From: Johan Hovold <johan+linaro@kernel.org>
To: Kishon Vijay Abraham I <kishon@ti.com>, Vinod Koul <vkoul@kernel.org>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org,
linux-kernel@vger.kernel.org,
Johan Hovold <johan+linaro@kernel.org>,
Evan Green <evgreen@chromium.org>
Subject: [PATCH 2/2] phy: qcom-qmp: fix pipe-clock imbalance on power-on failure
Date: Wed, 20 Apr 2022 17:23:31 +0200 [thread overview]
Message-ID: <20220420152331.5527-3-johan+linaro@kernel.org> (raw)
In-Reply-To: <20220420152331.5527-1-johan+linaro@kernel.org>
Make sure to disable the pipe clock also if ufs-reset deassertion fails
during power on.
Note that the ufs-reset is asserted in qcom_qmp_phy_com_exit().
Fixes: c9b589791fc1 ("phy: qcom: Utilize UFS reset controller")
Cc: Evan Green <evgreen@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
drivers/phy/qualcomm/phy-qcom-qmp.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 8c2300bfe489..7d2d1ab061f7 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -5375,14 +5375,14 @@ static int qcom_qmp_phy_power_on(struct phy *phy)
if (ret) {
dev_err(qmp->dev, "lane%d reset deassert failed\n",
qphy->index);
- goto err_lane_rst;
+ return ret;
}
}
ret = clk_prepare_enable(qphy->pipe_clk);
if (ret) {
dev_err(qmp->dev, "pipe_clk enable failed err=%d\n", ret);
- goto err_clk_enable;
+ goto err_reset_lane;
}
/* Tx, Rx, and PCS configurations */
@@ -5433,7 +5433,7 @@ static int qcom_qmp_phy_power_on(struct phy *phy)
ret = reset_control_deassert(qmp->ufs_reset);
if (ret)
- goto err_lane_rst;
+ goto err_disable_pipe_clk;
qcom_qmp_phy_configure(pcs_misc, cfg->regs, cfg->pcs_misc_tbl,
cfg->pcs_misc_tbl_num);
@@ -5472,17 +5472,17 @@ static int qcom_qmp_phy_power_on(struct phy *phy)
PHY_INIT_COMPLETE_TIMEOUT);
if (ret) {
dev_err(qmp->dev, "phy initialization timed-out\n");
- goto err_pcs_ready;
+ goto err_disable_pipe_clk;
}
}
return 0;
-err_pcs_ready:
+err_disable_pipe_clk:
clk_disable_unprepare(qphy->pipe_clk);
-err_clk_enable:
+err_reset_lane:
if (cfg->has_lane_rst)
reset_control_assert(qphy->lane_rst);
-err_lane_rst:
+
return ret;
}
--
2.35.1
next prev parent reply other threads:[~2022-04-20 15:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-20 15:23 [PATCH 0/2] phy: qcom-qmp: pipe clock fixes Johan Hovold
2022-04-20 15:23 ` [PATCH 1/2] phy: qcom-qmp: fix phy-descriptor kernel-doc typo Johan Hovold
2022-05-02 10:10 ` Vinod Koul
2022-04-20 15:23 ` Johan Hovold [this message]
2022-05-02 10:09 ` [PATCH 2/2] phy: qcom-qmp: fix pipe-clock imbalance on power-on failure Vinod Koul
2022-05-02 10:27 ` Johan Hovold
2022-05-02 12:01 ` Vinod Koul
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