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| author | Chris Packham <judge.packham@gmail.com> | 2010-12-19 10:12:13 +0000 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2011-01-10 07:53:00 +0100 |
| commit | 5dec49ca2273bcf181071bc1c97a9901b155ebc1 (patch) | |
| tree | 2b00e45e8f268dcd9b872525591d8460d434462f /board/sbc8548/sbc8548.c | |
| parent | 89c95f0cd3f8140f3b8a82a22a6a144c148d09c6 (diff) | |
| download | u-boot-imx-5dec49ca2273bcf181071bc1c97a9901b155ebc1.zip u-boot-imx-5dec49ca2273bcf181071bc1c97a9901b155ebc1.tar.gz u-boot-imx-5dec49ca2273bcf181071bc1c97a9901b155ebc1.tar.bz2 | |
pca953x: support 16-pin devices
This adds support for for the PCA9535/PCA9539 family of gpio devices which
have 16 output pins.
To let the driver know which devices are 16-pin it is necessary to define
CONFIG_SYS_I2C_PCA953X_WIDTH in your board config file. This is used to
create an array of {chip, ngpio} tuples that are used to determine the
width of a particular chip. For backwards compatibility it is assumed that
any chip not defined in CONFIG_SYS_I2C_PCA953X_WIDTH has 8 pins.
Acked-by: Peter Tyser <ptyser@xes-inc.com>
Tested-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Diffstat (limited to 'board/sbc8548/sbc8548.c')
0 files changed, 0 insertions, 0 deletions