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path: root/drivers/usb/musb/musb_core.c
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Diffstat (limited to 'drivers/usb/musb/musb_core.c')
-rw-r--r--drivers/usb/musb/musb_core.c71
1 files changed, 33 insertions, 38 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index daec6e0f7e38..37a261a6bb6a 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -372,13 +372,13 @@ static void musb_otg_timer_func(unsigned long data)
case OTG_STATE_A_SUSPEND:
case OTG_STATE_A_WAIT_BCON:
dev_dbg(musb->controller, "HNP: %s timeout\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
musb_platform_set_vbus(musb, 0);
musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
break;
default:
dev_dbg(musb->controller, "HNP: Unhandled mode %s\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
}
musb->ignore_disconnect = 0;
spin_unlock_irqrestore(&musb->lock, flags);
@@ -393,13 +393,14 @@ void musb_hnp_stop(struct musb *musb)
void __iomem *mbase = musb->mregs;
u8 reg;
- dev_dbg(musb->controller, "HNP: stop from %s\n", otg_state_string(musb->xceiv->state));
+ dev_dbg(musb->controller, "HNP: stop from %s\n",
+ usb_otg_state_string(musb->xceiv->state));
switch (musb->xceiv->state) {
case OTG_STATE_A_PERIPHERAL:
musb_g_disconnect(musb);
dev_dbg(musb->controller, "HNP: back to %s\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
break;
case OTG_STATE_B_HOST:
dev_dbg(musb->controller, "HNP: Disabling HR\n");
@@ -413,7 +414,7 @@ void musb_hnp_stop(struct musb *musb)
break;
default:
dev_dbg(musb->controller, "HNP: Stopping in unknown state %s\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
}
/*
@@ -451,7 +452,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
*/
if (int_usb & MUSB_INTR_RESUME) {
handled = IRQ_HANDLED;
- dev_dbg(musb->controller, "RESUME (%s)\n", otg_state_string(musb->xceiv->state));
+ dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->state));
if (devctl & MUSB_DEVCTL_HM) {
void __iomem *mbase = musb->mregs;
@@ -493,7 +494,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
default:
WARNING("bogus %s RESUME (%s)\n",
"host",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
}
} else {
switch (musb->xceiv->state) {
@@ -522,7 +523,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
default:
WARNING("bogus %s RESUME (%s)\n",
"peripheral",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
}
}
}
@@ -538,7 +539,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
}
dev_dbg(musb->controller, "SESSION_REQUEST (%s)\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
/* IRQ arrives from ID pin sense or (later, if VBUS power
* is removed) SRP. responses are time critical:
@@ -602,8 +603,9 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
break;
}
- dev_dbg(musb->controller, "VBUS_ERROR in %s (%02x, %s), retry #%d, port1 %08x\n",
- otg_state_string(musb->xceiv->state),
+ dev_printk(ignore ? KERN_DEBUG : KERN_ERR, musb->controller,
+ "VBUS_ERROR in %s (%02x, %s), retry #%d, port1 %08x\n",
+ usb_otg_state_string(musb->xceiv->state),
devctl,
({ char *s;
switch (devctl & MUSB_DEVCTL_VBUS) {
@@ -628,7 +630,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
if (int_usb & MUSB_INTR_SUSPEND) {
dev_dbg(musb->controller, "SUSPEND (%s) devctl %02x\n",
- otg_state_string(musb->xceiv->state), devctl);
+ usb_otg_state_string(musb->xceiv->state), devctl);
handled = IRQ_HANDLED;
switch (musb->xceiv->state) {
@@ -745,12 +747,12 @@ b_host:
usb_hcd_resume_root_hub(hcd);
dev_dbg(musb->controller, "CONNECT (%s) devctl %02x\n",
- otg_state_string(musb->xceiv->state), devctl);
