Re: [PATCH v4 0/2] pwm: Introduce pwm driver for the Loongson family chips

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For the whole series,

Acked-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>

On Mon, May 27, 2024 at 3:51 PM Binbin Zhou <zhoubinbin@xxxxxxxxxxx> wrote:
>
> Hi all:
>
> This patchset introduce a generic PWM framework driver for Loongson family.
> Each PWM has one pulse width output signal and one pulse input signal to be measured.
>
> It can be found on Loongson-2K series cpus and Loongson LS7A bridge chips.
>
> Thanks.
>
> -------
> V4:
> patch (2/2):
>  - Rebase on pwm/for-next;
>  - Addressed Uwe's review comments, thanks.
>    - Make use of devm_pwmchip_alloc() function;
>    - Add Limitations description;
>    - Add LOONGSON_ prefix for Loongson pwm register defines;
>    - Keep regs written only once;
>    - Rewrite duty/period calculation;
>    - Add dev_err_probe() in .probe();
>    - Put the parameters used by PM into a separate
>      structure(pwm_loongson_suspend_store);
>    - Fix some code style.
>
> Link to V3:
> https://lore.kernel.org/linux-pwm/cover.1713164810.git.zhoubinbin@xxxxxxxxxxx/
>
> V3:
> patch (1/2):
>  - Add Reviewed-by tag from Krzysztof, thanks.
> patch (2/2):
>  - Several code stlye adjustments, such as line breaks.
>
> Link to V2:
> https://lore.kernel.org/all/cover.1712732719.git.zhoubinbin@xxxxxxxxxxx/
>
> v2:
> - Remove the dts-related patches and update dts at once after all
> relevant drivers are complete.
> patch (1/2):
>  - The dt-binding filename should match compatible, rename it as
>    loongson,ls7a-pwm.yaml;
>  - Update binding description;
>  - Add description for each pwm cell;
>  - Drop '#pwm-cells' from required, for pwm.yaml makes it required already.
>
> Link to v1:
> https://lore.kernel.org/linux-pwm/cover.1711953223.git.zhoubinbin@xxxxxxxxxxx/
>
> Binbin Zhou (2):
>   dt-bindings: pwm: Add Loongson PWM controller
>   pwm: Add Loongson PWM controller support
>
>  .../bindings/pwm/loongson,ls7a-pwm.yaml       |  66 ++++
>  MAINTAINERS                                   |   7 +
>  drivers/pwm/Kconfig                           |  12 +
>  drivers/pwm/Makefile                          |   1 +
>  drivers/pwm/pwm-loongson.c                    | 295 ++++++++++++++++++
>  5 files changed, 381 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml
>  create mode 100644 drivers/pwm/pwm-loongson.c
>
> --
> 2.43.0
>
>





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