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Patch is pushed to drm-intel-next. Thanks JP for the review. Regards, Ankit > > On Wed, Nov 13, 2024 at 1:53 PM Ankit Nautiyal > wrote: >> For Xe3_LPD the PIPE_MISC YUV420 Enable (bit 27), already implies enabling >> full blend YUV420 mode and YUV420 Mode (bit 26) is removed. >> Therefore, avoid setting YUV420 Mode for Xe3_LPD+ while programming >> PIPE_MISC for YCbCr420 output format. >> >> Bspec: 69749 >> Signed-off-by: Ankit Nautiyal >> --- >> drivers/gpu/drm/i915/display/intel_display.c | 15 ++++++++++----- >> 1 file changed, 10 insertions(+), 5 deletions(-) >> >> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c >> index e790a2de5b3d..9db255bb1230 100644 >> --- a/drivers/gpu/drm/i915/display/intel_display.c >> +++ b/drivers/gpu/drm/i915/display/intel_display.c >> @@ -3137,9 +3137,14 @@ bdw_get_pipe_misc_output_format(struct intel_crtc *crtc) >> tmp = intel_de_read(dev_priv, PIPE_MISC(crtc->pipe)); >> >> if (tmp & PIPE_MISC_YUV420_ENABLE) { >> - /* We support 4:2:0 in full blend mode only */ >> - drm_WARN_ON(&dev_priv->drm, >> - (tmp & PIPE_MISC_YUV420_MODE_FULL_BLEND) == 0); >> + /* >> + * We support 4:2:0 in full blend mode only. >> + * For xe3_lpd+ this is implied in YUV420 Enable bit. >> + * Ensure the same for prior platforms in YUV420 Mode bit. >> + */ >> + if (DISPLAY_VER(dev_priv) < 30) >> + drm_WARN_ON(&dev_priv->drm, >> + (tmp & PIPE_MISC_YUV420_MODE_FULL_BLEND) == 0); >> >> return INTEL_OUTPUT_FORMAT_YCBCR420; >> } else if (tmp & PIPE_MISC_OUTPUT_COLORSPACE_YUV) { >> @@ -3388,8 +3393,8 @@ static void bdw_set_pipe_misc(struct intel_dsb *dsb, >> val |= PIPE_MISC_OUTPUT_COLORSPACE_YUV; >> >> if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) >> - val |= PIPE_MISC_YUV420_ENABLE | >> - PIPE_MISC_YUV420_MODE_FULL_BLEND; >> + val |= DISPLAY_VER(display) >= 30 ? PIPE_MISC_YUV420_ENABLE : >> + PIPE_MISC_YUV420_ENABLE | PIPE_MISC_YUV420_MODE_FULL_BLEND; >> >> if (DISPLAY_VER(dev_priv) >= 11 && is_hdr_mode(crtc_state)) >> val |= PIPE_MISC_HDR_MODE_PRECISION; >> -- >> 2.45.2 >>