From 3a61b080acee941a1b14b709b58ff9cde0b367bc Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Tue, 5 Sep 2017 22:10:35 +0200
Subject: musb: sunxi: switch to the device model
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The device model was implemented so far using a hook that needed to be
called from the board support, without DT support and only for the host.

Switch to probing both in peripheral and host mode through the DT.

Reviewed-by: Łukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/include/asm/arch-sunxi/usb_phy.h b/arch/arm/include/asm/arch-sunxi/usb_phy.h
index cef6c98..5a9cacb 100644
--- a/arch/arm/include/asm/arch-sunxi/usb_phy.h
+++ b/arch/arm/include/asm/arch-sunxi/usb_phy.h
@@ -19,10 +19,3 @@ void sunxi_usb_phy_power_off(int index);
 int sunxi_usb_phy_vbus_detect(int index);
 int sunxi_usb_phy_id_detect(int index);
 void sunxi_usb_phy_enable_squelch_detect(int index, int enable);
-
-/* Not really phy related, but we have to declare this somewhere ... */
-#if defined(CONFIG_USB_MUSB_HOST) || defined(CONFIG_USB_MUSB_GADGET)
-void sunxi_musb_board_init(void);
-#else
-#define sunxi_musb_board_init()
-#endif
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 70e0143..f922436 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -736,7 +736,6 @@ int misc_init_r(void)
 	if (ret)
 		return ret;
 #endif
-	sunxi_musb_board_init();
 
 	return 0;
 }
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index 5c1a902..7ee44ea 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -308,9 +308,6 @@ static struct musb_hdrc_platform_data musb_plat = {
 	.platform_ops	= &sunxi_musb_ops,
 };
 
-#ifdef CONFIG_USB_MUSB_HOST
-static int musb_usb_remove(struct udevice *dev);
-
 static int musb_usb_probe(struct udevice *dev)
 {
 	struct musb_host_data *host = dev_get_priv(dev);
@@ -319,16 +316,20 @@ static int musb_usb_probe(struct udevice *dev)
 
 	priv->desc_before_addr = true;
 
+#ifdef CONFIG_USB_MUSB_HOST
 	host->host = musb_init_controller(&musb_plat, NULL,
 					  (void *)SUNXI_USB0_BASE);
 	if (!host->host)
 		return -EIO;
 
 	ret = musb_lowlevel_init(host);
-	if (ret == 0)
-		printf("MUSB OTG\n");
-	else
-		musb_usb_remove(dev);
+	if (!ret)
+		printf("Allwinner mUSB OTG (Host)\n");
+#else
+	ret = musb_register(&musb_plat, NULL, (void *)SUNXI_USB0_BASE);
+	if (!ret)
+		printf("Allwinner mUSB OTG (Peripheral)\n");
+#endif
 
 	return ret;
 }
@@ -352,30 +353,27 @@ static int musb_usb_remove(struct udevice *dev)
 	return 0;
 }
 
-U_BOOT_DRIVER(usb_musb) = {
-	.name	= "sunxi-musb",
-	.id	= UCLASS_USB,
-	.probe = musb_usb_probe,
-	.remove = musb_usb_remove,
-	.ops	= &musb_usb_ops,
-	.platdata_auto_alloc_size = sizeof(struct usb_platdata),
-	.priv_auto_alloc_size = sizeof(struct musb_host_data),
+static const struct udevice_id sunxi_musb_ids[] = {
+	{ .compatible = "allwinner,sun4i-a10-musb" },
+	{ .compatible = "allwinner,sun6i-a31-musb" },
+	{ .compatible = "allwinner,sun8i-a33-musb" },
+	{ .compatible = "allwinner,sun8i-h3-musb" },
+	{ }
 };
-#endif
 
-void sunxi_musb_board_init(void)
-{
+U_BOOT_DRIVER(usb_musb) = {
+	.name		= "sunxi-musb",
 #ifdef CONFIG_USB_MUSB_HOST
-	struct udevice *dev;
-
-	/*
-	 * Bind the driver directly for now as musb linux kernel support is
-	 * still pending upstream so our dts files do not have the necessary
-	 * nodes yet. TODO: Remove this as soon as the dts nodes are in place
-	 * and bind by compatible instead.
-	 */
-	device_bind_driver(dm_root(), "sunxi-musb", "sunxi-musb", &dev);
+	.id		= UCLASS_USB,
 #else
-	musb_register(&musb_plat, NULL, (void *)SUNXI_USB0_BASE);
+	.id		= UCLASS_USB_DEV_GENERIC,
 #endif
-}
+	.of_match	= sunxi_musb_ids,
+	.probe		= musb_usb_probe,
+	.remove		= musb_usb_remove,
+#ifdef CONFIG_USB_MUSB_HOST
+	.ops		= &musb_usb_ops,
+#endif
+	.platdata_auto_alloc_size = sizeof(struct usb_platdata),
+	.priv_auto_alloc_size = sizeof(struct musb_host_data),
+};
-- 
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