_register = resource_size(res) - 4;
+ rockchip_regmap_config.name = "rockchip,pinctrl";
+ info->regmap_base = devm_regmap_init_mmio(&pdev->dev, base,
+ &rockchip_regmap_config);
+
+ /* to check for the old dt-bindings */
+ info->reg_size = resource_size(res);
+
+ /* Honor the old binding, with pull registers as 2nd resource */
+ if (ctrl->type == RK3188 && info->reg_size < 0x200) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ rockchip_regmap_config.max_register =
+ resource_size(res) - 4;
+ rockchip_regmap_config.name = "rockchip,pinctrl-pull";
+ info->regmap_pull = devm_regmap_init_mmio(&pdev->dev,
+ base,
+ &rockchip_regmap_config);
+ }
+ }
+
+ /* try to find the optional reference to the pmu syscon */
+ node = of_parse_phandle(np, "rockchip,pmu", 0);
+ if (node) {
+ info->regmap_pmu = syscon_node_to_regmap(node);
+ if (IS_ERR(info->regmap_pmu))
+ return PTR_ERR(info->regmap_pmu);
+ }
+
+ ret = rockchip_gpiolib_register(pdev, info);
+ if (ret)
+ return ret;
+
+ ret = rockchip_pinctrl_register(pdev, info);
+ if (ret) {
+ rockchip_gpiolib_unregister(pdev, info);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, info);
+ printk("%s:init ok\n",__func__);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int rockchip_pinctrl_suspend(void)
+{
+ struct rockchip_pinctrl *info = g_info;
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ int n;
+ //int value = 0;
+
+ for(n=0; n<ctrl->nr_banks-1; n++)
+ {
+#if 0
+ int i;
+ for(i=0; i<0x60; i=i+4)
+ {
+ value = readl_relaxed(bank->reg_base + i);
+ printk("%s:bank_num=%d,reg[0x%x+0x%x]=0x%x,bank_name=%s\n",__func__,bank->bank_num, bank->reg_base, i, value, bank->name);
+ }
+#endif
+ bank->saved_wakeup = __raw_readl(bank->reg_base + GPIO_INTEN);
+ __raw_writel(bank->suspend_wakeup, bank->reg_base + GPIO_INTEN);
+
+ //if (!bank->suspend_wakeup)
+ //clk_disable_unprepare(bank->clk);
+
+ //if(atomic_read(&info->bank_debug_flag) == (bank->bank_num + 1))
+ //printk("%s:bank_num=%d, suspend_wakeup=0x%x\n"
+ //,__func__, bank->bank_num, bank->suspend_wakeup);
+ bank++;
+ }
+
+
+ return 0;
+}
+
+static void rockchip_pinctrl_resume(void)
+{
+ struct rockchip_pinctrl *info = g_info;
+ struct rockchip_pin_ctrl *ctrl = info->ctrl;
+ struct rockchip_pin_bank *bank = ctrl->pin_banks;
+ int n;
+ u32 isr;
+
+ for(n=0; n<ctrl->nr_banks-1; n++)
+ {
+#if 0
+ int i;
+ for(i=0; i<0x60; i=i+4)
+ {
+ u32 value = readl_relaxed(bank->reg_base + i);
+ printk("%s:bank_num=%d,reg[0x%x+0x%x]=0x%x,bank_name=%s\n",__func__,bank->bank_num, bank->reg_base, i, value, bank->name);
+ }
+#endif
+ //if (!bank->suspend_wakeup)
+ //clk_prepare_enable(bank->clk);
+
+ /* keep enable for resume irq */
+ isr = __raw_readl(bank->reg_base + GPIO_INT_STATUS);
+ __raw_writel(bank->saved_wakeup | (bank->suspend_wakeup & isr)
+ , bank->reg_base + GPIO_INTEN);
+
+ //if(atomic_read(&info->bank_debug_flag) == (bank->bank_num + 1))
+ //printk("%s:bank_num=%d, suspend_wakeup=0x%x\n",__func__
+ //bank->bank_num, bank->saved_wakeup | (bank->suspend_wakeup & isr));
+
+ bank++;
+ }
+
+}
+#endif
+
