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From: Rob Herring <robh@kernel.org>
To: Lubomir Rintel <lkundrak@v3.sk>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <maz@kernel.org>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Alessandro Zummo <a.zummo@towertech.it>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mark Brown <broonie@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Andrew Lunn <andrew@lunn.ch>,
	Gregory Clement <gregory.clement@bootlin.com>,
	Daniel Mack <daniel@zonque.org>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org,
	linux-media@vger.kernel.org, linux-mmc@vger.kernel.org,
	linux-rtc@vger.kernel.org, linux-serial@vger.kernel.org,
	linux-spi@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [PATCH 21/28] dt-bindings: gpio: Convert mrvl-gpio to json-schema
Date: Fri, 27 Mar 2020 13:28:20 -0600
Message-ID: <20200327192820.GA8577@bogus> (raw)
In-Reply-To: <20200317093922.20785-22-lkundrak@v3.sk>

On Tue, Mar 17, 2020 at 10:39:15AM +0100, Lubomir Rintel wrote:
> This converts the mrvl-gpio binding to DT schema format using json-schema.
> 
> Various fixes were done during the conversion, such as adding more
> properties that are in fact mandatory or extending the examples to
> include child nodes with extra GPIO blocks.

Ugg, not how I would have done this. Differences in register layout 
should be implied by the compatible strings. But I guess we have to live 
with it now.

> The compatible strings are a mess. It is not clear why so many of them
> are needed; the driver doesn't really seem to differentiate between the
> models. Some of them, like marvell,pxa93x-gpio and marvell,pxa1928-gpio
> are not used at all, so it's not known how many interrupts they utilize.
> On the other hand, mrvl,pxa-gpio has been seen in the tree, but it
> doesn't end up in any actual DTB file.

I added pxa1928 and then work on it ended. I think it is safe to remove, 
but I dug up dts file and it is 1 irq.

> In any case -- the schema merely copies whatever was in the original
> binding document, so it's hopefully no more wrong that the original.
> 
> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
> ---
>  .../devicetree/bindings/gpio/mrvl-gpio.txt    |  48 -----
>  .../devicetree/bindings/gpio/mrvl-gpio.yaml   | 173 ++++++++++++++++++
>  2 files changed, 173 insertions(+), 48 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
>  create mode 100644 Documentation/devicetree/bindings/gpio/mrvl-gpio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt b/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
> deleted file mode 100644
> index 30fd2201b3d4c..0000000000000
> --- a/Documentation/devicetree/bindings/gpio/mrvl-gpio.txt
> +++ /dev/null
> @@ -1,48 +0,0 @@
> -* Marvell PXA GPIO controller
> -
> -Required properties:
> -- compatible : Should be "intel,pxa25x-gpio", "intel,pxa26x-gpio",
> -		"intel,pxa27x-gpio", "intel,pxa3xx-gpio",
> -		"marvell,pxa93x-gpio", "marvell,mmp-gpio",
> -		"marvell,mmp2-gpio" or marvell,pxa1928-gpio.
> -- reg : Address and length of the register set for the device
> -- interrupts : Should be the port interrupt shared by all gpio pins.
> -  There're three gpio interrupts in arch-pxa, and they're gpio0,
> -  gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp,
> -  gpio_mux.
> -- interrupt-names : Should be the names of irq resources. Each interrupt
> -  uses its own interrupt name, so there should be as many interrupt names
> -  as referenced interrupts.
> -- interrupt-controller : Identifies the node as an interrupt controller.
> -- #interrupt-cells: Specifies the number of cells needed to encode an
> -  interrupt source.
> -- gpio-controller : Marks the device node as a gpio controller.
> -- #gpio-cells : Should be two.  The first cell is the pin number and
> -  the second cell is used to specify flags. See gpio.txt for possible
> -  values.
> -
> -Example for a MMP platform:
> -
> -	gpio: gpio@d4019000 {
> -		compatible = "marvell,mmp-gpio";
> -		reg = <0xd4019000 0x1000>;
> -		interrupts = <49>;
> -		interrupt-names = "gpio_mux";
> -		gpio-controller;
> -		#gpio-cells = <2>;
> -		interrupt-controller;
> -		#interrupt-cells = <1>;
> -      };
> -
> -Example for a PXA3xx platform:
> -
> -	gpio: gpio@40e00000 {
> -		compatible = "intel,pxa3xx-gpio";
> -		reg = <0x40e00000 0x10000>;
> -		interrupt-names = "gpio0", "gpio1", "gpio_mux";
> -		interrupts = <8 9 10>;
> -		gpio-controller;
> -		#gpio-cells = <0x2>;
> -		interrupt-controller;
> -		#interrupt-cells = <0x2>;
> -	};
> diff --git a/Documentation/devicetree/bindings/gpio/mrvl-gpio.yaml b/Documentation/devicetree/bindings/gpio/mrvl-gpio.yaml
> new file mode 100644
> index 0000000000000..5c713bf59b06d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/mrvl-gpio.yaml
> @@ -0,0 +1,173 @@
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/mrvl-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell PXA GPIO controller
> +
> +maintainers:
> +  - devicetree@vger.kernel.org

