From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 17 Oct 2012 06:33:30 +0000 (-0700)
Subject: usb: renesas_usbhs: fixup dma transfer stall
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1cb60156defa4f23d5318ea1ddd400f25b2d0ce5;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

usb: renesas_usbhs: fixup dma transfer stall

renesas_usbhs driver can switch DMA/PIO transfer by using handler,
and each handler have push/pop direction.
But unfortunately, current dma push handler didn't a path
which calls usbhs_pipe_enable(). Thus, dma transfer never happened.
this patch fixes it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 143c4e9e1be4..c021b202c0f3 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -795,6 +795,7 @@ static void xfer_work(struct work_struct *work)
 	dev_dbg(dev, "  %s %d (%d/ %d)\n",
 		fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
 
+	usbhs_pipe_enable(pipe);
 	usbhsf_dma_start(pipe, fifo);
 	dma_async_issue_pending(chan);
 }