usb: renesas_usbhs: fifo: request DMAEngine once

Browse source

DMAEngine uses IRQ if dma_request_channel() was called,
and it is using devm_request_irq() today,
OTOH, dma_request_channel() will be called when each
USB connection happened on this driver.
This means same IRQ will be requested many times
whenever each USB connected,
and this IRQ isn't freed when USB disconnected.
Request DMAEngine once.

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

...

This commit is contained in:

Kuninori Morimoto 2013-12-10 19:09:02 -08:00 • committed by Felipe Balbi

parent 25acdd08fd

commit 1b2e21b082

1 changed files with 4 additions and 14 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

18

drivers/usb/renesas_usbhs/fifo.c

View file