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From: Benjamin Gaignard <benjamin.gaignard@st.com>
To: <fabrice.gasnier@st.com>, <lee.jones@linaro.org>,
	<robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<mcoquelin.stm32@gmail.com>, <alexandre.torgue@st.com>,
	<daniel.lezcano@linaro.org>, <tglx@linutronix.de>
Cc: <devicetree@vger.kernel.org>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Benjamin Gaignard <benjamin.gaignard@st.com>
Subject: [PATCH v6 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer
Date: Wed, 1 Apr 2020 10:39:07 +0200	[thread overview]
Message-ID: <20200401083909.18886-5-benjamin.gaignard@st.com> (raw)
In-Reply-To: <20200401083909.18886-1-benjamin.gaignard@st.com>

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


WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Gaignard <benjamin.gaignard@st.com>
To: <fabrice.gasnier@st.com>, <lee.jones@linaro.org>,
	<robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<mcoquelin.stm32@gmail.com>, <alexandre.torgue@st.com>,
	<daniel.lezcano@linaro.org>, <tglx@linutronix.de>
Cc: Benjamin Gaignard <benjamin.gaignard@st.com>,
	devicetree@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v6 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer
Date: Wed, 1 Apr 2020 10:39:07 +0200	[thread overview]
Message-ID: <20200401083909.18886-5-benjamin.gaignard@st.com> (raw)
In-Reply-To: <20200401083909.18886-1-benjamin.gaignard@st.com>

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


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  parent reply	other threads:[~2020-04-01  8:39 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-01  8:39 [PATCH v6 0/6] clockevent: add low power STM32 timer Benjamin Gaignard
2020-04-01  8:39 ` Benjamin Gaignard
2020-04-01  8:39 ` [PATCH v6 1/6] dt-bindings: mfd: Document STM32 low power timer bindings Benjamin Gaignard
2020-04-01  8:39   ` Benjamin Gaignard
2020-04-01  8:51   ` Fabrice Gasnier
2020-04-01  8:51     ` Fabrice Gasnier
2020-04-16  6:35   ` Lee Jones
2020-04-16  6:35     ` Lee Jones
2020-04-01  8:39 ` [PATCH v6 2/6] ARM: dts: stm32: Add timer subnodes on stm32mp15 SoCs Benjamin Gaignard
2020-04-01  8:39   ` Benjamin Gaignard
2020-04-01  8:39 ` [PATCH v6 3/6] mfd: stm32: Add defines to be used for clkevent purpose Benjamin Gaignard
2020-04-01  8:39   ` Benjamin Gaignard
2020-04-01  8:52   ` Fabrice Gasnier
2020-04-01  8:52     ` Fabrice Gasnier
2020-04-01  8:39 ` Benjamin Gaignard [this message]
2020-04-01  8:39   ` [PATCH v6 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Benjamin Gaignard
2020-04-01  8:52   ` Fabrice Gasnier
2020-04-01  8:52     ` Fabrice Gasnier
2020-04-16  7:03   ` Lee Jones
2020-04-16  7:03     ` Lee Jones
2020-04-01  8:39 ` [PATCH v6 5/6] clocksource: Add Low Power STM32 timers driver Benjamin Gaignard
2020-04-01  8:39   ` Benjamin Gaignard
2020-04-01  8:39 ` [PATCH v6 6/6] ARM: mach-stm32: select low power timer for STM32MP157 Benjamin Gaignard
2020-04-01  8:39   ` Benjamin Gaignard
2020-04-16  7:04 ` [PATCH v6 0/6] clockevent: add low power STM32 timer Lee Jones
2020-04-16  7:04   ` Lee Jones

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