From 4a4c3cc146b12fea3a25748c43abfb461978bcee Mon Sep 17 00:00:00 2001 From: Sankeerth Billakanti Date: Mon, 7 Feb 2022 16:17:04 -0800 Subject: [PATCH] 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 Reviewed-by: Stephen Boyd Signed-off-by: Douglas Anderson Link: https://lore.kernel.org/r/20220207161612.REPOST.v1.3.Ie81d594ec2327dae6410db359cc492484bab171f@changeid Signed-off-by: Vinod Koul --- drivers/phy/qualcomm/phy-qcom-edp.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c index 21cafbb..cacd32f 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) -- 2.7.4