+static struct rockchip_pin_bank rk2928_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk2928_pin_ctrl = {
+ .pin_banks = rk2928_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk2928_pin_banks),
+ .label = "RK2928-GPIO",
+ .type = RK2928,
+ .grf_mux_offset = 0xa8,
+ .pull_calc_reg = rk2928_calc_pull_reg_and_bit,
+};
+
+static struct rockchip_pin_bank rk3066a_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+ PIN_BANK(4, 32, "gpio4"),
+ PIN_BANK(6, 16, "gpio6"),
+};
+
+static struct rockchip_pin_ctrl rk3066a_pin_ctrl = {
+ .pin_banks = rk3066a_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3066a_pin_banks),
+ .label = "RK3066a-GPIO",
+ .type = RK2928,
+ .grf_mux_offset = 0xa8,
+ .pull_calc_reg = rk2928_calc_pull_reg_and_bit,
+};
+
+static struct rockchip_pin_bank rk3066b_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3066b_pin_ctrl = {
+ .pin_banks = rk3066b_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3066b_pin_banks),
+ .label = "RK3066b-GPIO",
+ .type = RK3066B,
+ .grf_mux_offset = 0x60,
+};
+
+static struct rockchip_pin_bank rk3188_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
+ .pin_banks = rk3188_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3188_pin_banks),
+ .label = "RK3188-GPIO",
+ .type = RK3188,
+ .grf_mux_offset = 0x60,
+ .pull_calc_reg = rk3188_calc_pull_reg_and_bit,
+};
+
+static struct rockchip_pin_bank rk3288_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 24, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", IOMUX_UNROUTED,
+ IOMUX_UNROUTED,
+ IOMUX_UNROUTED,
+ 0
+ ),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, IOMUX_UNROUTED),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, IOMUX_WIDTH_4BIT),
+ PIN_BANK_IOMUX_FLAGS(4, 32, "gpio4", IOMUX_WIDTH_4BIT,
+ IOMUX_WIDTH_4BIT,
+ 0,
+ 0
+ ),
+ PIN_BANK_IOMUX_FLAGS(5, 32, "gpio5", IOMUX_UNROUTED,
+ 0,
+ 0,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK_IOMUX_FLAGS(6, 32, "gpio6", 0, 0, 0, IOMUX_UNROUTED),
+ PIN_BANK_IOMUX_FLAGS(7, 32, "gpio7", 0,
+ 0,
+ IOMUX_WIDTH_4BIT,
+ IOMUX_UNROUTED
+ ),
+ PIN_BANK(8, 16, "gpio8"),
+};
+
+static struct rockchip_pin_ctrl rk3288_pin_ctrl = {
+ .pin_banks = rk3288_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3288_pin_banks),
+ .label = "RK3288-GPIO",
+ .type = RK3288,
+ .grf_mux_offset = 0x0,
+ .pmu_mux_offset = 0x84,
+ .pull_calc_reg = rk3288_calc_pull_reg_and_bit,
+};
+
+static struct rockchip_pin_bank rk3368_pin_banks[] = {
+ PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU,
+ IOMUX_SOURCE_PMU),
+ PIN_BANK_IOMUX_FLAGS(1, 32, "gpio1", 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS(2, 32, "gpio2", 0, 0, 0, 0),
+ PIN_BANK_IOMUX_FLAGS(3, 32, "gpio3", 0, 0, 0, 0),
+};
+
+static struct rockchip_pin_ctrl rk3368_pin_ctrl = {
+ .pin_banks = rk3368_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3368_pin_banks),
+ .label = "RK3368-GPIO",
+ .type = RK3368,
+ .grf_mux_offset = 0x0,
+ .pmu_mux_offset = 0x0,
+ .pull_calc_reg = rk3368_calc_pull_reg_and_bit,
+};
+
+static const struct of_device_id rockchip_pinctrl_dt_match[] = {
+ { .compatible = "rockchip,rk2928-pinctrl",
