add pwm voltage regulator to board-rk29-winaccord

diff --git a/arch/arm/mach-rk29/board-rk29-winaccord.c b/arch/arm/mach-rk29/board-rk29-winaccord.c
index 0b2f97c447c9493eb1050e6737b9f7995f2d5329..e9fb59b6e040249696161bcb5fee6b17f8027896 100644 (file)
--- a/arch/arm/mach-rk29/board-rk29-winaccord.c
+++ b/arch/arm/mach-rk29/board-rk29-winaccord.c
@@ -43,6 +43,8 @@
 #include <media/soc_camera.h>                               /* ddl@rock-chips.com : camera support */
 #include <mach/vpu_mem.h>
 
+#include <linux/regulator/rk29-pwm-regulator.h>
+#include <linux/regulator/machine.h>
 
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
@@ -839,6 +841,54 @@ struct rk29_bl_info rk29_bl_info = {
     .io_deinit = rk29_backlight_io_deinit,
 };
 #endif
+/*****************************************************************************************
+* pwm voltage regulator devices
+******************************************************************************************/
+#if defined (CONFIG_RK29_PWM_REGULATOR)
+
+#define REGULATOR_PWM_ID                                       2
+#define REGULATOR_PWM_MUX_NAME                 GPIO2A3_SDMMC0WRITEPRT_PWM2_NAME
+#define REGULATOR_PWM_MUX_MODE                                         GPIO2L_PWM2
+#define REGULATOR_PWM_MUX_MODE_GPIO                            GPIO2L_GPIO2A3
+#define REGULATOR_PWM_GPIO                             RK29_PIN2_PA3
+
+static struct regulator_consumer_supply pwm_consumers[] = {
+       {
+               .supply = "vcore",
+       }
+};
+
+static struct regulator_init_data rk29_pwm_regulator_data = {
+       .constraints = {
+               .name = "PWM2",
+               .min_uV =  950000,
+               .max_uV = 1400000,
+               .apply_uV = 1,
+               .valid_ops_mask = REGULATOR_CHANGE_STATUS | REGULATOR_CHANGE_VOLTAGE,
+       },
+       .num_consumer_supplies = ARRAY_SIZE(pwm_consumers),
+       .consumer_supplies = pwm_consumers,
+};
+
+static struct pwm_platform_data rk29_regulator_pwm_platform_data = {
+       .pwm_id = REGULATOR_PWM_ID,
+       .pwm_gpio = REGULATOR_PWM_GPIO,
+       .pwm_iomux_name = REGULATOR_PWM_MUX_NAME,
+       .pwm_iomux_pwm = REGULATOR_PWM_MUX_MODE,
+       .pwm_iomux_gpio = REGULATOR_PWM_MUX_MODE_GPIO,
+       .init_data  = &rk29_pwm_regulator_data,
+};
+
+static struct platform_device rk29_device_pwm_regulator = {
+       .name = "pwm-voltage-regulator",
+       .id   = -1,
+       .dev  = {
+               .platform_data = &rk29_regulator_pwm_platform_data,
+       },
+};
+
+#endif
+
 /*****************************************************************************************
  * SDMMC devices
 *****************************************************************************************/
@@ -1125,12 +1175,18 @@ static void __init rk29_board_iomux_init(void)
        rk29_mux_api_set(GPIO0A7_MIIMDCLK_NAME, GPIO0L_MII_MDCLK);
        rk29_mux_api_set(GPIO0A6_MIIMD_NAME, GPIO0L_MII_MD);
        #endif
+       #ifdef CONFIG_RK29_PWM_REGULATOR
+       rk29_mux_api_set(REGULATOR_PWM_MUX_NAME,REGULATOR_PWM_MUX_MODE);
+       #endif
 }
 
 static struct platform_device *devices[] __initdata = {
 #ifdef CONFIG_UART1_RK29
        &rk29_device_uart1,
 #endif
+#ifdef CONFIG_RK29_PWM_REGULATOR
+       &rk29_device_pwm_regulator,
+#endif
 #ifdef CONFIG_SPIM0_RK29
     &rk29xx_device_spi0m,
 #endif