[PATCH v2] drm/bridge: tfp410: add pclk limits

[Tomi Valkeinen]

Hi Andrzej,

On 21/01/2020 11:46, 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 at ti.com>
> Reviewed-by: Andrzej Hajda <a.hajda at samsung.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> ---
>   drivers/gpu/drm/bridge/ti-tfp410.c | 13 +++++++++++++
>   1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
> index 6f6d6d1e60ae..108e8cd7ab68 100644
> --- a/drivers/gpu/drm/bridge/ti-tfp410.c
> +++ b/drivers/gpu/drm/bridge/ti-tfp410.c
> @@ -167,10 +167,23 @@ 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)
> +		return MODE_CLOCK_LOW;
> +
> +	if (mode->clock > 165000)
> +		return MODE_CLOCK_HIGH;
> +
> +	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)
> 

Is this ok to merge?

  Tomi

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