+ usb_otg_state_string(musb->xceiv->state), devctl);
}
if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) {
dev_dbg(musb->controller, "DISCONNECT (%s) as %s, devctl %02x\n",
- otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->state),
MUSB_MODE(musb), devctl);
handled = IRQ_HANDLED;
@@ -787,7 +789,7 @@ b_host:
break;
default:
WARNING("unhandled DISCONNECT transition (%s)\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
break;
}
}
@@ -813,7 +815,7 @@ b_host:
}
} else {
dev_dbg(musb->controller, "BUS RESET as %s\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
switch (musb->xceiv->state) {
case OTG_STATE_A_SUSPEND:
/* We need to ignore disconnect on suspend
@@ -826,7 +828,7 @@ b_host:
case OTG_STATE_A_WAIT_BCON: /* OPT TD.4.7-900ms */
/* never use invalid T(a_wait_bcon) */
dev_dbg(musb->controller, "HNP: in %s, %d msec timeout\n",
- otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->state),
TA_WAIT_BCON(musb));
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(TA_WAIT_BCON(musb)));
@@ -838,7 +840,7 @@ b_host:
break;
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: RESET (%s), to b_peripheral\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
musb_g_reset(musb);
break;
@@ -850,7 +852,7 @@ b_host:
break;
default:
dev_dbg(musb->controller, "Unhandled BUS RESET as %s\n",
- otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->state));
}
}
}
@@ -1632,7 +1634,7 @@ musb_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
int ret = -EINVAL;
spin_lock_irqsave(&musb->lock, flags);
- ret = sprintf(buf, "%s\n", otg_state_string(musb->xceiv->state));
+ ret = sprintf(buf, "%s\n", usb_otg_state_string(musb->xceiv->state));
spin_unlock_irqrestore(&musb->lock, flags);
return ret;
@@ -1951,9 +1953,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb_write_ulpi_buscontrol(musb->mregs, busctl);
}
- MUSB_DEV_MODE(musb);
- musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ if (musb->xceiv->otg->default_a) {
+ MUSB_HST_MODE(musb);
+ musb->xceiv->state = OTG_STATE_A_IDLE;
+ } else {
+ MUSB_DEV_MODE(musb);
+ musb->xceiv->state = OTG_STATE_B_IDLE;
+ }
status = musb_gadget_setup(musb);
@@ -2008,7 +2014,6 @@ static int musb_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int irq = platform_get_irq_byname(pdev, "mc");
- int status;
struct resource *iomem;
void __iomem *base;
@@ -2016,24 +2021,17 @@ static int musb_probe(struct platform_device *pdev)
if (!iomem || irq <= 0)
return -ENODEV;
- base = ioremap(iomem->start, resource_size(iomem));
- if (!base) {
- dev_err(dev, "ioremap failed\n");
- return -ENOMEM;
- }
+ base = devm_ioremap_resource(dev, iomem);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
- status = musb_init_controller(dev, irq, base);
- if (status < 0)
- iounmap(base);
-
- return status;
+ return musb_init_controller(dev, irq, base);
}
static int musb_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct musb *musb = dev_to_musb(dev);
- void __iomem *ctrl_base = musb->ctrl_base;
/* this gets called on rmmod.
* - Host mode: host may still be active
@@ -2044,7 +2042,6 @@ static int musb_remove(struct platform_device *pdev)
musb_shutdown(pdev);
musb_free(musb);
- iounmap(ctrl_base);
device_init_wakeup(dev, 0);
#ifndef CONFIG_MUSB_PIO_ONLY
dma_set_mask(dev, *dev->parent->dma_mask);
@@ -2293,8 +2290,6 @@ static int __init musb_init(void)
if (usb_disabled())
return 0;
- pr_info("%s: version " MUSB_VERSION ", ?dma?, otg (peripheral+host)\n",
- musb_driver_name);
return platform_driver_register(&musb_driver);
}
module_init(musb_init);
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-29 20:45:30 +0000