On Tue, Feb 18, 2025 at 10:57:11AM +0200, Daniel Baluta wrote:
> We can Run/Stall the DSP via audio block control bits found in audiomix.
> Implement this functionality using the reset controller and use assert
> for Stall and deassert for Run.
>
> Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxx>
> ---
Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
> drivers/reset/reset-imx8mp-audiomix.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/reset/reset-imx8mp-audiomix.c b/drivers/reset/reset-imx8mp-audiomix.c
> index 8cc0a6b58cbc..ee56d52a7278 100644
> --- a/drivers/reset/reset-imx8mp-audiomix.c
> +++ b/drivers/reset/reset-imx8mp-audiomix.c
> @@ -15,10 +15,14 @@
> #define IMX8MP_AUDIOMIX_EARC_RESET_MASK 0x1
> #define IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK 0x2
>
> +#define IMX8MP_AUDIOMIX_DSP_OFFSET 0x108
> +#define IMX8MP_AUDIOMIX_DSP_RUNSTALL_MASK 0x20
> +
> #define IMX8MP_AUDIOMIX_EARC 0
> #define IMX8MP_AUDIOMIX_EARC_PHY 1
> +#define IMX8MP_AUDIOMIX_DSP 2
>
> -#define IMX8MP_AUDIOMIX_RESET_NUM 2
> +#define IMX8MP_AUDIOMIX_RESET_NUM 3
>
> struct imx8mp_reset_map {
> unsigned int offset;
> @@ -37,7 +41,11 @@ static const struct imx8mp_reset_map reset_map[IMX8MP_AUDIOMIX_RESET_NUM] = {
> .mask = IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK,
> .active_low = true,
> },
> -
> + [IMX8MP_AUDIOMIX_DSP] = {
> + .offset = IMX8MP_AUDIOMIX_DSP_OFFSET,
> + .mask = IMX8MP_AUDIOMIX_DSP_RUNSTALL_MASK,
> + .active_low = false,
> + },
> };
>
> struct imx8mp_audiomix_reset {
> --
> 2.25.1
>
