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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2012-11-07 01:15:09 +0100
committerFelipe Balbi <balbi@ti.com>2012-11-08 14:46:06 +0100
commit1c90ee0b3e30235165180a1a8ee3fb3cbe47d295 (patch)
treeb1b820bf48e58064190d4b1d3fafba506358191b /arch/arm/plat-s3c24xx
parentusb: renesas_usbhs: host: add endpoint user counter (diff)
downloadlinux-1c90ee0b3e30235165180a1a8ee3fb3cbe47d295.tar.xz
linux-1c90ee0b3e30235165180a1a8ee3fb3cbe47d295.zip
usb: renesas_usbhs: use transfer counter if IN direction bulk pipe
received data will break if it was bulk pipe and large data size, because pipe kept BUF PID even though it doesn't have enough buffer. To avoid this issue, renesas_usbhs can use transfer counter. Pipe PID will be NAK if it didn't have enough buffer by this patch. renesas_usbhs has strange address mapping. Thus, it is difficult to calculate transfer counter setting address. This patch use fixed table for it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'arch/arm/plat-s3c24xx')
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