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authorMuhammad Ahmed <ahmed.ahmed@amd.com>2024-02-15 23:37:09 +0300
committerAlex Deucher <alexander.deucher@amd.com>2024-03-20 20:37:37 +0300
commit2f72e02f2f54a3ccee7808db80ff8ae474a5fcba (patch)
treef7d26473ef5bbe80db2e464cd3958a3821c5a94f
parent0c501d3c11bba2a8a5f98bbad557465ccbfb59a3 (diff)
downloadlinux-2f72e02f2f54a3ccee7808db80ff8ae474a5fcba.tar.xz
drm/amd/display: Add debug key to allow disabling dtbclk
[HOW] Add debug key to allow disabling dtbclk Reviewed-by: Charlene Liu <charlene.liu@amd.com> Acked-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Muhammad Ahmed <ahmed.ahmed@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c3
-rw-r--r--drivers/gpu/drm/amd/display/dc/dc.h1
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
index c378b879c76d..c6030bed95a0 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
@@ -244,7 +244,8 @@ void dcn35_update_clocks(struct clk_mgr *clk_mgr_base,
}
if (clk_mgr_base->clks.dtbclk_en && !new_clocks->dtbclk_en) {
- dcn35_smu_set_dtbclk(clk_mgr, false);
+ if (clk_mgr->base.ctx->dc->config.allow_0_dtb_clk)
+ dcn35_smu_set_dtbclk(clk_mgr, false);
clk_mgr_base->clks.dtbclk_en = new_clocks->dtbclk_en;
}
/* check that we're not already in lower */
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index ee8453bf958f..c1d8288a08b3 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -435,6 +435,7 @@ struct dc_config {
unsigned int disable_ips;
unsigned int disable_ips_in_vpb;
bool usb4_bw_alloc_support;
+ bool allow_0_dtb_clk;
};
enum visual_confirm {