This patch add sleep mode pin configuration using pinctrl subsystem
to reduce leakage power-consumption of gpio pin in sleep state.
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Acked-by: Kyungmin Park <Kyungmin Park@xxxxxxxxxxx>
---
arch/arm/boot/dts/exynos3250-pinctrl.dtsi | 16 ++++
arch/arm/boot/dts/exynos3250-rinato.dts | 154 ++++++++++++++++++++++++++++++
2 files changed, 170 insertions(+)
diff --git a/arch/arm/boot/dts/exynos3250-pinctrl.dtsi b/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
index 47b92c1..5ab81c3 100644
--- a/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
@@ -12,6 +12,22 @@
* published by the Free Software Foundation.
*/
+#define PIN_PULL_NONE 0
+#define PIN_PULL_DOWN 1
+#define PIN_PULL_UP 3
+
+#define PIN_PDN_OUT0 0
+#define PIN_PDN_OUT1 1
+#define PIN_PDN_INPUT 2
+#define PIN_PDN_PREV 3
+
+#define PIN_SLP(_pin, _mode, _pull) \
+ _pin { \
+ samsung,pins = #_pin; \
+ samsung,pin-con-pdn = <PIN_PDN_ ##_mode>; \
+ samsung,pin-pud-pdn = <PIN_PULL_ ##_pull>; \
+ }
+
&pinctrl_0 {
gpa0: gpa0 {
gpio-controller;
diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index f23b8d2..bc4d63e 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -439,3 +439,157 @@
&xusbxti {
clock-frequency = <24000000>;
};
+
+&pinctrl_0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sleep0>;
+
+ sleep0: sleep-state {
+ PIN_SLP(gpa0-0, INPUT, DOWN);
+ PIN_SLP(gpa0-1, INPUT, DOWN);
+ PIN_SLP(gpa0-2, INPUT, DOWN);
+ PIN_SLP(gpa0-3, INPUT, DOWN);
+ PIN_SLP(gpa0-4, INPUT, DOWN);
+ PIN_SLP(gpa0-5, INPUT, DOWN);
+ PIN_SLP(gpa0-6, INPUT, DOWN);
+ PIN_SLP(gpa0-7, INPUT, DOWN);
+
+ PIN_SLP(gpa1-0, INPUT, DOWN);
+ PIN_SLP(gpa1-1, INPUT, DOWN);
+ PIN_SLP(gpa1-2, INPUT, DOWN);
+ PIN_SLP(gpa1-3, INPUT, DOWN);
+ PIN_SLP(gpa1-4, INPUT, DOWN);
+ PIN_SLP(gpa1-5, INPUT, DOWN);
+
+ PIN_SLP(gpb-0, PREV, NONE);
+ PIN_SLP(gpb-1, PREV, NONE);
+ PIN_SLP(gpb-2, PREV, NONE);
+ PIN_SLP(gpb-3, PREV, NONE);
+ PIN_SLP(gpb-4, INPUT, DOWN);
+ PIN_SLP(gpb-5, INPUT, DOWN);
+ PIN_SLP(gpb-6, INPUT, DOWN);
+ PIN_SLP(gpb-7, INPUT, DOWN);
+
+ PIN_SLP(gpc0-0, INPUT, DOWN);
+ PIN_SLP(gpc0-1, INPUT, DOWN);
+ PIN_SLP(gpc0-2, INPUT, DOWN);
+ PIN_SLP(gpc0-3, INPUT, DOWN);
+ PIN_SLP(gpc0-4, INPUT, DOWN);
+
+ PIN_SLP(gpc1-0, INPUT, DOWN);
+ PIN_SLP(gpc1-1, INPUT, DOWN);
+ PIN_SLP(gpc1-2, INPUT, DOWN);
+ PIN_SLP(gpc1-3, INPUT, DOWN);
+ PIN_SLP(gpc1-4, INPUT, DOWN);
+
+ PIN_SLP(gpd0-0, INPUT, DOWN);
+ PIN_SLP(gpd0-1, INPUT, DOWN);
+ PIN_SLP(gpd0-2, INPUT, NONE);
+ PIN_SLP(gpd0-3, INPUT, NONE);
+
+ PIN_SLP(gpd1-0, INPUT, NONE);
+ PIN_SLP(gpd1-1, INPUT, NONE);
+ PIN_SLP(gpd1-2, INPUT, NONE);
+ PIN_SLP(gpd1-3, INPUT, NONE);
+ };
+};
+
+&pinctrl_1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sleep1>;
