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895fe4537c
The PWM chip on PXA only has a single output. Back when the device tree binding was defined it was considered a good idea to not pass the PWM line index as is done for all other PWM types as it would be always zero anyhow and so doesn't add any value. However for consistency reasons it is nice when all PWMs use the same binding. For that reason let of_pwm_single_xlate() (i.e. the function that implements the PXA behaviour) behave in the same way as of_pwm_xlate_with_flags() for 3 (or more) parameters. With that in place, the pxa-pwm binding can be updated to #pwm-cells = <3> without breaking old device trees that stick to #pwm-cells = <1>. Reviewed-by: Herve Codina <herve.codina@bootlin.com> Tested-by: Duje Mihanović <duje.mihanovic@skole.hr> Reviewed-by: Daniel Mack <daniel@zonque.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/b33a84d3f073880e94fc303cd32ebe095eb5ce46.1738842938.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.