From: Fangzhi Zuo <Jerry.Zuo@amd.com>
Date: Thu, 20 Oct 2022 15:46:30 +0000 (-0400)
Subject: drm/amd/display: Add UHBR135 and UHBR20 into debugfs
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b66fca42c4e5739fa7ce17edd1c4d451b0d3c78d;p=linux.git

drm/amd/display: Add UHBR135 and UHBR20 into debugfs

Add support to manually force link rate to UHBR135 (0x546) and UHBR20
(0x7d0).

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index ee242d9d8b060..0c717d7b12e56 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -299,6 +299,8 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
 	case LINK_RATE_HIGH2:
 	case LINK_RATE_HIGH3:
 	case LINK_RATE_UHBR10:
+	case LINK_RATE_UHBR13_5:
+	case LINK_RATE_UHBR20:
 		break;
 	default:
 		valid_input = false;