On 1/24/2014 11:13 PM, Sergei Shtylyov wrote:
Hello.

On 24-01-2014 18:14, George Cherian wrote:

Enable the isochrounous IN handling for AM335x HOST.
Reprogram CPPI to receive consecutive ISOCH frames in the same URB.

Sigh, I knew CPPI ISO path was broken for years but didn't have time to fix it. :-(

Signed-off-by: George Cherian <george.cher...@ti.com>
--- git rebase
  drivers/usb/musb/musb_host.c | 29 ++++++++++++++++++++++++++---
  1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index ed45572..5b6482c 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1689,9 +1689,11 @@ void musb_host_rx(struct musb *musb, u8 epnum)
              | MUSB_RXCSR_H_AUTOREQ
              | MUSB_RXCSR_AUTOCLEAR
              | MUSB_RXCSR_RXPKTRDY);
+

   Not needed.

          musb_writew(hw_ep->regs, MUSB_RXCSR, val);

-#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA)
+#if defined(CONFIG_USB_INVENTRA_DMA) || defined(CONFIG_USB_UX500_DMA) || \
+    defined(CONFIG_USB_TI_CPPI41_DMA)

   The DaVinci CPPI 3.0 should probably also be included here...

Should'nt that be a separate patch as this one is specific to AM335X.
          if (usb_pipeisoc(pipe)) {
              struct usb_iso_packet_descriptor *d;

@@ -1706,8 +1708,28 @@ void musb_host_rx(struct musb *musb, u8 epnum)

              if (++qh->iso_idx >= urb->number_of_packets)
                  done = true;
-            else
+            else {

If you're making the *else* arm use {}, you should make all the other arms of *if* statement also have them -- see Documentation/CodingStyle.

Will fix in v2!!!

WBR, Sergei



--
-George

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