Hi Chris,
The subject above should reflect the pinctrl settings, something like:
"ARM: dts: rockchip: add suspend settings for rk3288-evb-rk808"
Same for the description:
Add suspend-voltages and necessary pin-states for suspend on
rk3288-evb-rk808 boards. global_pwroff would be pulled 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.
Am Samstag, 15. November 2014, 19:45:10 schrieb Chris Zhong:
> 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@xxxxxxxxxxxxxx>
>
> ---
>
> 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>;
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