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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 16:08:50 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-15 16:08:50 -0700
commit65a6ec0d72a07f16719e9b7a96e1c4bae044b591 (patch)
tree344e03a5039a44982c1b78d6113633b21b434820 /drivers/usb
parent541010e4b8921cd781ff02ae68028501457045b6 (diff)
parent0181b61a988424b5cc44fe09e6968142359c815e (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits) [ARM] 4578/1: CM-x270: PCMCIA support [ARM] 4577/1: ITE 8152 PCI bridge support [ARM] 4576/1: CM-X270 machine support [ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put() [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c [ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols [ARM] pxa: PXA3xx base support [NET] smc91x: fix PXA DMA support code [SERIAL] Fix console initialisation ordering [ARM] pxa: tidy up arch/arm/mach-pxa/Makefile [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes [ARM] 4600/1: fix kernel build failure with build-id-supporting binutils [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23) [ARM] Rename consistent_sync() as dma_cache_maint() [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 [ARM] 4594/1: ns9xxx: use the new gpio functions [ARM] 4593/1: ns9xxx: implement generic clockevents ...
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/pxa2xx_udc.c68
-rw-r--r--drivers/usb/gadget/pxa2xx_udc.h1
2 files changed, 43 insertions, 26 deletions
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
index 3e715082de3..3173b39f0bf 100644
--- a/drivers/usb/gadget/pxa2xx_udc.c
+++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -43,6 +43,8 @@
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/err.h>
#include <asm/byteorder.h>
#include <asm/dma.h>
@@ -1157,7 +1159,7 @@ static void udc_disable(struct pxa2xx_udc *dev)
#ifdef CONFIG_ARCH_PXA
/* Disable clock for USB device */
- pxa_set_cken(CKEN_USB, 0);
+ clk_disable(dev->clk);
#endif
ep0_idle (dev);
@@ -1202,8 +1204,7 @@ static void udc_enable (struct pxa2xx_udc *dev)
#ifdef CONFIG_ARCH_PXA
/* Enable clock for USB device */
- pxa_set_cken(CKEN_USB, 1);
- udelay(5);
+ clk_enable(dev->clk);
#endif
/* try to clear these bits before we enable the udc */
@@ -2137,6 +2138,14 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
if (irq < 0)
return -ENODEV;
+#ifdef CONFIG_ARCH_PXA
+ dev->clk = clk_get(&pdev->dev, "UDCCLK");
+ if (IS_ERR(dev->clk)) {
+ retval = PTR_ERR(dev->clk);
+ goto err_clk;
+ }
+#endif
+
pr_debug("%s: IRQ %d%s%s\n", driver_name, irq,
dev->has_cfr ? "" : " (!cfr)",
SIZE_STR "(pio)"
@@ -2152,11 +2161,10 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev,
"can't get vbus gpio %d, err: %d\n",
dev->mach->gpio_vbus, retval);
- return -EBUSY;
+ goto err_gpio_vbus;
}
gpio_direction_input(dev->mach->gpio_vbus);
vbus_irq = gpio_to_irq(dev->mach->gpio_vbus);
- set_irq_type(vbus_irq, IRQT_BOTHEDGE);
} else
vbus_irq = 0;
@@ -2166,9 +2174,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev,
"can't get pullup gpio %d, err: %d\n",
dev->mach->gpio_pullup, retval);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_gpio_pullup;
}
gpio_direction_output(dev->mach->gpio_pullup, 0);
}
@@ -2195,11 +2201,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
if (retval != 0) {
printk(KERN_ERR "%s: can't get irq %d, err %d\n",
driver_name, irq, retval);
- if (dev->mach->gpio_pullup)
- gpio_free(dev->mach->gpio_pullup);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_irq1;
}
dev->got_irq = 1;
@@ -2213,12 +2215,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev)
printk(KERN_ERR "%s: can't get irq %i, err %d\n",
driver_name, LUBBOCK_USB_DISC_IRQ, retval);
lubbock_fail0:
- free_irq(irq, dev);
- if (dev->mach->gpio_pullup)
- gpio_free(dev->mach->gpio_pullup);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_irq_lub;
}
retval = request_irq(LUBBOCK_USB_IRQ,
lubbock_vbus_irq,
@@ -2234,22 +2231,37 @@ lubbock_fail0:
#endif
if (vbus_irq) {
retval = request_irq(vbus_irq, udc_vbus_irq,
- IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
+ IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
driver_name, dev);
if (retval != 0) {
printk(KERN_ERR "%s: can't get irq %i, err %d\n",
driver_name, vbus_irq, retval);
- free_irq(irq, dev);
- if (dev->mach->gpio_pullup)
- gpio_free(dev->mach->gpio_pullup);
- if (dev->mach->gpio_vbus)
- gpio_free(dev->mach->gpio_vbus);
- return -EBUSY;
+ goto err_vbus_irq;
}
}
create_proc_files();
return 0;
+
+ err_vbus_irq:
+#ifdef CONFIG_ARCH_LUBBOCK
+ free_irq(LUBBOCK_USB_DISC_IRQ, dev);
+ err_irq_lub:
+#endif
+ free_irq(irq, dev);
+ err_irq1:
+ if (dev->mach->gpio_pullup)
+ gpio_free(dev->mach->gpio_pullup);
+ err_gpio_pullup:
+ if (dev->mach->gpio_vbus)
+ gpio_free(dev->mach->gpio_vbus);
+ err_gpio_vbus:
+#ifdef CONFIG_ARCH_PXA
+ clk_put(dev->clk);
+ err_clk:
+#endif
+ return retval;
}
static void pxa2xx_udc_shutdown(struct platform_device *_dev)
@@ -2284,6 +2296,10 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
if (dev->mach->gpio_pullup)
gpio_free(dev->mach->gpio_pullup);
+#ifdef CONFIG_ARCH_PXA
+ clk_put(dev->clk);
+#endif
+
platform_set_drvdata(pdev, NULL);
the_controller = NULL;
return 0;
diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h
index 0e5d0e6fb0e..1db46d70577 100644
--- a/drivers/usb/gadget/pxa2xx_udc.h
+++ b/drivers/usb/gadget/pxa2xx_udc.h
@@ -125,6 +125,7 @@ struct pxa2xx_udc {
struct timer_list timer;
struct device *dev;
+ struct clk *clk;
struct pxa2xx_udc_mach_info *mach;
u64 dma_mask;
struct pxa2xx_ep ep [PXA_UDC_NUM_ENDPOINTS];