On Tuesday, February 14, 2017 5:19:11 PM CET Chunyan Zhang wrote:
> static const struct of_device_id serial_ids[] = {
> - {.compatible = "sprd,sc9836-uart",},
> + {.compatible = "sprd,sc-uart",},
> {}
We really need this to be specific, in case Spreadtrum ever
makes a slightly different UART that is not 100% compatible
with this one. Also, you can't remove the string you already have,
only add to it.
Normally when you have a new chip that is compatible with one
we already have a driver for, we mark the device as compatible
with the old one and avoid having to change the driver, e.g.
compatible = "sprd,sc9995-uart", "sprd,sc9836-uart";
This way, the driver could later be changed to handle anything
that is compatible with sc9995 differently from sc9836, but
by default it would match the original string.
Arnd
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