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

From: Animesh Manna <animesh.manna@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: jani.nikula@intel.com
Subject: [Intel-gfx] [RFC PATCH 4/5] drm/i915/display: prepend connector name to the backlight
Date: Thu,  2 Jun 2022 19:48:49 +0530	[thread overview]
Message-ID: <20220602141850.21301-5-animesh.manna@intel.com> (raw)
In-Reply-To: <20220602141850.21301-1-animesh.manna@intel.com>

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.

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;
 
-- 
2.29.0

