From 2f4233ee13fb89b70e56b2df7789e2a3d131c85e Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 31 Jul 2017 14:49:25 +0900 Subject: bus: uniphier-system-bus: set up registers when resuming When resuming, set up registers that have been lost in the sleep state. Signed-off-by: Masahiro Yamada Signed-off-by: Arnd Bergmann --- drivers/bus/uniphier-system-bus.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/bus/uniphier-system-bus.c') diff --git a/drivers/bus/uniphier-system-bus.c b/drivers/bus/uniphier-system-bus.c index 1e6e0269edcc..f76be6bd6eb3 100644 --- a/drivers/bus/uniphier-system-bus.c +++ b/drivers/bus/uniphier-system-bus.c @@ -256,10 +256,23 @@ static int uniphier_system_bus_probe(struct platform_device *pdev) uniphier_system_bus_set_reg(priv); + platform_set_drvdata(pdev, priv); + /* Now, the bus is configured. Populate platform_devices below it */ return of_platform_default_populate(dev->of_node, NULL, dev); } +static int __maybe_unused uniphier_system_bus_resume(struct device *dev) +{ + uniphier_system_bus_set_reg(dev_get_drvdata(dev)); + + return 0; +} + +static const struct dev_pm_ops uniphier_system_bus_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(NULL, uniphier_system_bus_resume) +}; + static const struct of_device_id uniphier_system_bus_match[] = { { .compatible = "socionext,uniphier-system-bus" }, { /* sentinel */ } @@ -271,6 +284,7 @@ static struct platform_driver uniphier_system_bus_driver = { .driver = { .name = "uniphier-system-bus", .of_match_table = uniphier_system_bus_match, + .pm = &uniphier_system_bus_pm_ops, }, }; module_platform_driver(uniphier_system_bus_driver); -- cgit v1.2.3