From b8285d2ee73758386252cc3a67839bc463dfa1cc Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Wed, 14 Jan 2026 14:55:38 -0500 Subject: [PATCH] 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 Signed-off-by: Nicholas Kazlauskas Signed-off-by: Wayne Lin Tested-by: Dan Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dsc/dsc.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dsc.h b/drivers/gpu/drm/amd/display/dc/dsc/dsc.h index 81c83d5fe0422..ad7ef83694ea1 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 -- 2.47.3