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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 12:34:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 12:34:33 -0700
commit09893ee84591b0417a9186a7e7cf1503ccf99ac2 (patch)
treeda8b044ad157b82203df04ae48cb60f4737cc390 /drivers/usb/gadget/at91_udc.c
parent4bb2d1009f671815870e8f78e826e4f9071392a7 (diff)
parent7d1206bc2859c6e9f46e35ae697c138e7d7858a7 (diff)
downloadlinux-09893ee84591b0417a9186a7e7cf1503ccf99ac2.tar.bz2
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 ...
Diffstat (limited to 'drivers/usb/gadget/at91_udc.c')
-rw-r--r--drivers/usb/gadget/at91_udc.c40
1 files changed, 38 insertions, 2 deletions
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 2db5f68f7960..36fd2b4b49a2 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -29,6 +29,8 @@
#include <linux/clk.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
#include <asm/byteorder.h>
#include <mach/hardware.h>
@@ -1707,7 +1709,27 @@ static void at91udc_shutdown(struct platform_device *dev)
spin_unlock_irqrestore(&udc->lock, flags);
}
-static int __init at91udc_probe(struct platform_device *pdev)
+static void __devinit at91udc_of_init(struct at91_udc *udc,
+ struct device_node *np)
+{
+ struct at91_udc_data *board = &udc->board;
+ u32 val;
+ enum of_gpio_flags flags;
+
+ if (of_property_read_u32(np, "atmel,vbus-polled", &val) == 0)
+ board->vbus_polled = 1;
+
+ board->vbus_pin = of_get_named_gpio_flags(np, "atmel,vbus-gpio", 0,
+ &flags);
+ board->vbus_active_low = (flags & OF_GPIO_ACTIVE_LOW) ? 1 : 0;
+
+ board->pullup_pin = of_get_named_gpio_flags(np, "atmel,pullup-gpio", 0,
+ &flags);
+
+ board->pullup_active_low = (flags & OF_GPIO_ACTIVE_LOW) ? 1 : 0;
+}
+
+static int __devinit at91udc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct at91_udc *udc;
@@ -1742,7 +1764,11 @@ static int __init at91udc_probe(struct platform_device *pdev)
/* init software state */
udc = &controller;
udc->gadget.dev.parent = dev;
- udc->board = *(struct at91_udc_data *) dev->platform_data;
+ if (pdev->dev.of_node)
+ at91udc_of_init(udc, pdev->dev.of_node);
+ else
+ memcpy(&udc->board, dev->platform_data,
+ sizeof(struct at91_udc_data));
udc->pdev = pdev;
udc->enabled = 0;
spin_lock_init(&udc->lock);
@@ -1971,6 +1997,15 @@ static int at91udc_resume(struct platform_device *pdev)
#define at91udc_resume NULL
#endif
+#if defined(CONFIG_OF)
+static const struct of_device_id at91_udc_dt_ids[] = {
+ { .compatible = "atmel,at91rm9200-udc" },
+ { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, at91_udc_dt_ids);
+#endif
+
static struct platform_driver at91_udc_driver = {
.remove = __exit_p(at91udc_remove),
.shutdown = at91udc_shutdown,
@@ -1979,6 +2014,7 @@ static struct platform_driver at91_udc_driver = {
.driver = {
.name = (char *) driver_name,
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(at91_udc_dt_ids),
},
};