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Subject[RFT v2 01/10] pinctrl: samsung: Define suspend and resume callbacks for all banks and SoCs
Date
Suspend and resume callbacks in Exynos/S5Pv210 pin controller drivers,
save and restore state of registers. This operations should be done for
all banks which have external interrupts (as denoted by using
EXYNOS_PIN_BANK_EINTG/EINTW macros).

Add all banks of Exynos5260 and Exynos5420. This is necessary step for
supporting suspend to RAM on these SoCs.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <snawrocki@kernel.org>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
---
drivers/pinctrl/samsung/pinctrl-exynos-arm.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
index d82820fc349a..44c6b753f692 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos-arm.c
@@ -616,16 +616,22 @@ static const struct samsung_pin_ctrl exynos5260_pin_ctrl[] __initconst = {
.nr_banks = ARRAY_SIZE(exynos5260_pin_banks0),
.eint_gpio_init = exynos_eint_gpio_init,
.eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
}, {
/* pin-controller instance 1 data */
.pin_banks = exynos5260_pin_banks1,
.nr_banks = ARRAY_SIZE(exynos5260_pin_banks1),
.eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
}, {
/* pin-controller instance 2 data */
.pin_banks = exynos5260_pin_banks2,
.nr_banks = ARRAY_SIZE(exynos5260_pin_banks2),
.eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
},
};

@@ -842,30 +848,40 @@ static const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = {
.nr_banks = ARRAY_SIZE(exynos5420_pin_banks0),
.eint_gpio_init = exynos_eint_gpio_init,
.eint_wkup_init = exynos_eint_wkup_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
.retention_data = &exynos5420_retention_data,
}, {
/* pin-controller instance 1 data */
.pin_banks = exynos5420_pin_banks1,
.nr_banks = ARRAY_SIZE(exynos5420_pin_banks1),
.eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
.retention_data = &exynos5420_retention_data,
}, {
/* pin-controller instance 2 data */
.pin_banks = exynos5420_pin_banks2,
.nr_banks = ARRAY_SIZE(exynos5420_pin_banks2),
.eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
.retention_data = &exynos5420_retention_data,
}, {
/* pin-controller instance 3 data */
.pin_banks = exynos5420_pin_banks3,
.nr_banks = ARRAY_SIZE(exynos5420_pin_banks3),
.eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
.retention_data = &exynos5420_retention_data,
}, {
/* pin-controller instance 4 data */
.pin_banks = exynos5420_pin_banks4,
.nr_banks = ARRAY_SIZE(exynos5420_pin_banks4),
.eint_gpio_init = exynos_eint_gpio_init,
+ .suspend = exynos_pinctrl_suspend,
+ .resume = exynos_pinctrl_resume,
.retention_data = &exynos4_audio_retention_data,
},
};
--
2.14.1
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