linux-kernel - Re: [PATCH v2 1/2] dt-bindings: pinctrl: document the QCS615 Top Level Mode Multiplexer

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Message-ID: <ba440771-0ddd-4566-a94c-5f0caaf040b9@quicinc.com>
Date: Fri, 20 Sep 2024 16:20:10 +0800
From: Lijuan Gao <quic_lijuang@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Linus Walleij
	<linus.walleij@...aro.org>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <kernel@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-gpio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: pinctrl: document the QCS615 Top
 Level Mode Multiplexer



在 9/20/2024 4:00 PM, Lijuan Gao 写道:
> Document the Top Level Mode Multiplexer on the QCS615 Platform.
> It concisely explains the pin multiplexing and configuration in
> the device tree, and includes simple examples of typical device
> tree snippets, making it easier for designers to configure and
> manage chip pins.
> 
> Signed-off-by: Lijuan Gao <quic_lijuang@...cinc.com>
Missed Rob Herring's Reviewed-by, will add it when posting new versions.
> ---
>   .../bindings/pinctrl/qcom,qcs615-tlmm.yaml         | 124 +++++++++++++++++++++
>   1 file changed, 124 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,qcs615-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,qcs615-tlmm.yaml
> new file mode 100644
> index 000000000000..1ce4b5df584a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,qcs615-tlmm.yaml
> @@ -0,0 +1,124 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/qcom,qcs615-tlmm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. QCS615 TLMM block
> +
> +maintainers:
> +  - Lijuan Gao <quic_lijuang@...cinc.com>
> +
> +description:
> +  Top Level Mode Multiplexer pin controller in Qualcomm QCS615 SoC.
> +
> +allOf:
> +  - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: qcom,qcs615-tlmm
> +
> +  reg:
> +    maxItems: 3
> +
> +  reg-names:
> +    items:
> +      - const: east
> +      - const: west
> +      - const: south
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  gpio-reserved-ranges:
> +    minItems: 1
> +    maxItems: 62
> +
> +  gpio-line-names:
> +    maxItems: 123
> +
> +patternProperties:
> +  "-state$":
> +    oneOf:
> +      - $ref: "#/$defs/qcom-qcs615-tlmm-state"
> +      - type: object
> +        patternProperties:
> +          "-pins$":
> +            $ref: "#/$defs/qcom-qcs615-tlmm-state"
> +        additionalProperties: false
> +
> +$defs:
> +  qcom-qcs615-tlmm-state:
> +    type: object
> +    description:
> +      Pinctrl node's client devices use subnodes for desired pin configuration.
> +      Client device subnodes use below standard properties.
> +    $ref: qcom,tlmm-common.yaml#/$defs/qcom-tlmm-state
> +    unevaluatedProperties: false
> +
> +    properties:
> +      pins:
> +        description:
> +          List of gpio pins affected by the properties specified in this
> +          subnode.
> +        items:
> +          oneOf:
> +            - pattern: "^gpio([0-9]|[1-9][0-9]|1[0-1][0-9]|12[0-2])$"
> +            - enum: [ sdc1_clk, sdc1_cmd, sdc1_data, sdc1_rclk,
> +                      sdc2_clk, sdc2_cmd, sdc2_data, ufs_reset ]
> +        minItems: 1
> +        maxItems: 36
> +
> +      function:
> +        description:
> +          Specify the alternative function to be configured for the specified
> +          pins.
> +        enum: [ gpio, adsp_ext, agera_pll, aoss_cti, atest_char, atest_tsens,
> +                atest_usb, cam_mclk, cci_async, cci_i2c, cci_timer, copy_gp,
> +                copy_phase, cri_trng, dbg_out_clk, ddr_bist, ddr_pxi, dp_hot,
> +                edp_hot, edp_lcd, emac_gcc, emac_phy_intr, forced_usb, gcc_gp,
> +                gp_pdm, gps_tx, hs0_mi2s, hs1_mi2s, jitter_bist, ldo_en,
> +                ldo_update, m_voc, mclk1, mclk2, mdp_vsync, mdp_vsync0_out,
> +                mdp_vsync1_out, mdp_vsync2_out, mdp_vsync3_out, mdp_vsync4_out,
> +                mdp_vsync5_out, mi2s_1, mss_lte, nav_pps_in, nav_pps_out,
> +                pa_indicator_or, pcie_clk_req, pcie_ep_rst, phase_flag, pll_bist,
> +                pll_bypassnl, pll_reset_n, prng_rosc, qdss_cti, qdss_gpio,
> +                qlink_enable, qlink_request, qspi, qup0, qup1, rgmii,
> +                sd_write_protect, sp_cmu, ter_mi2s, tgu_ch, uim1, uim2, usb0_hs,
> +                usb1_hs, usb_phy_ps, vfr_1, vsense_trigger_mirnat, wlan, wsa_clk,
> +                wsa_data ]
> +
> +    required:
> +      - pins
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    tlmm: pinctrl@...0000 {
> +        compatible = "qcom,qcs615-tlmm";
> +        reg = <0x03100000 0x300000>,
> +              <0x03500000 0x300000>,
> +              <0x03c00000 0x300000>;
> +        reg-names = "east", "west", "south";
> +        interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
> +        gpio-ranges = <&tlmm 0 0 123>;
> +        gpio-controller;
> +        #gpio-cells = <2>;
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +
> +        qup3-uart2-state {
> +            pins ="gpio16", "gpio17";
> +            function = "qup0";
> +        };
> +    };
> +...
> 

-- 
Thx and BRs
Lijuan Gao