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usb: musb: host: move DMA engine check from musb_tx_dma_set_mode_cppi_tusb() to its caller 

Commit 754fe4a92c ("usb: musb: Remove ifdefs for TX DMA for musb_host.c")
looks incomplete: the DMA engine checks are  done outside the Mentor/UX500
handler  but inside the CPPI/TUSB handler. Move the checks out of the CPPI/
TUSB handler into its caller, musb_tx_dma_program().

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
[b-liu@ti.com: revise subject prefix]
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergei Shtylyov 2016-05-31 10:05:05 -05:00 committed by Greg Kroah-Hartman
parent dbac5d07d1
commit 858b9be7fd
1 changed files with 3 additions and 4 deletions
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7
drivers/usb/musb/musb_host.c
View File

@ -684,9 +684,6 @@ static int musb_tx_dma_set_mode_cppi_tusb(struct dma_controller *dma,
{
struct dma_channel *channel = hw_ep->tx_channel;
if (!is_cppi_enabled(hw_ep->musb) && !tusb_dma_omap(hw_ep->musb))
return -ENODEV;
channel->actual_len = 0;
/*
@ -710,9 +707,11 @@ static bool musb_tx_dma_program(struct dma_controller *dma,
if (musb_dma_inventra(hw_ep->musb) || musb_dma_ux500(hw_ep->musb))
res = musb_tx_dma_set_mode_mentor(dma, hw_ep, qh, urb,
offset, &length, &mode);
else
else if (is_cppi_enabled(hw_ep->musb) || tusb_dma_omap(hw_ep->musb))
res = musb_tx_dma_set_mode_cppi_tusb(dma, hw_ep, qh, urb,
offset, &length, &mode);
else
return false;
if (res)
return false;