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Message-ID: <20200420121620.2099-5-benjamin.gaignard@st.com>
Date: Mon, 20 Apr 2020 14:16:18 +0200
From: Benjamin Gaignard <benjamin.gaignard@...com>
To: <fabrice.gasnier@...com>, <lee.jones@...aro.org>,
<robh+dt@...nel.org>, <mark.rutland@....com>,
<mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>,
<daniel.lezcano@...aro.org>, <tglx@...utronix.de>
CC: <devicetree@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v7 4/6] 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@...com>
Acked-by: Lee Jones <lee.jones@...aro.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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