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Change #6233

Category None
Changed by Chuanhong Guo <gch981213ohnoyoudont@gmail.com>
Changed at Mon 10 Feb 2020 03:59:20
Repository https://git.openwrt.org/openwrt/openwrt.git
Branch master
Revision 9c19c35d1ee3af7dc4f173871ab774d8d30a4e18

Comments

ath79: restore pin state on probe for ar934x-spi
If bootloader doesn't terminate its last spi operation properly
before starting kernel, our first transfer in kernel becomes a
continuous transfer to that request instead of a new one.
Fix this flaw by restoring IOC register, which restored all pin
state to default.

Fixes: ebf0d8dade ("ath79: add new ar934x spi driver")
Reported-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>

Changed files