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Message-id: <1421311295-18960-3-git-send-email-k.kozlowski@samsung.com>
Date: Thu, 15 Jan 2015 09:41:34 +0100
From: Krzysztof Kozlowski <k.kozlowski@...sung.com>
To: Kukjin Kim <kgene@...nel.org>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH 2/3] ARM: dts: exynos4412-trats2: Add suspend configuration for
max77686 regulators
Add suspend to RAM configuration for max77686 regulators. Some LDOs and
bucks are disabled. This reduces energy consumption during S2R,
approximately from 17 mA to 9 mA.
Additionally remove old and not supported bindings:
- regulator-mem-off
- regulator-mem-idle
- regulator-mem-on
The max77686 driver does not parse them and they are not documented
anywere.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Reviewed-by: Chanwoo Choi <cw00.choi@...sung.com>
---
Previously this was part of [1] patchset. There were no changes in this
patch since last version (v6) of that patchset.
[1] https://lkml.org/lkml/2014/10/29/261
---
arch/arm/boot/dts/exynos4412-trats2.dts | 72 +++++++++++++++++++--------------
1 file changed, 42 insertions(+), 30 deletions(-)
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 595ad4ba6977..ef05139506e6 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -227,7 +227,6 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
- regulator-mem-on;
};
ldo2_reg: ldo2 {
@@ -236,7 +235,9 @@
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
- regulator-mem-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo3_reg: ldo3 {
@@ -245,7 +246,6 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
- regulator-mem-on;
};
ldo4_reg: ldo4 {
@@ -254,7 +254,6 @@
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
- regulator-mem-on;
};
ldo5_reg: ldo5 {
@@ -263,7 +262,6 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
- regulator-mem-on;
};
ldo6_reg: ldo6 {
@@ -272,7 +270,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
- regulator-mem-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo7_reg: ldo7 {
@@ -281,7 +281,9 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
- regulator-mem-on;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo8_reg: ldo8 {
@@ -289,7 +291,9 @@
regulator-name = "VMIPI_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo9_reg: ldo9 {
@@ -297,7 +301,6 @@
regulator-name = "CAM_ISP_MIPI_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
- regulator-mem-idle;
};
ldo10_reg: ldo10 {
@@ -305,7 +308,9 @@
regulator-name = "VMIPI_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo11_reg: ldo11 {
@@ -314,7 +319,9 @@
regulator-min-microvolt = <1950000>;
regulator-max-microvolt = <1950000>;
regulator-always-on;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo12_reg: ldo12 {
@@ -322,7 +329,9 @@
regulator-name = "VUOTG_3.0V";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo13_reg: ldo13 {
@@ -330,7 +339,6 @@
regulator-name = "NFC_AVDD_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-idle;
};
ldo14_reg: ldo14 {
@@ -339,7 +347,9 @@
regulator-min-microvolt = <1950000>;
regulator-max-microvolt = <1950000>;
regulator-always-on;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
ldo15_reg: ldo15 {
@@ -347,7 +357,9 @@
regulator-name = "VHSIC_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo16_reg: ldo16 {
@@ -355,7 +367,9 @@
regulator-name = "VHSIC_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
ldo17_reg: ldo17 {
@@ -363,7 +377,6 @@
regulator-name = "CAM_SENSOR_CORE_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
- regulator-mem-idle;
};
ldo18_reg: ldo18 {
@@ -371,7 +384,6 @@
regulator-name = "CAM_ISP_SEN_IO_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-idle;
};
ldo19_reg: ldo19 {
@@ -379,7 +391,6 @@
regulator-name = "VT_CAM_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-idle;
};
ldo20_reg: ldo20 {
@@ -387,7 +398,6 @@
regulator-name = "VDDQ_PRE_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-idle;
};
ldo21_reg: ldo21 {
@@ -395,7 +405,6 @@
regulator-name = "VTF_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
- regulator-mem-idle;
};
ldo22_reg: ldo22 {
@@ -410,7 +419,6 @@
regulator-name = "TSP_AVDD_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- regulator-mem-idle;
};
ldo24_reg: ldo24 {
@@ -418,7 +426,6 @@
regulator-name = "TSP_VDD_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
- regulator-mem-idle;
};
ldo25_reg: ldo25 {
@@ -426,7 +433,6 @@
regulator-name = "LCD_VCC_3.3V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
- regulator-mem-idle;
};
ldo26_reg: ldo26 {
@@ -434,7 +440,6 @@
regulator-name = "MOTOR_VCC_3.0V";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
- regulator-mem-idle;
};
buck1_reg: buck1 {
@@ -444,7 +449,9 @@
regulator-max-microvolt = <1100000>;
regulator-always-on;
regulator-boot-on;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck2_reg: buck2 {
@@ -454,7 +461,9 @@
regulator-max-microvolt = <1500000>;
regulator-always-on;
regulator-boot-on;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
buck3_reg: buck3 {
@@ -464,7 +473,9 @@
regulator-max-microvolt = <1150000>;
regulator-always-on;
regulator-boot-on;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck4_reg: buck4 {
@@ -473,7 +484,9 @@
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <1150000>;
regulator-boot-on;
- regulator-mem-off;
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
buck5_reg: buck5 {
@@ -512,7 +525,6 @@
regulator-name = "CAM_ISP_CORE_1.2V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1200000>;
- regulator-mem-off;
};
};
};
--
1.9.1
--
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