From: Wolfram Sang <wsa@the-dreams.de>
To: Alain Volmat <alain.volmat@st.com>
Cc: robh+dt@kernel.org, mark.rutland@arm.com,
pierre-yves.mordret@st.com, mcoquelin.stm32@gmail.com,
alexandre.torgue@st.com, linux-i2c@vger.kernel.org,
devicetree@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, fabrice.gasnier@st.com
Subject: Re: [PATCH 5/6] i2c: i2c-stm32f7: allow controller to be wakeup-source
Date: Thu, 30 Jan 2020 09:39:27 +0100 [thread overview]
Message-ID: <20200130083927.GH2208@ninjato> (raw)
In-Reply-To: <1578317314-17197-6-git-send-email-alain.volmat@st.com>
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On Mon, Jan 06, 2020 at 02:28:33PM +0100, Alain Volmat wrote:
> Allow the i2c-stm32f7 controller to become a wakeup-source
> of the system. In such case, when a slave is registered to the
> I2C controller, receiving a I2C message targeting that registered
> slave address wakes up the suspended system.
>
> In order to be able to wake-up, the I2C controller DT node
> must have the property wakeup-source defined and a slave
> must be registered.
>
> Signed-off-by: Alain Volmat <alain.volmat@st.com>
Applied to for-next, thanks!
> +static void stm32f7_i2c_enable_wakeup(struct stm32f7_i2c_dev *i2c_dev,
> + bool enable)
> +{
> + void __iomem *base = i2c_dev->base;
> + u32 mask = STM32F7_I2C_CR1_WUPEN;
...
I wondered why we can't move this more up to avoid the forward
declaration?
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next prev parent reply other threads:[~2020-01-30 8:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-06 13:28 [PATCH 0/6] i2c-stm32f7: support suspend/resume & wakeup Alain Volmat
2020-01-06 13:28 ` [PATCH 1/6] ARM: dts: stm32: add i2c4 sleep pinctrl on stm32mp15xx-dkx Alain Volmat
2020-01-06 13:28 ` [PATCH 2/6] ARM: dts: stm32: add i2c2/i2c5 sleep pinctrl on stm32mp157c-ev1 Alain Volmat
2020-01-06 13:28 ` [PATCH 3/6] ARM: dts: stm32: add i2c4 sleep pinctrl on stm32mp157c-ed1 Alain Volmat
2020-01-06 13:28 ` [PATCH 4/6] i2c: i2c-stm32f7: add PM_SLEEP suspend/resume support Alain Volmat
2020-01-15 9:13 ` Pierre Yves MORDRET
2020-01-30 8:38 ` Wolfram Sang
2020-01-06 13:28 ` [PATCH 5/6] i2c: i2c-stm32f7: allow controller to be wakeup-source Alain Volmat
2020-01-15 9:13 ` Pierre Yves MORDRET
2020-01-30 8:39 ` Wolfram Sang [this message]
2020-01-31 6:56 ` Wolfram Sang
2020-01-06 13:28 ` [PATCH 6/6] ARM: dts: stm32: add wakeup-source in all I2C nodes of stm32mp157c Alain Volmat
2020-03-13 12:49 ` [PATCH 0/6] i2c-stm32f7: support suspend/resume & wakeup Alexandre Torgue
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