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Date: Fri, 28 Dec 2012 20:04:43 +0100 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Paulo Zanoni <paulo.r.zanoni@...el.com>, Damien Lespiau <damien.lespiau@...el.com>, Daniel Vetter <daniel.vetter@...ll.ch> Subject: [ 073/173] drm/i915: make the panel fitter work on pipes B and C on IVB 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paulo Zanoni <paulo.r.zanoni@...el.com> commit 13888d78c664a1f61d7b09d282f5916993827a40 upstream. I actually found this problem on Haswell, but then discovered Ivy Bridge also has it by reading the spec. I don't have the hardware to test this. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@...el.com> Reviewed-by: Damien Lespiau <damien.lespiau@...el.com> Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch> Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- drivers/gpu/drm/i915/i915_reg.h | 2 ++ drivers/gpu/drm/i915/intel_display.c | 6 +++++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5aba146..97fbd9d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3339,6 +3339,8 @@ #define _PFA_CTL_1 0x68080 #define _PFB_CTL_1 0x68880 #define PF_ENABLE (1<<31) +#define PF_PIPE_SEL_MASK_IVB (3<<29) +#define PF_PIPE_SEL_IVB(pipe) ((pipe)<<29) #define PF_FILTER_MASK (3<<23) #define PF_FILTER_PROGRAMMED (0<<23) #define PF_FILTER_MED_3x3 (1<<23) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e233541..c2ef6cd 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3387,7 +3387,11 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc) * as some pre-programmed values are broken, * e.g. x201. */ - I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); + if (IS_IVYBRIDGE(dev)) + I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 | + PF_PIPE_SEL_IVB(pipe)); + else + I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3); I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos); I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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