ARM: EXYNOS: support Exynos4210-bus Devfreq driver on Nuri board

Support varying voltages:
- GPIODVS for Buck2 is removed.
- Voltage ragne for Buck2 is widen.

Support Buck2 regulator for Exynos4210-bus devfreq driver:
- Added device name for buck2 regulator
- Added exynos4210-busfreq platform device fro Nuri board.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 92e3cf0101c4..3b9f3ff5539c 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -436,7 +436,7 @@ static struct regulator_consumer_supply __initdata max8997_buck1_[] = {
         REGULATOR_SUPPLY("vdd_arm", NULL), /* CPUFREQ */
 };
 static struct regulator_consumer_supply __initdata max8997_buck2_[] = {
-        REGULATOR_SUPPLY("vdd_int", NULL), /* CPUFREQ */
+        REGULATOR_SUPPLY("vdd_int", "exynos4210-busfreq.0"), /* CPUFREQ */
 };
 static struct regulator_consumer_supply __initdata max8997_buck3_[] = {
         REGULATOR_SUPPLY("vdd", "mali_dev.0"), /* G3D of Exynos 4 */
@@ -749,7 +749,7 @@ static struct regulator_init_data __initdata max8997_buck2_data = {
         .constraints    = {
                 .name           = "VINT_1.1V_C210",
                 .min_uV         = 900000,
-                .max_uV         = 1100000,
+                .max_uV         = 1200000,
                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
                 .always_on      = 1,
                 .state_mem      = {
@@ -964,7 +964,6 @@ static struct max8997_platform_data __initdata nuri_max8997_pdata = {
         .regulators             = nuri_max8997_regulators,
 
         .buck125_gpios = { EXYNOS4_GPX0(5), EXYNOS4_GPX0(6), EXYNOS4_GPL0(0) },
-        .buck2_gpiodvs = true,
 
         .buck1_voltage[0] = 1350000, /* 1.35V */
         .buck1_voltage[1] = 1300000, /* 1.3V */
@@ -1301,6 +1300,11 @@ static struct s3c2410_platform_i2c nuri_i2c0_platdata __initdata = {
         .sda_delay      = 200,
 };
 
+/* DEVFREQ controlling memory/bus */
+static struct platform_device exynos4_bus_devfreq = {
+        .name                   = "exynos4210-busfreq",
+};
+
 static struct platform_device *nuri_devices[] __initdata = {
         /* Samsung Platform Devices */
         &s3c_device_i2c5, /* PMIC should initialize first */
@@ -1342,6 +1346,7 @@ static struct platform_device *nuri_devices[] __initdata = {
         &cam_vt_cam15_fixed_rdev,
         &cam_vdda_fixed_rdev,
         &cam_8m_12v_fixed_rdev,
+        &exynos4_bus_devfreq,
 };
 
 static void __init nuri_map_io(void)