From: Yihan Zhu <yihan.zhu@xxxxxxx>
Missing clock gating programming blocks memory power on from boot up.
Reviewed-by: Chris Park <chris.park@xxxxxxx>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
Signed-off-by: Yihan Zhu <yihan.zhu@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_mpc.c | 3 ++-
drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_mpc.c
index 994b21ed272f..e789e654c387 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_mpc.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_mpc.c
@@ -71,12 +71,13 @@ void mpc32_power_on_blnd_lut(
{
struct dcn30_mpc *mpc30 = TO_DCN30_MPC(mpc);
+ REG_SET(MPCC_MCM_MEM_PWR_CTRL[mpcc_id], 0, MPCC_MCM_1DLUT_MEM_PWR_DIS, power_on);
+
if (mpc->ctx->dc->debug.enable_mem_low_power.bits.cm) {
if (power_on) {
REG_UPDATE(MPCC_MCM_MEM_PWR_CTRL[mpcc_id], MPCC_MCM_1DLUT_MEM_PWR_FORCE, 0);
REG_WAIT(MPCC_MCM_MEM_PWR_CTRL[mpcc_id], MPCC_MCM_1DLUT_MEM_PWR_STATE, 0, 1, 5);
} else if (!mpc->ctx->dc->debug.disable_mem_low_power) {
- ASSERT(false);
/* TODO: change to mpc
* dpp_base->ctx->dc->optimized_required = true;
* dpp_base->deferred_reg_writes.bits.disable_blnd_lut = true;
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
index 1a0ed1c7e2d4..13324422ff50 100644
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
@@ -736,7 +736,7 @@ static const struct dc_debug_options debug_defaults_drv = {
.i2c = true,
.dmcu = false, // This is previously known to cause hang on S3 cycles if enabled
.dscl = true,
- .cm = false,
+ .cm = true,
.mpc = true,
.optc = true,
.vpg = true,
--
2.42.0
