[PATCH] ARM: S3C64XX: Hook up GPIO initiated DVS on Cragganmore

[Mark Brown]

Allow us to ramp VDDARM quickly by using a GPIO to signal a voltage change
instead of doing a register write.

Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
 arch/arm/mach-s3c64xx/mach-crag6410.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index d59afa1..2005d5f 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -376,6 +376,12 @@ static struct pca953x_platform_data crag6410_pca_data = {
 	.irq_base	= 0,
 };
 
+/* VDDARM is controlled by DVS1 connected to GPK(0) */
+static struct wm831x_buckv_pdata vddarm_pdata = {
+	.dvs_control_src = 1,
+	.dvs_gpio = S3C64XX_GPK(0),
+};
+
 static struct regulator_consumer_supply vddarm_consumers[] __initdata = {
 	REGULATOR_SUPPLY("vddarm", NULL),
 };
@@ -391,6 +397,7 @@ static struct regulator_init_data vddarm __initdata = {
 	.num_consumer_supplies = ARRAY_SIZE(vddarm_consumers),
 	.consumer_supplies = vddarm_consumers,
 	.supply_regulator = "WALLVDD",
+	.driver_data = &vddarm_pdata,
 };
 
 static struct regulator_init_data vddint __initdata = {
@@ -526,6 +533,8 @@ static struct wm831x_pdata crag_pmic_pdata __initdata = {
 	.backup = &banff_backup_pdata,
 
 	.gpio_defaults = {
+		/* GPIO5: DVS1_REQ - CMOS, DBVDD, active high */
+		[4] = WM831X_GPN_DIR | WM831X_GPN_POL | WM831X_GPN_ENA | 0x8,
 		/* GPIO11: Touchscreen data - CMOS, DBVDD, active high*/
 		[10] = WM831X_GPN_POL | WM831X_GPN_ENA | 0x6,
 		/* GPIO12: Touchscreen pen down - CMOS, DBVDD, active high*/
-- 
1.7.5.4