Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB 3.5-rc1 changes from Greg Kroah-Hartman:
 "Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.

  It's touches a lot of different parts of the kernel, all USB drivers,
  due to some API cleanups (getting rid of the ancient err() macro) and
  some changes that are needed for USB 3.0 power management updates.

  There are also lots of new drivers, pimarily gadget, but others as
  well.  We deleted a staging driver, which was nice, and finally
  dropped the obsolete usbfs code, which will make Al happy to never
  have to touch that again.

  There were some build errors in the tree that linux-next found a few
  days ago, but those were fixed by the most recent changes (all were
  due to us not building with CONFIG_PM disabled.)

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits)
  xhci: Fix DIV_ROUND_UP compile error.
  xhci: Fix compile with CONFIG_USB_SUSPEND=n
  USB: Fix core compile with CONFIG_USB_SUSPEND=n
  brcm80211: Fix compile error for .disable_hub_initiated_lpm.
  Revert "USB: EHCI: work around bug in the Philips ISP1562 controller"
  MAINTAINERS: Add myself as maintainer to the USB PHY Layer
  USB: EHCI: fix command register configuration lost problem
  USB: Remove races in devio.c
  USB: ehci-platform: remove update_device
  USB: Disable hub-initiated LPM for comms devices.
  xhci: Add Intel U1/U2 timeout policy.
  xhci: Add infrastructure for host-specific LPM policies.
  USB: Add macros for interrupt endpoint types.
  xhci: Reserve one command for USB3 LPM disable.
  xhci: Some Evaluate Context commands must succeed.
  USB: Disable USB 3.0 LPM in critical sections.
  USB: Add support to enable/disable USB3 link states.
  USB: Allow drivers to disable hub-initiated LPM.
  USB: Calculate USB 3.0 exit latencies for LPM.
  USB: Refactor code to set LPM support flag.
  ...

Conflicts:
	arch/arm/mach-exynos/mach-nuri.c
	arch/arm/mach-exynos/mach-universal_c210.c
	drivers/net/wireless/ath/ath6kl/usb.c

1 files changed, 50 insertions, 123 deletions

diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 6618de1d881d..1e364ec962fb 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -22,6 +22,8 @@
 #include <linux/clk.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
+#include <linux/usb/isp1301.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -29,7 +31,6 @@
 
 #include <mach/platform.h>
 #include <mach/irqs.h>
-#include <asm/gpio.h>
 
 #define USB_CONFIG_BASE		0x31020000
 #define PWRMAN_BASE		0x40004000
@@ -38,7 +39,9 @@
 
 /* USB_CTRL bit defines */
 #define USB_SLAVE_HCLK_EN	(1 << 24)
+#define USB_DEV_NEED_CLK_EN	(1 << 22)
 #define USB_HOST_NEED_CLK_EN	(1 << 21)
+#define PAD_CONTROL_LAST_DRIVEN	(1 << 19)
 
 #define USB_OTG_CLK_CTRL	IO_ADDRESS(USB_CONFIG_BASE + 0xFF4)
 #define USB_OTG_CLK_STAT	IO_ADDRESS(USB_CONFIG_BASE + 0xFF8)
@@ -56,54 +59,6 @@
 #define TRANSPARENT_I2C_EN	(1 << 7)
 #define HOST_EN			(1 << 0)
 
