From e543b3f5bb1d7dc39c2628e2932c625670913436 Mon Sep 17 00:00:00 2001 From: Bruce Chen Date: Wed, 16 Oct 2019 20:23:39 +0800 Subject: pinctrl: sprd: Add CM4 sleep mode support For the new Spreadtrum pin controller, it expands 6bits to describe the pin sleep mode with adding one CM4_SLEEP mode, which means the pin sleep related configuration will be loaded automatically by hardware when the CM4 system goes into deep sleep mode. Signed-off-by: Bruce Chen Signed-off-by: Baolin Wang Link: https://lore.kernel.org/r/8ae52263b0625c416461821c457e6789b67170b6.1571228451.git.baolin.wang@linaro.org Signed-off-by: Linus Walleij --- drivers/pinctrl/sprd/pinctrl-sprd.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/pinctrl') diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.c b/drivers/pinctrl/sprd/pinctrl-sprd.c index 8869843d34e3..157712ab05a8 100644 --- a/drivers/pinctrl/sprd/pinctrl-sprd.c +++ b/drivers/pinctrl/sprd/pinctrl-sprd.c @@ -41,7 +41,8 @@ #define PUBCP_SLEEP_MODE BIT(14) #define TGLDSP_SLEEP_MODE BIT(15) #define AGDSP_SLEEP_MODE BIT(16) -#define SLEEP_MODE_MASK GENMASK(3, 0) +#define CM4_SLEEP_MODE BIT(17) +#define SLEEP_MODE_MASK GENMASK(5, 0) #define SLEEP_MODE_SHIFT 13 #define SLEEP_INPUT BIT(1) @@ -81,6 +82,7 @@ enum pin_sleep_mode { PUBCP_SLEEP = BIT(1), TGLDSP_SLEEP = BIT(2), AGDSP_SLEEP = BIT(3), + CM4_SLEEP = BIT(4), }; enum pin_func_sel { @@ -616,6 +618,8 @@ static int sprd_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin_id, val |= TGLDSP_SLEEP_MODE; if (arg & AGDSP_SLEEP) val |= AGDSP_SLEEP_MODE; + if (arg & CM4_SLEEP) + val |= CM4_SLEEP_MODE; mask = SLEEP_MODE_MASK; shift = SLEEP_MODE_SHIFT; -- cgit v1.2.3-59-g8ed1b