[PATCH] spi: rzv2h-rspi: Add suspend/resume support

[Tommaso Merciai]

Add suspend/resume support to the rzv2h-rspi driver by implementing
suspend and resume callbacks that delegate to spi_controller_suspend()
and spi_controller_resume() respectively.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@xxxxxxxxxxxxxx>
---
 drivers/spi/spi-rzv2h-rspi.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/spi/spi-rzv2h-rspi.c b/drivers/spi/spi-rzv2h-rspi.c
index 1655efda7d20..694e5305c638 100644
--- a/drivers/spi/spi-rzv2h-rspi.c
+++ b/drivers/spi/spi-rzv2h-rspi.c
@@ -802,6 +802,23 @@ static int rzv2h_rspi_probe(struct platform_device *pdev)
 	return ret;
 }
 
+static int rzv2h_rspi_suspend(struct device *dev)
+{
+	struct rzv2h_rspi_priv *rspi = dev_get_drvdata(dev);
+
+	return spi_controller_suspend(rspi->controller);
+}
+
+static int rzv2h_rspi_resume(struct device *dev)
+{
+	struct rzv2h_rspi_priv *rspi = dev_get_drvdata(dev);
+
+	return spi_controller_resume(rspi->controller);
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(rzv2h_rspi_pm_ops, rzv2h_rspi_suspend,
+				rzv2h_rspi_resume);
+
 static const struct rzv2h_rspi_info rzv2h_info = {
 	.find_tclk_rate = rzv2h_rspi_find_rate_fixed,
 	.tclk_name = "tclk",
@@ -837,6 +854,7 @@ static struct platform_driver rzv2h_rspi_drv = {
 	.driver = {
 		.name = "rzv2h_rspi",
 		.of_match_table = rzv2h_rspi_match,
+		.pm = pm_sleep_ptr(&rzv2h_rspi_pm_ops),
 	},
 };
 module_platform_driver(rzv2h_rspi_drv);
-- 
2.54.0