ARM: OMAP2+: craneboard: support the TPS65910 PMU

 This patch supports the TPS65910 PMU function on the AM3517 Craneboard.
 The IRQ pin, SYS_NIRQ is dedicated connection between the AM3517 and
 the TPS65910 PMU.
 To handle the PMU IRQs, mux configuration is required.

 Platform data configuration:
 .IRQ number : SYS_NIRQ (M_IRQ_7)
 .External clock source : external 32KHz clock is connected

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 37646e557d69afd72928557012680ae7fd44c00c..82805de80056b2f87ff01e9516590fd7ad8c9906 100644 (file)
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -20,6 +20,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/mfd/tps65910.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
@@ -41,6 +42,7 @@
 
 #ifdef CONFIG_OMAP_MUX
 static struct omap_board_mux board_mux[] __initdata = {
+       OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
        { .reg_offset = OMAP_MUX_TERMINATOR },
 };
 #endif
@@ -86,6 +88,24 @@ static struct mtd_partition crane_nand_partitions[] = {
        },
 };
 
+static struct tps65910_board tps65910_pdata = {
+       .irq = 7 + OMAP_INTC_START,
+       .en_ck32k_xtal = true,
+};
+
+static struct i2c_board_info __initdata tps65910_board_info[] = {
+       {
+               I2C_BOARD_INFO("tps65910", 0x2d),
+               .platform_data = &tps65910_pdata,
+       },
+};
+
+static void __init am3517_crane_i2c_init(void)
+{
+       omap_register_i2c_bus(1, 2600, tps65910_board_info,
+                       ARRAY_SIZE(tps65910_board_info));
+}
+
 static void __init am3517_crane_init(void)
 {
        int ret;
@@ -96,6 +116,7 @@ static void __init am3517_crane_init(void)
        board_nand_init(crane_nand_partitions,
                        ARRAY_SIZE(crane_nand_partitions), 0,
                        NAND_BUSWIDTH_16, NULL);
+       am3517_crane_i2c_init();
 
        /* Configure GPIO for EHCI port */
        if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) {