Messages in this thread Patch in this message | | | From | Benjamin Gaignard <> | Subject | [PATCH v7 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer | Date | Mon, 20 Apr 2020 14:16:18 +0200 |
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Because stm32-lptimer need to write in registers in interrupt context enable regmap fast_io to use a spin_lock to protect registers access rather than a mutex.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Acked-by: Lee Jones <lee.jones@linaro.org> --- drivers/mfd/stm32-lptimer.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/mfd/stm32-lptimer.c b/drivers/mfd/stm32-lptimer.c index a00f99f36559..746e51a17cc8 100644 --- a/drivers/mfd/stm32-lptimer.c +++ b/drivers/mfd/stm32-lptimer.c @@ -17,6 +17,7 @@ static const struct regmap_config stm32_lptimer_regmap_cfg = { .val_bits = 32, .reg_stride = sizeof(u32), .max_register = STM32_LPTIM_MAX_REGISTER, + .fast_io = true, }; static int stm32_lptimer_detect_encoder(struct stm32_lptimer *ddata) -- 2.15.0
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