Re: [PATCH v2 2/2] drm/bridge: lt9211: Add drive-strength-microamp DT property

[Marek Vasut]

On 5/13/26 3:31 PM, Boerge Struempfel wrote:

[...]

> @@ -666,6 +675,26 @@ static int lt9211_parse_dt(struct lt9211 *ctx)
>   
>   	ctx->panel_bridge = panel_bridge;
>   
> +	ctx->lvds_hsdrv_isel = 8; /* default: 25 uA */
> +	ret = of_property_read_u32(dev->of_node, "drive-strength-microamp",
> +				   &microamp);

if (ret && ret != -EINVAL) {
  ... error handling ...
  return ret;
}

Then you won't need the if (!ret) conditional and can reduce indent.

I also wonder whether it wouldn't be better to simply bail with 
dev_err_probe() if the property is invalid, let the user know they 
should fix their DTs before it is too late.

> +	if (!ret) {
> +		for (i = 0; i < ARRAY_SIZE(lt9211_hsdrv_microamp); i++) {
> +			if (lt9211_hsdrv_microamp[i] == microamp) {
> +				ctx->lvds_hsdrv_isel = i;
> +				break;
> +			}
> +		}
> +		if (i == ARRAY_SIZE(lt9211_hsdrv_microamp)) {
> +			dev_err(dev, "Invalid drive-strength-microamp value %u\n",
> +				microamp);
> +			return -EINVAL;
> +		}

[...]

> +
>   	return 0;
>   }