On 13.01.2020 14:45, Tomi Valkeinen wrote:
> Add pixel clock limits to the driver as per TFP410 datasheet: min 25MHz,
> max 165MHz.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Reviewed-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
--
Regards
Andrzej
> ---
> drivers/gpu/drm/bridge/ti-tfp410.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
> index 6f6d6d1e60ae..f378a8f79bcb 100644
> --- a/drivers/gpu/drm/bridge/ti-tfp410.c
> +++ b/drivers/gpu/drm/bridge/ti-tfp410.c
> @@ -167,10 +167,20 @@ static void tfp410_disable(struct drm_bridge *bridge)
> gpiod_set_value_cansleep(dvi->powerdown, 1);
> }
>
> +static enum drm_mode_status tfp410_mode_valid(struct drm_bridge *bridge,
> + const struct drm_display_mode *mode)
> +{
> + if (mode->clock < 25000 || mode->clock > 165000)
> + return MODE_BAD;
> +
> + return MODE_OK;
> +}
> +
> static const struct drm_bridge_funcs tfp410_bridge_funcs = {
> .attach = tfp410_attach,
> .enable = tfp410_enable,
> .disable = tfp410_disable,
> + .mode_valid = tfp410_mode_valid,
> };
>
> static void tfp410_hpd_work_func(struct work_struct *work)
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