| commit | 409ba9e7c023bdbfd2ecab960532523124de5c81 | |
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
| Tue, 26 Apr 2011 00:21:35 +0000 (26 09:21 +0900) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Sat, 30 Apr 2011 00:24:31 +0000 (29 17:24 -0700) | ||
| tree | 08d53974e920ba7b49301286bf4b6eccfac2be30 | treesnapshot (tar.gz zip) |
| parent | 45e13e6e0aa954af2d4779a07262f4c12d6f032f | commitdiff |
usb: renesas_usbhs: don't re-allocation pipe buffer
Because pipe buffer allocation is very picky and difficult,
current renesas_usbhs driver is not caring pipe re-allocation.
In this situation, driver will create new pipe without caring old pipe
if "usbhsg_ep_enable" is called after "usbhsg_ep_disable" on current driver.
This mean the limited pipe and buffer will be used as waste.
But it is possible to re-use same buffer to same pipe.
By this patch, driver will initialize pipe when it detected new connection or
new gadget, and doesn't try re-allocation for same pipe in above case.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Because pipe buffer allocation is very picky and difficult,
current renesas_usbhs driver is not caring pipe re-allocation.
In this situation, driver will create new pipe without caring old pipe
if "usbhsg_ep_enable" is called after "usbhsg_ep_disable" on current driver.
This mean the limited pipe and buffer will be used as waste.
But it is possible to re-use same buffer to same pipe.
By this patch, driver will initialize pipe when it detected new connection or
new gadget, and doesn't try re-allocation for same pipe in above case.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/usb/renesas_usbhs/mod_gadget.c | diffblobblamehistory |