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-rw-r--r--drivers/usb/musb/davinci.h2
-rw-r--r--drivers/usb/musb/jz4740.c4
-rw-r--r--drivers/usb/musb/mediatek.c6
-rw-r--r--drivers/usb/musb/musb_core.c9
-rw-r--r--drivers/usb/musb/musb_core.h2
-rw-r--r--drivers/usb/musb/musb_debug.h2
-rw-r--r--drivers/usb/musb/musb_debugfs.c10
-rw-r--r--drivers/usb/musb/musb_dma.h2
-rw-r--r--drivers/usb/musb/musb_gadget.h2
-rw-r--r--drivers/usb/musb/musb_host.c10
-rw-r--r--drivers/usb/musb/musb_host.h2
-rw-r--r--drivers/usb/musb/musb_io.h2
-rw-r--r--drivers/usb/musb/musb_regs.h2
-rw-r--r--drivers/usb/musb/musb_trace.h2
-rw-r--r--drivers/usb/musb/omap2430.h2
-rw-r--r--drivers/usb/musb/tusb6010.h2
16 files changed, 40 insertions, 21 deletions
diff --git a/drivers/usb/musb/davinci.h b/drivers/usb/musb/davinci.h
index e021485c83ae..c8e67d15b510 100644
--- a/drivers/usb/musb/davinci.h
+++ b/drivers/usb/musb/davinci.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2005-2006 by Texas Instruments
*/
diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c
index e64dd30e80e7..c4fe1f4cd17a 100644
--- a/drivers/usb/musb/jz4740.c
+++ b/drivers/usb/musb/jz4740.c
@@ -30,11 +30,11 @@ static irqreturn_t jz4740_musb_interrupt(int irq, void *__hci)
irqreturn_t retval = IRQ_NONE, retval_dma = IRQ_NONE;
struct musb *musb = __hci;
- spin_lock_irqsave(&musb->lock, flags);
-
if (IS_ENABLED(CONFIG_USB_INVENTRA_DMA) && musb->dma_controller)
retval_dma = dma_controller_irq(irq, musb->dma_controller);
+ spin_lock_irqsave(&musb->lock, flags);
+
musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
diff --git a/drivers/usb/musb/mediatek.c b/drivers/usb/musb/mediatek.c
index 6196b0e8d77d..eebeadd26946 100644
--- a/drivers/usb/musb/mediatek.c
+++ b/drivers/usb/musb/mediatek.c
@@ -208,6 +208,12 @@ static irqreturn_t generic_interrupt(int irq, void *__hci)
musb->int_rx = musb_clearw(musb->mregs, MUSB_INTRRX);
musb->int_tx = musb_clearw(musb->mregs, MUSB_INTRTX);
+ if ((musb->int_usb & MUSB_INTR_RESET) && !is_host_active(musb)) {
+ /* ep0 FADDR must be 0 when (re)entering peripheral mode */
+ musb_ep_select(musb->mregs, 0);
+ musb_writeb(musb->mregs, MUSB_FADDR, 0);
+ }
+
if (musb->int_usb || musb->int_tx || musb->int_rx)
retval = musb_interrupt(musb);
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index d590110539ab..384a8039a7fd 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1795,7 +1795,7 @@ irqreturn_t musb_interrupt(struct musb *musb)
EXPORT_SYMBOL_GPL(musb_interrupt);
#ifndef CONFIG_MUSB_PIO_ONLY
-static bool use_dma = 1;
+static bool use_dma = true;
/* "modprobe ... use_dma=0" etc */
module_param(use_dma, bool, 0644);
@@ -2877,6 +2877,13 @@ static int musb_resume(struct device *dev)
musb_enable_interrupts(musb);
musb_platform_enable(musb);
+ /* session might be disabled in suspend */
+ if (musb->port_mode == MUSB_HOST &&
+ !(musb->ops->quirks & MUSB_PRESERVE_SESSION)) {
+ devctl |= MUSB_DEVCTL_SESSION;
+ musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+ }
+
spin_lock_irqsave(&musb->lock, flags);
error = musb_run_resume_work(musb);
if (error)
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 290a2bc46606..dbe5623db1e0 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver defines
*
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index c444a80fe1da..e5b3506c7b3f 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver debug defines
*
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 7b6281ab62ed..30a89aa8a3e7 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -168,6 +168,11 @@ static ssize_t musb_test_mode_write(struct file *file,
u8 test;
char buf[24];
+ memset(buf, 0x00, sizeof(buf));
+
+ if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+ return -EFAULT;
+
pm_runtime_get_sync(musb->controller);
test = musb_readb(musb->mregs, MUSB_TESTMODE);
if (test) {
@@ -176,11 +181,6 @@ static ssize_t musb_test_mode_write(struct file *file,
goto ret;
}
- memset(buf, 0x00, sizeof(buf));
-
- if (copy_from_user(buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
- return -EFAULT;
-
if (strstarts(buf, "force host full-speed"))
test = MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS;
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 4b4d8dc5d3f2..7d67b69df0a0 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver DMA controller abstraction
*
diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h
index d02663660813..f49f25b3bf56 100644
--- a/drivers/usb/musb/musb_gadget.h
+++ b/drivers/usb/musb/musb_gadget.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver peripheral defines
*
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 8736f4251a22..8b7d22a0c0fb 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1774,9 +1774,15 @@ void musb_host_rx(struct musb *musb, u8 epnum)
status = -EPIPE;
} else if (rx_csr & MUSB_RXCSR_H_ERROR) {
- musb_dbg(musb, "end %d RX proto error", epnum);
+ dev_err(musb->controller, "ep%d RX three-strikes error", epnum);
- status = -EPROTO;
+ /*
+ * The three-strikes error could only happen when the USB
+ * device is not accessible, for example detached or powered
+ * off. So return the fatal error -ESHUTDOWN so hopefully the
+ * USB device drivers won't immediately resubmit the same URB.
+ */
+ status = -ESHUTDOWN;
musb_writeb(epio, MUSB_RXINTERVAL, 0);
rx_csr &= ~MUSB_RXCSR_H_ERROR;
diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
index 2999845632ce..32336571f05c 100644
--- a/drivers/usb/musb/musb_host.h
+++ b/drivers/usb/musb/musb_host.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver host defines
*
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index f17aabd95a50..12874d3b2a64 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver register I/O
*
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 5cd7264fc2cb..5fa110978f1a 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* MUSB OTG driver register defines
*
diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h
index b193daf69685..380ebc77eab1 100644
--- a/drivers/usb/musb/musb_trace.h
+++ b/drivers/usb/musb/musb_trace.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* musb_trace.h - MUSB Controller Trace Support
*
diff --git a/drivers/usb/musb/omap2430.h b/drivers/usb/musb/omap2430.h
index 859008fa0e3c..939a0361ae88 100644
--- a/drivers/usb/musb/omap2430.h
+++ b/drivers/usb/musb/omap2430.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2005-2006 by Texas Instruments
*/
diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h
index fd8025bbece7..8a253564fb18 100644
--- a/drivers/usb/musb/tusb6010.h
+++ b/drivers/usb/musb/tusb6010.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Definitions for TUSB6010 USB 2.0 OTG Dual Role controller
*
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