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Diffstat (limited to 'drivers/spi/atmel-quadspi.c')
-rw-r--r--drivers/spi/atmel-quadspi.c36
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c
index f4632cb07495..3d1252566134 100644
--- a/drivers/spi/atmel-quadspi.c
+++ b/drivers/spi/atmel-quadspi.c
@@ -700,25 +700,33 @@ disable_pclk:
return err;
}
-static int atmel_qspi_remove(struct platform_device *pdev)
+static void atmel_qspi_remove(struct platform_device *pdev)
{
struct spi_controller *ctrl = platform_get_drvdata(pdev);
struct atmel_qspi *aq = spi_controller_get_devdata(ctrl);
int ret;
- ret = pm_runtime_resume_and_get(&pdev->dev);
- if (ret < 0)
- return ret;
-
spi_unregister_controller(ctrl);
- atmel_qspi_write(QSPI_CR_QSPIDIS, aq, QSPI_CR);
+
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret >= 0) {
+ atmel_qspi_write(QSPI_CR_QSPIDIS, aq, QSPI_CR);
+ clk_disable(aq->qspick);
+ clk_disable(aq->pclk);
+ } else {
+ /*
+ * atmel_qspi_runtime_{suspend,resume} just disable and enable
+ * the two clks respectively. So after resume failed these are
+ * off, and we skip hardware access and disabling these clks again.
+ */
+ dev_warn(&pdev->dev, "Failed to resume device on remove\n");
+ }
+
+ clk_unprepare(aq->qspick);
+ clk_unprepare(aq->pclk);
pm_runtime_disable(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
-
- clk_disable_unprepare(aq->qspick);
- clk_disable_unprepare(aq->pclk);
- return 0;
}
static int __maybe_unused atmel_qspi_suspend(struct device *dev)
@@ -786,7 +794,11 @@ static int __maybe_unused atmel_qspi_runtime_resume(struct device *dev)
if (ret)
return ret;
- return clk_enable(aq->qspick);
+ ret = clk_enable(aq->qspick);
+ if (ret)
+ clk_disable(aq->pclk);
+
+ return ret;
}
static const struct dev_pm_ops __maybe_unused atmel_qspi_pm_ops = {
@@ -823,7 +835,7 @@ static struct platform_driver atmel_qspi_driver = {
.pm = pm_ptr(&atmel_qspi_pm_ops),
},
.probe = atmel_qspi_probe,
- .remove = atmel_qspi_remove,
+ .remove_new = atmel_qspi_remove,
};
module_platform_driver(atmel_qspi_driver);