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drm/i915: add haswell_set_pipeconf 

It's a copy of ironlake_set_pipeconf with 2 differences:
  - There is no BPC field to set.
  - The interlaced mask is now 2 bits instead of 3.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2012-10-05 12:05:57 -03:00 committed by Daniel Vetter
parent 5dc5298bb3
commit ee2b0b382a
2 changed files with 27 additions and 1 deletions
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1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -2639,6 +2639,7 @@
#define PIPECONF_GAMMA (1<<24)
#define PIPECONF_FORCE_BORDER (1<<25)
#define PIPECONF_INTERLACE_MASK (7 << 21)
#define PIPECONF_INTERLACE_MASK_HSW (3 << 21)
/* Note that pre-gen3 does not support interlaced display directly. Panel
* fitting must be disabled on pre-ilk for interlaced. */
#define PIPECONF_PROGRESSIVE (0 << 21)

27
drivers/gpu/drm/i915/intel_display.c
View File

@ -4721,6 +4721,31 @@ static void ironlake_set_pipeconf(struct drm_crtc *crtc,
POSTING_READ(PIPECONF(pipe));
}
static void haswell_set_pipeconf(struct drm_crtc *crtc,
struct drm_display_mode *adjusted_mode,
bool dither)
{
struct drm_i915_private *dev_priv = crtc->dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
uint32_t val;
val = I915_READ(PIPECONF(pipe));
val &= ~(PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_MASK);
if (dither)
val |= (PIPECONF_DITHER_EN | PIPECONF_DITHER_TYPE_SP);
val &= ~PIPECONF_INTERLACE_MASK_HSW;
if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
val |= PIPECONF_INTERLACED_ILK;
else
val |= PIPECONF_PROGRESSIVE;
I915_WRITE(PIPECONF(pipe), val);
POSTING_READ(PIPECONF(pipe));
}
static bool ironlake_compute_clocks(struct drm_crtc *crtc,
struct drm_display_mode *adjusted_mode,
intel_clock_t *clock,
@ -5322,7 +5347,7 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
if (is_cpu_edp)
ironlake_set_pll_edp(crtc, adjusted_mode->clock);
ironlake_set_pipeconf(crtc, adjusted_mode, dither);
haswell_set_pipeconf(crtc, adjusted_mode, dither);
intel_wait_for_vblank(dev, pipe);