OMAP3EVM: Add vio regulator supply required for ads7846 TSC driver

Add vio regulator supply, needed for ads7846 touchscreen controller
driver.

Tested on OMAP3 (ES3.1 Si) RevG version of EVM.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
index 80c9f8a7d054..bbdf3ad299c8 100644
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ b/arch/arm/mach-omap2/board-omap3evm.c
@@ -583,6 +583,25 @@ static struct regulator_init_data omap3_evm_vpll2 = {
         .consumer_supplies      = &omap3_evm_vpll2_supply,
 };
 
+/* ads7846 on SPI */
+static struct regulator_consumer_supply omap3evm_vio_supply =
+        REGULATOR_SUPPLY("vcc", "spi1.0");
+
+/* VIO for ads7846 */
+static struct regulator_init_data omap3evm_vio = {
+        .constraints = {
+                .min_uV                 = 1800000,
+                .max_uV                 = 1800000,
+                .apply_uV               = true,
+                .valid_modes_mask       = REGULATOR_MODE_NORMAL
+                                        | REGULATOR_MODE_STANDBY,
+                .valid_ops_mask         = REGULATOR_CHANGE_MODE
+                                        | REGULATOR_CHANGE_STATUS,
+        },
+        .num_consumer_supplies  = 1,
+        .consumer_supplies      = &omap3evm_vio_supply,
+};
+
 #ifdef CONFIG_WL12XX_PLATFORM_DATA
 
 #define OMAP3EVM_WLAN_PMENA_GPIO        (150)
@@ -639,6 +658,7 @@ static struct twl4030_platform_data omap3evm_twldata = {
         .codec          = &omap3evm_codec_data,
         .vdac           = &omap3_evm_vdac,
         .vpll2          = &omap3_evm_vpll2,
+        .vio            = &omap3evm_vio,
 };
 
 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {