[PATCH v2 2/8] drm: adv7511: Add max_mode_clock_khz variable to struct adv7511_chip_info

[Robert Foss]

On Wed, Aug 30, 2023 at 4:24 PM Biju Das <biju.das.jz at bp.renesas.com> wrote:
>
> The ADV7533 supports a maximum pixel clock of 80MHz whereas it is 148.5MHz
> for ADV7535. Add max_mode_clock_khz variable to struct adv7511_chip_info to
> handle this difference.
>
> Signed-off-by: Biju Das <biju.das.jz at bp.renesas.com>
> Reviewed-by: Adam Ford <aford173 at gmail.com>
> Tested-by: Adam Ford <aford173 at gmail.com> #imx8mm-beacon
> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> ---
>  * Added Rb tag from Adam and Laurent
>  * Added tested by tag from Adam.
>  * Replaced max_mode_clock->max_mode_clock_khz in struct adv7511_chip_info
>  * Replaced variable type from unsigned int->unsigned long.
> ---
>  drivers/gpu/drm/bridge/adv7511/adv7511.h     | 1 +
>  drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 2 ++
>  drivers/gpu/drm/bridge/adv7511/adv7533.c     | 2 +-
>  3 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h
> index 59e8ef10d72e..b9c6c1e8a353 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511.h
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h
> @@ -335,6 +335,7 @@ enum adv7511_type {
>
>  struct adv7511_chip_info {
>         enum adv7511_type type;
> +       unsigned int max_mode_clock_khz;
>  };
>
>  struct adv7511 {
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> index d869dbe41873..12ceffd6a9eb 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> @@ -1369,10 +1369,12 @@ static const struct adv7511_chip_info adv7511_chip_info = {
>
>  static const struct adv7511_chip_info adv7533_chip_info = {
>         .type = ADV7533,
> +       .max_mode_clock_khz = 80000,
>  };
>
>  static const struct adv7511_chip_info adv7535_chip_info = {
>         .type = ADV7535,
> +       .max_mode_clock_khz = 148500,
>  };
>
>  static const struct i2c_device_id adv7511_i2c_ids[] = {
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c
> index c452c4dc1c3f..1d113489754c 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c
> @@ -108,7 +108,7 @@ enum drm_mode_status adv7533_mode_valid(struct adv7511 *adv,
>         u8 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
>
>         /* Check max clock for either 7533 or 7535 */
> -       if (mode->clock > (adv->info->type == ADV7533 ? 80000 : 148500))
> +       if (mode->clock > adv->info->max_mode_clock_khz)
>                 return MODE_CLOCK_HIGH;
>
>         /* Check max clock for each lane */
> --
> 2.25.1
>

Reviewed-by: Robert Foss <rfoss at kernel.org>