From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 22 Apr 2013 10:02:24 +0000 (+0200)
Subject: video: ssd1307fb: Speed up the communication with the controller
X-Git-Tag: v3.11-rc1~66^2~7^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3394e645a88c722396fc1b03c31a3ffc158744ad;p=pandora-kernel.git

video: ssd1307fb: Speed up the communication with the controller

The code until now was sending only 1pixel-wide page segment at once,
and started a new transfer every time. It has proven very inefficient,
because for one byte to display on the screen, we had to actually send 3
bytes over I2C: the address, the type of data that was going to the
controller, and then the actual data.

This patches changes that by sending a whole page at once, avoiding most
of this expensive overhead.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---

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