diff options
| author | Sankeerth Billakanti <quic_sbillaka@quicinc.com> | 2022-02-07 16:17:04 -0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-02-08 11:02:55 +0530 |
| commit | 4a4c3cc146b12fea3a25748c43abfb461978bcee (patch) | |
| tree | 967b820f85d8a7713a5ab3b0b291d40542f93329 /drivers/phy/qualcomm/phy-qcom-edp.c | |
| parent | cc62512c1be39f19dc4d5c9831c4ff00481f9de9 (diff) | |
| download | lwn-4a4c3cc146b12fea3a25748c43abfb461978bcee.tar.gz lwn-4a4c3cc146b12fea3a25748c43abfb461978bcee.zip | |
phy: qcom: Program SSC only if supported by sink
Some legacy eDP sinks may not support SSC. The support for SSC is
indicated through an opts flag from the controller driver. This
change will enable SSC only if the sink supports it.
Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220207161612.REPOST.v1.3.Ie81d594ec2327dae6410db359cc492484bab171f@changeid
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-edp.c')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-edp.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c index 21cafbb623f8..cacd32f6e0cc 100644 --- a/drivers/phy/qualcomm/phy-qcom-edp.c +++ b/drivers/phy/qualcomm/phy-qcom-edp.c @@ -335,9 +335,11 @@ static int qcom_edp_phy_power_on(struct phy *phy) writel(0x00, edp->tx0 + TXn_LANE_MODE_1); writel(0x00, edp->tx1 + TXn_LANE_MODE_1); - ret = qcom_edp_configure_ssc(edp); - if (ret) - return ret; + if (edp->dp_opts.ssc) { + ret = qcom_edp_configure_ssc(edp); + if (ret) + return ret; + } ret = qcom_edp_configure_pll(edp); if (ret) |