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mfd: stm32: Enable regmap fast_io for stm32-lptimer 

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>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Benjamin Gaignard 2020-06-03 14:54:37 +02:00 committed by Lee Jones
parent e0bcc58d87
commit 45d93065c8
1 changed files with 1 additions and 0 deletions
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drivers/mfd/stm32-lptimer.c
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@ -17,6 +17,7 @@ static const struct regmap_config stm32_lptimer_regmap_cfg = {
.val_bits = 32, .val_bits = 32,
.reg_stride = sizeof(u32), .reg_stride = sizeof(u32),
.max_register = STM32_LPTIM_MAX_REGISTER, .max_register = STM32_LPTIM_MAX_REGISTER,
.fast_io = true,
}; };
static int stm32_lptimer_detect_encoder(struct stm32_lptimer *ddata) static int stm32_lptimer_detect_encoder(struct stm32_lptimer *ddata)