diff options
| author | Fabien Dessenne <fabien.dessenne@foss.st.com> | 2022-04-22 17:36:08 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-05-02 00:25:58 +0300 |
| commit | c954531bc5d84fc13e035204750c3761c5fc93b0 (patch) | |
| tree | 19e45e32a09b914a73de0e5c8fdc06c2e8ab68fe /drivers/pinctrl/stm32/pinctrl-stm32.h | |
| parent | f930b69a8944ab3f018e2a175ddbd16e71348df9 (diff) | |
| download | linux-c954531bc5d84fc13e035204750c3761c5fc93b0.tar.xz | |
pinctrl: stm32: improve bank clocks management
Instead of enabling/disabling the clock at each IO configuration update,
just keep the clock enabled from the probe.
This makes things simpler and more efficient (e.g. the time required to
toggle an output IO is drastically decreased) without significantly
increasing the power consumption.
Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20220422143608.226580-1-fabien.dessenne@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/stm32/pinctrl-stm32.h')
| -rw-r--r-- | drivers/pinctrl/stm32/pinctrl-stm32.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.h b/drivers/pinctrl/stm32/pinctrl-stm32.h index b0882d120765..b9584039cdf5 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.h +++ b/drivers/pinctrl/stm32/pinctrl-stm32.h @@ -65,6 +65,7 @@ struct stm32_gpio_bank; int stm32_pctl_probe(struct platform_device *pdev); void stm32_pmx_get_mode(struct stm32_gpio_bank *bank, int pin, u32 *mode, u32 *alt); +int stm32_pinctrl_suspend(struct device *dev); int stm32_pinctrl_resume(struct device *dev); #endif /* __PINCTRL_STM32_H */ |