[U-Boot] [PATCH v3 1/5] gpio: Add driver for TI PCF8575 I2C GPIO expander

Mugunthan V N mugunthanvnm at ti.com
Tue Aug 2 08:47:23 CEST 2016


On Tuesday 02 August 2016 10:14 AM, Vignesh R wrote:
> TI's PCF8575 is a 16-bit I2C GPIO expander.The device features a
> 16-bit quasi-bidirectional I/O ports. Each quasi-bidirectional I/O can
> be used as an input or output without the use of a data-direction
> control signal. The I/Os should be high before being used as inputs.
> Read the device documentation for more details[1].
> 
> This driver is based on pcf857x driver available in Linux v4.7 kernel.
> It supports basic reading and writing of gpio pins.
> 
> [1] http://www.ti.com/lit/ds/symlink/pcf8575.pdf
> 
> Signed-off-by: Vignesh R <vigneshr at ti.com>
> Reviewed-by: Tom Rini <trini at konsulko.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>

Reviewed-by: Mugunthan V N <mugunthanvnm at ti.com>

Regards
Mugunthan V N


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