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Date: Sat, 15 Nov 2014 19:45:10 +0800
From: Chris Zhong <zyw@...k-chips.com>
To: heiko@...ech.de, dianders@...omium.org
Cc: mturquette@...aro.org,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Russell King <linux@....linux.org.uk>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Linus Walleij <linus.walleij@...aro.org>, khilman@...nel.org,
linux-rockchip@...ts.infradead.org,
Chris Zhong <zyw@...k-chips.com>,
Kumar Gala <galak@...eaurora.org>,
linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v8 4/4] ARM: dts: add suspend voltage setting for RK808
global_pwroff would be pull to high when RK3288 entering suspend,
this pin is a sleep signal for RK808, so RK808 could goto sleep
mode, and some regulators would be disable.
Signed-off-by: Chris Zhong <zyw@...k-chips.com>
---
Changes in v8:
- keep all except cpu&tp power rail on during suspend
- add regulator-on-in-suspend before set suspend voltage
- add a reference of ddrio_pwroff and ddr0_retention
Changes in v7:
- add regulator-state-mem sub node for suspend
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None
arch/arm/boot/dts/rk3288-evb-rk808.dts | 55 +++++++++++++++++++++++++++++++++-
arch/arm/boot/dts/rk3288-evb.dtsi | 12 ++++++++
2 files changed, 66 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/rk3288-evb-rk808.dts b/arch/arm/boot/dts/rk3288-evb-rk808.dts
index d8c775e6..e4a8884 100644
--- a/arch/arm/boot/dts/rk3288-evb-rk808.dts
+++ b/arch/arm/boot/dts/rk3288-evb-rk808.dts
@@ -31,7 +31,7 @@
interrupt-parent = <&gpio0>;
interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
- pinctrl-0 = <&pmic_int>;
+ pinctrl-0 = <&pmic_int &global_pwroff>;
rockchip,system-power-controller;
wakeup-source;
#clock-cells = <1>;
@@ -50,6 +50,9 @@
regulator-min-microvolt = <750000>;
regulator-max-microvolt = <1350000>;
regulator-name = "vdd_arm";
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_gpu: DCDC_REG2 {
@@ -58,12 +61,20 @@
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <1250000>;
regulator-name = "vdd_gpu";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
};
vcc_ddr: DCDC_REG3 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc_ddr";
+ regulator-suspend-mem-enabled;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
vcc_io: DCDC_REG4 {
@@ -72,6 +83,10 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc_io";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
};
vccio_pmu: LDO_REG1 {
@@ -80,6 +95,10 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_pmu";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
};
vcc_tp: LDO_REG2 {
@@ -88,6 +107,9 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcc_tp";
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
};
vdd_10: LDO_REG3 {
@@ -96,6 +118,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-name = "vdd_10";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
};
vcc18_lcd: LDO_REG4 {
@@ -104,6 +130,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcc18_lcd";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
};
vccio_sd: LDO_REG5 {
@@ -112,6 +142,10 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_sd";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
};
vdd10_lcd: LDO_REG6 {
@@ -120,6 +154,10 @@
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-name = "vdd10_lcd";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1000000>;
+ };
};
vcc_18: LDO_REG7 {
@@ -128,6 +166,11 @@
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-name = "vcc_18";
+ regulator-suspend-mem-microvolt = <1800000>;
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
};
vcca_codec: LDO_REG8 {
@@ -136,18 +179,28 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vcca_codec";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
};
vcc_wl: SWITCH_REG1 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc_wl";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
vcc_lcd: SWITCH_REG2 {
regulator-always-on;
regulator-boot-on;
regulator-name = "vcc_lcd";
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
};
};
};
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index cb83cea..8d90fab 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -149,6 +149,18 @@
};
&pinctrl {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <
+ /* Common for sleep and wake, but no owners */
+ &ddr0_retention
+ &ddrio_pwroff
+ >;
+ pinctrl-1 = <
+ /* Common for sleep and wake, but no owners */
+ &ddr0_retention
+ &ddrio_pwroff
+ >;
+
backlight {
bl_en: bl-en {
rockchip,pins = <7 2 RK_FUNC_GPIO &pcfg_pull_none>;
--
1.9.1
--
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