Remove fixed regulators (duplicating what max77686 provides) and
add GPIO control to max77686 regulators. Add of_compatible to
voltage-regulators node.
This gives the system full control over those regulators. Previously
the state of such regulators was a mixture of what max77686 driver set
over I2C and what regulator-fixed set through GPIO.
Removal of 'regulator-always-on' from CAM_ISP_CORE_1.2V (buck9) allows
disabling it when it is not used. Previously this regulator was always
enabled because its enable state is a OR of:
- ENB9 GPIO (turned by regulator-fixed),
- BUCK9EN field in BUCK9CTRL register (max77686 through I2C).
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos4412-trats2.dts | 28 ++++++++--------------------
1 file changed, 8 insertions(+), 20 deletions(-)
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 7a68e0832cd6..ebbd12d1fe9a 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -58,15 +58,6 @@
#address-cells = <1>;
#size-cells = <0>;
- vemmc_reg: regulator-0 {
- compatible = "regulator-fixed";
- regulator-name = "VMEM_VDD_2.8V";
- regulator-min-microvolt = <2800000>;
- regulator-max-microvolt = <2800000>;
- gpio = <&gpk0 2 0>;
- enable-active-high;
- };
-
cam_io_reg: voltage-regulator-1 {
compatible = "regulator-fixed";
regulator-name = "CAM_SENSOR_A";
@@ -94,16 +85,6 @@
enable-active-high;
};
- cam_isp_core_reg: voltage-regulator-4 {
- compatible = "regulator-fixed";
- regulator-name = "CAM_ISP_CORE_1.2V_EN";
- regulator-min-microvolt = <1200000>;
- regulator-max-microvolt = <1200000>;
- gpio = <&gpm0 3 0>;
- enable-active-high;
- regulator-always-on;
- };
-
ps_als_reg: voltage-regulator-5 {
compatible = "regulator-fixed";
regulator-name = "LED_A_3.0V";
@@ -221,6 +202,13 @@
#clock-cells = <1>;
voltage-regulators {
+ compatible = "maxim,max77686-pmic";
+
+ ldo21-gpio = <&gpy2 0 GPIO_ACTIVE_HIGH>;
+ ldo22-gpio = <&gpk0 2 GPIO_ACTIVE_HIGH>;
+ buck8-gpio = <&gpk0 2 GPIO_ACTIVE_HIGH>;
+ buck9-gpio = <&gpm0 3 GPIO_ACTIVE_HIGH>;
+
ldo1_reg: ldo1 {
regulator-compatible = "LDO1";
regulator-name = "VALIVE_1.0V_AP";
@@ -591,7 +579,7 @@
broken-cd;
non-removable;
card-detect-delay = <200>;
- vmmc-supply = <&vemmc_reg>;
+ vmmc-supply = <&ldo22_reg>;
clock-frequency = <400000000>;
samsung,dw-mshc-ciu-div = <0>;
samsung,dw-mshc-sdr-timing = <2 3>;
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
