From: Tom Chung <chiahsuan.chung@amd.com>
Date: Thu, 6 Feb 2025 03:30:17 +0000 (+0800)
Subject: drm/amd/display: Revert "Disable PSR-SU on some OLED panel"
X-Git-Tag: block-6.15-20250403~41^2~12^2~197
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=dc84a21f5f8d6930219237008295ae6d60e894ca;p=linux-block.git

drm/amd/display: Revert "Disable PSR-SU on some OLED panel"

This reverts commit c31b41f1cb32450d8ac176eef9bda979760040e7.

We planning to disable the PSR-SU and fallback to PSR1 for
all eDP panels not only for specific eDP panel temporarily.

Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
index 104f03868266..45858bf1523d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
@@ -30,23 +30,6 @@
 #include "amdgpu_dm.h"
 #include "modules/power/power_helpers.h"
 
-static bool is_specific_oled_panel(struct dc_link *link)
-{
-	if (!link->dpcd_sink_ext_caps.bits.oled)
-		return false;
-
-	/* Disable PSR-SU for some OLED panels to avoid glitches */
-	if (link->dpcd_caps.sink_dev_id == 0xBA4159) {
-		uint8_t sink_dev_id_str1[] = {'4', '0', 'C', 'U', '1'};
-
-		if (!memcmp(link->dpcd_caps.sink_dev_id_str, sink_dev_id_str1,
-		    sizeof(sink_dev_id_str1)))
-			return true;
-	}
-
-	return false;
-}
-
 static bool link_supports_psrsu(struct dc_link *link)
 {
 	struct dc *dc = link->ctx->dc;
@@ -57,9 +40,6 @@ static bool link_supports_psrsu(struct dc_link *link)
 	if (dc->ctx->dce_version < DCN_VERSION_3_1)
 		return false;
 
-	if (is_specific_oled_panel(link))
-		return false;
-
 	if (!is_psr_su_specific_panel(link))
 		return false;