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    Subject[PATCH 6.0 198/862] drm/amd/display: explicitly disable psr_feature_enable appropriately
    Date
    From: Shirish S <shirish.s@amd.com>

    commit 6094b9136ca9038b61e9c4b5d25cd5512ce50b34 upstream.

    [Why]
    If psr_feature_enable is set to true by default, it continues to be enabled
    for non capable links.

    [How]
    explicitly disable the feature on links that are not capable of the same.

    Fixes: 8c322309e48e9 ("drm/amd/display: Enable PSR")
    Signed-off-by: Shirish S <shirish.s@amd.com>
    Reviewed-by: Leo Li <sunpeng.li@amd.com>
    Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org # 5.15+
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c | 8 ++++++--
    1 file changed, 6 insertions(+), 2 deletions(-)

    --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
    +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
    @@ -60,11 +60,15 @@ static bool link_supports_psrsu(struct d
    */
    void amdgpu_dm_set_psr_caps(struct dc_link *link)
    {
    - if (!(link->connector_signal & SIGNAL_TYPE_EDP))
    + if (!(link->connector_signal & SIGNAL_TYPE_EDP)) {
    + link->psr_settings.psr_feature_enabled = false;
    return;
    + }

    - if (link->type == dc_connection_none)
    + if (link->type == dc_connection_none) {
    + link->psr_settings.psr_feature_enabled = false;
    return;
    + }

    if (link->dpcd_caps.psr_info.psr_version == 0) {
    link->psr_settings.psr_version = DC_PSR_VERSION_UNSUPPORTED;

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