diff options
Diffstat (limited to 'arch/arm/mach-mx51/usb_h1.c')
| -rw-r--r-- | arch/arm/mach-mx51/usb_h1.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/mach-mx51/usb_h1.c b/arch/arm/mach-mx51/usb_h1.c index fe9ac29017a0..6fa5f5e0b6e9 100644 --- a/arch/arm/mach-mx51/usb_h1.c +++ b/arch/arm/mach-mx51/usb_h1.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/types.h> #include <linux/delay.h> +#include <linux/clk.h> #include <linux/platform_device.h> #include <linux/fsl_devices.h> #include <mach/arc_otg.h> @@ -85,6 +86,23 @@ static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable) USBCTRL &= ~UCTRL_H1WIE; } +static void usbotg_clock_gate(bool on) +{ + struct clk *usboh3_clk = clk_get(NULL, "usboh3_clk"); + struct clk *usb_ahb_clk = clk_get(NULL, "usb_ahb_clk"); + + if (on) { + clk_enable(usb_ahb_clk); + clk_enable(usboh3_clk); + } else { + clk_disable(usboh3_clk); + clk_disable(usb_ahb_clk); + } + + clk_put(usboh3_clk); + clk_put(usb_ahb_clk); +} + static struct fsl_usb2_platform_data usbh1_config = { .name = "Host 1", .platform_init = fsl_usb_host_init, @@ -95,6 +113,7 @@ static struct fsl_usb2_platform_data usbh1_config = { .gpio_usb_active = gpio_usbh1_active, .gpio_usb_inactive = gpio_usbh1_inactive, .wake_up_enable = _wake_up_enable, + .usb_clock_for_pm = usbotg_clock_gate, .transceiver = "isp1504", }; |