Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: More device tree support updates" from Olof Johansson:
 "This branch contains a number of updates for device tree support on
  several ARM platforms, in particular:

   * AT91 continues the device tree conversion adding support for a
     number of on-chip drivers and other functionality
   * ux500 adds probing of some of the core SoC blocks through device
     tree
   * Initial device tree support for ST SPEAr600 platforms
   * kirkwood continues the conversion to device-tree probing"

Manually merge arch/arm/mach-ux500/Kconfig due to MACH_U8500 rename, and
drivers/usb/gadget/at91_udc.c due to header file include cleanups.

Also do an "evil merge" for the MACH_U8500 config option rename that the
affected RMI4 touchscreen driver in staging.  It's called MACH_MOP500
now, and it was missed during previous merges.

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  ARM: SPEAr600: Add device-tree support to SPEAr600 boards
  ARM: ux500: Provide local timer support for Device Tree
  ARM: ux500: Enable PL022 SSP Controller in Device Tree
  ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree
  ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree
  ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree
  ARM: ux500: db8500: list most devices in the snowball device tree
  ARM: ux500: split dts file for snowball into generic part
  ARM: ux500: combine the board init functions for DT boot
  ARM: ux500: Initial Device Tree support for Snowball
  ARM: ux500: CONFIG: Enable Device Tree support for future endeavours
  ARM: kirkwood: use devicetree for rtc-mv
  ARM: kirkwood: rtc-mv devicetree bindings
  ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0
  ARM: kirkwood: fdt: facilitate new boards during fdt migration
  ARM: kirkwood: fdt: absorb kirkwood_init()
  ARM: kirkwood: fdt: use mrvl ticker symbol
  ARM: orion: wdt: use resource vice direct access
  ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data.
  ARM: orion: spi: remove enable_clock_fix which is not used
  ...

2 files changed, 123 insertions, 2 deletions

diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index a5a3ef1f0096..19f318ababa2 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -13,6 +13,7 @@
 
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/of_platform.h>
 
 /* interface and function clocks */
 static struct clk *iclk, *fclk;
@@ -115,6 +116,8 @@ static const struct hc_driver ehci_atmel_hc_driver = {
         .clear_tt_buffer_complete       = ehci_clear_tt_buffer_complete,
 };
 
+static u64 at91_ehci_dma_mask = DMA_BIT_MASK(32);
+
 static int __devinit ehci_atmel_drv_probe(struct platform_device *pdev)
 {
         struct usb_hcd *hcd;
@@ -137,6 +140,13 @@ static int __devinit ehci_atmel_drv_probe(struct platform_device *pdev)
                 goto fail_create_hcd;
         }
 
+        /* Right now device-tree probed devices don't get dma_mask set.
+         * Since shared usb code relies on it, set it here for now.
+         * Once we have dma capability bindings this can go away.
+         */
+        if (!pdev->dev.dma_mask)
+                pdev->dev.dma_mask = &at91_ehci_dma_mask;
+
         hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
         if (!hcd) {
                 retval = -ENOMEM;
@@ -225,9 +235,21 @@ static int __devexit ehci_atmel_drv_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_ehci_dt_ids[] = {
+        { .compatible = "atmel,at91sam9g45-ehci" },
+        { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, atmel_ehci_dt_ids);
+#endif
+
 static struct platform_driver ehci_atmel_driver = {
         .probe          = ehci_atmel_drv_probe,
         .remove         = __devexit_p(ehci_atmel_drv_remove),
         .shutdown       = usb_hcd_platform_shutdown,
-        .driver.name    = "atmel-ehci",
+        .driver         = {
+                .name   = "atmel-ehci",
+                .of_match_table = of_match_ptr(atmel_ehci_dt_ids),
+        },
 };
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 8e855eb0bf89..db8963f5fbce 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -14,6 +14,8 @@
 
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 
 #include <mach/hardware.h>
 #include <asm/gpio.h>
@@ -477,13 +479,109 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
         return IRQ_HANDLED;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id at91_ohci_dt_ids[] = {
+        { .compatible = "atmel,at91rm9200-ohci" },
+        { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
+
+static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32);
+
+static int __devinit ohci_at91_of_init(struct platform_device *pdev)
+{
+        struct device_node *np = pdev->dev.of_node;
+        int i, ret, gpio;
+        enum of_gpio_flags flags;
+        struct at91_usbh_data   *pdata;
+        u32 ports;
+
+        if (!np)
+                return 0;
+
+        /* Right now device-tree probed devices don't get dma_mask set.
+         * Since shared usb code relies on it, set it here for now.
+         * Once we have dma capability bindings this can go away.
+         */
+        if (!pdev->dev.dma_mask)
+                pdev->dev.dma_mask = &at91_ohci_dma_mask;
+
+        pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+        if (!pdata)
+                return -ENOMEM;
+
+        if (!of_property_read_u32(np, "num-ports", &ports))
+                pdata->ports = ports;
+
+        for (i = 0; i < 2; i++) {
+                gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i, &flags);
+                pdata->vbus_pin[i] = gpio;
+                if (!gpio_is_valid(gpio))
+                        continue;
+                pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW;
+                ret = gpio_request(gpio, "ohci_vbus");
+                if (ret) {
+                        dev_warn(&pdev->dev, "can't request vbus gpio %d", gpio);
+                        continue;
+                }
+                ret = gpio_direction_output(gpio, !(flags & OF_GPIO_ACTIVE_LOW) ^ 1);
+                if (ret)
+                        dev_warn(&pdev->dev, "can't put vbus gpio %d as output %d",
+                                 !(flags & OF_GPIO_ACTIVE_LOW) ^ 1, gpio);
+        }
+
+        for (i = 0; i < 2; i++) {
+                gpio = of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags);
+                pdata->overcurrent_pin[i] = gpio;
+                if (!gpio_is_valid(gpio))
+                        continue;
+                ret = gpio_request(gpio, "ohci_overcurrent");
+                if (ret) {
+                        dev_err(&pdev->dev, "can't request overcurrent gpio %d", gpio);
+                        continue;
+                }
+
+                ret = gpio_direction_input(gpio);
+                if (ret) {
+                        dev_err(&pdev->dev, "can't configure overcurrent gpio %d as input", gpio);
+                        continue;
+                }
+
+                ret = request_irq(gpio_to_irq(gpio),
+                                  ohci_hcd_at91_overcurrent_irq,
+                                  IRQF_SHARED, "ohci_overcurrent", pdev);
+                if (ret) {
+                        gpio_free(gpio);
+                        dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n");
+                }
+        }
+
+        pdev->dev.platform_data = pdata;
+
+        return 0;
+}
+#else
+static int __devinit ohci_at91_of_init(struct platform_device *pdev)
+{
+        return 0;
+}
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 {
-        struct at91_usbh_data   *pdata = pdev->dev.platform_data;
+        struct at91_usbh_data   *pdata;
         int                     i;
 
+        i = ohci_at91_of_init(pdev);
+
+        if (i)
+                return i;
+
+        pdata = pdev->dev.platform_data;
+
         if (pdata) {
                 for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
                         if (!gpio_is_valid(pdata->vbus_pin[i]))
@@ -596,5 +694,6 @@ static struct platform_driver ohci_hcd_at91_driver = {
         .driver         = {
                 .name   = "at91_ohci",
                 .owner  = THIS_MODULE,
+                .of_match_table = of_match_ptr(at91_ohci_dt_ids),
         },
 };