From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Fri, 29 Sep 2017 11:45:00 +0000 (+0900)
Subject: usb: gadget: udc: renesas_usb3: Add suspend/resume functions
X-Git-Tag: v5.15~10044^2~117^2~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=90d588642a7ff598533f68c2f56ee64657a40186;p=platform%2Fkernel%2Flinux-starfive.git

usb: gadget: udc: renesas_usb3: Add suspend/resume functions

This patch adds support suspend/resume functions

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
[shimoda: add the commit log]
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
---

diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index 740497c..75afc4c 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -2655,11 +2655,45 @@ err_alloc_prd:
 	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int renesas_usb3_suspend(struct device *dev)
+{
+	struct renesas_usb3 *usb3 = dev_get_drvdata(dev);
+
+	/* Not started */
+	if (!usb3->driver)
+		return 0;
+
+	renesas_usb3_stop_controller(usb3);
+	pm_runtime_put(dev);
+
+	return 0;
+}
+
+static int renesas_usb3_resume(struct device *dev)
+{
+	struct renesas_usb3 *usb3 = dev_get_drvdata(dev);
+
+	/* Not started */
+	if (!usb3->driver)
+		return 0;
+
+	pm_runtime_get_sync(dev);
+	renesas_usb3_init_controller(usb3);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(renesas_usb3_pm_ops, renesas_usb3_suspend,
+			renesas_usb3_resume);
+
 static struct platform_driver renesas_usb3_driver = {
 	.probe		= renesas_usb3_probe,
 	.remove		= renesas_usb3_remove,
 	.driver		= {
 		.name =	(char *)udc_name,
+		.pm		= &renesas_usb3_pm_ops,
 		.of_match_table = of_match_ptr(usb3_of_match),
 	},
 };