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authorChanwoo Choi <cw00.choi@samsung.com>2014-11-07 02:10:13 +0300
committerKukjin Kim <kgene.kim@samsung.com>2014-11-07 02:10:13 +0300
commit18073d6e47f24a18c9309a14c2b8b10275afd3a0 (patch)
treed0dde66304db4c938d71bace89e50ebf7d522715 /arch/arm/boot/dts/exynos3250-pinctrl.dtsi
parentfaaf348ef468389b1ee4cfe91bcea1c22fe2d9b2 (diff)
downloadlinux-18073d6e47f24a18c9309a14c2b8b10275afd3a0.tar.xz
ARM: dts: Add sleep mode pin configuration for exynos3250-rinato
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@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/boot/dts/exynos3250-pinctrl.dtsi')
-rw-r--r--arch/arm/boot/dts/exynos3250-pinctrl.dtsi16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/exynos3250-pinctrl.dtsi b/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
index 47b92c150f4e..5ab81c39e2c9 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;