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| author | Cristian Birsan <cristian.birsan@microchip.com> | 2016-02-11 08:58:17 -0700 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2016-02-17 16:32:50 +0200 |
| commit | bba40e6948b94cba71965285fbac31bd078c024a (patch) | |
| tree | ab1d144ce0f23c2e2aadbc442f17ccbaedb93518 | |
| parent | 96c7de4ff41c2ed6da43141a4deb922de09617d0 (diff) | |
| download | linux-bba40e6948b94cba71965285fbac31bd078c024a.tar.gz linux-bba40e6948b94cba71965285fbac31bd078c024a.tar.bz2 linux-bba40e6948b94cba71965285fbac31bd078c024a.zip | |
usb: musb: Fix DMA desired mode for Mentor DMA engine
Commit 754fe4a92c07 ("usb: musb: Remove ifdefs for TX DMA for musb_host.c")
introduces a problem setting the desired channel mode for the Mentor DMA
engine.
There is a case where an address is incorrectly assigned to the DMA
channel desired mode when it should instead be assigned the actual mode
value. This results in the value of channel->desired_mode not being
correct.
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 795a45b1b25b..79d081883628 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -662,7 +662,7 @@ static int musb_tx_dma_set_mode_mentor(struct dma_controller *dma, csr &= ~(MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAMODE); csr |= MUSB_TXCSR_DMAENAB; /* against programmer's guide */ } - channel->desired_mode = mode; + channel->desired_mode = *mode; musb_writew(epio, MUSB_TXCSR, csr); return 0; |