rockchip,pins = <VIRTUAL_PIN_FOR_LCDC1_VCC>;
rockchip,voltage = <VALUE_VOL_DEFAULT>;
};
+
+ ap0_vcc_18:ap0-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_AP0_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ ap1_vcc_18:ap1-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_AP1_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ cif_vcc_18:cif-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_CIF_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ flash_vcc_18:flash-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_FLASH_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ vccio0_vcc_18:vccio0-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_VCCIO0_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ vccio1_vcc_18:vccio1-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_VCCIO1_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ lcdc0_vcc_18:lcdc0-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_LCDC0_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ lcdc1_vcc_18:lcdc1-vcc-18 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_LCDC1_VCC>;
+ rockchip,voltage = <VALUE_VOL_1V8>;
+ };
+
+ ap0_vcc_33:ap0-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_AP0_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ ap1_vcc_33:ap1-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_AP1_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ cif_vcc_33:cif-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_CIF_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ flash_vcc_33:flash-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_FLASH_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ vccio0_vcc_33:vccio0-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_VCCIO0_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ vccio1_vcc_33:vccio1-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_VCCIO1_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ lcdc0_vcc_33:lcdc0-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_LCDC0_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
+ lcdc1_vcc_33:lcdc1-vcc-33 {
+ rockchip,pins = <VIRTUAL_PIN_FOR_LCDC1_VCC>;
+ rockchip,voltage = <VALUE_VOL_3V3>;
+ };
+
};
#include "lcd-b101ew05.dtsi"
#include "rk3188-mmc.dtsi"
+
/ {
memory {
device_type = "memory";
};
dcdc4_reg: regulator@3 {
- regulator-name= "act_dcdc4";
- regulator-min-microvolt = <3300000>;
+ regulator-name= "vccio";
+ regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};
rk808_dcdc4_reg: regulator@3 {
- regulator-name= "rk_dcdc4";
- regulator-min-microvolt = <3300000>;
+ regulator-name= "vccio";
+ regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
#include "skeleton.dtsi"
#include "rk3188-pinctrl.dtsi"
#include <dt-bindings/rkfb/rk_fb.h>
+#include "rk3188_io_vol_domain.dtsi"
/ {
--- /dev/null
+
+ / {
+
+ vccio{
+ compatible = "rockchip,io_vol_domain";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default", "1.8V", "3.3V";
+ pinctrl-0 = <&ap1_vcc &vccio0_vcc &vccio1_vcc &lcdc1_vcc>;
+ pinctrl-1 = <&ap1_vcc_18 &vccio0_vcc_18 &vccio1_vcc_18 &lcdc1_vcc_18>;
+ pinctrl-2 = <&ap1_vcc_33 &vccio0_vcc_33 &vccio1_vcc_33 &lcdc1_vcc_33>;
+
+ regulator_name{
+ regulator-name= "vccio";
+ };
+ };
+ vccio_wl{
+ compatible = "rockchip,io_vol_domain";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default", "1.8V", "3.3V";
+ pinctrl-0 = <&ap0_vcc>;
+ pinctrl-1 = <&ap0_vcc_18>;
+ pinctrl-2 = <&ap0_vcc_33>;
+
+ regulator_name{
+ regulator-name= "vccio_wl";
+ };
+ };
+ vcc18_cif{
+ compatible = "rockchip,io_vol_domain";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default", "1.8V", "3.3V";
