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drm: handle depth & bpp changes correctly

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Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Jesse Barnes
2009-01-09 13:56:14 -08:00
committed by Dave Airlie
parent 40a518d9f1
commit 712531bfe9
2 changed files with 35 additions and 15 deletions
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2
drivers/gpu/drm/i915/intel_display.c
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@ -401,6 +401,8 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
I915_WRITE(dspstride, crtc->fb->pitch);
dspcntr = I915_READ(dspcntr_reg);
/* Mask out pixel format bits in case we change it */
dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
switch (crtc->fb->bits_per_pixel) {
case 8:
dspcntr |= DISPPLANE_8BPP;