Iwai <tiwai at suse.de> Date: Mon, 21 Feb 2011 14:19:27 +0100 Subject: [PATCH] drm/i915: Fix calculation of backlight value in combined mode
The commit a95735569312f2ab0c80425e2cd1e5cb0b4e1870 drm/i915: Refactor panel backlight controls causes a regression for GM45 that is using the combined mode for controlling the backlight brightness. The commit introduced a wrong bit shift for computing the current backlight level. Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=672946 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34524 Signed-off-by: Takashi Iwai <tiwai at suse.de> Cc: <stable at kernel.org> --- drivers/gpu/drm/i915/intel_panel.c | 1 - 1 file changed, 1 deletion(-) --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -176,7 +176,6 @@ val &= ~1; pci_read_config_byte(dev->pdev, PCI_LBPC, &lbpc); val *= lbpc; - val >>= 1; } }