-/* ISP1301 USB transceiver I2C registers */
-#define	ISP1301_MODE_CONTROL_1		0x04	/* u8 read, set, +1 clear */
-
-#define	MC1_SPEED_REG		(1 << 0)
-#define	MC1_SUSPEND_REG		(1 << 1)
-#define	MC1_DAT_SE0		(1 << 2)
-#define	MC1_TRANSPARENT		(1 << 3)
-#define	MC1_BDIS_ACON_EN	(1 << 4)
-#define	MC1_OE_INT_EN		(1 << 5)
-#define	MC1_UART_EN		(1 << 6)
-#define	MC1_MASK		0x7f
-
-#define	ISP1301_MODE_CONTROL_2		0x12	/* u8 read, set, +1 clear */
-
-#define	MC2_GLOBAL_PWR_DN	(1 << 0)
-#define	MC2_SPD_SUSP_CTRL	(1 << 1)
-#define	MC2_BI_DI		(1 << 2)
-#define	MC2_TRANSP_BDIR0	(1 << 3)
-#define	MC2_TRANSP_BDIR1	(1 << 4)
-#define	MC2_AUDIO_EN		(1 << 5)
-#define	MC2_PSW_EN		(1 << 6)
-#define	MC2_EN2V7		(1 << 7)
-
-#define	ISP1301_OTG_CONTROL_1		0x06	/* u8 read, set, +1 clear */
-#	define	OTG1_DP_PULLUP		(1 << 0)
-#	define	OTG1_DM_PULLUP		(1 << 1)
-#	define	OTG1_DP_PULLDOWN	(1 << 2)
-#	define	OTG1_DM_PULLDOWN	(1 << 3)
-#	define	OTG1_ID_PULLDOWN	(1 << 4)
-#	define	OTG1_VBUS_DRV		(1 << 5)
-#	define	OTG1_VBUS_DISCHRG	(1 << 6)
-#	define	OTG1_VBUS_CHRG		(1 << 7)
-#define	ISP1301_OTG_STATUS		0x10	/* u8 readonly */
-#	define	OTG_B_SESS_END		(1 << 6)
-#	define	OTG_B_SESS_VLD		(1 << 7)
-
-#define ISP1301_I2C_ADDR 0x2C
-
-#define ISP1301_I2C_MODE_CONTROL_1 0x4
-#define ISP1301_I2C_MODE_CONTROL_2 0x12
-#define ISP1301_I2C_OTG_CONTROL_1 0x6
-#define ISP1301_I2C_OTG_CONTROL_2 0x10
-#define ISP1301_I2C_INTERRUPT_SOURCE 0x8
-#define ISP1301_I2C_INTERRUPT_LATCH 0xA
-#define ISP1301_I2C_INTERRUPT_FALLING 0xC
-#define ISP1301_I2C_INTERRUPT_RISING 0xE
-#define ISP1301_I2C_REG_CLEAR_ADDR 1
-
 /* On LPC32xx, those are undefined */
 #ifndef start_int_set_falling_edge
 #define start_int_set_falling_edge(irq)
@@ -113,42 +68,12 @@
 #define start_int_umask(irq)
 #endif
 
-static struct i2c_driver isp1301_driver;
 static struct i2c_client *isp1301_i2c_client;
 
 extern int usb_disabled(void);
-extern int ocpi_enable(void);
 
 static struct clk *usb_clk;
 
-static const unsigned short normal_i2c[] =
-    { ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END };
-
-static int isp1301_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	return 0;
-}
-
-static int isp1301_remove(struct i2c_client *client)
-{
-	return 0;
-}
-
-static const struct i2c_device_id isp1301_id[] = {
-	{ "isp1301_nxp", 0 },
-	{ }
-};
-
-static struct i2c_driver isp1301_driver = {
-	.driver = {
-		.name = "isp1301_nxp",
-	},
-	.probe = isp1301_probe,
-	.remove = isp1301_remove,
-	.id_table = isp1301_id,
-};
-
 static void isp1301_configure_pnx4008(void)
 {
 	/* PNX4008 only supports DAT_SE0 USB mode */
@@ -220,7 +145,7 @@ static void isp1301_configure_lpc32xx(void)
 		ISP1301_I2C_INTERRUPT_RISING | ISP1301_I2C_REG_CLEAR_ADDR, ~0);
 
 	/* Enable usb_need_clk clock after transceiver is initialized */
-	__raw_writel((__raw_readl(USB_CTRL) | (1 << 22)), USB_CTRL);
+	__raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);
 
 	printk(KERN_INFO "ISP1301 Vendor ID  : 0x%04x\n",
 	      i2c_smbus_read_word_data(isp1301_i2c_client, 0x00));
@@ -372,65 +297,55 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 	struct usb_hcd *hcd = 0;
 	struct ohci_hcd *ohci;
 	const struct hc_driver *driver = &ohci_nxp_hc_driver;
-	struct i2c_adapter *i2c_adap;
-	struct i2c_board_info i2c_info;
-
+	struct resource *res;
 	int ret = 0, irq;
+	struct device_node *isp1301_node;
 
-	dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name);
-	if (usb_disabled()) {
-		err("USB is disabled");
-		ret = -ENODEV;
-		goto out;
+	if (pdev->dev.of_node) {
+		isp1301_node = of_parse_phandle(pdev->dev.of_node,
+						"transceiver", 0);
+	} else {
+		isp1301_node = NULL;
 	}
 
-	if (pdev->num_resources != 2
-	    || pdev->resource[0].flags != IORESOURCE_MEM
-	    || pdev->resource[1].flags != IORESOURCE_IRQ) {
-		err("Invalid resource configuration");
-		ret = -ENODEV;
+	isp1301_i2c_client = isp1301_get_client(isp1301_node);
+	if (!isp1301_i2c_client) {
+		ret = -EPROBE_DEFER;
 		goto out;
 	}
 