Needs to be a real person that cares about this h/w.

> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - intel,pxa25x-gpio
> +              - intel,pxa26x-gpio
> +              - intel,pxa27x-gpio
> +              - intel,pxa3xx-gpio
> +    then:
> +      properties:
> +        interrupts:
> +          minItems: 3
> +          maxItems: 3
> +        interrupt-names:
> +          items:
> +            - const: gpio0
> +            - const: gpio1
> +            - const: gpio_mux
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - marvell,mmp-gpio
> +              - marvell,mmp2-gpio

I'd make this an else clause.

> +    then:
> +      properties:
> +        interrupts:
> +          maxItems: 1
> +        interrupt-names:
> +          items:
> +            - const: gpio_mux
> +
> +properties:
> +  $nodename:
> +    pattern: '^gpio@[0-9a-f]+$'
> +
> +  compatible:
> +    enum:
> +      - intel,pxa25x-gpio
> +      - intel,pxa26x-gpio
> +      - intel,pxa27x-gpio
> +      - intel,pxa3xx-gpio
> +      - marvell,mmp-gpio
> +      - marvell,mmp2-gpio
> +      - marvell,pxa93x-gpio
> +      - marvell,pxa1928-gpio
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  ranges: true
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 1
> +
> +  gpio-controller: true
> +
> +  '#gpio-cells':
> +    const: 2
> +
> +  gpio-ranges:
> +    maxItems: 1

My pxa1928 dts has this in the child nodes. Sure this is right?

> +
> +  interrupts: true
> +
> +  interrupt-names: true
> +
> +  interrupt-controller: true
> +
> +  '#interrupt-cells':
> +    const: 2
> +
> +patternProperties:
> +  '^gpio@[0-9a-f]*$':
> +    type: object
> +    properties:
> +      reg:
> +        maxItems: 1
> +
> +    required:
> +      - reg
> +
> +    additionalProperties: false
> +
> +required:
> +  - compatible
> +  - '#address-cells'
> +  - '#size-cells'
> +  - reg
> +  - gpio-controller
> +  - '#gpio-cells'
> +  - interrupts
> +  - interrupt-names
> +  - interrupt-controller
> +  - '#interrupt-cells'
> +  - ranges
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/pxa-clock.h>
> +    gpio@40e00000 {
> +        compatible = "intel,pxa3xx-gpio";
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        reg = <0x40e00000 0x10000>;
> +        gpio-controller;
> +        #gpio-cells = <2>;
> +        interrupts = <8>, <9>, <10>;
> +        interrupt-names = "gpio0", "gpio1", "gpio_mux";
> +        clocks = <&clks CLK_GPIO>;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +        ranges;

No child, so there should be no ranges here.

