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Date: Wed, 18 Mar 2020 16:37:55 -0600
From: Rob Herring <robh+dt@...nel.org>
To: Lubomir Rintel <lkundrak@...sk>
Cc: Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Marc Zyngier <maz@...nel.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Ulf Hansson <ulf.hansson@...aro.org>,
Kishon Vijay Abraham I <kishon@...com>,
Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Mark Brown <broonie@...nel.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Andrew Lunn <andrew@...n.ch>,
Gregory Clement <gregory.clement@...tlin.com>,
Daniel Mack <daniel@...que.org>,
Haojian Zhuang <haojian.zhuang@...il.com>,
Robert Jarzmik <robert.jarzmik@...e.fr>,
devicetree@...r.kernel.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
Linux I2C <linux-i2c@...r.kernel.org>,
Linux Media Mailing List <linux-media@...r.kernel.org>,
linux-mmc <linux-mmc@...r.kernel.org>,
"open list:REAL TIME CLOCK (RTC) SUBSYSTEM"
<linux-rtc@...r.kernel.org>,
"open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
linux-spi <linux-spi@...r.kernel.org>,
Linux USB List <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 19/28] dt-bindings: mmc: Convert sdhci-pxa to json-schema
On Tue, Mar 17, 2020 at 3:40 AM Lubomir Rintel <lkundrak@...sk> wrote:
>
> Convert the sdhci-pxa binding to DT schema format using json-schema.
Ignore what my bot said, I see you addressed that earlier in the series.
> At the same time, fix a couple of issues with the examples discovered by
> the validation tool -- a semicolon instead of a comma and wrong node names.
>
> Signed-off-by: Lubomir Rintel <lkundrak@...sk>
> ---
> .../devicetree/bindings/mmc/sdhci-pxa.txt | 50 ---------
> .../devicetree/bindings/mmc/sdhci-pxa.yaml | 101 ++++++++++++++++++
> 2 files changed, 101 insertions(+), 50 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
> create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml
>
> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt b/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
> deleted file mode 100644
> index 3d1b449d6097d..0000000000000
> --- a/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -* Marvell sdhci-pxa v2/v3 controller
> -
> -This file documents differences between the core properties in mmc.txt
> -and the properties used by the sdhci-pxav2 and sdhci-pxav3 drivers.
> -
> -Required properties:
> -- compatible: Should be "mrvl,pxav2-mmc", "mrvl,pxav3-mmc" or
> - "marvell,armada-380-sdhci".
> -- reg:
> - * for "mrvl,pxav2-mmc" and "mrvl,pxav3-mmc", one register area for
> - the SDHCI registers.
> -
> - * for "marvell,armada-380-sdhci", three register areas. The first
> - one for the SDHCI registers themselves, the second one for the
> - AXI/Mbus bridge registers of the SDHCI unit, the third one for the
> - SDIO3 Configuration register
> -- reg names: should be "sdhci", "mbus", "conf-sdio3". only mandatory
> - for "marvell,armada-380-sdhci"
> -- clocks: Array of clocks required for SDHCI; requires at least one for
> - I/O clock.
> -- clock-names: Array of names corresponding to clocks property; shall be
> - "io" for I/O clock and "core" for optional core clock.
> -
> -Optional properties:
> -- mrvl,clk-delay-cycles: Specify a number of cycles to delay for tuning.
> -
> -Example:
> -
> -sdhci@...80800 {
> - compatible = "mrvl,pxav3-mmc";
> - reg = <0xd4280800 0x800>;
> - bus-width = <8>;
> - interrupts = <27>;
> - clocks = <&chip CLKID_SDIO1XIN>, <&chip CLKID_SDIO1>;
> - clock-names = "io", "core";
> - non-removable;
> - mrvl,clk-delay-cycles = <31>;
> -};
> -
> -sdhci@...00 {
> - compatible = "marvell,armada-380-sdhci";
> - reg-names = "sdhci", "mbus", "conf-sdio3";
> - reg = <0xd8000 0x1000>,
> - <0xdc000 0x100>;
> - <0x18454 0x4>;
> - interrupts = <0 25 0x4>;
> - clocks = <&gateclk 17>;
> - clock-names = "io";
> - mrvl,clk-delay-cycles = <0x1F>;
> -};
> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml b/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml
> new file mode 100644
> index 0000000000000..4ae0926ac294f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml
> @@ -0,0 +1,101 @@
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mmc/sdhci-pxa.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell PXA SDHCI v2/v3 bindings
> +
> +maintainers:
> + - devicetree@...r.kernel.org
> +
> +allOf:
> + - $ref: mmc-controller.yaml#
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: marvell,armada-380-sdhci
> + then:
> + properties:
> + regs:
> + minItems: 3
> + maxItems: 3
Here, you just need minItems.
> + reg-names:
> + items:
> + - const: sdhci
> + - const: mbus
> + - const: conf-sdio3
This should be under the main definition of 'reg-names' and then just
'minItems: 3' here.
> + required:
> + - reg-names
> + else:
> + properties:
> + regs:
> + minItems: 1
> + maxItems: 1
Just 'maxItems' is sufficient.
> + reg-names:
> + minItems: 1
> + maxItems: 1
> +
> +properties:
> + compatible:
> + enum:
> + - mrvl,pxav2-mmc
> + - mrvl,pxav3-mmc
> + - marvell,armada-380-sdhci
> +
> + reg: true
Here you should have:
minItems: 1
maxItems: 3
> +
> + reg-names: true
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + minItems: 1
> + maxItems: 2
> +
> + clock-names:
> + minItems: 1
> + maxItems: 2
> + items:
> + - const: io
> + - const: core
> +
> + mrvl,clk-delay-cycles:
> + description: Specify a number of cycles to delay for tuning.
> + $ref: /schemas/types.yaml#/definitions/uint32
No range of valid values?
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clocks
> + - clock-names
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/berlin2.h>
> + mmc@...80800 {
> + compatible = "mrvl,pxav3-mmc";
> + reg = <0xd4280800 0x800>;
> + bus-width = <8>;
> + interrupts = <27>;
> + clocks = <&chip CLKID_SDIO1XIN>, <&chip CLKID_SDIO1>;
> + clock-names = "io", "core";
> + non-removable;
> + mrvl,clk-delay-cycles = <31>;
> + };
> + - |
> + mmc@...00 {
> + compatible = "marvell,armada-380-sdhci";
> + reg-names = "sdhci", "mbus", "conf-sdio3";
> + reg = <0xd8000 0x1000>,
> + <0xdc000 0x100>,
> + <0x18454 0x4>;
> + interrupts = <0 25 0x4>;
> + clocks = <&gateclk 17>;
> + clock-names = "io";
> + mrvl,clk-delay-cycles = <0x1F>;
> + };
> +
> +...
> --
> 2.25.1
>
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