+
+ sleep1: sleep-state {
+ PIN_SLP(gpe0-0, PREV, NONE);
+ PIN_SLP(gpe0-1, PREV, NONE);
+ PIN_SLP(gpe0-2, INPUT, DOWN);
+ PIN_SLP(gpe0-3, INPUT, DOWN);
+ PIN_SLP(gpe0-4, INPUT, DOWN);
+ PIN_SLP(gpe0-5, INPUT, DOWN);
+ PIN_SLP(gpe0-6, INPUT, DOWN);
+ PIN_SLP(gpe0-7, INPUT, DOWN);
+
+ PIN_SLP(gpe1-0, INPUT, DOWN);
+ PIN_SLP(gpe1-1, PREV, NONE);
+ PIN_SLP(gpe1-2, INPUT, DOWN);
+ PIN_SLP(gpe1-3, INPUT, DOWN);
+ PIN_SLP(gpe1-4, INPUT, DOWN);
+ PIN_SLP(gpe1-5, INPUT, DOWN);
+ PIN_SLP(gpe1-6, INPUT, DOWN);
+ PIN_SLP(gpe1-7, INPUT, NONE);
+
+ PIN_SLP(gpe2-0, INPUT, NONE);
+ PIN_SLP(gpe2-1, INPUT, NONE);
+ PIN_SLP(gpe2-2, INPUT, NONE);
+
+ PIN_SLP(gpk0-0, INPUT, DOWN);
+ PIN_SLP(gpk0-1, INPUT, DOWN);
+ PIN_SLP(gpk0-2, OUT0, NONE);
+ PIN_SLP(gpk0-3, INPUT, DOWN);
+ PIN_SLP(gpk0-4, INPUT, DOWN);
+ PIN_SLP(gpk0-5, INPUT, DOWN);
+ PIN_SLP(gpk0-6, INPUT, DOWN);
+ PIN_SLP(gpk0-7, INPUT, DOWN);
+
+ PIN_SLP(gpk1-0, INPUT, DOWN);
+ PIN_SLP(gpk1-1, INPUT, DOWN);
+ PIN_SLP(gpk1-2, INPUT, DOWN);
+ PIN_SLP(gpk1-3, INPUT, DOWN);
+ PIN_SLP(gpk1-4, INPUT, DOWN);
+ PIN_SLP(gpk1-5, INPUT, DOWN);
+ PIN_SLP(gpk1-6, INPUT, DOWN);
+
+ PIN_SLP(gpk2-0, INPUT, DOWN);
+ PIN_SLP(gpk2-1, INPUT, DOWN);
+ PIN_SLP(gpk2-2, INPUT, DOWN);
+ PIN_SLP(gpk2-3, INPUT, DOWN);
+ PIN_SLP(gpk2-4, INPUT, DOWN);
+ PIN_SLP(gpk2-5, INPUT, DOWN);
+ PIN_SLP(gpk2-6, INPUT, DOWN);
+
+ PIN_SLP(gpl0-0, INPUT, DOWN);
+ PIN_SLP(gpl0-1, INPUT, DOWN);
+ PIN_SLP(gpl0-2, INPUT, DOWN);
+ PIN_SLP(gpl0-3, INPUT, DOWN);
+
+ PIN_SLP(gpm0-0, INPUT, DOWN);
+ PIN_SLP(gpm0-1, INPUT, DOWN);
+ PIN_SLP(gpm0-2, INPUT, DOWN);
+ PIN_SLP(gpm0-3, INPUT, DOWN);
+ PIN_SLP(gpm0-4, INPUT, DOWN);
+ PIN_SLP(gpm0-5, INPUT, DOWN);
+ PIN_SLP(gpm0-6, INPUT, DOWN);
+ PIN_SLP(gpm0-7, INPUT, DOWN);
+
+ PIN_SLP(gpm1-0, INPUT, DOWN);
+ PIN_SLP(gpm1-1, INPUT, DOWN);
+ PIN_SLP(gpm1-2, INPUT, DOWN);
+ PIN_SLP(gpm1-3, INPUT, DOWN);
+ PIN_SLP(gpm1-4, INPUT, DOWN);
+ PIN_SLP(gpm1-5, INPUT, DOWN);
+ PIN_SLP(gpm1-6, INPUT, DOWN);
+
+ PIN_SLP(gpm2-0, INPUT, DOWN);
+ PIN_SLP(gpm2-1, INPUT, DOWN);
+ PIN_SLP(gpm2-2, INPUT, DOWN);
+ PIN_SLP(gpm2-3, INPUT, DOWN);
+ PIN_SLP(gpm2-4, INPUT, DOWN);
+
+ PIN_SLP(gpm3-0, INPUT, DOWN);
+ PIN_SLP(gpm3-1, INPUT, DOWN);
+ PIN_SLP(gpm3-2, INPUT, DOWN);
+ PIN_SLP(gpm3-3, INPUT, DOWN);
+ PIN_SLP(gpm3-4, INPUT, DOWN);
+ PIN_SLP(gpm3-5, INPUT, DOWN);
+ PIN_SLP(gpm3-6, INPUT, DOWN);
+ PIN_SLP(gpm3-7, INPUT, DOWN);
+
+ PIN_SLP(gpm4-0, INPUT, DOWN);
+ PIN_SLP(gpm4-1, INPUT, DOWN);
+ PIN_SLP(gpm4-2, INPUT, DOWN);
+ PIN_SLP(gpm4-3, INPUT, DOWN);
+ PIN_SLP(gpm4-4, INPUT, DOWN);
+ PIN_SLP(gpm4-5, INPUT, DOWN);
+ PIN_SLP(gpm4-6, INPUT, DOWN);
+ PIN_SLP(gpm4-7, INPUT, DOWN);
+ };
+};
--
1.8.0
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