linux-kernel - Re: [PATCH v6 06/10] dt-bindings: phy: Document Samsung UFS PHY bindings

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Message-ID: <CAGOxZ51jnbnHjVDQitbvSkrPH2=OdBKQHPnnT8yr+nKARud-WQ@mail.gmail.com>
Date:   Tue, 21 Apr 2020 22:25:43 +0530
From:   Alim Akhtar <alim.akhtar@...il.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>
Cc:     robh <robh@...nel.org>, devicetree@...r.kernel.org,
        linux-scsi@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>,
        Avri Altman <avri.altman@....com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Kiwoong Kim <kwmad.kim@...sung.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Can Guo <cang@...eaurora.org>,
        linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v6 06/10] dt-bindings: phy: Document Samsung UFS PHY bindings

Hi Rob
Request you to comment on this dt-bindings documentation.
Thanks

On Fri, Apr 17, 2020 at 11:43 PM Alim Akhtar <alim.akhtar@...sung.com> wrote:
>
> This patch documents Samsung UFS PHY device tree bindings
>
> Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
> Tested-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
> ---
>  .../bindings/phy/samsung,ufs-phy.yaml         | 74 +++++++++++++++++++
>  1 file changed, 74 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
>
> diff --git a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
> new file mode 100644
> index 000000000000..352d5dda320d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
> @@ -0,0 +1,74 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/phy/samsung,ufs-phy.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung SoC series UFS PHY Device Tree Bindings
> +
> +maintainers:
> +  - Alim Akhtar <alim.akhtar@...sung.com>
> +
> +properties:
> +  "#phy-cells":
> +    const: 0
> +
> +  compatible:
> +    enum:
> +      - samsung,exynos7-ufs-phy
> +
> +  reg:
> +    maxItems: 1
> +    description: PHY base register address
> +
> +  reg-names:
> +    items:
> +      - const: phy-pma
> +
> +  clocks:
> +    items:
> +      - description: PLL reference clock
> +      - description: symbol clock for input symbol ( rx0-ch0 symbol clock)
> +      - description: symbol clock for input symbol ( rx1-ch1 symbol clock)
> +      - description: symbol clock for output symbol ( tx0 symbol clock)
> +
> +  clock-names:
> +    items:
> +      - const: ref_clk
> +      - const: rx1_symbol_clk
> +      - const: rx0_symbol_clk
> +      - const: tx0_symbol_clk
> +
> +  samsung,pmu-syscon:
> +    $ref: '/schemas/types.yaml#/definitions/phandle'
> +    description: phandle for PMU system controller interface, used to
> +                 control pmu registers bits for ufs m-phy
> +
> +required:
> +  - "#phy-cells"
> +  - compatible
> +  - reg
> +  - reg-names
> +  - clocks
> +  - clock-names
> +  - samsung,pmu-syscon
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/exynos7-clk.h>
> +
> +    ufs_phy: ufs-phy@...71800 {
> +        compatible = "samsung,exynos7-ufs-phy";
> +        reg = <0x15571800 0x240>;
> +        reg-names = "phy-pma";
> +        samsung,pmu-syscon = <&pmu_system_controller>;
> +        #phy-cells = <0>;
> +        clocks = <&clock_fsys1 SCLK_COMBO_PHY_EMBEDDED_26M>,
> +                 <&clock_fsys1 PHYCLK_UFS20_RX1_SYMBOL_USER>,
> +                 <&clock_fsys1 PHYCLK_UFS20_RX0_SYMBOL_USER>,
> +                 <&clock_fsys1 PHYCLK_UFS20_TX0_SYMBOL_USER>;
> +        clock-names = "ref_clk", "rx1_symbol_clk",
> +                      "rx0_symbol_clk", "tx0_symbol_clk";
> +
> +    };
> +...
> --
> 2.17.1
>


-- 
Regards,
Alim