DSC does not support bpc under 8. Return an error if that happens to be the case.
Signed-off-by: Suraj Kandpal <[email protected]> --- drivers/gpu/drm/i915/display/intel_vdsc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index 8158e3702ed5..39bf8bee106c 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -297,6 +297,11 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config) vdsc_cfg->bits_per_pixel = pipe_config->dsc.compressed_bpp_x16; + if (vdsc_cfg->bites_per_pixel < 8) { + drm_dbg_kms(&dev_priv->drm, "DSC bpc requirements not met\n"); + return -EINVAL; + } + /* * According to DSC 1.2 specs in Section 4.1 if native_420 is set * we need to double the current bpp. -- 2.43.2
