diff options
| author | Suraj Kandpal <suraj.kandpal@intel.com> | 2024-09-26 13:43:28 +0530 |
|---|---|---|
| committer | Suraj Kandpal <suraj.kandpal@intel.com> | 2024-09-30 09:36:35 +0530 |
| commit | 9572bdfeb1280fd1e5beb28e34e226a6bc851280 (patch) | |
| tree | 34d03ef0796d23d9236d9cf1745994bb7ac5bc45 /drivers/gpu/drm/i915/display/intel_vdsc.c | |
| parent | df3859a4aaa40783c50f43a6a8a53c7770d59ef1 (diff) | |
drm/i915/vdsc: Add bpc check in intel_dsc_compute_params
DSC does not support bpc under 8 according to DSC 1.2a Section 2
Requirements. Return an error if that happens to be the case.
--v2
-should be bit_per_component [Mitul/Chaitanya]
-Add reference to this restriction [Chaitanya]
--v3
-Add the bpc in which we see this warning [Jani]
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240926081327.1409518-2-suraj.kandpal@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_vdsc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vdsc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index 8158e3702ed5..208f117ece57 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -306,6 +306,12 @@ int intel_dsc_compute_params(struct intel_crtc_state *pipe_config) vdsc_cfg->bits_per_component = pipe_config->pipe_bpp / 3; + if (vdsc_cfg->bits_per_component < 8) { + drm_dbg_kms(&dev_priv->drm, "DSC bpc requirements not met bpc: %d\n", + vdsc_cfg->bits_per_component); + return -EINVAL; + } + drm_dsc_set_rc_buf_thresh(vdsc_cfg); /* |