linux-kernel - [PATCH v1] phy/qcom-qmp-combo: propagate correct return value at phy_power

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Message-ID: <1711660035-9656-1-git-send-email-quic_khsieh@quicinc.com>
Date: Thu, 28 Mar 2024 14:07:15 -0700
From: Kuogee Hsieh <quic_khsieh@...cinc.com>
To: <dri-devel@...ts.freedesktop.org>, <robdclark@...il.com>,
        <sean@...rly.run>, <swboyd@...omium.org>, <dianders@...omium.org>,
        <vkoul@...nel.org>, <daniel@...ll.ch>, <airlied@...il.com>,
        <agross@...nel.org>, <dmitry.baryshkov@...aro.org>,
        <abel.vesa@...aro.org>, <andersson@...nel.org>
CC: Kuogee Hsieh <quic_khsieh@...cinc.com>, <quic_abhinavk@...cinc.com>,
        <quic_jesszhan@...cinc.com>, <quic_sbillaka@...cinc.com>,
        <marijn.suijten@...ainline.org>, <freedreno@...ts.freedesktop.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v1] phy/qcom-qmp-combo: propagate correct return value at phy_power_on()

Currently qmp_combo_dp_power_on() always return 0 in regardless of
return value of cfg->configure_dp_phy(). This patch propagate
return value of cfg->configure_dp_phy() all the way back to caller.

Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 36632fa..884973a 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -2754,6 +2754,7 @@ static int qmp_combo_dp_power_on(struct phy *phy)
 	const struct qmp_phy_cfg *cfg = qmp->cfg;
 	void __iomem *tx = qmp->dp_tx;
 	void __iomem *tx2 = qmp->dp_tx2;
+	int ret = 0;
 
 	mutex_lock(&qmp->phy_mutex);
 
@@ -2766,11 +2767,11 @@ static int qmp_combo_dp_power_on(struct phy *phy)
 	cfg->configure_dp_tx(qmp);
 
 	/* Configure link rate, swing, etc. */
-	cfg->configure_dp_phy(qmp);
+	ret = cfg->configure_dp_phy(qmp);
 
 	mutex_unlock(&qmp->phy_mutex);
 
-	return 0;
+	return ret;
 }
 
 static int qmp_combo_dp_power_off(struct phy *phy)
-- 
2.7.4