From ae79c19049b75af476adcbcfda6fc29bd93fc6f8 Mon Sep 17 00:00:00 2001
From: Andreas Schallenberg <Andreas.Schallenberg@3alitytechnica.com>
Date: Wed, 9 May 2012 09:46:17 +0200
Subject: [PATCH] Add support for TCA6424A

This patch extends the PCA953x driver to support TI's TCA6424A 24 bit I2C I/O expander. The patch is based on code by Michele
Bevilacqua.

Changes in v2:
- Compare ngpio against 24 in both places, not >16
- Larger datatype now u32 instead of uint.
  Bit fields not used for struct members since their address is taken.
- Be precise: TCA6424A (untested for older TCA6424)

Signed-off-by: Andreas Schallenberg<Andreas.Schallenberg@3alitytechnica.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
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