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drm/amd/display: Clear optc false state when disable otg 

[why]
when disable optc, need to clear the underflow status as well.

Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Charlene Liu 2022-03-15 16:42:33 -04:00 committed by Alex Deucher
parent 58e16c752e
commit 83e9faac9a
2 changed files with 11 additions and 8 deletions
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14
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hwseq.c
View File

@ -339,20 +339,20 @@ void dcn31_enable_power_gating_plane(
bool enable)
{
bool force_on = true; /* disable power gating */
uint32_t org_ip_request_cntl = 0;
if (enable && !hws->ctx->dc->debug.disable_hubp_power_gate)
force_on = false;
REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
if (org_ip_request_cntl == 0)
REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
/* DCHUBP0/1/2/3/4/5 */
REG_UPDATE(DOMAIN0_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN0_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
REG_UPDATE(DOMAIN2_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN2_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
/* DPP0/1/2/3/4/5 */
REG_UPDATE(DOMAIN1_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN1_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
REG_UPDATE(DOMAIN3_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN3_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
force_on = true; /* disable power gating */
if (enable && !hws->ctx->dc->debug.disable_dsc_power_gate)
@ -360,11 +360,11 @@ void dcn31_enable_power_gating_plane(
/* DCS0/1/2/3/4/5 */
REG_UPDATE(DOMAIN16_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN16_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
REG_UPDATE(DOMAIN17_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN17_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
REG_UPDATE(DOMAIN18_PG_CONFIG, DOMAIN_POWER_FORCEON, force_on);
REG_WAIT(DOMAIN18_PG_STATUS, DOMAIN_PGFSM_PWR_STATUS, force_on, 1, 1000);
if (org_ip_request_cntl == 0)
REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 0);
}
void dcn31_update_info_frame(struct pipe_ctx *pipe_ctx)

5
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_optc.c
View File

@ -124,7 +124,6 @@ static bool optc31_enable_crtc(struct timing_generator *optc)
static bool optc31_disable_crtc(struct timing_generator *optc)
{
struct optc *optc1 = DCN10TG_FROM_TG(optc);
/* disable otg request until end of the first line
* in the vertical blank region
*/
@ -138,6 +137,7 @@ static bool optc31_disable_crtc(struct timing_generator *optc)
REG_WAIT(OTG_CLOCK_CONTROL,
OTG_BUSY, 0,
1, 100000);
optc1_clear_optc_underflow(optc);
return true;
}
@ -158,6 +158,9 @@ static bool optc31_immediate_disable_crtc(struct timing_generator *optc)
OTG_BUSY, 0,
1, 100000);
/* clear the false state */
optc1_clear_optc_underflow(optc);
return true;
}