summaryrefslogtreecommitdiffstats
path: root/drivers/usb/musb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/Kconfig3
-rw-r--r--drivers/usb/musb/blackfin.c1
-rw-r--r--drivers/usb/musb/cppi_dma.c26
-rw-r--r--drivers/usb/musb/musb_core.h12
-rw-r--r--drivers/usb/musb/musb_gadget.c9
-rw-r--r--drivers/usb/musb/musb_regs.h6
-rw-r--r--drivers/usb/musb/tusb6010.c1
-rw-r--r--drivers/usb/musb/tusb6010_omap.c3
-rw-r--r--drivers/usb/musb/ux500_dma.c38
9 files changed, 62 insertions, 37 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 6192b45959f4..fc34b8b11910 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -3,9 +3,6 @@
# for silicon based on Mentor Graphics INVENTRA designs
#
-comment "Enable Host or Gadget support to see Inventra options"
- depends on !USB && USB_GADGET=n
-
# (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
config USB_MUSB_HDRC
depends on USB && USB_GADGET
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index ae8c39617743..5e7cfba5b079 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -17,6 +17,7 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/prefetch.h>
#include <asm/cacheflush.h>
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 149f3f310a0a..318fb4e8a885 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -226,8 +226,10 @@ static int cppi_controller_stop(struct dma_controller *c)
struct cppi *controller;
void __iomem *tibase;
int i;
+ struct musb *musb;
controller = container_of(c, struct cppi, controller);
+ musb = controller->musb;
tibase = controller->tibase;
/* DISABLE INDIVIDUAL CHANNEL Interrupts */
@@ -289,9 +291,11 @@ cppi_channel_allocate(struct dma_controller *c,
u8 index;
struct cppi_channel *cppi_ch;
void __iomem *tibase;
+ struct musb *musb;
controller = container_of(c, struct cppi, controller);
tibase = controller->tibase;
+ musb = controller->musb;
/* ep0 doesn't use DMA; remember cppi indices are 0..N-1 */
index = ep->epnum - 1;
@@ -339,7 +343,8 @@ static void cppi_channel_release(struct dma_channel *channel)
c = container_of(channel, struct cppi_channel, channel);
tibase = c->controller->tibase;
if (!c->hw_ep)
- dev_dbg(musb->controller, "releasing idle DMA channel %p\n", c);
+ dev_dbg(c->controller->musb->controller,
+ "releasing idle DMA channel %p\n", c);
else if (!c->transmit)
core_rxirq_enable(tibase, c->index + 1);
@@ -357,10 +362,11 @@ cppi_dump_rx(int level, struct cppi_channel *c, const char *tag)
musb_ep_select(base, c->index + 1);
- DBG(level, "RX DMA%d%s: %d left, csr %04x, "
- "%08x H%08x S%08x C%08x, "
- "B%08x L%08x %08x .. %08x"
- "\n",
+ dev_dbg(c->controller->musb->controller,
+ "RX DMA%d%s: %d left, csr %04x, "
+ "%08x H%08x S%08x C%08x, "
+ "B%08x L%08x %08x .. %08x"
+ "\n",
c->index, tag,
musb_readl(c->controller->tibase,
DAVINCI_RXCPPI_BUFCNT0_REG + 4 * c->index),
@@ -387,10 +393,11 @@ cppi_dump_tx(int level, struct cppi_channel *c, const char *tag)
musb_ep_select(base, c->index + 1);
- DBG(level, "TX DMA%d%s: csr %04x, "
- "H%08x S%08x C%08x %08x, "
- "F%08x L%08x .. %08x"
- "\n",
+ dev_dbg(c->controller->musb->controller,
+ "TX DMA%d%s: csr %04x, "
+ "H%08x S%08x C%08x %08x, "
+ "F%08x L%08x .. %08x"
+ "\n",
c->index, tag,
musb_readw(c->hw_ep->regs, MUSB_TXCSR),
@@ -1022,6 +1029,7 @@ static bool cppi_rx_scan(struct cppi *cppi, unsigned ch)
int i;
dma_addr_t safe2ack;
void __iomem *regs = rx->hw_ep->regs;
+ struct musb *musb = cppi->musb;
cppi_dump_rx(6, rx, "/K");
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 668eeef601ae..b3c065ab9dbc 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -172,7 +172,8 @@ enum musb_g_ep0_state {
#endif
/* TUSB mapping: "flat" plus ep0 special cases */
-#if defined(CONFIG_USB_MUSB_TUSB6010)
+#if defined(CONFIG_USB_MUSB_TUSB6010) || \
+ defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
#define musb_ep_select(_mbase, _epnum) \
musb_writeb((_mbase), MUSB_INDEX, (_epnum))
#define MUSB_EP_OFFSET MUSB_TUSB_OFFSET
@@ -241,7 +242,8 @@ struct musb_hw_ep {
void __iomem *fifo;
void __iomem *regs;
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || \
+ defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
void __iomem *conf;
#endif
@@ -258,7 +260,8 @@ struct musb_hw_ep {
struct dma_channel *tx_channel;
struct dma_channel *rx_channel;
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || \
+ defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
/* TUSB has "asynchronous" and "synchronous" dma modes */
dma_addr_t fifo_async;
dma_addr_t fifo_sync;
@@ -356,7 +359,8 @@ struct musb {
void __iomem *ctrl_base;
void __iomem *mregs;
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || \
+ defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
dma_addr_t async;
dma_addr_t sync;
void __iomem *sync_va;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 95a67fea393b..fe8d14cac436 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1698,6 +1698,8 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
is_on = !!is_on;
+ pm_runtime_get_sync(musb->controller);
+
/* NOTE: this assumes we are sensing vbus; we'd rather
* not pullup unless the B-session is active.
