[PATCH v3 0/6] gpio: mvebu: Armada 8K/7K PWM support

[Bartosz Golaszewski]

On Wed, Dec 2, 2020 at 8:15 AM Baruch Siach <baruch at tkos.co.il> wrote:
>
> The gpio-mvebu driver supports the PWM functionality of the GPIO block for
> earlier Armada variants like XP, 370 and 38x. This series extends support to
> newer Armada variants that use CP11x and AP80x, like Armada 8K and 7K.
>
> This series adds adds the 'pwm-offset' property to DT binding. 'pwm-offset'
> points to the base of A/B counter registers that determine the PWM period and
> duty cycle.
>
> The existing PWM DT binding reflects an arbitrary decision to allocate the A
> counter to the first GPIO block, and B counter to the other one. In attempt to
> provide better future flexibility, the new 'pwm-offset' property always points
> to the base address of both A/B counters. The driver code still allocates the
> counters in the same way, but this might change in the future with no change to
> the DT.
>
> Tested AP806 and CP110 (both) on Armada 8040 based system.
>
> I marked this series as v3 to avoid confusion about the probe resource leak
> fix that I posted in a separate patch. The (improved) fix is now patch #1 in
> this series. That is the only change in v3.
>
> Baruch Siach (6):
>   gpio: mvebu: fix potential user-after-free on probe
>   gpio: mvebu: update Armada XP per-CPU comment
>   gpio: mvebu: switch pwm duration registers to regmap
>   gpio: mvebu: add pwm support for Armada 8K/7K
>   arm64: dts: armada: add pwm offsets for ap/cp gpios
>   dt-bindings: ap806: document gpio pwm-offset property
>
>  .../arm/marvell/ap80x-system-controller.txt   |   8 +
>  arch/arm64/boot/dts/marvell/armada-ap80x.dtsi |   3 +
>  arch/arm64/boot/dts/marvell/armada-cp11x.dtsi |  10 ++
>  drivers/gpio/gpio-mvebu.c                     | 170 +++++++++++-------
>  4 files changed, 128 insertions(+), 63 deletions(-)
>
> --
> 2.29.2
>

I applied the first three patches. For the last three - you'll need to
resend them with Rob Herring in Cc for an ack on the new property.

Bartosz