diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/arcotg_udc.c | 22 | ||||
| -rw-r--r-- | drivers/usb/gadget/arcotg_udc.h | 1 | ||||
| -rw-r--r-- | drivers/usb/host/ehci-arc.c | 5 |
3 files changed, 19 insertions, 9 deletions
diff --git a/drivers/usb/gadget/arcotg_udc.c b/drivers/usb/gadget/arcotg_udc.c index 142a61585898..0b5c8b66256d 100644 --- a/drivers/usb/gadget/arcotg_udc.c +++ b/drivers/usb/gadget/arcotg_udc.c @@ -320,6 +320,7 @@ static void dr_phy_low_power_mode(struct fsl_udc *udc, bool enable) struct fsl_usb2_platform_data *pdata = udc->pdata; u32 portsc; + pdata->lowpower = enable; if (pdata && pdata->phy_lowpower_suspend) { pdata->phy_lowpower_suspend(pdata, enable); } else { @@ -333,7 +334,6 @@ static void dr_phy_low_power_mode(struct fsl_udc *udc, bool enable) fsl_writel(portsc, &dr_regs->portsc1); } } - pdata->lowpower = enable; } @@ -3120,9 +3120,6 @@ static int udc_suspend(struct fsl_udc *udc) else dr_wake_up_enable(udc, true); } - mode = fsl_readl(&dr_regs->usbmode) & USB_MODE_CTRL_MODE_MASK; - usbcmd = fsl_readl(&dr_regs->usbcmd); - /* * If the controller is already stopped, then this must be a * PM suspend. Remember this fact, so that we will leave the @@ -3133,6 +3130,8 @@ static int udc_suspend(struct fsl_udc *udc) goto out; } + mode = fsl_readl(&dr_regs->usbmode) & USB_MODE_CTRL_MODE_MASK; + usbcmd = fsl_readl(&dr_regs->usbcmd); if (mode != USB_MODE_CTRL_MODE_DEVICE) { printk(KERN_DEBUG "gadget not in device mode, leaving early\n"); goto out; @@ -3154,7 +3153,7 @@ static int udc_suspend(struct fsl_udc *udc) * In that case, the usb device can be remained on suspend state * and the dp will not be changed. */ - if (!(fsl_readl(&dr_regs->otgsc) & OTGSC_B_SESSION_VALID)) { + if (!(fsl_readl(&dr_regs->otgsc) & OTGSC_A_BUS_VALID)) { /* stop the controller */ usbcmd = fsl_readl(&dr_regs->usbcmd) & ~USB_CMD_RUN_STOP; fsl_writel(usbcmd, &dr_regs->usbcmd); @@ -3163,9 +3162,16 @@ static int udc_suspend(struct fsl_udc *udc) dr_phy_low_power_mode(udc, true); printk(KERN_DEBUG "USB Gadget suspend ends\n"); out: + if (udc->suspended > 1) { + pr_warning( + "It's the case usb device is on otg port and the gadget driver" + "is loaded during boots up\n" + "So, do not increase suspended counter Or there is a error, " + "please debug it !!! \n" + ); + return 0; + } udc->suspended++; - if (udc->suspended > 2) - printk(KERN_ERR "ERROR: suspended times > 2\n"); return 0; } @@ -3177,6 +3183,8 @@ out: static int fsl_udc_suspend(struct platform_device *pdev, pm_message_t state) { int ret; + pr_debug("%s(): stopped %d suspended %d\n", __func__, + udc_controller->stopped, udc_controller->suspended); #ifdef CONFIG_USB_OTG if (udc_controller->transceiver->gadget == NULL) return 0; diff --git a/drivers/usb/gadget/arcotg_udc.h b/drivers/usb/gadget/arcotg_udc.h index bc88afb360c3..8c154d0e858e 100644 --- a/drivers/usb/gadget/arcotg_udc.h +++ b/drivers/usb/gadget/arcotg_udc.h @@ -265,6 +265,7 @@ struct usb_sys_interface { #define OTGSC_B_SESSION_VALID_IRQ_EN (1 << 27) #define OTGSC_B_SESSION_VALID_IRQ_STS (1 << 19) #define OTGSC_B_SESSION_VALID (1 << 11) +#define OTGSC_A_BUS_VALID (1 << 9) /* bit 28 is parallel transceiver width for UTMI interface */ #define PORTSCX_PTW (0x10000000) diff --git a/drivers/usb/host/ehci-arc.c b/drivers/usb/host/ehci-arc.c index cf932e3b5466..e54eef85237c 100644 --- a/drivers/usb/host/ehci-arc.c +++ b/drivers/usb/host/ehci-arc.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2005 MontaVista Software - * Copyright (C) 2011 Freescale Semiconductor + * Copyright (C) 2011 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -33,6 +33,8 @@ extern int usb_host_wakeup_irq(struct device *wkup_dev); extern void usb_host_set_wakeup(struct device *wkup_dev, bool para); static void fsl_usb_lowpower_mode(struct fsl_usb2_platform_data *pdata, bool enable) { + pdata->lowpower = enable; + if (enable) { if (pdata->phy_lowpower_suspend) pdata->phy_lowpower_suspend(pdata, true); @@ -40,7 +42,6 @@ static void fsl_usb_lowpower_mode(struct fsl_usb2_platform_data *pdata, bool ena if (pdata->phy_lowpower_suspend) pdata->phy_lowpower_suspend(pdata, false); } - pdata->lowpower = enable; } static void fsl_usb_clk_gate(struct fsl_usb2_platform_data *pdata, bool enable) |