+ .data = (void *)&rk2928_pin_ctrl },
+ { .compatible = "rockchip,rk3066a-pinctrl",
+ .data = (void *)&rk3066a_pin_ctrl },
+ { .compatible = "rockchip,rk3066b-pinctrl",
+ .data = (void *)&rk3066b_pin_ctrl },
+ { .compatible = "rockchip,rk3188-pinctrl",
+ .data = (void *)&rk3188_pin_ctrl },
+ { .compatible = "rockchip,rk3288-pinctrl",
+ .data = (void *)&rk3288_pin_ctrl },
+ { .compatible = "rockchip,rk3368-pinctrl",
+ .data = (void *)&rk3368_pin_ctrl },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rockchip_pinctrl_dt_match);
+
+static struct platform_driver rockchip_pinctrl_driver = {
+ .probe = rockchip_pinctrl_probe,
+ .driver = {
+ .name = "rockchip-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = rockchip_pinctrl_dt_match,
+ },
+};
+
+#ifdef CONFIG_PM
+static struct syscore_ops rockchip_gpio_syscore_ops = {
+ .suspend = rockchip_pinctrl_suspend,
+ .resume = rockchip_pinctrl_resume,
+};
+#endif
+
+static int __init rockchip_pinctrl_drv_register(void)
+{
+#ifdef CONFIG_PM
+ register_syscore_ops(&rockchip_gpio_syscore_ops);
+#endif
+ return platform_driver_register(&rockchip_pinctrl_driver);
+}
+postcore_initcall(rockchip_pinctrl_drv_register);
+
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("Rockchip pinctrl driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/power/avs/Kconfig b/drivers/power/avs/Kconfig
index 2a1008b61121..7f3d389bd601 100644
--- a/drivers/power/avs/Kconfig
+++ b/drivers/power/avs/Kconfig
@@ -10,3 +10,11 @@ menuconfig POWER_AVS
AVS is also called SmartReflex on OMAP devices.
Say Y here to enable Adaptive Voltage Scaling class support.
+
+config ROCKCHIP_IODOMAIN
+ tristate "Rockchip IO domain support"
+ depends on ARCH_ROCKCHIP && OF
+ help
+ Say y here to enable support io domains on Rockchip SoCs. It is
+ necessary for the io domain setting of the SoC to match the
+ voltage supplied by the regulators.
diff --git a/drivers/power/avs/Makefile b/drivers/power/avs/Makefile
index 0843386a6c19..ba4c7bc69225 100644
--- a/drivers/power/avs/Makefile
+++ b/drivers/power/avs/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_POWER_AVS_OMAP) += smartreflex.o
+obj-$(CONFIG_ROCKCHIP_IODOMAIN) += rockchip-io-domain.o
diff --git a/drivers/power/avs/rockchip-io-domain.c b/drivers/power/avs/rockchip-io-domain.c
new file mode 100755
index 000000000000..ef7967e21869
--- /dev/null
+++ b/drivers/power/avs/rockchip-io-domain.c
@@ -0,0 +1,407 @@
+/*
+ * Rockchip IO Voltage Domain driver
+ *
+ * Copyright 2014 MundoReader S.L.
+ * Copyright 2014 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#define MAX_SUPPLIES 16
+
+/*
+ * The max voltage for 1.8V and 3.3V come from the Rockchip datasheet under
+ * "Recommended Operating Conditions" for "Digital GPIO". When the typical
+ * is 3.3V the max is 3.6V. When the typical is 1.8V the max is 1.98V.
+ *
+ * They are used like this:
+ * - If the voltage on a rail is above the "1.8" voltage (1.98V) we'll tell the
+ * SoC we're at 3.3.
+ * - If the voltage on a rail is above the "3.3" voltage (3.6V) we'll consider
+ * that to be an error.
