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: 8def929c4097 ("clk: qcom: Add modem clock controller driver for SC7180")
Cc: stable@xxxxxxxxxxxxxxx # 5.7
Cc: Taniya Das <quic_tdas@xxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
drivers/clk/qcom/mss-sc7180.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/qcom/mss-sc7180.c b/drivers/clk/qcom/mss-sc7180.c
index 5a1407440662..d106bc65470e 100644
--- a/drivers/clk/qcom/mss-sc7180.c
+++ b/drivers/clk/qcom/mss-sc7180.c
@@ -87,11 +87,22 @@ static int mss_sc7180_probe(struct platform_device *pdev)
return ret;
}
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret)
+ return ret;
+
ret = qcom_cc_probe(pdev, &mss_sc7180_desc);
if (ret < 0)
- return ret;
+ 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 = {
--
2.41.0
