From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 16 Oct 2009 10:42:53 +0000 (-0300)
Subject: V4L/DVB (13179): gspca_ov519: cache sensor regs to avoid unnecessary slow i2c reads... 
X-Git-Tag: v2.6.33-rc1~338^2~242
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb1f9020609ead93fcec4b0dd02511a46294c147;p=pandora-kernel.git

V4L/DVB (13179): gspca_ov519: cache sensor regs to avoid unnecessary slow i2c reads / writes

Cache sensor regs to avoid unnecessary slow i2c reads / writes, this speeds
up sd_start a bit with most bridges and a lot (from 5 seconds down to 0.3
seconds) with W996xCF cams, as this avoids very slow bit bang IO over
USB i2c reads.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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