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authorVille Syrjälä2013-09-06 22:29:00 +0200
committerDaniel Vetter2013-09-13 14:52:16 +0200
commit42571aefafb1d330ef84eb29418832f72e7dfb4c (patch)
treec1c9e5cefc5228750b75511f3b2d1803b6f9cb23 /drivers/gpu/drm/i915/intel_ddi.c
parentdrm/i915: Make adjusted_mode.clock non-pixel multiplied (diff)
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drm/i915: Add support for pipe_bpp readout
On CTG+ read out the pipe bpp setting from hardware and fill it into pipe config. Also check it appropriately. v2: Don't do the pipe_bpp extraction inside the PCH only code block on ILK+. Avoid the PIPECONF read as we already have read it for the PIPECONF_EANBLE check. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 67880f264c65..d5215e2db42c 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1268,6 +1268,23 @@ static void intel_ddi_get_config(struct intel_encoder *encoder,
flags |= DRM_MODE_FLAG_NVSYNC;
pipe_config->adjusted_mode.flags |= flags;
+
+ switch (temp & TRANS_DDI_BPC_MASK) {
+ case TRANS_DDI_BPC_6:
+ pipe_config->pipe_bpp = 18;
+ break;
+ case TRANS_DDI_BPC_8:
+ pipe_config->pipe_bpp = 24;
+ break;
+ case TRANS_DDI_BPC_10:
+ pipe_config->pipe_bpp = 30;
+ break;
+ case TRANS_DDI_BPC_12:
+ pipe_config->pipe_bpp = 36;
+ break;
+ default:
+ break;
+ }
}
static void intel_ddi_destroy(struct drm_encoder *encoder)