*/
@@ -1707,6 +1709,9 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
musb_pullup(musb, is_on);
}
spin_unlock_irqrestore(&musb->lock, flags);
+
+ pm_runtime_put(musb->controller);
+
return 0;
}
@@ -1851,6 +1856,7 @@ int __init musb_gadget_setup(struct musb *musb)
return 0;
err:
+ musb->g.dev.parent = NULL;
device_unregister(&musb->g.dev);
return status;
}
@@ -1858,7 +1864,8 @@ err:
void musb_gadget_cleanup(struct musb *musb)
{
usb_del_gadget_udc(&musb->g);
- device_unregister(&musb->g.dev);
+ if (musb->g.dev.parent)
+ device_unregister(&musb->g.dev);
}
/*
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index 82410703dcd3..03f2655af290 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -234,7 +234,8 @@
#define MUSB_TESTMODE 0x0F /* 8 bit */
/* Get offset for a given FIFO from musb->mregs */
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || \
+ defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
#define MUSB_FIFO_OFFSET(epnum) (0x200 + ((epnum) * 0x20))
#else
#define MUSB_FIFO_OFFSET(epnum) (0x20 + ((epnum) * 4))
@@ -295,7 +296,8 @@
#define MUSB_FLAT_OFFSET(_epnum, _offset) \
(0x100 + (0x10*(_epnum)) + (_offset))
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || \
+ defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
/* TUSB6010 EP0 configuration register is special */
#define MUSB_TUSB_OFFSET(_epnum, _offset) \
(0x10 + _offset)
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 9eec41fbf3a4..ec1480191f78 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
+#include <linux/prefetch.h>
#include <linux/usb.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index c784e6c03aac..b67b4bc596c1 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -20,6 +20,7 @@
#include <plat/mux.h>
#include "musb_core.h"
+#include "tusb6010.h"
#define to_chdat(c) ((struct tusb_omap_dma_ch *)(c)->private_data)
@@ -89,7 +90,7 @@ static inline int tusb_omap_use_shared_dmareq(struct tusb_omap_dma_ch *chdat)
u32 reg = musb_readl(chdat->tbase, TUSB_DMA_EP_MAP);
if (reg != 0) {
- dev_dbg(musb->controller, "ep%i dmareq0 is busy for ep%i\n",
+ dev_dbg(chdat->musb->controller, "ep%i dmareq0 is busy for ep%i\n",
chdat->epnum, reg & 0xf);
return -EAGAIN;
}
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index cecace411832..ef4333f4bbe0 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -65,7 +65,8 @@ static void ux500_tx_work(struct work_struct *data)
struct musb *musb = hw_ep->musb;
unsigned long flags;
- DBG(4, "DMA tx transfer done on hw_ep=%d\n", hw_ep->epnum);
+ dev_dbg(musb->controller, "DMA tx transfer done on hw_ep=%d\n",
+ hw_ep->epnum);
spin_lock_irqsave(&musb->lock, flags);
ux500_channel->channel.actual_len = ux500_channel->cur_len;
@@ -84,7 +85,8 @@ static void ux500_rx_work(struct work_struct *data)
struct musb *musb = hw_ep->musb;
unsigned long flags;
- DBG(4, "DMA rx transfer done on hw_ep=%d\n", hw_ep->epnum);
+ dev_dbg(musb->controller, "DMA rx transfer done on hw_ep=%d\n",
+ hw_ep->epnum);
spin_lock_irqsave(&musb->lock, flags);
