diff options
| -rw-r--r-- | drivers/usb/gadget/udc/bdc/bdc.h | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/udc/bdc/bdc_core.c | 36 |
2 files changed, 37 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/bdc/bdc.h b/drivers/usb/gadget/udc/bdc/bdc.h index f657a4e81d05..67c5f23a2720 100644 --- a/drivers/usb/gadget/udc/bdc/bdc.h +++ b/drivers/usb/gadget/udc/bdc/bdc.h @@ -454,6 +454,7 @@ struct bdc { * Func Wake packet every 2.5 secs. Refer to USB3 spec section 8.5.6.4 */ struct delayed_work func_wake_notify; + struct clk *clk; }; static inline u32 bdc_readl(void __iomem *base, u32 offset) diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c index bc0729b84948..2690b6fc4f6f 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_core.c +++ b/drivers/usb/gadget/udc/bdc/bdc_core.c @@ -473,6 +473,8 @@ static int bdc_probe(struct platform_device *pdev) if (!bdc) return -ENOMEM; + bdc->clk = clk; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); bdc->regs = devm_ioremap_resource(dev, res); if (IS_ERR(bdc->regs)) { @@ -529,10 +531,43 @@ static int bdc_remove(struct platform_device *pdev) dev_dbg(bdc->dev, "%s ()\n", __func__); bdc_udc_exit(bdc); bdc_hw_exit(bdc); + clk_disable_unprepare(bdc->clk); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int bdc_suspend(struct device *dev) +{ + struct bdc *bdc = dev_get_drvdata(dev); + + clk_disable_unprepare(bdc->clk); + return 0; +} + +static int bdc_resume(struct device *dev) +{ + struct bdc *bdc = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(bdc->clk); + if (ret) { + dev_err(bdc->dev, "err enabling the clock\n"); + return ret; + } + ret = bdc_reinit(bdc); + if (ret) { + dev_err(bdc->dev, "err in bdc reinit\n"); + return ret; + } return 0; } +#endif /* CONFIG_PM_SLEEP */ + +static SIMPLE_DEV_PM_OPS(bdc_pm_ops, bdc_suspend, + bdc_resume); + static const struct of_device_id bdc_of_match[] = { { .compatible = "brcm,bdc-v0.16" }, { .compatible = "brcm,bdc" }, @@ -543,6 +578,7 @@ static struct platform_driver bdc_driver = { .driver = { .name = BRCM_BDC_NAME, .owner = THIS_MODULE, + .pm = &bdc_pm_ops, .of_match_table = bdc_of_match, }, .probe = bdc_probe, |