diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c index 6d122772a970..3b209104f648 100644 --- a/drivers/usb/misc/onboard_usb_hub.c +++ b/drivers/usb/misc/onboard_usb_hub.c @@ -5,6 +5,7 @@ * Copyright (c) 2022, Google LLC */ +#include #include #include #include @@ -61,12 +62,19 @@ struct onboard_hub { bool going_away; struct list_head udev_list; struct mutex lock; + struct clk *clk; }; static int onboard_hub_power_on(struct onboard_hub *hub) { int err; + err = clk_prepare_enable(hub->clk); + if (err) { + dev_err(hub->dev, "failed to enable clock: %pe\n", ERR_PTR(err)); + return err; + } + err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies); if (err) { dev_err(hub->dev, "failed to enable supplies: %pe\n", ERR_PTR(err)); @@ -93,6 +101,8 @@ static int onboard_hub_power_off(struct onboard_hub *hub) return err; } + clk_disable_unprepare(hub->clk); + hub->is_powered_on = false; return 0; @@ -267,6 +277,10 @@ static int onboard_hub_probe(struct platform_device *pdev) return err; } + hub->clk = devm_clk_get_optional(dev, NULL); + if (IS_ERR(hub->clk)) + return dev_err_probe(dev, PTR_ERR(hub->clk), "failed to get clock\n"); + hub->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(hub->reset_gpio))