ux500_channel->channel.actual_len = ux500_channel->cur_len;
@@ -116,9 +118,11 @@ static bool ux500_configure_channel(struct dma_channel *channel,
enum dma_slave_buswidth addr_width;
dma_addr_t usb_fifo_addr = (MUSB_FIFO_OFFSET(hw_ep->epnum) +
ux500_channel->controller->phy_base);
+ struct musb *musb = ux500_channel->controller->private_data;
- DBG(4, "packet_sz=%d, mode=%d, dma_addr=0x%x, len=%d is_tx=%d\n",
- packet_sz, mode, dma_addr, len, ux500_channel->is_tx);
+ dev_dbg(musb->controller,
+ "packet_sz=%d, mode=%d, dma_addr=0x%x, len=%d is_tx=%d\n",
+ packet_sz, mode, dma_addr, len, ux500_channel->is_tx);
ux500_channel->cur_len = len;
@@ -133,15 +137,13 @@ static bool ux500_configure_channel(struct dma_channel *channel,
DMA_SLAVE_BUSWIDTH_4_BYTES;
slave_conf.direction = direction;
- if (direction == DMA_FROM_DEVICE) {
- slave_conf.src_addr = usb_fifo_addr;
- slave_conf.src_addr_width = addr_width;
- slave_conf.src_maxburst = 16;
- } else {
- slave_conf.dst_addr = usb_fifo_addr;
- slave_conf.dst_addr_width = addr_width;
- slave_conf.dst_maxburst = 16;
- }
+ slave_conf.src_addr = usb_fifo_addr;
+ slave_conf.src_addr_width = addr_width;
+ slave_conf.src_maxburst = 16;
+ slave_conf.dst_addr = usb_fifo_addr;
+ slave_conf.dst_addr_width = addr_width;
+ slave_conf.dst_maxburst = 16;
+
dma_chan->device->device_control(dma_chan, DMA_SLAVE_CONFIG,
(unsigned long) &slave_conf);
@@ -166,6 +168,7 @@ static struct dma_channel *ux500_dma_channel_allocate(struct dma_controller *c,
struct ux500_dma_controller *controller = container_of(c,
struct ux500_dma_controller, controller);
struct ux500_dma_channel *ux500_channel = NULL;
+ struct musb *musb = controller->private_data;
u8 ch_num = hw_ep->epnum - 1;
u32 max_ch;
@@ -192,7 +195,7 @@ static struct dma_channel *ux500_dma_channel_allocate(struct dma_controller *c,
ux500_channel->hw_ep = hw_ep;
ux500_channel->is_allocated = 1;
- DBG(7, "hw_ep=%d, is_tx=0x%x, channel=%d\n",
+ dev_dbg(musb->controller, "hw_ep=%d, is_tx=0x%x, channel=%d\n",
hw_ep->epnum, is_tx, ch_num);
return &(ux500_channel->channel);
@@ -201,8 +204,9 @@ static struct dma_channel *ux500_dma_channel_allocate(struct dma_controller *c,
static void ux500_dma_channel_release(struct dma_channel *channel)
{
struct ux500_dma_channel *ux500_channel = channel->private_data;
+ struct musb *musb = ux500_channel->controller->private_data;
- DBG(7, "channel=%d\n", ux500_channel->ch_num);
+ dev_dbg(musb->controller, "channel=%d\n", ux500_channel->ch_num);
if (ux500_channel->is_allocated) {
ux500_channel->is_allocated = 0;
@@ -252,8 +256,8 @@ static int ux500_dma_channel_abort(struct dma_channel *channel)
void __iomem *epio = musb->endpoints[ux500_channel->hw_ep->epnum].regs;
u16 csr;
- DBG(4, "channel=%d, is_tx=%d\n", ux500_channel->ch_num,
- ux500_channel->is_tx);
+ dev_dbg(musb->controller, "channel=%d, is_tx=%d\n",
+ ux500_channel->ch_num, ux500_channel->is_tx);
if (channel->status == MUSB_DMA_STATUS_BUSY) {
if (ux500_channel->is_tx) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 13:10:12 +0100