summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMichael Strauss <michael.strauss@amd.com>2019-08-07 16:52:20 -0400
committerStanley.Yang <Stanley.Yang@amd.com>2019-10-18 15:49:15 +0800
commit80f047f519813bc77fe75f1df9d400e6bda5d189 (patch)
treee67ae868ae25f49da221c971d031943cbc1c765f
parent4fd14da7e227e289e0e4b52c4046ebb90c099aa3 (diff)
drm/amd/display: Fix rn audio playback and video playback speed
[WHY] dprefclk is improperly read due to incorrect units used. Causes an audio clock to be improperly set, making audio non-functional and videos play back too fast [HOW] Scale dprefclk value from MHz to KHz (multiply by 1000) to ensure that dprefclk_khz is in correct units Signed-off-by: Michael Strauss <michael.strauss@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index 93e46e376bb1..fb8aa9436bf0 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -377,7 +377,7 @@ void rn_get_clk_states(struct clk_mgr *clk_mgr_base, struct clk_states *s)
rn_dump_clk_registers(&sb, clk_mgr_base, &log_info);
- s->dprefclk_khz = sb.dprefclk;
+ s->dprefclk_khz = sb.dprefclk * 1000;
}
void rn_enable_pme_wa(struct clk_mgr *clk_mgr_base)
@@ -633,16 +633,15 @@ void rn_clk_mgr_construct(
clk_mgr->dentist_vco_freq_khz = 3600000;
rn_dump_clk_registers(&s, &clk_mgr->base, &log_info);
- clk_mgr->base.dprefclk_khz = s.dprefclk;
-
- if (clk_mgr->base.dprefclk_khz != 600000) {
- clk_mgr->base.dprefclk_khz = 600000;
- ASSERT(1); //TODO: Renoir follow up.
- }
+ /* Convert dprefclk units from MHz to KHz */
+ /* Value already divided by 10, some resolution lost */
+ clk_mgr->base.dprefclk_khz = s.dprefclk * 1000;
/* in case we don't get a value from the register, use default */
- if (clk_mgr->base.dprefclk_khz == 0)
+ if (clk_mgr->base.dprefclk_khz == 0) {
+ ASSERT(clk_mgr->base.dprefclk_khz == 600000);
clk_mgr->base.dprefclk_khz = 600000;
+ }
}
dce_clock_read_ss_info(clk_mgr);