[PATCH v7 10/23] drm: bridge: dw_hdmi: Invalidate CEC phys addr from connector detect

[Hans Verkuil]

On 18/05/2026 20:01, Jonas Karlman wrote:
> Wait until the connector detect ops is called to invalidate CEC phys
> addr instead of doing it directly from the irq handler.
> 
> The CEC notifier is only registered for the dw-hdmi connector so this
> has no impact when the bridge connector is used.
> 
> Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
> Tested-by: Diederik de Haas <diederik at cknow-tech.com>  # Rock64, RockPro64, Quartz64-B
> Signed-off-by: Jonas Karlman <jonas at kwiboo.se>

Acked-by: Hans Verkuil <hverkuil+cisco at kernel.org>

Regards,

	Hans

> ---
> v7: Update commit message
> v6: Collect t-b tag
> v5: No change
> v4: No change
> v3: No change
> v2: Collect r-b tag
> ---
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 18 +++++++++++-------
>  1 file changed, 11 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index 5fd26ff8f55b..aae1b890167b 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -2472,7 +2472,17 @@ dw_hdmi_connector_detect(struct drm_connector *connector, bool force)
>  {
>  	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
>  					     connector);
> -	return dw_hdmi_detect(hdmi);
> +	enum drm_connector_status status;
> +
> +	status = dw_hdmi_detect(hdmi);
> +
> +	if (status == connector_status_disconnected) {
> +		mutex_lock(&hdmi->cec_notifier_mutex);
> +		cec_notifier_phys_addr_invalidate(hdmi->cec_notifier);
> +		mutex_unlock(&hdmi->cec_notifier_mutex);
> +	}
> +
> +	return status;
>  }
>  
>  static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
> @@ -3106,12 +3116,6 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
>  				       phy_stat & HDMI_PHY_HPD,
>  				       phy_stat & HDMI_PHY_RX_SENSE);
>  
> -		if ((phy_stat & (HDMI_PHY_RX_SENSE | HDMI_PHY_HPD)) == 0) {
> -			mutex_lock(&hdmi->cec_notifier_mutex);
> -			cec_notifier_phys_addr_invalidate(hdmi->cec_notifier);
> -			mutex_unlock(&hdmi->cec_notifier_mutex);
> -		}
> -
>  		if ((intr_stat & HDMI_IH_PHY_STAT0_HPD) &&
>  		    (phy_stat & HDMI_PHY_HPD))
>  			status = connector_status_connected;