Commit 1f513ee3 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski
Browse files

ARM: dts: exynos: Add regulator suspend configuration to Arndale Octa board 



Add the PMIC regulator suspend configuration to Arndale Octa board to
reduce power usage during suspend and keep necessary regulators on.  The
configuration is based on vendor (Insignal) reference kernel and the
board datasheet.  Comparing to vendor kernel, additionally turn off in
suspend all regulators controlled by external pin (LDO3, LDO7, LDO18 and
buck10).

This is purely for hardware description because board does not support
Suspend to RAM and the S2MPS11 driver does not support
"regulator-on-in-suspend" property.

Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
parent d0b737f9

arch/arm/boot/dts/exynos5420-arndale-octa.dts

+80 −0
Original line number Diff line number Diff line
@@ -386,6 +386,10 @@ 
				 * (Linaro for Arndale Octa, v2012.07).

				 */

				regulator-always-on;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			ldo4_reg: LDO4 {
@@ -411,6 +415,10 @@ 
				regulator-name = "PVDD_ANAIP_1V8";

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <1800000>;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			ldo8_reg: LDO8 {
@@ -451,6 +459,10 @@ 
				regulator-name = "PVDD_APIO_MMCOFF_2V8";

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <2800000>;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			ldo14_reg: LDO14 {
@@ -464,12 +476,20 @@ 
				regulator-name = "PVDD_PERI_2V8";

				regulator-min-microvolt = <3300000>;

				regulator-max-microvolt = <3300000>;



				regulator-state-mem {

					regulator-on-in-suspend;

				};

			};



			ldo16_reg: LDO16 {

				regulator-name = "PVDD_PERI_3V3";

				regulator-min-microvolt = <2200000>;

				regulator-max-microvolt = <2200000>;



				regulator-state-mem {

					regulator-on-in-suspend;

				};

			};



			ldo17_reg: LDO17 {
@@ -483,12 +503,28 @@ 
				regulator-name = "PVDD_EMMC_1V8";

				regulator-min-microvolt = <1800000>;

				regulator-max-microvolt = <1800000>;

				/*

				 * Must stay in "off" mode during shutdown for

				 * proper eMMC reset.  The "off" mode is in

				 * fact controlled by LDO18EN.  The eMMC does

				 * not have reset pin connected so the reset

				 * will be triggered by falling edge of

				 * LDO18EN.

				 */



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			ldo19_reg: LDO19 {

				regulator-name = "PVDD_TFLASH_2V8";

				regulator-min-microvolt = <2800000>;

				regulator-max-microvolt = <2800000>;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			ldo20_reg: LDO20 {
@@ -515,12 +551,20 @@ 
				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1100000>;

				regulator-always-on;



				regulator-state-mem {

					regulator-on-in-suspend;

				};

			};



			ldo24_reg: LDO24 {

				regulator-name = "PVDD_CAM1_AVDD_2V8";

				regulator-min-microvolt = <2800000>;

				regulator-max-microvolt = <2800000>;



				regulator-state-mem {

					regulator-on-in-suspend;

				};

			};



			ldo25_reg: LDO25 {
@@ -540,6 +584,10 @@ 
				regulator-name = "PVDD_G3DS_1V0";

				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1100000>;



				regulator-state-mem {

					regulator-on-in-suspend;

				};

			};



			ldo28_reg: LDO28 {
@@ -617,6 +665,10 @@ 
				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1300000>;

				regulator-always-on;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			buck2_reg: BUCK2 {
@@ -624,6 +676,10 @@ 
				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1500000>;

				regulator-always-on;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			buck3_reg: BUCK3 {
@@ -631,12 +687,20 @@ 
				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1400000>;

				regulator-always-on;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			buck4_reg: BUCK4 {

				regulator-name = "PVDD_G3D_1V0";

				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1400000>;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			buck5_reg: BUCK5 {
@@ -651,6 +715,10 @@ 
				regulator-min-microvolt = <800000>;

				regulator-max-microvolt = <1500000>;

				regulator-always-on;



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};



			buck7_reg: BUCK7 {
@@ -678,6 +746,18 @@ 
				regulator-name = "PVDD_EMMCF_2V8";

				regulator-min-microvolt = <2800000>;

				regulator-max-microvolt = <2800000>;

				/*

				 * Must stay in "off" mode during shutdown for

				 * proper eMMC reset.  The "off" mode is in

				 * fact controlled by BUCK10EN.  The eMMC does

				 * not have reset pin connected so the reset

				 * will be triggered by falling edge of

				 * BUCK10EN.

				 */



				regulator-state-mem {

					regulator-off-in-suspend;

				};

			};

		};

	};

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