+ */
+#define MAX_VOLTAGE_1_8 1980000
+#define MAX_VOLTAGE_3_3 3600000
+
+#define RK3288_SOC_CON2 0x24c
+#define RK3288_SOC_CON2_FLASH0 BIT(7)
+#define RK3288_SOC_FLASH_SUPPLY_NUM 2
+
+#define RK3368_GRF_SOC_CON15 0x43c
+#define RK3368_GRF_SOC_CON15_FLASH0 BIT(14)
+#define RK3368_SOC_FLASH_SUPPLY_NUM 2
+
+
+struct rockchip_iodomain;
+
+/**
+ * @supplies: voltage settings matching the register bits.
+ */
+struct rockchip_iodomain_soc_data {
+ int grf_offset;
+ const char *supply_names[MAX_SUPPLIES];
+ void (*init)(struct rockchip_iodomain *iod);
+};
+
+struct rockchip_iodomain_supply {
+ struct rockchip_iodomain *iod;
+ struct regulator *reg;
+ struct notifier_block nb;
+ int idx;
+};
+
+struct rockchip_iodomain {
+ struct device *dev;
+ struct regmap *grf;
+ struct rockchip_iodomain_soc_data *soc_data;
+ struct rockchip_iodomain_supply supplies[MAX_SUPPLIES];
+};
+
+static int rockchip_iodomain_write(struct rockchip_iodomain_supply *supply,
+ int uV)
+{
+ struct rockchip_iodomain *iod = supply->iod;
+ u32 val;
+ int ret;
+
+ /* set value bit */
+ val = (uV > MAX_VOLTAGE_1_8) ? 0 : 1;
+ val <<= supply->idx;
+
+ /* apply hiword-mask */
+ val |= (BIT(supply->idx) << 16);
+
+ ret = regmap_write(iod->grf, iod->soc_data->grf_offset, val);
+ if (ret)
+ dev_err(iod->dev, "Couldn't write to GRF\n");
+
+ return ret;
+}
+
+static int rockchip_iodomain_notify(struct notifier_block *nb,
+ unsigned long event,
+ void *data)
+{
+ struct rockchip_iodomain_supply *supply =
+ container_of(nb, struct rockchip_iodomain_supply, nb);
+ int uV;
+ int ret;
+
+ /*
+ * According to Rockchip it's important to keep the SoC IO domain
+ * higher than (or equal to) the external voltage. That means we need
+ * to change it before external voltage changes happen in the case
+ * of an increase.
+ *
+ * Note that in the "pre" change we pick the max possible voltage that
+ * the regulator might end up at (the client requests a range and we
+ * don't know for certain the exact voltage). Right now we rely on the
+ * slop in MAX_VOLTAGE_1_8 and MAX_VOLTAGE_3_3 to save us if clients
+ * request something like a max of 3.6V when they really want 3.3V.
+ * We could attempt to come up with better rules if this fails.
+ */
+/*
+ if (event & REGULATOR_EVENT_PRE_VOLTAGE_CHANGE) {
+ struct pre_voltage_change_data *pvc_data = data;
+
+ uV = max_t(unsigned long, pvc_data->old_uV, pvc_data->max_uV);
+ } else
+*/
+ if (event & (REGULATOR_EVENT_VOLTAGE_CHANGE)) {// |
+ //REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE)) {
+ uV = (unsigned long)data;
+ } else {
+ return NOTIFY_OK;
+ }
+
+ dev_dbg(supply->iod->dev, "Setting to %d\n", uV);
+
+ if (uV > MAX_VOLTAGE_3_3) {
+ dev_err(supply->iod->dev, "Voltage too high: %d\n", uV);
+
+ //if (event == REGULATOR_EVENT_PRE_VOLTAGE_CHANGE)
+ return NOTIFY_BAD;
+ }
+
+ ret = rockchip_iodomain_write(supply, uV);
+/*
+ if (ret && event == REGULATOR_EVENT_PRE_VOLTAGE_CHANGE)
+ return NOTIFY_BAD;
+*/
+
+ dev_info(supply->iod->dev, "Setting to %d done\n", uV);
+ return NOTIFY_OK;
+}
+
+static void rk3288_iodomain_init(struct rockchip_iodomain *iod)
+{
+ int ret;
+ u32 val;
+
+ /* if no flash supply we should leave things alone */
+ if (!iod->supplies[RK3288_SOC_FLASH_SUPPLY_NUM].reg)
+ return;
+
+ /*
+ * set flash0 iodomain to also use this framework
+ * instead of a special gpio.
