Re: [Intel-gfx] [RFC PATCH 4/5] drm/i915/display: prepend connector name to the backlight

[Jani Nikula <jani.nikula@intel.com>]

On Thu, 02 Jun 2022, Animesh Manna <animesh.manna@intel.com> wrote:
> From: Arun R Murthy <arun.r.murthy@intel.com>
>
> With the enablement of dual eDP, there will have to exist two entries of
> backlight sysfs file. In order to avoid sysfs file name duplication, the
> file names are prepended with the connector name.

Fixed by 20f85ef89d94 ("drm/i915/backlight: use unique backlight device
names") about a year ago.

BR,
Jani.


>
> Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_backlight.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c b/drivers/gpu/drm/i915/display/intel_backlight.c
> index 68513206a66a..211fa0f07239 100644
> --- a/drivers/gpu/drm/i915/display/intel_backlight.c
> +++ b/drivers/gpu/drm/i915/display/intel_backlight.c
> @@ -967,6 +967,8 @@ int intel_backlight_device_register(struct intel_connector *connector)
>  		props.power = FB_BLANK_POWERDOWN;
>  
>  	name = kstrdup("intel_backlight", GFP_KERNEL);
> +	name = kasprintf(GFP_KERNEL, "%s.intel_backlight",
> +			connector->base.name);
>  	if (!name)
>  		return -ENOMEM;

-- 
Jani Nikula, Intel Open Source Graphics Center