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authorIdo Yariv <ido@wizery.com>2011-03-01 14:14:40 +0100
committerLuciano Coelho <coelho@ti.com>2011-03-03 15:10:46 +0100
commit393fb560d328cc06e6a5c7b7473901ad724f82e7 (patch)
tree2359a7db27abdd288269db547050eafc210ac5db /drivers/net/wireless/wl12xx/ps.h
parentwl12xx: Do end-of-transactions transfers only if needed (diff)
downloadlinux-393fb560d328cc06e6a5c7b7473901ad724f82e7.tar.xz
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wl12xx: Change claiming of the SDIO bus
The SDIO bus is claimed and released for each SDIO transaction. In addition to the few CPU cycles it takes to claim and release the bus, it may also cause undesired side effects such as the MMC host stopping its internal clocks. Since only the wl12xx_sdio driver drives this SDIO card, it is safe to claim the SDIO host once (on power on), and release it only when turning the power off. This patch was inspired by Juuso Oikarinen's (juuso.oikarinen@nokia.com) patch "wl12xx: Change claiming of the (SDIO) bus". Signed-off-by: Ido Yariv <ido@wizery.com> Reviewed-by: Luciano Coelho <coelho@ti.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/ps.h')
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