On 14.03.2016 10:12, Chanwoo Choi wrote:
> This patch adds initial pin configuration using pinctrl subsystem
> to reduce leakage power-consumption of gpio pins in normal state.
> All pins included in this patch are NC (not connected) pin.
>
> Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
> Cc: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> ---
> arch/arm/boot/dts/exynos3250-pinctrl.dtsi | 38 +++++++++++++++++
> arch/arm/boot/dts/exynos3250-rinato.dts | 70 ++++++++++++++++++++++++++++++-
> 2 files changed, 106 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos3250-pinctrl.dtsi b/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
> index 5ab81c39e2c9..ecf79386e891 100644
> --- a/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/exynos3250-pinctrl.dtsi
> @@ -16,11 +16,49 @@
> #define PIN_PULL_DOWN 1
> #define PIN_PULL_UP 3
>
> +#define PIN_DRV_LV1 0
> +#define PIN_DRV_LV2 2
> +#define PIN_DRV_LV3 1
> +#define PIN_DRV_LV4 3
> +
> #define PIN_PDN_OUT0 0
> #define PIN_PDN_OUT1 1
> #define PIN_PDN_INPUT 2
> #define PIN_PDN_PREV 3
>
> +#define PIN_IN(_pin, _pull, _drv) \
> + _pin { \
> + samsung,pins = #_pin; \
> + samsung,pin-function = <0>; \
> + samsung,pin-pud = <PIN_PULL_ ##_pull>; \
> + samsung,pin-drv = <PIN_DRV_ ##_drv>; \
> + }
> +
> +#define PIN_OUT(_pin, _drv) \
> + _pin { \
> + samsung,pins = #_pin; \
> + samsung,pin-function = <1>; \
> + samsung,pin-pud = <0>; \
> + samsung,pin-drv = <PIN_DRV_ ##_drv>; \
> + }
> +
> +#define PIN_OUT_SET(_pin, _val, _drv) \
> + _pin { \
> + samsung,pins = #_pin; \
> + samsung,pin-function = <1>; \
> + samsung,pin-pud = <0>; \
> + samsung,pin-drv = <PIN_DRV_ ##_drv>; \
> + samsung,pin-val = <_val>; \
> + }
> +
> +#define PIN_CFG(_pin, _sel, _pull, _drv) \
> + _pin { \
> + samsung,pins = #_pin; \
> + samsung,pin-function = <_sel>; \
> + samsung,pin-pud = <PIN_PULL_ ##_pull>; \
> + samsung,pin-drv = <PIN_DRV_ ##_drv>; \
> + }
> +
> #define PIN_SLP(_pin, _mode, _pull) \
> _pin { \
> samsung,pins = #_pin; \
> diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
> index 3e64d5dcdd60..1c78a2153776 100644
> --- a/arch/arm/boot/dts/exynos3250-rinato.dts
> +++ b/arch/arm/boot/dts/exynos3250-rinato.dts
> @@ -681,7 +681,21 @@
>
> &pinctrl_0 {
> pinctrl-names = "default";
> - pinctrl-0 = <&sleep0>;
> + pinctrl-0 = <&initial0 &sleep0>;
> +
> + initial0: initial-state {
> + PIN_IN(gpa1-4, DOWN, LV1);
> + PIN_IN(gpa1-5, DOWN, LV1);
> +
> + PIN_IN(gpc0-0, DOWN, LV1);
> + PIN_IN(gpc0-1, DOWN, LV1);
> + PIN_IN(gpc0-2, DOWN, LV1);
> + PIN_IN(gpc0-3, DOWN, LV1);
> + PIN_IN(gpc0-4, DOWN, LV1);
> +
> + PIN_IN(gpd0-0, DOWN, LV1);
> + PIN_IN(gpd0-1, DOWN, LV1);
> + };
>
> sleep0: sleep-state {
> PIN_SLP(gpa0-0, INPUT, DOWN);
> @@ -735,7 +749,59 @@
>
> &pinctrl_1 {
> pinctrl-names = "default";
> - pinctrl-0 = <&sleep1>;
> + pinctrl-0 = <&initial1 &sleep1>;
> +
> + initial1: initial-state {
> + PIN_IN(gpe0-6, DOWN, LV1);
> + PIN_IN(gpe0-7, DOWN, LV1);
> +
> + PIN_IN(gpe1-0, DOWN, LV1);
> + PIN_IN(gpe1-3, DOWN, LV1);
> + PIN_IN(gpe1-4, DOWN, LV1);
> + PIN_IN(gpe1-5, DOWN, LV1);
> + PIN_IN(gpe1-6, DOWN, LV1);
> +
> + PIN_IN(gpk2-0, DOWN, LV1);
> + PIN_IN(gpk2-1, DOWN, LV1);
> + PIN_IN(gpk2-2, DOWN, LV1);
> + PIN_IN(gpk2-3, DOWN, LV1);
> + PIN_IN(gpk2-4, DOWN, LV1);
> + PIN_IN(gpk2-5, DOWN, LV1);
> + PIN_IN(gpk2-6, DOWN, LV1);
> +
> + PIN_IN(gpm0-0, DOWN, LV1);
> + PIN_IN(gpm0-1, DOWN, LV1);
> + PIN_IN(gpm0-2, DOWN, LV1);
> + PIN_IN(gpm0-3, DOWN, LV1);
> + PIN_IN(gpm0-4, DOWN, LV1);
> + PIN_IN(gpm0-5, DOWN, LV1);
> + PIN_IN(gpm0-6, DOWN, LV1);
> + PIN_IN(gpm0-7, DOWN, LV1);
> +
> + PIN_IN(gpm1-0, DOWN, LV1);
> + PIN_IN(gpm1-1, DOWN, LV1);
> + PIN_IN(gpm1-2, DOWN, LV1);
> + PIN_IN(gpm1-3, DOWN, LV1);
> + PIN_IN(gpm1-4, DOWN, LV1);
> + PIN_IN(gpm1-5, DOWN, LV1);
> + PIN_IN(gpm1-6, DOWN, LV1);
A blank line here. Beside that:
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Best regards,
Krzysztof
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