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path: root/drivers/mtd/spi-nor/atmel-quadspi.c
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Diffstat (limited to 'drivers/mtd/spi-nor/atmel-quadspi.c')
-rw-r--r--drivers/mtd/spi-nor/atmel-quadspi.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/mtd/spi-nor/atmel-quadspi.c b/drivers/mtd/spi-nor/atmel-quadspi.c
index 6c5708bacad8..820048726b4f 100644
--- a/drivers/mtd/spi-nor/atmel-quadspi.c
+++ b/drivers/mtd/spi-nor/atmel-quadspi.c
@@ -34,7 +34,7 @@
#include <linux/of.h>
#include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
/* QSPI register offsets */
#define QSPI_CR 0x0000 /* Control Register */
@@ -737,6 +737,26 @@ static int atmel_qspi_remove(struct platform_device *pdev)
return 0;
}
+static int __maybe_unused atmel_qspi_suspend(struct device *dev)
+{
+ struct atmel_qspi *aq = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(aq->clk);
+
+ return 0;
+}
+
+static int __maybe_unused atmel_qspi_resume(struct device *dev)
+{
+ struct atmel_qspi *aq = dev_get_drvdata(dev);
+
+ clk_prepare_enable(aq->clk);
+
+ return atmel_qspi_init(aq);
+}
+
+static SIMPLE_DEV_PM_OPS(atmel_qspi_pm_ops, atmel_qspi_suspend,
+ atmel_qspi_resume);
static const struct of_device_id atmel_qspi_dt_ids[] = {
{ .compatible = "atmel,sama5d2-qspi" },
@@ -749,6 +769,7 @@ static struct platform_driver atmel_qspi_driver = {
.driver = {
.name = "atmel_qspi",
.of_match_table = atmel_qspi_dt_ids,
+ .pm = &atmel_qspi_pm_ops,
},
.probe = atmel_qspi_probe,
.remove = atmel_qspi_remove,