mbox series

[v4,0/3] gpio: mvebu: Armada 8K/7K PWM support

Message ID cover.1607601615.git.baruch@tkos.co.il
Headers show
Series gpio: mvebu: Armada 8K/7K PWM support | expand

Message

Baruch Siach Dec. 10, 2020, 12:15 p.m. UTC
This series makes two changes to v3:

  * Remove patches that are in LinusW linux-gpio for-next and fixes

  * Rename the 'pwm-offset' property to 'marvell,pwm-offset' as suggested by 
    Rob Herring

The original cover letter follows (with DT property name updated).

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 'marvell,pwm-offset' property to DT binding. 
'marvell,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 'marvell,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.

Baruch Siach (3):
  gpio: mvebu: add pwm support for Armada 8K/7K
  arm64: dts: armada: add pwm offsets for ap/cp gpios
  dt-bindings: ap806: document marvell,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                     | 101 ++++++++++++------
 4 files changed, 89 insertions(+), 33 deletions(-)

Comments

Russell King (Oracle) Jan. 4, 2021, 9:24 a.m. UTC | #1
On Thu, Dec 10, 2020 at 02:15:57PM +0200, Baruch Siach wrote:
> This series makes two changes to v3:
> 
>   * Remove patches that are in LinusW linux-gpio for-next and fixes
> 
>   * Rename the 'pwm-offset' property to 'marvell,pwm-offset' as suggested by 
>     Rob Herring
> 
> The original cover letter follows (with DT property name updated).
> 
> 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 'marvell,pwm-offset' property to DT binding. 
> 'marvell,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 'marvell,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.

Did you see the patches I sent during the last year doing this and
adding support for the fan on the GT-8k?
Bartosz Golaszewski Jan. 4, 2021, 9:52 a.m. UTC | #2
On Mon, Jan 4, 2021 at 10:43 AM Baruch Siach <baruch@tkos.co.il> wrote:
>
> Hi Linus,
>
> On Mon, Jan 04 2021, Linus Walleij wrote:
> > this series seem to have missed the previous merge window due to
> > remaining comments, will you rebase on v5.11-rc1 and resend them?
>
> This series applies cleanly on v5.11-rc2. I have just tested.
>
> As far as I understand there are no remaining comments. Rob acked the
> DT binding change.
>
> Would you like me to post the series again anyway?
>
> Thanks,
> baruch
>

Yes, please resend it with RESEND PATCH in the tag.

Bartosz