[PATCH RESEND v5 1/2] PWM: PXA: add device tree support to PWM driver

Thierry Reding thierry.reding at gmail.com
Tue Dec 3 05:17:15 EST 2013


On Sat, Sep 21, 2013 at 12:19:33PM -0700, Mike Dunn wrote:
> This patch adds device tree support to the PXA's PWM driver.  Nothing
> needs to be extracted from the device tree node by the PWM device.
> Client devices need only specify the period; the per-chip index is
> implicitly zero because one device node must be present for each PWM
> output in use.  This approach is more convenient due to the wide
> variability in the number of PWM channels present across the various PXA
> variants, and is made possible by the fact that the register sets for
> each PWM channel are segregated from each other.  An of_xlate() method
> is added to parse this single-cell node.  The existing ID table is
> reused for the match table data.
> 
> Tested on a Palm Treo 680 (both platform data and DT cases).
> 
> Signed-off-by: Mike Dunn <mikedunn at newsguy.com>
> ---
>  Documentation/devicetree/bindings/pwm/pxa-pwm.txt | 30 +++++++++++++
>  drivers/pwm/pwm-pxa.c                             | 52 ++++++++++++++++++++++-
>  2 files changed, 81 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/pwm/pxa-pwm.txt

Hi Mike,

It looks like this fell through the cracks. Is this patch still the
latest one you have? Should it still be applied?

Thierry
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