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 v5 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Date: Tue, 31 Mar 2020 10:31:44 +0200 [thread overview] Message-ID: <20200331083146.10462-5-benjamin.gaignard@st.com> (raw) In-Reply-To: <20200331083146.10462-1-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 v5 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Date: Tue, 31 Mar 2020 10:31:44 +0200 [thread overview] Message-ID: <20200331083146.10462-5-benjamin.gaignard@st.com> (raw) In-Reply-To: <20200331083146.10462-1-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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-03-31 8:32 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-31 8:31 [PATCH v5 0/6] clockevent: add low power STM32 timer Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard 2020-03-31 8:31 ` [PATCH v5 1/6] dt-bindings: mfd: Document STM32 low power timer bindings Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard 2020-03-31 16:49 ` Rob Herring 2020-03-31 16:49 ` Rob Herring 2020-03-31 8:31 ` [PATCH v5 2/6] ARM: dts: stm32: Add timer subnodes on stm32mp15 SoCs Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard 2020-03-31 8:31 ` [PATCH v5 3/6] mfd: stm32: Add defines to be used for clkevent purpose Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard [this message] 2020-03-31 8:31 ` [PATCH v5 4/6] mfd: stm32: enable regmap fast_io for stm32-lptimer Benjamin Gaignard 2020-03-31 8:31 ` [PATCH v5 5/6] clocksource: Add Low Power STM32 timers driver Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard 2020-03-31 8:31 ` [PATCH v5 6/6] ARM: mach-stm32: select low power timer for STM32MP157 Benjamin Gaignard 2020-03-31 8:31 ` Benjamin Gaignard
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