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authorNicholas Kazlauskas <nicholas.kazlauskas@amd.com>2026-01-14 22:55:38 +0300
committerAlex Deucher <alexander.deucher@amd.com>2026-02-04 00:39:37 +0300
commitb8285d2ee73758386252cc3a67839bc463dfa1cc (patch)
treeca5c171a1281b6867834dd826be98c18a22865cd
parent8488fb054ea8a603921fe0a05bfc2bd43e64c5bc (diff)
downloadlinux-b8285d2ee73758386252cc3a67839bc463dfa1cc.tar.xz
drm/amd/display: Make DSC FGCG a DSC block level function
[Why] FGCG shouldn't be called at the DC resource level as part of DSC creation because dc_create is intended for SW init, not HW init, and register access is not guaranteed to work at this phase. [How] Add a set_fgcg function at the DSC interface level. Existing ASIC can continue using the function in DC resource to retain current compatibility but further development should favor calling the function pointer during init_hw (if it exists). Reviewed-by: Dillon Varone <dillon.varone@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/dc/dsc/dsc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dsc.h b/drivers/gpu/drm/amd/display/dc/dsc/dsc.h
index 81c83d5fe042..ad7ef83694ea 100644
--- a/drivers/gpu/drm/amd/display/dc/dsc/dsc.h
+++ b/drivers/gpu/drm/amd/display/dc/dsc/dsc.h
@@ -115,6 +115,7 @@ struct dsc_funcs {
void (*dsc_disconnect)(struct display_stream_compressor *dsc);
void (*dsc_wait_disconnect_pending_clear)(struct display_stream_compressor *dsc);
void (*dsc_get_single_enc_caps)(struct dsc_enc_caps *dsc_enc_caps, unsigned int max_dscclk_khz);
+ void (*set_fgcg)(struct display_stream_compressor *dsc, bool enable);
};
#endif