From: Sebastian Andrzej Siewior Date: Tue, 30 Oct 2012 18:52:25 +0000 (+0100) Subject: usb: musb: Perform only write access on MUSB_INTRRXE X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~82^2~61^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af5ec14d40e0da1de17fcca2b41c76fae5c2cb9d;p=pandora-kernel.git usb: musb: Perform only write access on MUSB_INTRRXE This is part of the workaround for AM35x advisory Advisory 1.1.20. The advisory says that the IPSS bridge can't handle 8 & 16 bit read access. An 16bit read access to MUSB_INTRRXE results in an 32bit read access which also reads INTRUSB and therefore may lose interrupts. This patch uses a shadow register of MUSB_INTRRXE so we only perform write access to it. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Felipe Balbi --- Reading git-diff-tree failed