diff options
| author | Jingchang Lu <b35083@freescale.com> | 2012-12-07 17:28:16 +0800 |
|---|---|---|
| committer | Ed Nash <enash@enash-desktop.(none)> | 2012-12-12 14:46:32 -0500 |
| commit | 051e157a7bcacf3d4f84289c2e8cc561ecb4a3c3 (patch) | |
| tree | de51a10f4b913f6046aa975d5b3165232207733e /arch/arm/plat-mxc/usb_wakeup.c | |
| parent | 3bb1551c08e3a5b0303bd0a4f52d048ee75cee65 (diff) | |
ENGR00216081-1:Add USB host and gadget PM support
Handle usb suspend/resume, currently the BSP doesn't
support usb plug/unplug wakeup.
Signed-off-by: Jingchang Lu <b35083@freescale.com>
Diffstat (limited to 'arch/arm/plat-mxc/usb_wakeup.c')
| -rwxr-xr-x | arch/arm/plat-mxc/usb_wakeup.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/arch/arm/plat-mxc/usb_wakeup.c b/arch/arm/plat-mxc/usb_wakeup.c index 4704eae91a51..7187eff67426 100755 --- a/arch/arm/plat-mxc/usb_wakeup.c +++ b/arch/arm/plat-mxc/usb_wakeup.c @@ -36,7 +36,8 @@ struct wakeup_ctrl { struct task_struct *thread; struct completion event; }; -static struct wakeup_ctrl *g_ctrl; +static struct wakeup_ctrl *g_ctrl[2]; +static unsigned int g_ctrls; extern int usb_event_is_otg_wakeup(struct fsl_usb2_platform_data *pdata); extern void usb_debounce_id_vbus(void); @@ -166,7 +167,7 @@ static int wakeup_dev_probe(struct platform_device *pdev) int status; unsigned long interrupt_flag; - printk(KERN_INFO "IMX usb wakeup probe\n"); + printk(KERN_INFO "IMX usb wakeup probe. id=%d\n", pdev->id); if (!pdev || !pdev->dev.platform_data) return -ENODEV; @@ -192,11 +193,12 @@ static int wakeup_dev_probe(struct platform_device *pdev) if (status) goto error1; - ctrl->thread = kthread_run(wakeup_event_thread, (void *)ctrl, "usb_wakeup thread"); + ctrl->thread = kthread_run(wakeup_event_thread, (void *)ctrl, + "usb_wakeup:%d", pdev->id); status = IS_ERR(ctrl->thread) ? -1 : 0; if (status) goto error2; - g_ctrl = ctrl; + g_ctrl[g_ctrls++] = ctrl; printk(KERN_DEBUG "the wakeup pdata is 0x%p\n", pdata); return 0; @@ -209,12 +211,17 @@ error1: static int wakeup_dev_exit(struct platform_device *pdev) { - if (g_ctrl->thread) { - complete(&g_ctrl->event); - kthread_stop(g_ctrl->thread); + int i; + for (i = 0; i < g_ctrls; i++) { + if (g_ctrl[i]->thread) { + complete(&g_ctrl[i]->event); + kthread_stop(g_ctrl[i]->thread); + } + free_irq(g_ctrl[i]->wakeup_irq, (void *)g_ctrl[i]); + kfree(g_ctrl[i]); + g_ctrl[i] = NULL; + g_ctrls = 0; } - free_irq(g_ctrl->wakeup_irq, (void *)g_ctrl); - kfree(g_ctrl); return 0; } static struct platform_driver wakeup_d = { |