> +    };
> +  - |
> +    #include <dt-bindings/clock/marvell,pxa910.h>
> +    gpio@d4019000 {
> +        compatible = "marvell,mmp-gpio";
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        reg = <0xd4019000 0x1000>;
> +        gpio-controller;
> +        #gpio-cells = <2>;
> +        interrupts = <49>;
> +        interrupt-names = "gpio_mux";
> +        clocks = <&soc_clocks PXA910_CLK_GPIO>;
> +        resets = <&soc_clocks PXA910_CLK_GPIO>;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +        ranges;
> +
> +        gpio@d4019000 {
> +            reg = <0xd4019000 0x4>;
> +        };
> +
> +        gpio@d4019004 {
> +            reg = <0xd4019004 0x4>;
> +        };
> +
> +        gpio@d4019008 {
> +            reg = <0xd4019008 0x4>;
> +        };
> +
> +        gpio@d4019100 {
> +            reg = <0xd4019100 0x4>;
> +        };
> +     };
> +
> +...
> -- 
> 2.25.1
> 

  parent reply index

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-17  9:38 [PATCH 00/28] DT: Improve validation for Marvell SoCs Lubomir Rintel
2020-03-17  9:38 ` [PATCH 01/28] ARM: dts: kirkwood: Fix interrupt controller node name Lubomir Rintel
     [not found]   ` <20200317093922.20785-2-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-17 13:20     ` Andrew Lunn
2020-03-17  9:39 ` [PATCH 08/28] ARM: dts: mmp*: Fix up encoding of the /rtc interrupts property Lubomir Rintel
     [not found]   ` <20200317093922.20785-9-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-17 13:30     ` Andrew Lunn
2020-03-17 13:30     ` Andrew Lunn
2020-03-17  9:39 ` [PATCH 10/28] ARM: dts: mmp3: fix USB & USB PHY node names Lubomir Rintel
2020-03-17 13:32   ` Andrew Lunn
2020-03-17  9:39 ` [PATCH 11/28] ARM: dts: berlin*: Fix up the SDHCI " Lubomir Rintel
2020-03-17 13:34   ` Andrew Lunn
2020-03-17  9:39 ` [PATCH 12/28] spi: dt-bindings: spi-controller: Slaves have no address cells Lubomir Rintel
     [not found]   ` <20200317093922.20785-13-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-19 16:51     ` Rob Herring
2020-03-17  9:39 ` [PATCH 13/28] dt-bindings: serial: move Marvell compatible string to 8250 binding doc Lubomir Rintel
2020-03-17 13:48   ` Andrew Lunn
2020-03-17 19:09     ` Lubomir Rintel
2020-03-19 16:09     ` Rob Herring
     [not found]   ` <20200317093922.20785-14-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-19 16:11     ` Rob Herring
2020-03-20  9:24       ` Lubomir Rintel
2020-03-17  9:39 ` [PATCH 14/28] dt-bindings: arm: l2x0: Tauros 3 is PL310 compatible Lubomir Rintel
2020-03-27 19:03   ` Rob Herring
2020-03-27 19:04   ` Rob Herring
2020-03-17  9:39 ` [PATCH 15/28] dt-bindings: arm: mrvl: Add missing compatible strings Lubomir Rintel
2020-03-17 13:54   ` Andrew Lunn
2020-03-27 19:06   ` Rob Herring
2020-03-17  9:39 ` [PATCH 16/28] dt-bindings: Add "mrvl", a legacy vendor prefix for Marvell Lubomir Rintel
2020-03-27 19:06   ` Rob Herring
     [not found] ` <20200317093922.20785-1-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-17  9:38   ` [PATCH 02/28] ARM: dts: dove: Fix interrupt controller node name Lubomir Rintel
2020-03-17 13:20     ` Andrew Lunn
2020-03-17  9:38   ` [PATCH 03/28] ARM: dts: pxa168: Add missing address/size cells to i2c nodes Lubomir Rintel
     [not found]     ` <20200317093922.20785-4-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-17 13:21       ` Andrew Lunn
