linux-kernel - Re: [PATCH v2] dt-bindings: pwm: mediatek: Add compatible for MT7986

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Date:   Thu, 17 Nov 2022 12:40:42 +0100
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     linux-pwm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Thierry Reding <thierry.reding@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Fabien Parent <fparent@...libre.com>,
        Zhi Mao <zhi.mao@...iatek.com>,
        Sam Shih <sam.shih@...iatek.com>
Subject: Re: [PATCH v2] dt-bindings: pwm: mediatek: Add compatible for MT7986

On Mon, Oct 31, 2022 at 07:23:28PM +0000, Daniel Golle wrote:
> Add new compatible string for MT7986 PWM and list compatible units for
> existing entries. Also make sure the number of pwm1-X clocks is listed
> for all supported units.
> 
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> ---
>  .../devicetree/bindings/pwm/pwm-mediatek.txt  | 20 +++++++++++--------
>  1 file changed, 12 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
> index 554c96b6d0c3e0..952a338e06e7c5 100644
> --- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
> +++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
> @@ -2,14 +2,15 @@ MediaTek PWM controller
>  
>  Required properties:
>   - compatible: should be "mediatek,<name>-pwm":
> -   - "mediatek,mt2712-pwm": found on mt2712 SoC.
> +   - "mediatek,mt2712-pwm", "mediatek,mt6795-pwm": found on mt2712 SoC.
>     - "mediatek,mt6795-pwm": found on mt6795 SoC.
> -   - "mediatek,mt7622-pwm": found on mt7622 SoC.
> -   - "mediatek,mt7623-pwm": found on mt7623 SoC.
> +   - "mediatek,mt7622-pwm", "mediatek,mt8195-pwm", "mediatek,mt8183-pwm", "mediatek,mt7986-pwm": found on mt7622 SoC.
> +   - "mediatek,mt7623-pwm", "mediatek,mt7628-pwm": found on mt7623 SoC.
>     - "mediatek,mt7628-pwm": found on mt7628 SoC.
>     - "mediatek,mt7629-pwm": found on mt7629 SoC.
> -   - "mediatek,mt8183-pwm": found on mt8183 SoC.
> -   - "mediatek,mt8195-pwm", "mediatek,mt8183-pwm": found on mt8195 SoC.
> +   - "mediatek,mt7986-pwm": found on mt7986 SoC.
> +   - "mediatek,mt8183-pwm", "mediatek,mt7986-pwm": found on mt8183 SoC.
> +   - "mediatek,mt8195-pwm", "mediatek,mt8183-pwm", "mediatek,mt7986-pwm": found on mt8195 SoC.
>     - "mediatek,mt8365-pwm": found on mt8365 SoC.
>     - "mediatek,mt8516-pwm": found on mt8516 SoC.
>   - reg: physical base address and length of the controller's registers.
> @@ -20,11 +21,14 @@ Required properties:
>                  has no clocks
>     - "top": the top clock generator
>     - "main": clock used by the PWM core
> +   - "pwm1"  : the PWM1 clock for mt7629
> +   - "pwm1-2": the two per PWM clocks for mt7986
>     - "pwm1-3": the three per PWM clocks for mt8365
> -   - "pwm1-8": the eight per PWM clocks for mt2712
> +   - "pwm1-4": the four per PWM clocks for mt7628 or mt8183
> +   - "pwm1-5": the five per PWM clocks for mt7623 or mt8516
>     - "pwm1-6": the six per PWM clocks for mt7622
> -   - "pwm1-5": the five per PWM clocks for mt7623
> -   - "pwm1"  : the PWM1 clock for mt7629
> +   - "pwm1-7": the seven per PWM clocks for mt6795
> +   - "pwm1-8": the eight per PWM clocks for mt2712
>   - pinctrl-names: Must contain a "default" entry.
>   - pinctrl-0: One property must exist for each entry in pinctrl-names.
>     See pinctrl/pinctrl-bindings.txt for details of the property values.

I have no concerns. However converting that to yaml would be a nice
thing. Also I didn't notice an effort to adapt the dts files
accordingly. But that might be because I wasn't on Cc: for these (or I
might have missed them despite the Cc: :-)

I'll mark this patch as handled-elsewhere in the PWM patchwork.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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