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    Subject[PATCH 5.14 215/432] drm/amd/amdgpu: Update debugfs link_settings output link_rate field in hex
    Date
    From: Anson Jacob <Anson.Jacob@amd.com>

    [ Upstream commit 1a394b3c3de2577f200cb623c52a5c2b82805cec ]

    link_rate is updated via debugfs using hex values, set it to output
    in hex as well.

    eg: Resolution: 1920x1080@144Hz
    cat /sys/kernel/debug/dri/0/DP-1/link_settings
    Current: 4 0x14 0 Verified: 4 0x1e 0 Reported: 4 0x1e 16 Preferred: 0 0x0 0

    echo "4 0x1e" > /sys/kernel/debug/dri/0/DP-1/link_settings

    cat /sys/kernel/debug/dri/0/DP-1/link_settings
    Current: 4 0x1e 0 Verified: 4 0x1e 0 Reported: 4 0x1e 16 Preferred: 4 0x1e 0

    Signed-off-by: Anson Jacob <Anson.Jacob@amd.com>
    Reviewed-by: Harry Wentland <harry.wentland@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 16 ++++++++--------
    1 file changed, 8 insertions(+), 8 deletions(-)

    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 f1145086a468..1d15a9af9956 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
    @@ -197,29 +197,29 @@ static ssize_t dp_link_settings_read(struct file *f, char __user *buf,

    rd_buf_ptr = rd_buf;

    - str_len = strlen("Current: %d %d %d ");
    - snprintf(rd_buf_ptr, str_len, "Current: %d %d %d ",
    + str_len = strlen("Current: %d 0x%x %d ");
    + snprintf(rd_buf_ptr, str_len, "Current: %d 0x%x %d ",
    link->cur_link_settings.lane_count,
    link->cur_link_settings.link_rate,
    link->cur_link_settings.link_spread);
    rd_buf_ptr += str_len;

    - str_len = strlen("Verified: %d %d %d ");
    - snprintf(rd_buf_ptr, str_len, "Verified: %d %d %d ",
    + str_len = strlen("Verified: %d 0x%x %d ");
    + snprintf(rd_buf_ptr, str_len, "Verified: %d 0x%x %d ",
    link->verified_link_cap.lane_count,
    link->verified_link_cap.link_rate,
    link->verified_link_cap.link_spread);
    rd_buf_ptr += str_len;

    - str_len = strlen("Reported: %d %d %d ");
    - snprintf(rd_buf_ptr, str_len, "Reported: %d %d %d ",
    + str_len = strlen("Reported: %d 0x%x %d ");
    + snprintf(rd_buf_ptr, str_len, "Reported: %d 0x%x %d ",
    link->reported_link_cap.lane_count,
    link->reported_link_cap.link_rate,
    link->reported_link_cap.link_spread);
    rd_buf_ptr += str_len;

    - str_len = strlen("Preferred: %d %d %d ");
    - snprintf(rd_buf_ptr, str_len, "Preferred: %d %d %d\n",
    + str_len = strlen("Preferred: %d 0x%x %d ");
    + snprintf(rd_buf_ptr, str_len, "Preferred: %d 0x%x %d\n",
    link->preferred_link_setting.lane_count,
    link->preferred_link_setting.link_rate,
    link->preferred_link_setting.link_spread);
    --
    2.30.2


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