On Tue, Dec 7, 2021 at 4:39 PM Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> wrote: > On 24/11/2021 08:46, Hector Martin wrote: > > This allows idle UART devices to be suspended using the standard > > runtime-PM framework. The logic is modeled after stm32-usart. Guys, have you seen this activity: https://lore.kernel.org/linux-serial/YbGyNW2EQlA%2F+VIg@xxxxxxxxxxx/T/#t? The idea eventually is to bring the serial core to do this for us. Can you test that series and see if it has a use in your case? -- With Best Regards, Andy Shevchenko