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| author | Zhenyu Wang <zhenyuw@linux.intel.com> | 2009-10-19 15:43:49 +0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2009-10-19 11:03:43 -0700 |
| commit | b1f60b7029989da71fd8ea1b1176480fac9e846c (patch) | |
| tree | 774173fc5f95a2c7c72d931d9305500640ac6c31 /drivers/gpu/drm/i915/intel_display.c | |
| parent | c038e51e841581cc3fb9a76e5e16331331e9c85c (diff) | |
| download | talos-op-linux-b1f60b7029989da71fd8ea1b1176480fac9e846c.tar.gz talos-op-linux-b1f60b7029989da71fd8ea1b1176480fac9e846c.zip | |
drm/i915: fix panel fitting filter coefficient select for Ironlake
Must set filter selection as hardcoded coefficients for medium 3x3
filtering, which matches vbios setting for Ironlake.
This fixes display corrupt issue on HP arrandale with new vbios.
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/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index db4c38700951..e189fd6dedcf 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1515,7 +1515,7 @@ static void igdng_crtc_dpms(struct drm_crtc *crtc, int mode) /* Enable panel fitting for LVDS */ if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) { temp = I915_READ(pf_ctl_reg); - I915_WRITE(pf_ctl_reg, temp | PF_ENABLE); + I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3); /* currently full aspect */ I915_WRITE(pf_win_pos, 0); |
