Re: [PATCH] imx_serial: set wake bit when we receive a data byte

[Martin Kaiser]

Hi Philippe,

thanks for reviewing my patch.

Philippe Mathieu-Daudé (philmd@linaro.org) wrote:

> Shouldn't we mask this bit for interruptions now?

yes, we should support interrupts from the wake bit. I'll add your
snippet and send a v2.

Thanks,
Martin

> -- >8 --
> diff --git a/include/hw/char/imx_serial.h b/include/hw/char/imx_serial.h
> index 91c9894ad5..b823f94519 100644
> --- a/include/hw/char/imx_serial.h
> +++ b/include/hw/char/imx_serial.h
> @@ -71,6 +71,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(IMXSerialState, IMX_SERIAL)

>  #define UCR4_DREN       BIT(0)    /* Receive Data Ready interrupt enable */
>  #define UCR4_TCEN       BIT(3)    /* TX complete interrupt enable */
> +#define UCR4_WKEN       BIT(7)    /* WAKE interrupt enable */

>  #define UTS1_TXEMPTY    (1<<6)
>  #define UTS1_RXEMPTY    (1<<5)
> diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c
> index ee1375e26d..c8ec247350 100644
> --- a/hw/char/imx_serial.c
> +++ b/hw/char/imx_serial.c
> @@ -80,7 +80,7 @@ static void imx_update(IMXSerialState *s)
>       * TCEN and TXDC are both bit 3
>       * RDR and DREN are both bit 0
>       */
> -    mask |= s->ucr4 & (UCR4_TCEN | UCR4_DREN);
> +    mask |= s->ucr4 & (UCR4_WKEN | UCR4_TCEN | UCR4_DREN);

>      usr2 = s->usr2 & mask;
> ---