On Thu, Dec 30, 2021 at 11:22 AM Yu Tu [off-list ref] wrote:
[...]

        val = readl(port->membase + AML_UART_CONTROL);
-       val &= ~AML_UART_RX_EN;
+       val &= ~(AML_UART_RX_EN | AML_UART_TX_EN);
        val &= ~(AML_UART_RX_INT_EN | AML_UART_TX_INT_EN);
        writel(val, port->membase + AML_UART_CONTROL);

This looks fine to me but I think it would be good to Cc the author of
commit 855ddcab352c15 ("ARM: meson: serial: only disable tx irq on
stop")
The meson_uart driver which Carlo added eight years ago did clear
AML_UART_TX_EN here, but it was changed with the commit I mentioned
above.


Best regards,
Martin

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