-	/* Enable AHB slave USB clock, needed for further USB clock control */
-	__raw_writel(USB_SLAVE_HCLK_EN | (1 << 19), USB_CTRL);
+	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
 
-	ret = i2c_add_driver(&isp1301_driver);
-	if (ret < 0) {
-		err("failed to add ISP1301 driver");
-		goto out;
-	}
-	i2c_adap = i2c_get_adapter(2);
-	memset(&i2c_info, 0, sizeof(struct i2c_board_info));
-	strlcpy(i2c_info.type, "isp1301_nxp", I2C_NAME_SIZE);
-	isp1301_i2c_client = i2c_new_probed_device(i2c_adap, &i2c_info,
-						   normal_i2c, NULL);
-	i2c_put_adapter(i2c_adap);
-	if (!isp1301_i2c_client) {
-		err("failed to connect I2C to ISP1301 USB Transceiver");
+	dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name);
+	if (usb_disabled()) {
+		dev_err(&pdev->dev, "USB is disabled\n");
 		ret = -ENODEV;
-		goto out_i2c_driver;
+		goto out;
 	}
 
+	/* Enable AHB slave USB clock, needed for further USB clock control */
+	__raw_writel(USB_SLAVE_HCLK_EN | PAD_CONTROL_LAST_DRIVEN, USB_CTRL);
+
 	isp1301_configure();
 
 	/* Enable USB PLL */
 	usb_clk = clk_get(&pdev->dev, "ck_pll5");
 	if (IS_ERR(usb_clk)) {
-		err("failed to acquire USB PLL");
+		dev_err(&pdev->dev, "failed to acquire USB PLL\n");
 		ret = PTR_ERR(usb_clk);
 		goto out1;
 	}
 
 	ret = clk_enable(usb_clk);
 	if (ret < 0) {
-		err("failed to start USB PLL");
+		dev_err(&pdev->dev, "failed to start USB PLL\n");
 		goto out2;
 	}
 
 	ret = clk_set_rate(usb_clk, 48000);
 	if (ret < 0) {
-		err("failed to set USB clock rate");
+		dev_err(&pdev->dev, "failed to set USB clock rate\n");
 		goto out3;
 	}
 
@@ -442,9 +357,9 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 	while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) !=
 	       USB_CLOCK_MASK) ;
 
-	hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev));
+	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
 	if (!hcd) {
-		err("Failed to allocate HC buffer");
+		dev_err(&pdev->dev, "Failed to allocate HC buffer\n");
 		ret = -ENOMEM;
 		goto out3;
 	}
@@ -452,14 +367,21 @@ static int __devinit usb_hcd_nxp_probe(struct platform_device *pdev)
 	/* Set all USB bits in the Start Enable register */
 	nxp_set_usb_bits();
 
-	hcd->rsrc_start = pdev->resource[0].start;
-	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
-	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
-		dev_dbg(&pdev->dev, "request_mem_region failed\n");
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "Failed to get MEM resource\n");
+		ret =  -ENOMEM;
+		goto out4;
+	}
+
+	hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
+	if (!hcd->regs) {
+		dev_err(&pdev->dev, "Failed to devm_request_and_ioremap\n");
 		ret =  -ENOMEM;
 		goto out4;
 	}
-	hcd->regs = (void __iomem *)pdev->resource[0].start;
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -486,10 +408,7 @@ out3:
 out2:
 	clk_put(usb_clk);
 out1:
-	i2c_unregister_device(isp1301_i2c_client);
 	isp1301_i2c_client = NULL;
-out_i2c_driver:
-	i2c_del_driver(&isp1301_driver);
 out:
 	return ret;
 }
@@ -507,7 +426,6 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
 	clk_put(usb_clk);
 	i2c_unregister_device(isp1301_i2c_client);
 	isp1301_i2c_client = NULL;
-	i2c_del_driver(&isp1301_driver);
 
 	platform_set_drvdata(pdev, NULL);
 
@@ -517,10 +435,19 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
 /* work with hotplug and coldplug */
 MODULE_ALIAS("platform:usb-ohci");
 
+#ifdef CONFIG_OF
+static const struct of_device_id usb_hcd_nxp_match[] = {
+	{ .compatible = "nxp,ohci-nxp" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match);
+#endif
+
 static struct platform_driver usb_hcd_nxp_driver = {
 	.driver = {
 		.name = "usb-ohci",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(usb_hcd_nxp_match),
 	},
 	.probe = usb_hcd_nxp_probe,
 	.remove = usb_hcd_nxp_remove,