On Thu, 02 Jun 2022, Animesh Manna <animesh.manna@xxxxxxxxx> wrote:
> From: Arun R Murthy <arun.r.murthy@xxxxxxxxx>
>
> 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@xxxxxxxxx>
> ---
> 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
