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Merge tag 'usb-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

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Felipe writes:

usb: patches for v3.17 merge window

Surprisingly enough, while a big set of patches, the majority is
composed of cleanups (using devm_*, fixing sparse errors, moving
code around, adding const, etc).

The highlights are addition of new support for PLX USB338x devices,
and support for USB 2.0-only configurations of the DWC3 IP core.

Signed-of-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Greg Kroah-Hartman
2014-07-21 11:33:41 -07:00
parent 499b3803d3 8346b33fad
commit 61fe2d75f1
159 changed files with 7024 additions and 4938 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
drivers/usb/musb/musb_cppi41.c
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@@ -39,7 +39,6 @@ struct cppi41_dma_channel {
u32 transferred;
u32 packet_sz;
struct list_head tx_check;
struct work_struct dma_completion;
};
#define MUSB_DMA_NUM_CHANNELS 15
@@ -74,15 +73,18 @@ static void save_rx_toggle(struct cppi41_dma_channel *cppi41_channel)
static void update_rx_toggle(struct cppi41_dma_channel *cppi41_channel)
{
struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep;
struct musb *musb = hw_ep->musb;
u16 csr;
u8 toggle;
if (cppi41_channel->is_tx)
return;
if (!is_host_active(cppi41_channel->controller->musb))
if (!is_host_active(musb))
return;
csr = musb_readw(cppi41_channel->hw_ep->regs, MUSB_RXCSR);
musb_ep_select(musb->mregs, hw_ep->epnum);
csr = musb_readw(hw_ep->regs, MUSB_RXCSR);
toggle = csr & MUSB_RXCSR_H_DATATOGGLE ? 1 : 0;
/*
@@ -107,24 +109,13 @@ static bool musb_is_tx_fifo_empty(struct musb_hw_ep *hw_ep)
void __iomem *epio = musb->endpoints[epnum].regs;
u16 csr;
musb_ep_select(musb->mregs, hw_ep->epnum);
csr = musb_readw(epio, MUSB_TXCSR);
if (csr & MUSB_TXCSR_TXPKTRDY)
return false;
return true;
}
static bool is_isoc(struct musb_hw_ep *hw_ep, bool in)
{
if (in && hw_ep->in_qh) {
if (hw_ep->in_qh->type == USB_ENDPOINT_XFER_ISOC)
return true;
} else if (hw_ep->out_qh) {
if (hw_ep->out_qh->type == USB_ENDPOINT_XFER_ISOC)
return true;
}
return false;
}
static void cppi41_dma_callback(void *private_data);
static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel)
@@ -139,6 +130,7 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel)
cppi41_channel->channel.actual_len =
cppi41_channel->transferred;
cppi41_channel->channel.status = MUSB_DMA_STATUS_FREE;
cppi41_channel->channel.rx_packet_done = true;
musb_dma_completion(musb, hw_ep->epnum, cppi41_channel->is_tx);
} else {
/* next iteration, reload */
@@ -172,6 +164,7 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel)
dma_async_issue_pending(dc);
if (!cppi41_channel->is_tx) {
musb_ep_select(musb->mregs, hw_ep->epnum);
csr = musb_readw(epio, MUSB_RXCSR);
csr |= MUSB_RXCSR_H_REQPKT;
musb_writew(epio, MUSB_RXCSR, csr);
@@ -179,32 +172,6 @@ static void cppi41_trans_done(struct cppi41_dma_channel *cppi41_channel)
}
}
static void cppi_trans_done_work(struct work_struct *work)
{
unsigned long flags;
struct cppi41_dma_channel *cppi41_channel =
container_of(work, struct cppi41_dma_channel, dma_completion);
struct cppi41_dma_controller *controller = cppi41_channel->controller;
struct musb *musb = controller->musb;
struct musb_hw_ep *hw_ep = cppi41_channel->hw_ep;
bool empty;
if (!cppi41_channel->is_tx && is_isoc(hw_ep, 1)) {
spin_lock_irqsave(&musb->lock, flags);
cppi41_trans_done(cppi41_channel);
spin_unlock_irqrestore(&musb->lock, flags);
} else {
empty = musb_is_tx_fifo_empty(hw_ep);
if (empty) {
spin_lock_irqsave(&musb->lock, flags);
cppi41_trans_done(cppi41_channel);
spin_unlock_irqrestore(&musb->lock, flags);
} else {
schedule_work(&cppi41_channel->dma_completion);
}
}
}
static enum hrtimer_restart cppi41_recheck_tx_req(struct hrtimer *timer)
{
struct cppi41_dma_controller *controller;
@@ -233,7 +200,7 @@ static enum hrtimer_restart cppi41_recheck_tx_req(struct hrtimer *timer)
if (!list_empty(&controller->early_tx_list)) {
ret = HRTIMER_RESTART;
hrtimer_forward_now(&controller->early_tx,
ktime_set(0, 150 * NSEC_PER_USEC));
ktime_set(0, 50 * NSEC_PER_USEC));
}
spin_unlock_irqrestore(&musb->lock, flags);
@@ -268,14 +235,6 @@ static void cppi41_dma_callback(void *private_data)
transferred < cppi41_channel->packet_sz)
cppi41_channel->prog_len = 0;
if (!cppi41_channel->is_tx) {
if (is_isoc(hw_ep, 1))
schedule_work(&cppi41_channel->dma_completion);
else
cppi41_trans_done(cppi41_channel);
goto out;
}
empty = musb_is_tx_fifo_empty(hw_ep);
if (empty) {
cppi41_trans_done(cppi41_channel);
@@ -312,15 +271,13 @@ static void cppi41_dma_callback(void *private_data)
goto out;
}
}
if (is_isoc(hw_ep, 0)) {
schedule_work(&cppi41_channel->dma_completion);
goto out;
}
list_add_tail(&cppi41_channel->tx_check,
&controller->early_tx_list);
if (!hrtimer_is_queued(&controller->early_tx)) {
unsigned long usecs = cppi41_channel->total_len / 10;
hrtimer_start_range_ns(&controller->early_tx,
ktime_set(0, 140 * NSEC_PER_USEC),
ktime_set(0, usecs * NSEC_PER_USEC),
40 * NSEC_PER_USEC,
HRTIMER_MODE_REL);
}
@@ -450,6 +407,7 @@ static bool cppi41_configure_channel(struct dma_channel *channel,
dma_desc->callback = cppi41_dma_callback;
dma_desc->callback_param = channel;
cppi41_channel->cookie = dma_desc->tx_submit(dma_desc);
cppi41_channel->channel.rx_packet_done = false;
save_rx_toggle(cppi41_channel);
dma_async_issue_pending(dc);
@@ -672,8 +630,6 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
cppi41_channel->port_num = port;
cppi41_channel->is_tx = is_tx;
INIT_LIST_HEAD(&cppi41_channel->tx_check);
INIT_WORK(&cppi41_channel->dma_completion,
cppi_trans_done_work);
musb_dma = &cppi41_channel->channel;
musb_dma->private_data = cppi41_channel;