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omap: Enable interface clock for omap2 FS USB

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Looks like this code was only working on boards that had
the usb_l4_ick enabled in the bootloader.

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2010-07-05 16:31:29 +03:00
parent b5e8905bcd
commit 9809383930
1 changed files with 11 additions and 0 deletions
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11
arch/arm/mach-omap2/usb-fs.c
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@ -24,6 +24,8 @@
#include <linux/errno.h> #include <linux/errno.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <asm/irq.h> #include <asm/irq.h>
@ -330,9 +332,16 @@ static u32 __init omap2_usb2_init(unsigned nwires, unsigned alt_pingroup)
void __init omap2_usbfs_init(struct omap_usb_config *pdata) void __init omap2_usbfs_init(struct omap_usb_config *pdata)
{ {
struct clk *ick;
if (!cpu_is_omap24xx()) if (!cpu_is_omap24xx())
return; return;
ick = clk_get(NULL, "usb_l4_ick");
if (IS_ERR(ick))
return;
clk_enable(ick);
pdata->usb0_init = omap2_usb0_init; pdata->usb0_init = omap2_usb0_init;
pdata->usb1_init = omap2_usb1_init; pdata->usb1_init = omap2_usb1_init;
pdata->usb2_init = omap2_usb2_init; pdata->usb2_init = omap2_usb2_init;
@ -340,6 +349,8 @@ void __init omap2_usbfs_init(struct omap_usb_config *pdata)
ohci_device_init(pdata); ohci_device_init(pdata);
otg_device_init(pdata); otg_device_init(pdata);
omap_otg_init(pdata); omap_otg_init(pdata);
clk_disable(ick);
clk_put(ick);
} }
#endif #endif