linux-kernel - Re: [PATCH 1/3] dt-bindings: pinctrl: document the SM8650 Top Level Mode Multiplexer

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Date:   Wed, 25 Oct 2023 10:10:12 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: pinctrl: document the SM8650 Top Level
 Mode Multiplexer

On 25/10/2023 09:33, Neil Armstrong wrote:

Thank you for your patch. There is something to discuss/improve.

> +$defs:
> +  qcom-sm8650-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
> +
> +    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[0-9][0-9]|20[0-9])$"
> +            - enum: [ ufs_reset, sdc2_clk, sdc2_cmd, sdc2_data ]
> +        minItems: 1
> +        maxItems: 36
> +
> +      function:
> +        description:
> +          Specify the alternative function to be configured for the specified
> +          pins.
> +        enum: [ gpio, aoss_cti, atest_char, atest_usb, audio_ext_mclk0,
> +                audio_ext_mclk1, audio_ref_clk, cam_aon_mclk2, cam_aon_mclk4,
> +                cam_mclk, cci_async_in, cci_i2c_scl, cci_i2c_sda, cci_timer,
> +                cmu_rng, coex_uart1_rx, coex_uart1_tx, coex_uart2_rx,
> +                coex_uart2_tx, cri_trng, dbg_out_clk, ddr_bist_complete,
> +                ddr_bist_fail, ddr_bist_start, ddr_bist_stop, ddr_pxi0,
> +                ddr_pxi1, ddr_pxi2, ddr_pxi3, do_not, dp_hot, gcc_gp1,
> +                gcc_gp2, gcc_gp3, gnss_adc0, gnss_adc1, i2chub0_se0,
> +                i2chub0_se1, i2chub0_se2, i2chub0_se3, i2chub0_se4,
> +                i2chub0_se5, i2chub0_se6, i2chub0_se7, i2chub0_se8,
> +                i2chub0_se9, i2s0_data0, i2s0_data1, i2s0_sck, i2s0_ws,
> +                i2s1_data0, i2s1_data1, i2s1_sck, i2s1_ws, ibi_i3c,
> +                jitter_bist, mdp_vsync, mdp_vsync0_out, mdp_vsync1_out,
> +                mdp_vsync2_out, mdp_vsync3_out, mdp_vsync_e, nav_gpio0,
> +                nav_gpio1, nav_gpio2, nav_gpio3, pcie0_clk_req_n,
> +                pcie1_clk_req_n, phase_flag, pll_bist_sync, pll_clk_aux,
> +                prng_rosc0, prng_rosc1, prng_rosc2, prng_rosc3, qdss_cti,
> +                qdss_gpio, qlink_big_enable, qlink_big_request,
> +                qlink_little_enable, qlink_little_request, qlink_wmss,
> +                qspi0, qspi1, qspi2, qspi3, qspi_clk, qspi_cs, qup1_se0,
> +                qup1_se1, qup1_se2, qup1_se3, qup1_se4, qup1_se5, qup1_se6,
> +                qup1_se7, qup2_se0, qup2_se1, qup2_se2, qup2_se3, qup2_se4,
> +                qup2_se5, qup2_se6, qup2_se7, sd_write_protect, sdc40, sdc41,
> +                sdc42, sdc43, sdc4_clk, sdc4_cmd, tb_trig_sdc2, tb_trig_sdc4,
> +                tgu_ch0_trigout, tgu_ch1_trigout, tgu_ch2_trigout,
> +                tgu_ch3_trigout, tmess_prng0, tmess_prng1, tmess_prng2,
> +                tmess_prng3, tsense_pwm1, tsense_pwm2, tsense_pwm3, uim0_clk,
> +                uim0_data, uim0_present, uim0_reset, uim1_clk, uim1_data,
> +                uim1_present, uim1_reset, usb1_hs, usb_phy, vfr_0, vfr_1,
> +                vsense_trigger_mirnat ]
> +
> +      bias-disable: true
> +      bias-pull-down: true
> +      bias-pull-up: true
> +      drive-strength: true
> +      input-enable: true
> +      output-disable: true
> +      output-high: true
> +      output-low: true
> +
> +    required:
> +      - pins
> +
> +    additionalProperties: false

We changed the syntax here:
1. Use unevaluatedProperties: false (and put it after $ref:
qcom,tlmm-common.yaml#/$defs/qcom-tlmm-state)
2. Drop all these ": true" properties.

Take a look at sm8550 for an example.

Best regards,
Krzysztof