+ */
+ val = RK3288_SOC_CON2_FLASH0 | (RK3288_SOC_CON2_FLASH0 << 16);
+ ret = regmap_write(iod->grf, RK3288_SOC_CON2, val);
+ if (ret < 0)
+ dev_warn(iod->dev, "couldn't update flash0 ctrl\n");
+}
+
+static void rk3368_iodomain_init(struct rockchip_iodomain *iod)
+{
+ int ret;
+ u32 val;
+
+ /* if no flash supply we should leave things alone */
+ if (!iod->supplies[RK3368_SOC_FLASH_SUPPLY_NUM].reg)
+ return;
+
+ /*
+ * set flash0 iodomain to also use this framework
+ * instead of a special gpio.
+ */
+ val = RK3368_GRF_SOC_CON15_FLASH0 | (RK3368_GRF_SOC_CON15_FLASH0 << 16);
+ ret = regmap_write(iod->grf, RK3368_GRF_SOC_CON15, val);
+ if (ret < 0)
+ dev_warn(iod->dev, "couldn't update flash0 ctrl\n");
+}
+
+
+/*
+ * On the rk3188 the io-domains are handled by a shared register with the
+ * lower 8 bits being still being continuing drive-strength settings.
+ */
+static const struct rockchip_iodomain_soc_data soc_data_rk3188 = {
+ .grf_offset = 0x104,
+ .supply_names = {
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ "ap0",
+ "ap1",
+ "cif",
+ "flash",
+ "vccio0",
+ "vccio1",
+ "lcdc0",
+ "lcdc1",
+ },
+};
+
+static const struct rockchip_iodomain_soc_data soc_data_rk3288 = {
+ .grf_offset = 0x380,
+ .supply_names = {
+ "lcdc", /* LCDC_VDD */
+ "dvp", /* DVPIO_VDD */
+ "flash0", /* FLASH0_VDD (emmc) */
+ "flash1", /* FLASH1_VDD (sdio1) */
+ "wifi", /* APIO3_VDD (sdio0) */
+ "bb", /* APIO5_VDD */
+ "audio", /* APIO4_VDD */
+ "sdcard", /* SDMMC0_VDD (sdmmc) */
+ "gpio30", /* APIO1_VDD */
+ "gpio1830", /* APIO2_VDD */
+ },
+ .init = rk3288_iodomain_init,
+};
+
+static const struct rockchip_iodomain_soc_data soc_data_rk3368 = {
+ .grf_offset = 0x900,
+ .supply_names = {
+ NULL,
+ "dvp_v18sel", /*DVP IO domain*/
+ "flash0_v18sel", /*FLASH0 IO domain*/
+ "wifi_v18sel", /*WIFI IO domain*/
+ NULL,
+ "audio_v18sel", /*AUDIO IO domain*/
+ "sdcard_v18sel", /*SDCARD IO domain*/
+ "gpio30_v18sel", /*GPIO30 IO domain*/
+ "gpio1830_v18sel", /*GPIO1830 IO domain*/
+ },
+ .init = rk3368_iodomain_init,
+};
+
+
+static const struct of_device_id rockchip_iodomain_match[] = {
+ {
+ .compatible = "rockchip,rk3188-io-voltage-domain",
+ .data = (void *)&soc_data_rk3188
+ },
+ {
+ .compatible = "rockchip,rk3288-io-voltage-domain",
+ .data = (void *)&soc_data_rk3288
+ },
+ {
+ .compatible = "rockchip,rk3368-io-voltage-domain",
+ .data = (void *)&soc_data_rk3368
+ },
+ { /* sentinel */ },
+};
+
+static int rockchip_iodomain_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *match;
+ struct rockchip_iodomain *iod;
+ int i, ret = 0;
+
+ if (!np)
+ return -ENODEV;
+
+ iod = devm_kzalloc(&pdev->dev, sizeof(*iod), GFP_KERNEL);
+ if (!iod)
+ return -ENOMEM;
+
+ iod->dev = &pdev->dev;
+ platform_set_drvdata(pdev, iod);
+
+ match = of_match_node(rockchip_iodomain_match, np);
+ iod->soc_data = (struct rockchip_iodomain_soc_data *)match->data;
