[PATCH 21/22] drm/amd/display: remove minimum Dispclk and apply oem panel timing.

[Tom Chung]

From: Charlene Liu <Charlene.Liu at amd.com>

[why & how]
1. apply oem panel timing (not only on OLED)
2. remove MIN_DPP_DISP_CLK request in driver.

This fix will apply for dcn31x but not
sync with DML's output.

Reviewed-by: Ovidiu Bunea <ovidiu.bunea at amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu at amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung at amd.com>
---
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c | 2 --
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c | 2 --
 drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c      | 3 ++-
 3 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
index a0fb4481d2f1..19a15acd1509 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c
@@ -194,8 +194,6 @@ static void dcn315_update_clocks(struct clk_mgr *clk_mgr_base,
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
 	if (new_clocks->dppclk_khz < MIN_DPP_DISP_CLK)
 		new_clocks->dppclk_khz = MIN_DPP_DISP_CLK;
-	if (new_clocks->dispclk_khz < MIN_DPP_DISP_CLK)
-		new_clocks->dispclk_khz = MIN_DPP_DISP_CLK;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
index c3e50c3aaa60..4b19d9cf27ce 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
@@ -201,8 +201,6 @@ static void dcn316_update_clocks(struct clk_mgr *clk_mgr_base,
 	// workaround: Limit dppclk to 100Mhz to avoid lower eDP panel switch to plus 4K monitor underflow.
 	if (new_clocks->dppclk_khz < 100000)
 		new_clocks->dppclk_khz = 100000;
-	if (new_clocks->dispclk_khz < 100000)
-		new_clocks->dispclk_khz = 100000;
 
 	if (should_set_clock(safe_to_lower, new_clocks->dppclk_khz, clk_mgr->base.clks.dppclk_khz)) {
 		if (clk_mgr->base.clks.dppclk_khz > new_clocks->dppclk_khz)
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
index dbc6e533dcac..5656d10368ad 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c
@@ -1066,7 +1066,8 @@ void dce110_edp_backlight_control(
 			DC_LOG_DC("edp_receiver_ready_T9 skipped\n");
 	}
 
-	if (!enable && link->dpcd_sink_ext_caps.bits.oled) {
+	if (!enable) {
+		/*follow oem panel config's requirement*/
 		pre_T11_delay += link->panel_config.pps.extra_pre_t11_ms;
 		msleep(pre_T11_delay);
 	}
-- 
2.34.1