ARM Sunxi Platform Development
 help / color / mirror / Atom feed
From: Chris Morgan <macroalpha82@gmail.com>
To: Aleksandr Shubin <privatesub2@gmail.com>
Cc: linux-kernel@vger.kernel.org,
	"Conor Dooley" <conor.dooley@microchip.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Chen-Yu Tsai" <wens@csie.org>,
	"Jernej Skrabec" <jernej.skrabec@gmail.com>,
	"Samuel Holland" <samuel@sholland.org>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	"Marc Kleine-Budde" <mkl@pengutronix.de>,
	"Maksim Kiselev" <bigunclemax@gmail.com>,
	"Cristian Ciocaltea" <cristian.ciocaltea@collabora.com>,
	"John Watts" <contact@jookia.org>,
	"Cheo Fusi" <fusibrandon13@gmail.com>,
	linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-riscv@lists.infradead.org
Subject: Re: [PATCH v8 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller
Date: Thu, 9 May 2024 15:32:16 -0500	[thread overview]
Message-ID: <663d32d2.4a0a0220.e5dc.2304@mx.google.com> (raw)
In-Reply-To: <20240131125920.2879433-2-privatesub2@gmail.com>

On Wed, Jan 31, 2024 at 03:59:14PM +0300, Aleksandr Shubin wrote:
> Allwinner's D1, T113-S3 and R329 SoCs have a new pwm
> controller witch is different from the previous pwm-sun4i.
> 
> The D1 and T113 are identical in terms of peripherals,
> they differ only in the architecture of the CPU core, and
> even share the majority of their DT. Because of that,
> using the same compatible makes sense.
> The R329 is a different SoC though, and should have
> a different compatible string added, especially as there
> is a difference in the number of channels.
> 
> D1 and T113s SoCs have one PWM controller with 8 channels.
> R329 SoC has two PWM controllers in both power domains, one of
> them has 9 channels (CPUX one) and the other has 6 (CPUS one).
> 
> Add a device tree binding for them.
> 
> Signed-off-by: Aleksandr Shubin <privatesub2@gmail.com>
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
> ---
>  .../bindings/pwm/allwinner,sun20i-pwm.yaml    | 88 +++++++++++++++++++
>  1 file changed, 88 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
> new file mode 100644
> index 000000000000..716f75776006
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/allwinner,sun20i-pwm.yaml
> @@ -0,0 +1,88 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pwm/allwinner,sun20i-pwm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Allwinner D1, T113-S3 and R329 PWM
> +
> +maintainers:
> +  - Aleksandr Shubin <privatesub2@gmail.com>
> +  - Brandon Cheo Fusi <fusibrandon13@gmail.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: allwinner,sun20i-d1-pwm
> +      - items:
> +          - const: allwinner,sun20i-r329-pwm
> +          - const: allwinner,sun20i-d1-pwm
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#pwm-cells":
> +    const: 3
> +
> +  clocks:
> +    items:
> +      - description: Bus clock
> +      - description: 24 MHz oscillator
> +      - description: APB0 clock
> +
> +  clock-names:
> +    items:
> +      - const: bus
> +      - const: hosc
> +      - const: apb0

Sorry for being late to the party, but I'm starting to look at the
PWM controller for the H700 (H616/T507 are compatible I believe) and
for those devices they use apb1. Would it be possible to just name this
clock "apb" and note it's just the "APB clock"?

Thank you.

> +
> +  resets:
> +    maxItems: 1
> +
> +  allwinner,pwm-channels:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: The number of PWM channels configured for this instance
> +    enum: [6, 9]
> +
> +allOf:
> +  - $ref: pwm.yaml#
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: allwinner,sun20i-r329-pwm
> +
> +    then:
> +      required:
> +        - allwinner,pwm-channels
> +
> +    else:
> +      properties:
> +        allwinner,pwm-channels: false
> +
> +unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#pwm-cells"
> +  - clocks
> +  - clock-names
> +  - resets
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/sun20i-d1-ccu.h>
> +    #include <dt-bindings/reset/sun20i-d1-ccu.h>
> +
> +    pwm: pwm@2000c00 {
> +      compatible = "allwinner,sun20i-d1-pwm";
> +      reg = <0x02000c00 0x400>;
> +      clocks = <&ccu CLK_BUS_PWM>, <&dcxo>, <&ccu CLK_APB0>;
> +      clock-names = "bus", "hosc", "apb0";
> +      resets = <&ccu RST_BUS_PWM>;
> +      #pwm-cells = <0x3>;
> +    };
> +
> +...
> -- 
> 2.25.1
> 

  parent reply	other threads:[~2024-05-09 20:32 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-31 12:59 [PATCH v8 0/3] Add support for Allwinner PWM on D1/T113s/R329 SoCs Aleksandr Shubin
2024-01-31 12:59 ` [PATCH v8 1/3] dt-bindings: pwm: Add binding for Allwinner D1/T113-S3/R329 PWM controller Aleksandr Shubin
2024-01-31 14:52   ` Andre Przywara
2024-01-31 21:22     ` Conor Dooley
2024-02-01 17:48       ` Andre Przywara
2024-02-01 18:59         ` Conor Dooley
2024-01-31 16:34   ` Maxim Kiselev
2024-05-09 20:32   ` Chris Morgan [this message]
2024-01-31 12:59 ` [PATCH v8 2/3] pwm: Add Allwinner's D1/T113-S3/R329 SoCs PWM support Aleksandr Shubin
2024-01-31 13:41   ` Philipp Zabel
2024-02-01  8:49   ` Uwe Kleine-König
2024-02-02 17:32     ` Brandon Cheo Fusi
2024-02-03 15:04   ` kernel test robot
2024-05-01  5:42   ` John Watts
2024-01-31 12:59 ` [PATCH v8 3/3] riscv: dts: allwinner: d1: Add pwm node Aleksandr Shubin
2024-01-31 14:50   ` Andre Przywara

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=663d32d2.4a0a0220.e5dc.2304@mx.google.com \
    --to=macroalpha82@gmail.com \
    --cc=aou@eecs.berkeley.edu \
    --cc=bigunclemax@gmail.com \
    --cc=conor+dt@kernel.org \
    --cc=conor.dooley@microchip.com \
    --cc=contact@jookia.org \
    --cc=cristian.ciocaltea@collabora.com \
    --cc=devicetree@vger.kernel.org \
    --cc=fusibrandon13@gmail.com \
    --cc=jernej.skrabec@gmail.com \
    --cc=krzysztof.kozlowski+dt@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pwm@vger.kernel.org \
    --cc=linux-riscv@lists.infradead.org \
    --cc=linux-sunxi@lists.linux.dev \
    --cc=mkl@pengutronix.de \
    --cc=p.zabel@pengutronix.de \
    --cc=palmer@dabbelt.com \
    --cc=paul.walmsley@sifive.com \
    --cc=privatesub2@gmail.com \
    --cc=robh+dt@kernel.org \
    --cc=samuel@sholland.org \
    --cc=u.kleine-koenig@pengutronix.de \
    --cc=wens@csie.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).