From faf9a3eaa1226bea07c8637e993f063fb128b615 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 4 Feb 2015 07:43:54 +0900 Subject: [PATCH] ARM: dts: Switch max77686 regulators to GPIO control for exynos4412-trats2 Remove fixed regulators (duplicating what max77686 provides) and add GPIO enable control to max77686 regulators. 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 always on by regulator-fixed), - BUCK9EN field in BUCK9CTRL register (off by max77686 through I2C). Signed-off-by: Krzysztof Kozlowski Signed-off-by: Kukjin Kim --- arch/arm/boot/dts/exynos4412-trats2.dts | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts index 7ea8b7dce0cb..8072d9002945 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"; @@ -405,6 +386,7 @@ regulator-name = "VTF_2.8V"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + maxim,ena-gpios = <&gpy2 0 GPIO_ACTIVE_HIGH>; }; ldo22_reg: ldo22 { @@ -412,6 +394,7 @@ regulator-name = "VMEM_VDD_2.8V"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + maxim,ena-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>; }; ldo23_reg: ldo23 { @@ -518,6 +501,7 @@ regulator-name = "VMEM_VDDF_3.0V"; regulator-min-microvolt = <2850000>; regulator-max-microvolt = <2850000>; + maxim,ena-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>; }; buck9_reg: buck9 { @@ -525,6 +509,7 @@ regulator-name = "CAM_ISP_CORE_1.2V"; regulator-min-microvolt = <1000000>; regulator-max-microvolt = <1200000>; + maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>; }; }; }; @@ -587,7 +572,7 @@ 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>; -- 2.34.1