Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1629343

Re: [PATCH v6 1/4] gpio: mvebu: Add limited PWM support

Show all headers | View raw

On Fri, Apr 14, 2017 at 5:40 PM, Ralph Sennhauser
<ralph.sennhauser@gmail.com> wrote:

> From: Andrew Lunn <andrew@lunn.ch>
>
> Armada 370/XP devices can 'blink' GPIO lines with a configurable on
> and off period. This can be modelled as a PWM.
>
> However, there are only two sets of PWM configuration registers for
> all the GPIO lines. This driver simply allows a single GPIO line per
> GPIO chip of 32 lines to be used as a PWM. Attempts to use more return
> EBUSY.
>
> Due to the interleaving of registers it is not simple to separate the
> PWM driver from the GPIO driver. Thus the GPIO driver has been
> extended with a PWM driver.
>
> Signed-off-by: Andrew Lunn <andrew@lunn.ch>
> URL: https://patchwork.ozlabs.org/patch/427287/
> URL: https://patchwork.ozlabs.org/patch/427295/
> [Ralph Sennhauser:
>   * Port forward
>   * Merge PWM portion into gpio-mvebu.c
>   * Switch to atomic PWM API
>   * Add new compatible string marvell,armada-370-xp-gpio
>   * Update and merge documentation patch
>   * Update MAINTAINERS]
> Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
> Tested-by: Andrew Lunn <andrew@lunn.ch>
> Acked-by: Thierry Reding <thierry.reding@gmail.com>
> Acked-by: Rob Herring <robh@kernel.org>

Patch applied.

Yours,
Linus Walleij

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH v6 1/4] gpio: mvebu: Add limited PWM support Ralph Sennhauser <ralph.sennhauser@gmail.com> - 2017-04-14 17:50 +0200
  Re: [PATCH v6 1/4] gpio: mvebu: Add limited PWM support Linus Walleij <linus.walleij@linaro.org> - 2017-04-24 11:20 +0200

csiph-web