[PATCH 3/4] mfd: rk8xx-spi: add system sleep PM ops

[Jakob Unterwurzacher]

From: Jakob Unterwurzacher <jakob.unterwurzacher at cherry.de>

Unlike rk8xx-i2c, the SPI driver does not hook up rk8xx_suspend() and
rk8xx_resume(), so the RK806 never gets its system sleep handling, e.g.
keeping its interrupt disabled while the SPI controller is suspended.

Add the same PM ops as rk8xx-i2c.

Fixes: 210f418f8ace ("mfd: rk8xx: Add rk806 support")
---
 drivers/mfd/rk8xx-spi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mfd/rk8xx-spi.c b/drivers/mfd/rk8xx-spi.c
index bb85fe60518f6..a0b7d7a058108 100644
--- a/drivers/mfd/rk8xx-spi.c
+++ b/drivers/mfd/rk8xx-spi.c
@@ -97,6 +97,8 @@ static int rk8xx_spi_probe(struct spi_device *spi)
 	return rk8xx_probe(&spi->dev, RK806_ID, spi->irq, regmap);
 }
 
+static DEFINE_SIMPLE_DEV_PM_OPS(rk8xx_spi_pm_ops, rk8xx_suspend, rk8xx_resume);
+
 static const struct of_device_id rk8xx_spi_of_match[] = {
 	{ .compatible = "rockchip,rk806", },
 	{ }
@@ -113,6 +115,7 @@ static struct spi_driver rk8xx_spi_driver = {
 	.driver		= {
 		.name	= "rk8xx-spi",
 		.of_match_table = rk8xx_spi_of_match,
+		.pm = pm_sleep_ptr(&rk8xx_spi_pm_ops),
 	},
 	.probe		= rk8xx_spi_probe,
 	.id_table	= rk8xx_spi_id_table,

-- 
2.47.3