| Message ID | 1460498640-8350-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 540e688..157a9f9 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -934,6 +934,7 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) pkt->trans = len; + usbhsf_tx_irq_ctrl(pipe, 0); INIT_WORK(&pkt->work, xfer_work); schedule_work(&pkt->work);
This is a note to let you know that I have just added a patch titled usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11-ckt39. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.13.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ---8<------------------------------------------------------------ From fbb06eca4fc18074a4bb8a2a442c03d40fab1354 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Date: Thu, 10 Mar 2016 11:30:15 +0900 Subject: usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer commit 6490865c67825277b29638e839850882600b48ec upstream. This patch adds a code to surely disable TX IRQ of the pipe before starting TX DMAC transfer. Otherwise, a lot of unnecessary TX IRQs may happen in rare cases when DMAC is used. Fixes: e73a989 ("usb: renesas_usbhs: add DMAEngine support") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- drivers/usb/renesas_usbhs/fifo.c | 1 + 1 file changed, 1 insertion(+) -- 2.7.4