diff options
Diffstat (limited to 'drivers/usb/musb/da8xx.c')
| -rw-r--r-- | drivers/usb/musb/da8xx.c | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 8abf3a567e30..4209f438ba18 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -21,6 +21,7 @@ #include <linux/of_platform.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> +#include <linux/string_choices.h> #include <linux/dma-mapping.h> #include <linux/usb/usb_phy_generic.h> @@ -122,7 +123,8 @@ static void da8xx_musb_set_vbus(struct musb *musb, int is_on) static void otg_timer(struct timer_list *t) { - struct musb *musb = from_timer(musb, t, dev_timer); + struct musb *musb = timer_container_of(musb, t, + dev_timer); void __iomem *mregs = musb->mregs; u8 devctl; unsigned long flags; @@ -191,7 +193,7 @@ static void otg_timer(struct timer_list *t) spin_unlock_irqrestore(&musb->lock, flags); } -static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) +static void __maybe_unused da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) { static unsigned long last_timer; @@ -203,7 +205,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) { dev_dbg(musb->controller, "%s active, deleting timer\n", usb_otg_state_string(musb->xceiv->otg->state)); - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); last_timer = jiffies; return; } @@ -220,6 +222,13 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) mod_timer(&musb->dev_timer, timeout); } +static int da8xx_babble_recover(struct musb *musb) +{ + dev_dbg(musb->controller, "resetting controller to recover from babble\n"); + musb_writel(musb->ctrl_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK); + return 0; +} + static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) { struct musb *musb = hci; @@ -282,7 +291,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) MUSB_HST_MODE(musb); musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE; portstate(musb->port1_status |= USB_PORT_STAT_POWER); - del_timer(&musb->dev_timer); + timer_delete(&musb->dev_timer); } else if (!(musb->int_usb & MUSB_INTR_BABBLE)) { /* * When babble condition happens, drvvbus interrupt @@ -299,7 +308,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) } dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", - drvvbus ? "on" : "off", + str_on_off(drvvbus), usb_otg_state_string(musb->xceiv->otg->state), err ? " ERROR" : "", devctl); @@ -328,13 +337,6 @@ static int da8xx_musb_set_mode(struct musb *musb, u8 musb_mode) struct da8xx_glue *glue = dev_get_drvdata(musb->controller->parent); enum phy_mode phy_mode; - /* - * The PHY has some issues when it is forced in device or host mode. - * Unless the user request another mode, configure the PHY in OTG mode. - */ - if (!musb->is_initialized) - return phy_set_mode(glue->phy, PHY_MODE_USB_OTG); - switch (musb_mode) { case MUSB_HOST: /* Force VBUS valid, ID = 0 */ phy_mode = PHY_MODE_USB_HOST; @@ -418,7 +420,7 @@ static int da8xx_musb_exit(struct musb *musb) { struct da8xx_glue *glue = dev_get_drvdata(musb->controller->parent); - del_timer_sync(&musb->dev_timer); + timer_delete_sync(&musb->dev_timer); phy_power_off(glue->phy); phy_exit(glue->phy); @@ -483,7 +485,11 @@ static const struct musb_platform_ops da8xx_ops = { .disable = da8xx_musb_disable, .set_mode = da8xx_musb_set_mode, + +#ifndef CONFIG_USB_MUSB_HOST .try_idle = da8xx_musb_try_idle, +#endif + .recover = da8xx_babble_recover, .set_vbus = da8xx_musb_set_vbus, }; @@ -556,7 +562,7 @@ static int da8xx_probe(struct platform_device *pdev) ret = of_platform_populate(pdev->dev.of_node, NULL, da8xx_auxdata_lookup, &pdev->dev); if (ret) - return ret; + goto err_unregister_phy; pinfo = da8xx_dev_info; pinfo.parent = &pdev->dev; @@ -571,9 +577,13 @@ static int da8xx_probe(struct platform_device *pdev) ret = PTR_ERR_OR_ZERO(glue->musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); - usb_phy_generic_unregister(glue->usb_phy); + goto err_unregister_phy; } + return 0; + +err_unregister_phy: + usb_phy_generic_unregister(glue->usb_phy); return ret; } @@ -625,7 +635,7 @@ MODULE_DEVICE_TABLE(of, da8xx_id_table); static struct platform_driver da8xx_driver = { .probe = da8xx_probe, - .remove_new = da8xx_remove, + .remove = da8xx_remove, .driver = { .name = "musb-da8xx", .pm = &da8xx_pm_ops, |