From: Ville Syrjälä ville.syrjala@linux.intel.com
On HSW the pipe colorspace is configured via PIPECONF (as opposed to PIPEMISC in BDW+). Let's configure+readout that stuff correctly.
Enablling YCbCr 4:4:4 output will now be a simple matter of setting crtc_state->output_format appropriately in the encoder .compute_config().
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/display/intel_display.c | 13 ++++++++++++- drivers/gpu/drm/i915/i915_reg.h | 1 + 2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 1dd1aa29a649..bd3ff96c1618 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -9430,6 +9430,10 @@ static void haswell_set_pipeconf(const struct intel_crtc_state *crtc_state) else val |= PIPECONF_PROGRESSIVE;
+ if (IS_HASWELL(dev_priv) && + crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) + val |= PIPECONF_OUTPUT_COLORSPACE_YUV_HSW; + I915_WRITE(PIPECONF(cpu_transcoder), val); POSTING_READ(PIPECONF(cpu_transcoder)); } @@ -10423,7 +10427,14 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
intel_get_pipe_src_size(crtc, pipe_config);
- if (INTEL_GEN(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) { + if (IS_HASWELL(dev_priv)) { + u32 tmp = I915_READ(PIPECONF(pipe_config->cpu_transcoder)); + + if (tmp & PIPECONF_OUTPUT_COLORSPACE_YUV_HSW) + pipe_config->output_format = INTEL_OUTPUT_FORMAT_YCBCR444; + else + pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; + } else { pipe_config->output_format = bdw_get_pipemisc_output_format(crtc);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 66f7f417231f..58471312b8b2 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5712,6 +5712,7 @@ enum { #define PIPECONF_CXSR_DOWNCLOCK (1 << 16) #define PIPECONF_EDP_RR_MODE_SWITCH_VLV (1 << 14) #define PIPECONF_COLOR_RANGE_SELECT (1 << 13) +#define PIPECONF_OUTPUT_COLORSPACE_YUV_HSW (1 << 11) /* hsw only */ #define PIPECONF_BPC_MASK (0x7 << 5) #define PIPECONF_8BPC (0 << 5) #define PIPECONF_10BPC (1 << 5)