diff options
| author | Zhenyu Wang <zhenyuw@linux.intel.com> | 2009-09-25 12:01:28 +0400 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-10-13 21:57:10 +0400 |
| commit | 58a27471d00dc09945cbcfbbc5cbcdcd3c28211d (patch) | |
| tree | f1679ecad026b8f6cb6440156167808195543881 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | c03342fa6d4617a77cb867ee0ec71665d520eb69 (diff) | |
| download | linux-58a27471d00dc09945cbcfbbc5cbcdcd3c28211d.tar.xz | |
drm/i915: Fix FDI M/N setting according with correct color depth
FDI M/N calculation hasn't taken the current pipe color depth into account,
but always set as 24bpp. This one checks current pipe color depth setting,
and change FDI M/N calculation a little to use bits_per_pixel first, then
convert to bytes_per_pixel later.
This fixes display corrupt issue on Arrandle LVDS with 1600x900 panel
in 18bpp dual-channel mode.
Cc: Stable Team <stable@kernel.org>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5f9272459b71..0dd87a7309e6 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1782,6 +1782,11 @@ #define PIPE_START_VBLANK_INTERRUPT_STATUS (1UL<<2) /* 965 or later */ #define PIPE_VBLANK_INTERRUPT_STATUS (1UL<<1) #define PIPE_OVERLAY_UPDATED_STATUS (1UL<<0) +#define PIPE_BPC_MASK (7 << 5) /* Ironlake */ +#define PIPE_8BPC (0 << 5) +#define PIPE_10BPC (1 << 5) +#define PIPE_6BPC (2 << 5) +#define PIPE_12BPC (3 << 5) #define DSPARB 0x70030 #define DSPARB_CSTART_MASK (0x7f << 7) |