From af7912e57316caa1b705f06b03592cec0737cb36 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 26 Jul 2012 09:50:57 -0400 Subject: drm/radeon: track whether the GPU controls the backlight (v2) A table in the vbios tells us whether the GPU backlight controller is used or not. If the bit is set, the GPU backlight controller is used; if it is not set, an off-chip backlight controller is used. v2: store all the firmware flags, not just BL control Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_atombios.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/radeon/radeon_atombios.c') diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index d67d4f3eb6f4..e368b3027cba 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1254,6 +1254,10 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) if (rdev->clock.max_pixel_clock == 0) rdev->clock.max_pixel_clock = 40000; + /* not technically a clock, but... */ + rdev->mode_info.firmware_flags = + le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess); + return true; } -- cgit v1.2.3