lkml.org 
[lkml]   [2020]   [Mar]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer
Date
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>
---
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
\
 
 \ /
  Last update: 2020-03-31 10:33    [W:0.049 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site