diff options
Diffstat (limited to 'drivers/usb/phy/phy-fsl-usb.c')
| -rw-r--r-- | drivers/usb/phy/phy-fsl-usb.c | 180 |
1 files changed, 9 insertions, 171 deletions
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index f7c96d209eda..40ac68e52cee 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -12,6 +12,7 @@ #include <linux/kernel.h> #include <linux/delay.h> #include <linux/slab.h> +#include <linux/string_choices.h> #include <linux/proc_fs.h> #include <linux/errno.h> #include <linux/interrupt.h> @@ -27,7 +28,7 @@ #include <linux/platform_device.h> #include <linux/uaccess.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include "phy-fsl-usb.h" @@ -65,7 +66,7 @@ struct fsl_otg_timer *b_data_pulse_tmr, *b_vbus_pulse_tmr, *b_srp_fail_tmr, static struct list_head active_timers; -static struct fsl_otg_config fsl_otg_initdata = { +static const struct fsl_otg_config fsl_otg_initdata = { .otg_port = 1, }; @@ -529,7 +530,7 @@ int fsl_otg_start_gadget(struct otg_fsm *fsm, int on) if (!otg->gadget || !otg->gadget->dev.parent) return -ENODEV; - VDBG("gadget %s\n", on ? "on" : "off"); + VDBG("gadget %s\n", str_on_off(on)); dev = otg->gadget->dev.parent; if (on) { @@ -873,6 +874,8 @@ int usb_otg_start(struct platform_device *pdev) /* request irq */ p_otg->irq = platform_get_irq(pdev, 0); + if (p_otg->irq < 0) + return p_otg->irq; status = request_irq(p_otg->irq, fsl_otg_isr, IRQF_SHARED, driver_name, p_otg); if (status) { @@ -911,10 +914,10 @@ int usb_otg_start(struct platform_device *pdev) break; case FSL_USB2_PHY_UTMI_WIDE: temp |= PORTSC_PTW_16BIT; - /* fall through */ + fallthrough; case FSL_USB2_PHY_UTMI: temp |= PORTSC_PTS_UTMI; - /* fall through */ + fallthrough; default: break; } @@ -957,154 +960,6 @@ int usb_otg_start(struct platform_device *pdev) return 0; } -/* - * state file in sysfs - */ -static ssize_t show_fsl_usb2_otg_state(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct otg_fsm *fsm = &fsl_otg_dev->fsm; - char *next = buf; - unsigned size = PAGE_SIZE; - int t; - - mutex_lock(&fsm->lock); - - /* basic driver infomation */ - t = scnprintf(next, size, - DRIVER_DESC "\n" "fsl_usb2_otg version: %s\n\n", - DRIVER_VERSION); - size -= t; - next += t; - - /* Registers */ - t = scnprintf(next, size, - "OTGSC: 0x%08x\n" - "PORTSC: 0x%08x\n" - "USBMODE: 0x%08x\n" - "USBCMD: 0x%08x\n" - "USBSTS: 0x%08x\n" - "USBINTR: 0x%08x\n", - fsl_readl(&usb_dr_regs->otgsc), - fsl_readl(&usb_dr_regs->portsc), - fsl_readl(&usb_dr_regs->usbmode), - fsl_readl(&usb_dr_regs->usbcmd), - fsl_readl(&usb_dr_regs->usbsts), - fsl_readl(&usb_dr_regs->usbintr)); - size -= t; - next += t; - - /* State */ - t = scnprintf(next, size, - "OTG state: %s\n\n", - usb_otg_state_string(fsl_otg_dev->phy.otg->state)); - size -= t; - next += t; - - /* State Machine Variables */ - t = scnprintf(next, size, - "a_bus_req: %d\n" - "b_bus_req: %d\n" - "a_bus_resume: %d\n" - "a_bus_suspend: %d\n" - "a_conn: %d\n" - "a_sess_vld: %d\n" - "a_srp_det: %d\n" - "a_vbus_vld: %d\n" - "b_bus_resume: %d\n" - "b_bus_suspend: %d\n" - "b_conn: %d\n" - "b_se0_srp: %d\n" - "b_ssend_srp: %d\n" - "b_sess_vld: %d\n" - "id: %d\n", - fsm->a_bus_req, - fsm->b_bus_req, - fsm->a_bus_resume, - fsm->a_bus_suspend, - fsm->a_conn, - fsm->a_sess_vld, - fsm->a_srp_det, - fsm->a_vbus_vld, - fsm->b_bus_resume, - fsm->b_bus_suspend, - fsm->b_conn, - fsm->b_se0_srp, - fsm->b_ssend_srp, - fsm->b_sess_vld, - fsm->id); - size -= t; - next += t; - - mutex_unlock(&fsm->lock); - - return PAGE_SIZE - size; -} - -static DEVICE_ATTR(fsl_usb2_otg_state, S_IRUGO, show_fsl_usb2_otg_state, NULL); - - -/* Char driver interface to control some OTG input */ - -/* - * Handle some ioctl command, such as get otg - * status and set host suspend - */ -static long fsl_otg_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - u32 retval = 0; - - switch (cmd) { - case GET_OTG_STATUS: - retval = fsl_otg_dev->host_working; - break; - - case SET_A_SUSPEND_REQ: - fsl_otg_dev->fsm.a_suspend_req_inf = arg; - break; - - case SET_A_BUS_DROP: - fsl_otg_dev->fsm.a_bus_drop = arg; - break; - - case SET_A_BUS_REQ: - fsl_otg_dev->fsm.a_bus_req = arg; - break; - - case SET_B_BUS_REQ: - fsl_otg_dev->fsm.b_bus_req = arg; - break; - - default: - break; - } - - otg_statemachine(&fsl_otg_dev->fsm); - - return retval; -} - -static int fsl_otg_open(struct inode *inode, struct file *file) -{ - return 0; -} - -static int fsl_otg_release(struct inode *inode, struct file *file) -{ - return 0; -} - -static const struct file_operations otg_fops = { - .owner = THIS_MODULE, - .llseek = NULL, - .read = NULL, - .write = NULL, - .unlocked_ioctl = fsl_otg_ioctl, - .open = fsl_otg_open, - .release = fsl_otg_release, -}; - static int fsl_otg_probe(struct platform_device *pdev) { int ret; @@ -1126,20 +981,10 @@ static int fsl_otg_probe(struct platform_device *pdev) return ret; } - ret = register_chrdev(FSL_OTG_MAJOR, FSL_OTG_NAME, &otg_fops); - if (ret) { - dev_err(&pdev->dev, "unable to register FSL OTG device\n"); - return ret; - } - - ret = device_create_file(&pdev->dev, &dev_attr_fsl_usb2_otg_state); - if (ret) - dev_warn(&pdev->dev, "Can't register sysfs attribute\n"); - return ret; } -static int fsl_otg_remove(struct platform_device *pdev) +static void fsl_otg_remove(struct platform_device *pdev) { struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -1152,14 +997,8 @@ static int fsl_otg_remove(struct platform_device *pdev) kfree(fsl_otg_dev->phy.otg); kfree(fsl_otg_dev); - device_remove_file(&pdev->dev, &dev_attr_fsl_usb2_otg_state); - - unregister_chrdev(FSL_OTG_MAJOR, FSL_OTG_NAME); - if (pdata->exit) pdata->exit(pdev); - - return 0; } struct platform_driver fsl_otg_driver = { @@ -1167,7 +1006,6 @@ struct platform_driver fsl_otg_driver = { .remove = fsl_otg_remove, .driver = { .name = driver_name, - .owner = THIS_MODULE, }, }; |