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drm/amd/display: Directly retrain link from debugfs 

[why/how]
Skip logic that sets preffered link settings
and just retrain with new link_settings from Debugfs

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mikita Lipski 2020-08-13 09:44:45 -04:00 committed by Alex Deucher
parent ada577258b
commit f5b6a20c7e
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
View File

@ -34,6 +34,7 @@
#include "resource.h"
#include "dsc.h"
#include "dc_link_dp.h"
#include "link_hwss.h"
#include "dc/dc_dmub_srv.h"
struct dmub_debugfs_trace_header {
@ -246,7 +247,6 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
{
struct amdgpu_dm_connector *connector = file_inode(f)->i_private;
struct dc_link *link = connector->dc_link;
struct dc *dc = (struct dc *)link->dc;
struct dc_link_settings prefer_link_settings;
char *wr_buf = NULL;
const uint32_t wr_buf_size = 40;
@ -313,7 +313,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf,
prefer_link_settings.lane_count = param[0];
prefer_link_settings.link_rate = param[1];
dc_link_set_preferred_training_settings(dc, &prefer_link_settings, NULL, link, true);
dp_retrain_link_dp_test(link, &prefer_link_settings, false);
kfree(wr_buf);
return size;