On Thu, 2019-07-18 at 17:50 +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrj...@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
Typo: Enablling -> Enabling
> setting crtc_state->output_format appropriately in the encoder
> .compute_config().
>
> Signed-off-by: Ville Syrjälä <ville.syrj...@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)
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