2020-03-17  9:38   ` [PATCH 04/28] ARM: dts: pxa168: Fix the gpio interrupt cell number Lubomir Rintel
2020-03-17 13:27     ` Andrew Lunn
2020-03-17  9:38   ` [PATCH 05/28] ARM: dts: pxa3xx: Fix up encoding of the /gpio interrupts property Lubomir Rintel
     [not found]     ` <20200317093922.20785-6-lkundrak-NGH9Lh4a5iE@public.gmane.org>
2020-03-17 13:28       ` Andrew Lunn
2020-03-21  7:36         ` Robert Jarzmik
2020-03-17  9:39   ` [PATCH 06/28] ARM: dts: pxa910: Fix the gpio interrupt cell number Lubomir Rintel
2020-03-17 13:29     ` Andrew Lunn
2020-03-17  9:39   ` [PATCH 07/28] ARM: dts: pxa*: Fix up encoding of the /rtc interrupts property Lubomir Rintel
2020-03-17 13:29     ` Andrew Lunn
2020-03-17  9:39   ` [PATCH 09/28] ARM: dts: mmp3: fix L2 cache controller node name Lubomir Rintel
2020-03-17 13:31     ` Andrew Lunn
2020-03-17  9:39   ` [PATCH 17/28] dt-bindings: mmc: Fix up clk-phase-sd-hs in an example Lubomir Rintel
2020-03-17 10:04     ` Sergei Shtylyov
2020-03-27 19:08     ` Rob Herring
2020-03-17  9:39   ` [PATCH 20/28] dt-bindings: phy: Convert phy-mmp3-usb to json-schema Lubomir Rintel
2020-03-27 19:09     ` Rob Herring
2020-03-17  9:39   ` [PATCH 22/28] dt-bindings: i2c: Convert i2c-pxa " Lubomir Rintel
2020-03-17 13:19   ` [PATCH 00/28] DT: Improve validation for Marvell SoCs Mark Brown
2020-03-17  9:39 ` [PATCH 18/28] dt-bindings: mmc: Fix node name in an example Lubomir Rintel
2020-03-26 14:28   ` Ulf Hansson
2020-03-17  9:39 ` [PATCH 19/28] dt-bindings: mmc: Convert sdhci-pxa to json-schema Lubomir Rintel
2020-03-18 22:14   ` Rob Herring
2020-03-18 22:37   ` Rob Herring
2020-05-17 18:35     ` Lubomir Rintel
2020-03-17  9:39 ` [PATCH 21/28] dt-bindings: gpio: Convert mrvl-gpio " Lubomir Rintel
2020-03-27 10:04   ` Linus Walleij
2020-03-27 19:29     ` Rob Herring
2020-03-27 19:28   ` Rob Herring [this message]
2020-05-17 19:00     ` Lubomir Rintel
2020-03-17  9:39 ` [PATCH 23/28] dt-bindings: interrupt-controller: Convert mrvl,intc " Lubomir Rintel
2020-03-27 19:42   ` Rob Herring
2020-05-17 19:11     ` Lubomir Rintel
2020-03-17  9:39 ` [PATCH 24/28] dt-bindings: media: Convert marvell,mmp2-ccic " Lubomir Rintel
2020-03-27 19:46   ` Rob Herring
2020-05-17 19:21     ` Lubomir Rintel
2020-03-17  9:39 ` [PATCH 25/28] dt-bindings: rtc: Convert sa1100-rtc " Lubomir Rintel
2020-03-27 19:49   ` Rob Herring
2020-05-17 19:25     ` Lubomir Rintel
2020-05-18 15:12       ` Rob Herring
2020-03-17  9:39 ` [PATCH 26/28] dt-bindings: spi: Convert spi-pxa2xx " Lubomir Rintel
2020-03-27 19:52   ` Rob Herring
2020-05-17 19:30     ` Lubomir Rintel
2020-03-17  9:39 ` [PATCH 27/28] dt-bindings: timer: Convert mrvl,mmp-timer " Lubomir Rintel
2020-03-27 19:53   ` Rob Herring
2020-03-17  9:39 ` [PATCH 28/28] dt-bindings: usb: Convert ehci-mv " Lubomir Rintel
2020-03-27 19:55   ` Rob Herring
2020-05-17 19:34     ` Lubomir Rintel
2020-05-18 15:20       ` Rob Herring
2020-03-17 13:46 ` [PATCH 00/28] DT: Improve validation for Marvell SoCs Andrew Lunn
     [not found]   ` <20200317134609.GN24270-g2DYL2Zd6BY@public.gmane.org>
2020-03-17 13:55     ` Alexandre Belloni
     [not found]       ` <20200317135551.GE3448-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2020-03-17 13:59         ` Andrew Lunn

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