diff options
| -rw-r--r-- | drivers/bus/sunxi-rsb.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c index 3f290da45619..efd222f36cdc 100644 --- a/drivers/bus/sunxi-rsb.c +++ b/drivers/bus/sunxi-rsb.c @@ -45,6 +45,7 @@ #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/pm.h> #include <linux/regmap.h> #include <linux/reset.h> #include <linux/slab.h> @@ -675,6 +676,22 @@ static void sunxi_rsb_hw_exit(struct sunxi_rsb *rsb) clk_disable_unprepare(rsb->clk); } +static int __maybe_unused sunxi_rsb_suspend(struct device *dev) +{ + struct sunxi_rsb *rsb = dev_get_drvdata(dev); + + sunxi_rsb_hw_exit(rsb); + + return 0; +} + +static int __maybe_unused sunxi_rsb_resume(struct device *dev) +{ + struct sunxi_rsb *rsb = dev_get_drvdata(dev); + + return sunxi_rsb_hw_init(rsb); +} + static int sunxi_rsb_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -756,6 +773,17 @@ static int sunxi_rsb_remove(struct platform_device *pdev) return 0; } +static void sunxi_rsb_shutdown(struct platform_device *pdev) +{ + struct sunxi_rsb *rsb = platform_get_drvdata(pdev); + + sunxi_rsb_hw_exit(rsb); +} + +static const struct dev_pm_ops sunxi_rsb_dev_pm_ops = { + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(sunxi_rsb_suspend, sunxi_rsb_resume) +}; + static const struct of_device_id sunxi_rsb_of_match_table[] = { { .compatible = "allwinner,sun8i-a23-rsb" }, {} @@ -765,9 +793,11 @@ MODULE_DEVICE_TABLE(of, sunxi_rsb_of_match_table); static struct platform_driver sunxi_rsb_driver = { .probe = sunxi_rsb_probe, .remove = sunxi_rsb_remove, + .shutdown = sunxi_rsb_shutdown, .driver = { .name = RSB_CTRL_NAME, .of_match_table = sunxi_rsb_of_match_table, + .pm = &sunxi_rsb_dev_pm_ops, }, }; |