+
+ iod->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+ if (IS_ERR(iod->grf)) {
+ dev_err(&pdev->dev, "couldn't find grf regmap\n");
+ return PTR_ERR(iod->grf);
+ }
+
+ for (i = 0; i < MAX_SUPPLIES; i++) {
+ const char *supply_name = iod->soc_data->supply_names[i];
+ struct rockchip_iodomain_supply *supply = &iod->supplies[i];
+ struct regulator *reg;
+ int uV;
+ const char *regulator_name = NULL;
+
+ if (!supply_name)
+ continue;
+
+ of_property_read_string(np, supply_name, ®ulator_name);
+ if (!regulator_name)
+ continue;
+
+ reg = regulator_get(NULL, regulator_name);
+ if (IS_ERR(reg)) {
+ ret = PTR_ERR(reg);
+
+ /* If a supply wasn't specified, that's OK */
+ if (ret == -ENODEV)
+ continue;
+ else if (ret != -EPROBE_DEFER)
+ dev_err(iod->dev, "couldn't get regulator %s\n",
+ supply_name);
+ goto unreg_notify;
+ }
+
+ /* set initial correct value */
+ uV = regulator_get_voltage(reg);
+
+ /* must be a regulator we can get the voltage of */
+ if (uV < 0) {
+ dev_err(iod->dev, "Can't determine voltage: %s\n",
+ supply_name);
+ goto unreg_notify;
+ }
+
+ if (uV > MAX_VOLTAGE_3_3) {
+ dev_crit(iod->dev,
+ "%d uV is too high. May damage SoC!\n",
+ uV);
+ ret = -EINVAL;
+ goto unreg_notify;
+ }
+
+ /* setup our supply */
+ supply->idx = i;
+ supply->iod = iod;
+ supply->reg = reg;
+ supply->nb.notifier_call = rockchip_iodomain_notify;
+
+ ret = rockchip_iodomain_write(supply, uV);
+ if (ret) {
+ supply->reg = NULL;
+ goto unreg_notify;
+ }
+
+ /* register regulator notifier */
+ ret = regulator_register_notifier(reg, &supply->nb);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "regulator notifier request failed\n");
+ supply->reg = NULL;
+ goto unreg_notify;
+ }
+ }
+
+ if (iod->soc_data->init)
+ iod->soc_data->init(iod);
+
+ return 0;
+
+unreg_notify:
+ for (i = MAX_SUPPLIES - 1; i >= 0; i--) {
+ struct rockchip_iodomain_supply *io_supply = &iod->supplies[i];
+
+ if (io_supply->reg)
+ regulator_unregister_notifier(io_supply->reg,
+ &io_supply->nb);
+ }
+
+ return ret;
+}
+
+static int rockchip_iodomain_remove(struct platform_device *pdev)
+{
+ struct rockchip_iodomain *iod = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = MAX_SUPPLIES - 1; i >= 0; i--) {
+ struct rockchip_iodomain_supply *io_supply = &iod->supplies[i];
+
+ if (io_supply->reg)
+ regulator_unregister_notifier(io_supply->reg,
+ &io_supply->nb);
+ }
+
+ return 0;
+}
+
+static struct platform_driver rockchip_iodomain_driver = {
+ .probe = rockchip_iodomain_probe,
+ .remove = rockchip_iodomain_remove,
+ .driver = {
+ .name = "rockchip-iodomain",
+ .of_match_table = rockchip_iodomain_match,
+ },
+};
+
+module_platform_driver(rockchip_iodomain_driver);
+
+MODULE_DESCRIPTION("Rockchip IO-domain driver");
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_AUTHOR("Doug Anderson <dianders@chromium.org>");
+MODULE_LICENSE("GPL v2");