From: Sung Joon Kim <sungkim@xxxxxxx>
[why]
Make sure to ungate the clocks on boot
so programming sequence is done successfully.
[how]
Move the ungate logic after bios init.
Reviewed-by: Xi (Alex) Liu <xi.liu@xxxxxxx>
Acked-by: Hersen Wu <hersenxs.wu@xxxxxxx>
Signed-off-by: Sung Joon Kim <sungkim@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
index ff46e36cb254..0569fa6f7600 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
@@ -138,16 +138,17 @@ void dcn35_init_hw(struct dc *dc)
if (dc->clk_mgr && dc->clk_mgr->funcs->init_clocks)
dc->clk_mgr->funcs->init_clocks(dc->clk_mgr);
- REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
- REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0x3F000000);
- REG_WRITE(DCCG_GATE_DISABLE_CNTL5, 0x1f7c3fcf);
-
//dcn35_set_dmu_fgcg(hws, dc->debug.enable_fine_grain_clock_gating.bits.dmu);
if (!dcb->funcs->is_accelerated_mode(dcb)) {
/*this calls into dmubfw to do the init*/
hws->funcs.bios_golden_init(dc);
}
+
+ REG_WRITE(DCCG_GATE_DISABLE_CNTL, 0);
+ REG_WRITE(DCCG_GATE_DISABLE_CNTL2, 0x3F000000);
+ REG_WRITE(DCCG_GATE_DISABLE_CNTL5, 0x1f7c3fcf);
+
// Initialize the dccg
if (res_pool->dccg->funcs->dccg_init)
res_pool->dccg->funcs->dccg_init(res_pool->dccg);
--
2.25.1