+ pinctrl-0 = <&cif_vcc>;
+ pinctrl-1 = <&cif_vcc_18>;
+ pinctrl-2 = <&cif_vcc_33>;
+
+ regulator_name{
+ regulator-name= "vcc18_cif";
+ };
+ };
+ vcc_flash{
+ compatible = "rockchip,io_vol_domain";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default", "1.8V", "3.3V";
+ pinctrl-0 = <&flash_vcc>;
+ pinctrl-1 = <&flash_vcc_18>;
+ pinctrl-2 = <&flash_vcc_33>;
+
+ regulator_name{
+ regulator-name= "vcc_flash";
+ };
+ };
+ vcc_lcd{
+ compatible = "rockchip,io_vol_domain";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default", "1.8V", "3.3V";
+ pinctrl-0 = <&lcdc0_vcc>;
+ pinctrl-1 = <&lcdc0_vcc_18>;
+ pinctrl-2 = <&lcdc0_vcc_33>;
+
+ regulator_name{
+ regulator-name= "vcc_lcd";
+ };
+ };
+
+};
+
obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
obj-$(CONFIG_REGULATOR_ACT8846) += act8846.o
+obj-$(CONFIG_ARCH_ROCKCHIP) += rk_io_vol_domain.o
+
ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
--- /dev/null
+
+
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/regulator/driver.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/regulator/rk_io_vol_domain.h>
+
+struct io_domain_port *g_uap;
+
+int io_domain_regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
+{
+ int old_voltage,ret =0;
+
+ old_voltage = io_domain_regulator_get_voltage(regulator);
+ if (IS_ERR(g_uap->pins_3v3) ||IS_ERR(g_uap->pins_1v8) ){
+ printk("IO_DOMAIN:ERROR:The io vol domin is not exit. %s\n",__func__);
+ }
+
+ if (min_uV >= old_voltage){
+ if( min_uV > IO_VOL_DOMAIN_3V3){
+ pinctrl_select_state(g_uap->pctl, g_uap->pins_3v3);
+ IO_DOMAIN_DBG("IO_DOMAIN:set io domain 3.3v. %s \n",__func__);
+ }
+ else if (min_uV > IO_VOL_DOMAIN_1V8){
+ pinctrl_select_state(g_uap->pctl, g_uap->pins_1v8);
+ IO_DOMAIN_DBG("IO_DOMAIN:set io domain 1.8v. %s \n",__func__);
+ }
+ ret = regulator_set_voltage(regulator,min_uV,max_uV);
+ }
+ else if (min_uV < old_voltage){
+ ret = regulator_set_voltage(regulator,min_uV,max_uV);
+ if( min_uV > IO_VOL_DOMAIN_3V3){
+ pinctrl_select_state(g_uap->pctl, g_uap->pins_3v3);
+ IO_DOMAIN_DBG("IO_DOMAIN:set io domain 3.3v. %s \n",__func__);
+ }
+ else if (min_uV > IO_VOL_DOMAIN_1V8){
+ pinctrl_select_state(g_uap->pctl, g_uap->pins_1v8);
+ IO_DOMAIN_DBG("IO_DOMAIN:set io domain 1.8v. %s \n",__func__);
+ }
+ }
+
+ return ret;
+
+}
+
+
+#if defined(CONFIG_PM)
+static int rk_io_vol_domain_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ return 0;
+}
+
+static int rk_io_vol_domain_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+#else
+#define rk_io_vol_domain_suspend NULL
+#define rk_io_vol_domain_resume NULL
+#endif
+
+static int rk_io_vol_domain_probe(struct platform_device *pdev)
+{
+ struct io_domain_port *uap;
+ struct vd_node *vd;
+ struct device_node *io_domain_node,*pd_dev_node ;
+ struct regulator *vol_regulator;
+ struct io_domain_device *io_vol_dev = NULL;
+ int vol=0,ret =0;
+
+ io_vol_dev = devm_kzalloc(&pdev->dev, sizeof(struct io_domain_device), GFP_KERNEL);
+ if (!io_vol_dev) {
+ dev_err(&pdev->dev, "no memory for state\n");
+ return -ENOMEM;
+ }
+ platform_set_drvdata(pdev, io_vol_dev);
+ io_vol_dev->dev = &pdev->dev;
+
+ uap = devm_kzalloc(&pdev->dev, sizeof(struct io_domain_port),
+ GFP_KERNEL);
+ if (uap == NULL) {
+ printk("uap is not set %s,line=%d\n", __func__,__LINE__);
+
+ }
+ uap->pctl = devm_pinctrl_get(io_vol_dev->dev);
+ uap->pins_default = pinctrl_lookup_state(uap->pctl,"default");
+ uap->pins_1v8 = pinctrl_lookup_state(uap->pctl, "1.8V");
+ uap->pins_3v3 = pinctrl_lookup_state(uap->pctl,"3.3V");
+ g_uap = uap;
+
