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: 6cdef2738db0 ("clk: qcom: Add Q6SSTOP clock controller for QCS404")
Cc: stable@xxxxxxxxxxxxxxx # 5.5
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
drivers/clk/qcom/q6sstop-qcs404.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/qcom/q6sstop-qcs404.c b/drivers/clk/qcom/q6sstop-qcs404.c
index 780074e05841..26e2d63614ac 100644
--- a/drivers/clk/qcom/q6sstop-qcs404.c
+++ b/drivers/clk/qcom/q6sstop-qcs404.c
@@ -174,21 +174,32 @@ static int q6sstopcc_qcs404_probe(struct platform_device *pdev)
return ret;
}
+ ret = pm_runtime_resume_and_get(&pdev->dev);
+ if (ret)
+ return ret;
+
q6sstop_regmap_config.name = "q6sstop_tcsr";
desc = &tcsr_qcs404_desc;
ret = qcom_cc_probe_by_index(pdev, 1, desc);
if (ret)
- return ret;
+ goto err_put_rpm;
q6sstop_regmap_config.name = "q6sstop_cc";
desc = &q6sstop_qcs404_desc;
ret = qcom_cc_probe_by_index(pdev, 0, desc);
if (ret)
- 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 q6sstopcc_pm_ops = {
--
2.41.0
