From: Erwan Le Ray <erwan.leray@foss.st.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Gerald Baeza <gerald.baeza@st.com>,
Erwan Le Ray <erwan.leray@foss.st.com>,
Valentin Caron <valentin.caron@foss.st.com>,
<linux-serial@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 2/2] serial: stm32: enable / disable wake irqs for mcrtl_gpio wakeup sources
Date: Thu, 3 Feb 2022 18:16:44 +0100 [thread overview]
Message-ID: <20220203171644.12231-3-erwan.leray@foss.st.com> (raw)
In-Reply-To: <20220203171644.12231-1-erwan.leray@foss.st.com>
Enable mctrl_gpio wake_irq if device_may_wakeup when usart is suspended,
and disable mctrl_gpios wake_irq if device_may_wakeup when usart is
resumed.
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 3244e7f6818c..df86c53e62a7 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1708,6 +1708,7 @@ static int __maybe_unused stm32_usart_serial_en_wakeup(struct uart_port *port,
if (enable) {
stm32_usart_set_bits(port, ofs->cr1, USART_CR1_UESM);
stm32_usart_set_bits(port, ofs->cr3, USART_CR3_WUFIE);
+ mctrl_gpio_enable_irq_wake(stm32_port->gpios);
/*
* When DMA is used for reception, it must be disabled before
@@ -1734,7 +1735,7 @@ static int __maybe_unused stm32_usart_serial_en_wakeup(struct uart_port *port,
if (ret)
return ret;
}
-
+ mctrl_gpio_disable_irq_wake(stm32_port->gpios);
stm32_usart_clr_bits(port, ofs->cr1, USART_CR1_UESM);
stm32_usart_clr_bits(port, ofs->cr3, USART_CR3_WUFIE);
}
--
2.17.1
prev parent reply other threads:[~2022-02-03 17:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-03 17:16 [PATCH 0/2] STM32 enable gpio irqs as wakeup irqs for uart port Erwan Le Ray
2022-02-03 17:16 ` [PATCH 1/2] serial: mctrl_gpio: add a new API to enable / disable wake_irq Erwan Le Ray
[not found] ` <CAHp75VfxGj=3mKvjcRpQjyXBCM0szsidHVuJGdAL8yP5SmdBzw@mail.gmail.com>
2022-02-04 15:41 ` Erwan LE RAY
2022-02-08 10:07 ` Greg Kroah-Hartman
2022-02-03 17:16 ` Erwan Le Ray [this message]
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