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clk: qcom: mss-sc7180: fix missing resume during probe 

commit e2349da0fa upstream.

Drivers that enable runtime PM must make sure that the controller is
runtime resumed before accessing its registers to prevent the power
domain from being disabled.

Fixes: 8def929c40 ("clk: qcom: Add modem clock controller driver for SC7180")
Cc: stable@vger.kernel.org      # 5.7
Cc: Taniya Das <quic_tdas@quicinc.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20230718132902.21430-8-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2023-07-18 15:29:01 +02:00 committed by Greg Kroah-Hartman
parent 017e60a215
commit 1bb9546c7a
1 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/clk/qcom/mss-sc7180.c
View File

@ -87,11 +87,22 @@ static int mss_sc7180_probe(struct platform_device *pdev)
return ret;
}
ret = qcom_cc_probe(pdev, &mss_sc7180_desc);
if (ret < 0)
ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret)
return ret;
ret = qcom_cc_probe(pdev, &mss_sc7180_desc);
if (ret < 0)
goto err_put_rpm;
pm_runtime_put(&pdev->dev);
return 0;
err_put_rpm:
pm_runtime_put_sync(&pdev->dev);
return ret;
}
static const struct dev_pm_ops mss_sc7180_pm_ops = {