lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date:	Mon, 29 Dec 2014 09:52:20 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Kukjin Kim <kgene@...nel.org>
Cc:	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH] 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 29231b452643..c9b70b6fdaf2 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -225,7 +225,6 @@
 					regulator-min-microvolt = <1000000>;
 					regulator-max-microvolt = <1000000>;
 					regulator-always-on;
-					regulator-mem-on;
 				};
 
 				ldo2_reg: ldo2 {
@@ -234,7 +233,9 @@
 					regulator-min-microvolt = <1200000>;
 					regulator-max-microvolt = <1200000>;
 					regulator-always-on;
-					regulator-mem-on;
+					regulator-state-mem {
+						regulator-on-in-suspend;
+					};
 				};
 
 				ldo3_reg: ldo3 {
@@ -243,7 +244,6 @@
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 					regulator-always-on;
-					regulator-mem-on;
 				};
 
 				ldo4_reg: ldo4 {
@@ -252,7 +252,6 @@
 					regulator-min-microvolt = <2800000>;
 					regulator-max-microvolt = <2800000>;
 					regulator-always-on;
-					regulator-mem-on;
 				};
 
 				ldo5_reg: ldo5 {
@@ -261,7 +260,6 @@
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
 					regulator-always-on;
-					regulator-mem-on;
 				};
 
 				ldo6_reg: ldo6 {
@@ -270,7 +268,9 @@
 					regulator-min-microvolt = <1000000>;
 					regulator-max-microvolt = <1000000>;
 					regulator-always-on;
-					regulator-mem-on;
+					regulator-state-mem {
+						regulator-on-in-suspend;
+					};
 				};
 
 				ldo7_reg: ldo7 {
@@ -279,7 +279,9 @@
 					regulator-min-microvolt = <1000000>;
 					regulator-max-microvolt = <1000000>;
 					regulator-always-on;
-					regulator-mem-on;
+					regulator-state-mem {
+						regulator-on-in-suspend;
+					};
 				};
 
 				ldo8_reg: ldo8 {
@@ -287,7 +289,9 @@
 					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 {
@@ -295,7 +299,6 @@
 					regulator-name = "CAM_ISP_MIPI_1.2V";
 					regulator-min-microvolt = <1200000>;
 					regulator-max-microvolt = <1200000>;
-					regulator-mem-idle;
 				};
 
 				ldo10_reg: ldo10 {
@@ -303,7 +306,9 @@
 					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 {
@@ -312,7 +317,9 @@
 					regulator-min-microvolt = <1950000>;
 					regulator-max-microvolt = <1950000>;
 					regulator-always-on;
-					regulator-mem-off;
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
 				};
 
 				ldo12_reg: ldo12 {
@@ -320,7 +327,9 @@
 					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 {
@@ -328,7 +337,6 @@
 					regulator-name = "NFC_AVDD_1.8V";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
-					regulator-mem-idle;
 				};
 
 				ldo14_reg: ldo14 {
@@ -337,7 +345,9 @@
 					regulator-min-microvolt = <1950000>;
 					regulator-max-microvolt = <1950000>;
 					regulator-always-on;
-					regulator-mem-off;
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
 				};
 
 				ldo15_reg: ldo15 {
@@ -345,7 +355,9 @@
 					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 {
@@ -353,7 +365,9 @@
 					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 {
@@ -361,7 +375,6 @@
 					regulator-name = "CAM_SENSOR_CORE_1.2V";
 					regulator-min-microvolt = <1200000>;
 					regulator-max-microvolt = <1200000>;
-					regulator-mem-idle;
 				};
 
 				ldo18_reg: ldo18 {
@@ -369,7 +382,6 @@
 					regulator-name = "CAM_ISP_SEN_IO_1.8V";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
-					regulator-mem-idle;
 				};
 
 				ldo19_reg: ldo19 {
@@ -377,7 +389,6 @@
 					regulator-name = "VT_CAM_1.8V";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
-					regulator-mem-idle;
 				};
 
 				ldo20_reg: ldo20 {
@@ -385,7 +396,6 @@
 					regulator-name = "VDDQ_PRE_1.8V";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
-					regulator-mem-idle;
 				};
 
 				ldo21_reg: ldo21 {
@@ -393,7 +403,6 @@
 					regulator-name = "VTF_2.8V";
 					regulator-min-microvolt = <2800000>;
 					regulator-max-microvolt = <2800000>;
-					regulator-mem-idle;
 				};
 
 				ldo22_reg: ldo22 {
@@ -408,7 +417,6 @@
 					regulator-name = "TSP_AVDD_3.3V";
 					regulator-min-microvolt = <3300000>;
 					regulator-max-microvolt = <3300000>;
-					regulator-mem-idle;
 				};
 
 				ldo24_reg: ldo24 {
@@ -416,7 +424,6 @@
 					regulator-name = "TSP_VDD_1.8V";
 					regulator-min-microvolt = <1800000>;
 					regulator-max-microvolt = <1800000>;
-					regulator-mem-idle;
 				};
 
 				ldo25_reg: ldo25 {
@@ -424,7 +431,6 @@
 					regulator-name = "LCD_VCC_3.3V";
 					regulator-min-microvolt = <2800000>;
 					regulator-max-microvolt = <2800000>;
-					regulator-mem-idle;
 				};
 
 				ldo26_reg: ldo26 {
@@ -432,7 +438,6 @@
 					regulator-name = "MOTOR_VCC_3.0V";
 					regulator-min-microvolt = <3000000>;
 					regulator-max-microvolt = <3000000>;
-					regulator-mem-idle;
 				};
 
 				buck1_reg: buck1 {
@@ -442,7 +447,9 @@
 					regulator-max-microvolt = <1100000>;
 					regulator-always-on;
 					regulator-boot-on;
-					regulator-mem-off;
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
 				};
 
 				buck2_reg: buck2 {
@@ -452,7 +459,9 @@
 					regulator-max-microvolt = <1500000>;
 					regulator-always-on;
 					regulator-boot-on;
-					regulator-mem-off;
+					regulator-state-mem {
+						regulator-on-in-suspend;
+					};
 				};
 
 				buck3_reg: buck3 {
@@ -462,7 +471,9 @@
 					regulator-max-microvolt = <1150000>;
 					regulator-always-on;
 					regulator-boot-on;
-					regulator-mem-off;
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
 				};
 
 				buck4_reg: buck4 {
@@ -471,7 +482,9 @@
 					regulator-min-microvolt = <850000>;
 					regulator-max-microvolt = <1150000>;
 					regulator-boot-on;
-					regulator-mem-off;
+					regulator-state-mem {
+						regulator-off-in-suspend;
+					};
 				};
 
 				buck5_reg: buck5 {
@@ -510,7 +523,6 @@
 					regulator-name = "CAM_ISP_CORE_1.2V";
 					regulator-min-microvolt = <1000000>;
 					regulator-max-microvolt = <1200000>;
-					regulator-mem-off;
 				};
 			};
 		};
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists