ARM: OMAP3: cm-t35: Add regulator for ads7846 touchscreen

ads7846 driver fails to find the regulator supply and
as a result the touchscreen is not working.
Fix this by adding a regulator supply for the ads7846 driver.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
[tony@atomide.com: updated subject]
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index 510b6a2ff0fa..a4dbbe7adb73 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -343,6 +343,10 @@ static struct regulator_consumer_supply cm_t35_vdvi_supply[] = {
         REGULATOR_SUPPLY("vdvi", "omapdss"),
 };
 
+static struct regulator_consumer_supply cm_t35_vio_supplies[] = {
+        REGULATOR_SUPPLY("vcc", "spi1.0"),
+};
+
 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 static struct regulator_init_data cm_t35_vmmc1 = {
         .constraints = {
@@ -373,6 +377,19 @@ static struct regulator_init_data cm_t35_vsim = {
         .consumer_supplies      = cm_t35_vsim_supply,
 };
 
+static struct regulator_init_data cm_t35_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,
+        },
+        .num_consumer_supplies  = ARRAY_SIZE(cm_t35_vio_supplies),
+        .consumer_supplies      = cm_t35_vio_supplies,
+};
+
 static uint32_t cm_t35_keymap[] = {
         KEY(0, 0, KEY_A),       KEY(0, 1, KEY_B),       KEY(0, 2, KEY_LEFT),
         KEY(1, 0, KEY_UP),      KEY(1, 1, KEY_ENTER),   KEY(1, 2, KEY_DOWN),
@@ -456,6 +473,7 @@ static struct twl4030_platform_data cm_t35_twldata = {
         .gpio           = &cm_t35_gpio_data,
         .vmmc1          = &cm_t35_vmmc1,
         .vsim           = &cm_t35_vsim,
+        .vio            = &cm_t35_vio,
 };
 
 static void __init cm_t35_init_i2c(void)