+ io_domain_node = of_node_get(pdev->dev.of_node);
+ if (!io_domain_node) {
+ printk("could not find rk_io_vol_domain-node\n");
+ return -ENOMEM ;
+ }
+
+ for_each_available_child_of_node(io_domain_node,pd_dev_node) {
+ vd = kzalloc(sizeof(struct vd_node), GFP_KERNEL);
+ if (!vd)
+ return -ENOMEM;
+
+ vd->name = pd_dev_node->name;
+ pd_dev_node->name = of_get_property(pd_dev_node, "regulator-name", NULL);
+ if (pd_dev_node->name== NULL) {
+ printk("%s vd(%s) pd_dev_node->name(%s) get regulator_name err, ret:%d\n",
+ __func__,vd->name , pd_dev_node->name,ret);
+ kfree(vd);
+ continue;
+ }
+ vol_regulator = regulator_get(NULL,pd_dev_node->name);
+ if (IS_ERR(vol_regulator)){
+ pinctrl_select_state(uap->pctl, uap->pins_default);
+ IO_DOMAIN_DBG("IO_DOMAIN:ERROR:The io vol domin is not exit,set it by defult. %s %s\n",__func__,pd_dev_node->name);
+ continue;
+ }
+ else{
+ vol = regulator_get_voltage(vol_regulator);
+ if (vol > IO_VOL_DOMAIN_3V3){
+ pinctrl_select_state(uap->pctl, uap->pins_3v3);
+ IO_DOMAIN_DBG("IO_DOMAIN:set io domain 3.3v. %s %s = %d\n",__func__,pd_dev_node->name,vol);
+ }
+ else if (vol > IO_VOL_DOMAIN_1V8){
+ pinctrl_select_state(uap->pctl, uap->pins_1v8);
+ IO_DOMAIN_DBG("IO_DOMAIN:set io domain 1.8v. %s %s = %d\n",__func__,pd_dev_node->name,vol);
+ }
+ else{
+ pinctrl_select_state(uap->pctl, uap->pins_default);
+ IO_DOMAIN_DBG("IO_DOMAIN:ERROR:The io vol domin is not exit,set it by defult. %s %s\n",__func__,pd_dev_node->name);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int rk_io_vol_domain_remove(struct platform_device *pdev)
+{
+
+ return 0;
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id rk_io_vol_domain_dt_ids[] = {
+ {.compatible = "rockchip,io_vol_domain", .data = NULL, },
+ {}
+};
+#endif
+
+static struct platform_driver rk_io_vol_domain_driver = {
+ .probe = rk_io_vol_domain_probe,
+ .remove = rk_io_vol_domain_remove,
+ .driver = {
+ .name = "rk_io_vol_domain",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(rk_io_vol_domain_dt_ids),
+ },
+ .suspend = rk_io_vol_domain_suspend,
+ .resume = rk_io_vol_domain_resume,
+};
+
+static int __init rk_io_vol_domain_module_init(void)
+{
+ return platform_driver_register(&rk_io_vol_domain_driver);
+}
+
+static void __exit rk_io_vol_domain_module_exit(void)
+{
+ platform_driver_unregister(&rk_io_vol_domain_driver);
+}
+
+fs_initcall(rk_io_vol_domain_module_init);
+module_exit(rk_io_vol_domain_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("rockchip");
+MODULE_DESCRIPTION("rk io domain setting");
+
+
--- /dev/null
+/*
+ *
+ * Copyright (C) 2014 ROCKCHIP, 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/device.h>
+
+#if 0
+#define IO_DOMAIN_DBG(fmt, args...) printk( "IO_DOMAIN_DBG:\t"fmt, ##args)
+#else
+#define IO_DOMAIN_DBG(fmt, args...) {while(0);}
+#endif
+
+#define io_domain_regulator_get(dev,id) regulator_get((dev),(id))
+#define io_domain_regulator_put(regu) regulator_put((regu))
+#define io_domain_regulator_get_voltage(regu) regulator_get_voltage((regu))
+
+int io_domain_regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
+
+#define IO_VOL_DOMAIN_3V3 2800000
+#define IO_VOL_DOMAIN_1V8 1500000
+
+struct vd_node {
+ const char *name;
+ const char *regulator_name;
+ struct regulator *regulator;
+ struct list_head node;
+};
+struct io_domain_port {
+ struct pinctrl *pctl;
+ struct pinctrl_state *pins_default;
+ struct pinctrl_state *pins_1v8;
+ struct pinctrl_state *pins_3v3;
+};
+
+struct io_domain_device{
+ struct device *dev;
+ struct device_node *of_node;
+
+};
+
projects / firefly-linux-kernel-4.4.55.git / commitdiff