[PATCH v4 18/23] drm/bridge: dumb-vga-dac: Provide ddc symlink in connector sysfs directory

[Neil Armstrong]

On 11/07/2019 13:26, Andrzej Pietrasiewicz wrote:
> Use the ddc pointer provided by the generic connector.
> 
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p at collabora.com>
> ---
>  drivers/gpu/drm/bridge/dumb-vga-dac.c | 19 +++++++++----------
>  1 file changed, 9 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/dumb-vga-dac.c b/drivers/gpu/drm/bridge/dumb-vga-dac.c
> index d32885b906ae..b4cc3238400a 100644
> --- a/drivers/gpu/drm/bridge/dumb-vga-dac.c
> +++ b/drivers/gpu/drm/bridge/dumb-vga-dac.c
> @@ -20,7 +20,6 @@ struct dumb_vga {
>  	struct drm_bridge	bridge;
>  	struct drm_connector	connector;
>  
> -	struct i2c_adapter	*ddc;
>  	struct regulator	*vdd;
>  };
>  
> @@ -42,10 +41,10 @@ static int dumb_vga_get_modes(struct drm_connector *connector)
>  	struct edid *edid;
>  	int ret;
>  
> -	if (IS_ERR(vga->ddc))
> +	if (IS_ERR(vga->connector.ddc))
>  		goto fallback;
>  
> -	edid = drm_get_edid(connector, vga->ddc);
> +	edid = drm_get_edid(connector, vga->connector.ddc);
>  	if (!edid) {
>  		DRM_INFO("EDID readout failed, falling back to standard modes\n");
>  		goto fallback;
> @@ -84,7 +83,7 @@ dumb_vga_connector_detect(struct drm_connector *connector, bool force)
>  	 * wire the DDC pins, or the I2C bus might not be working at
>  	 * all.
>  	 */
> -	if (!IS_ERR(vga->ddc) && drm_probe_ddc(vga->ddc))
> +	if (!IS_ERR(vga->connector.ddc) && drm_probe_ddc(vga->connector.ddc))
>  		return connector_status_connected;
>  
>  	return connector_status_unknown;
> @@ -190,14 +189,14 @@ static int dumb_vga_probe(struct platform_device *pdev)
>  		dev_dbg(&pdev->dev, "No vdd regulator found: %d\n", ret);
>  	}
>  
> -	vga->ddc = dumb_vga_retrieve_ddc(&pdev->dev);
> -	if (IS_ERR(vga->ddc)) {
> -		if (PTR_ERR(vga->ddc) == -ENODEV) {
> +	vga->connector.ddc = dumb_vga_retrieve_ddc(&pdev->dev);
> +	if (IS_ERR(vga->connector.ddc)) {
> +		if (PTR_ERR(vga->connector.ddc) == -ENODEV) {
>  			dev_dbg(&pdev->dev,
>  				"No i2c bus specified. Disabling EDID readout\n");
>  		} else {
>  			dev_err(&pdev->dev, "Couldn't retrieve i2c bus\n");
> -			return PTR_ERR(vga->ddc);
> +			return PTR_ERR(vga->connector.ddc);
>  		}
>  	}
>  
> @@ -216,8 +215,8 @@ static int dumb_vga_remove(struct platform_device *pdev)
>  
>  	drm_bridge_remove(&vga->bridge);
>  
> -	if (!IS_ERR(vga->ddc))
> -		i2c_put_adapter(vga->ddc);
> +	if (!IS_ERR(vga->connector.ddc))
> +		i2c_put_adapter(vga->connector.ddc);
>  
>  	return 0;
>  }
> 

Reviewed-by: Neil Armstrong <narmstrong at baylibre.com>