pinctrl: sprd: Add CM4 sleep mode support (e543b3f5) · Commits · 戴 / test

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 <bruce.chen@unisoc.com> Signed-off-by:

Baolin Wang <baolin.wang@linaro.org> Link: https://lore.kernel.org/r/8ae52263b0625c416461821c457e6789b67170b6.1571228451.git.baolin.wang@linaro.org Signed-off-by:

Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/sprd/pinctrl-sprd.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -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;

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