From: Erwan Le Ray Date: Thu, 3 Feb 2022 17:16:44 +0000 (+0100) Subject: serial: stm32: enable / disable wake irqs for mcrtl_gpio wakeup sources X-Git-Tag: v6.1-rc5~1690^2~83 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7547d9ab03720e9ef3e300b12c57f380310a6e30;p=platform%2Fkernel%2Flinux-starfive.git serial: stm32: enable / disable wake irqs for mcrtl_gpio wakeup sources 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 Link: https://lore.kernel.org/r/20220203171644.12231-3-erwan.leray@foss.st.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index 9570002d..1b3a611 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -1756,6 +1756,7 @@ 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 @@ -1782,7 +1783,7 @@ 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); }