Re: [PATCH v3] hw: gpio: introduce pcf8574 driver

[Philippe Mathieu-Daudé]

On 11/3/24 10:58, Dmitriy Sharikhin wrote:
> NXP PCF8574 and compatible ICs are simple I2C GPIO expanders.
> PCF8574 incorporates quasi-bidirectional IO, and simple
> communication protocol, when IO read is I2C byte read, and
> IO write is I2C byte write. User can think of it as
> open-drain port, when line high state is input and line low
> state is output.
>
> Signed-off-by: Dmitrii Sharikhin <d.sharikhin@yadro.com>

If a patch is reviewed, please carry reviewers' tag:
https://www.qemu.org/docs/master/devel/submitting-a-patch.html#proper-use-of-reviewed-by-tags-can-aid-review

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>

> ---
>   MAINTAINERS               |   6 ++
>   hw/gpio/Kconfig           |   4 +
>   hw/gpio/meson.build       |   1 +
>   hw/gpio/pcf8574.c         | 162 ++++++++++++++++++++++++++++++++++++++
>   include/hw/gpio/pcf8574.h |  15 ++++
>   5 files changed, 188 insertions(+)
>   create mode 100644 hw/gpio/pcf8574.c
>   create mode 100644 include/hw/gpio/pcf8574.h