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[ARM] USB: update pxa27x ohci driver to use clk support 

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
eric miao 2007-12-12 08:53:25 +08:00 committed by Russell King
parent 88d456386c
commit a8bcf4108d
1 changed files with 11 additions and 2 deletions
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13
drivers/usb/host/ohci-pxa27x.c
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@ -22,6 +22,7 @@
#include <linux/device.h>
#include <linux/signal.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
@ -32,6 +33,8 @@
#define UHCRHPS(x) __REG2( 0x4C000050, (x)<<2 )
static struct clk *usb_clk;
/*
PMM_NPS_MODE -- PMM Non-power switching mode
Ports are powered continuously.
@ -80,7 +83,7 @@ static int pxa27x_start_hc(struct device *dev)
inf = dev->platform_data;
pxa_set_cken(CKEN_USBHOST, 1);
clk_enable(usb_clk);
UHCHR |= UHCHR_FHR;
udelay(11);
@ -123,7 +126,7 @@ static void pxa27x_stop_hc(struct device *dev)
UHCCOMS |= 1;
udelay(10);
pxa_set_cken(CKEN_USBHOST, 0);
clk_disable(usb_clk);
}
@ -158,6 +161,10 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
return -ENOMEM;
}
usb_clk = clk_get(&pdev->dev, "USBCLK");
if (IS_ERR(usb_clk))
return PTR_ERR(usb_clk);
hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
if (!hcd)
return -ENOMEM;
@ -201,6 +208,7 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
clk_put(usb_clk);
return retval;
}
@ -225,6 +233,7 @@ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev)
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
clk_put(usb_clk);
}
/*-------------------------------------------------------------------------*/