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drm/amd/display: Update BW bounding box unconditionally for DCN6

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[Description]
DCN6 needs to update BW bounding box in hw init in order to propagate
the Alt-Ch aperture info into DML. In this case update unconditionally
on dcn6 HW init.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2026-07-17 09:44:15 -04:00 committed by Alex Deucher
parent 1cdb23735d
commit d434acd1ca
1 changed files with 2 additions and 6 deletions
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8
drivers/gpu/drm/amd/display/dc/hwss/dcn60/dcn60_hwseq.c
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@ -548,7 +548,6 @@ void dcn60_init_hw(struct dc *dc)
unsigned int edp_num;
uint32_t backlight = MAX_BACKLIGHT_LEVEL;
uint32_t user_level = MAX_BACKLIGHT_LEVEL;
int current_dchub_ref_freq = 0;
if (dc->clk_mgr && dc->clk_mgr->funcs && dc->clk_mgr->funcs->init_clocks) {
dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
@ -589,8 +588,6 @@ void dcn60_init_hw(struct dc *dc)
dc->ctx->dc_bios->fw_info.pll_info.crystal_frequency,
&res_pool->ref_clocks.dccg_ref_clock_inKhz);
current_dchub_ref_freq = res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000;
(res_pool->hubbub->funcs->get_dchub_ref_freq)(res_pool->hubbub,
res_pool->ref_clocks.dccg_ref_clock_inKhz,
&res_pool->ref_clocks.dchub_ref_clock_inKhz);
@ -764,9 +761,8 @@ void dcn60_init_hw(struct dc *dc)
dc->caps.dmub_caps.fams_ver = dc->ctx->dmub_srv->dmub->feature_caps.fw_assisted_mclk_switch_ver;
dc->debug.fams2_config.bits.enable &=
dc->caps.dmub_caps.fams_ver == dc->debug.fams_version.ver; // sw & fw fams versions must match for support
if ((!dc->debug.fams2_config.bits.enable && dc->res_pool->funcs->update_bw_bounding_box)
|| res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000 != current_dchub_ref_freq) {
/* update bounding box if FAMS2 disabled, or if dchub clk has changed */
if (dc->res_pool->funcs->update_bw_bounding_box) {
/* For DCN6 re-update unconditionally to propagate Alt-Ch address info into DML */
if (dc->clk_mgr)
dc->res_pool->funcs->update_bw_bounding_box(dc, dc->clk_mgr->bw_params);
}