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

[Animesh Manna]

From: Arun R Murthy <arun.r.murthy at 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 at 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 0d3e761f18b4..e4ca34472721 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