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Message-ID: <94482135-71c2-f9a9-966c-4cd0b66a130b@canonical.com>
Date: Sun, 27 Feb 2022 11:16:28 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Bjorn Andersson <bjorn.andersson@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 1/2] dt-bindings: pinctrl: qcom: Add sc8280xp TLMM binding
On 25/02/2022 06:32, Bjorn Andersson wrote:
> The Qualcomm SC8280XP platform contains a single block of registers
> for the TLMM block. This provides pinconf and pinmux for 228 GPIOs, 2
> UFS_RESET pins and one SDC interface.
>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
> .../pinctrl/qcom,sc8280xp-pinctrl.yaml | 153 ++++++++++++++++++
> 1 file changed, 153 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sc8280xp-pinctrl.yaml
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sc8280xp-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sc8280xp-pinctrl.yaml
> new file mode 100644
> index 000000000000..4199dfe992e0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sc8280xp-pinctrl.yaml
> @@ -0,0 +1,153 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/qcom,sc8280xp-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. SC8280XP TLMM block
> +
> +maintainers:
> + - Bjorn Andersson <bjorn.andersson@...aro.org>
> +
> +description: |
> + This binding describes the Top Level Mode Multiplexer block found in the
> + SC8280XP platform.
> +
> +allOf:
> + - $ref: "pinctrl.yaml#"
This looks not needed. I see it was added in other QCOM schemas by
https://lore.kernel.org/all/20211202063216.24439-1-zajec5@gmail.com/
(+CC Rafał) but it is already part of qcom,tlmm-common.yaml. I think
there is no need to include it twice.
> + - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
> +
> +properties:
> + compatible:
> + const: qcom,sc8280xp-tlmm
> +
> + reg:
> + maxItems: 1
> +
> + interrupts: true
> + interrupt-controller: true
> + '#interrupt-cells': true
> + gpio-controller: true
> + gpio-reserved-ranges: true
> + '#gpio-cells': true
> + gpio-ranges: true
> + wakeup-parent: true
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
I think you do not use it. The example does not have it so it should
fail validation (dt_binding_check).
> +
> +additionalProperties: false
> +
> +patternProperties:
> + '-state$':
> + oneOf:
> + - $ref: "#/$defs/qcom-sc8280xp-tlmm-state"
> + - patternProperties:
> + ".*":
> + $ref: "#/$defs/qcom-sc8280xp-tlmm-state"
> +
> +'$defs':
> + qcom-sc8280xp-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]|2[0-1][0-9]|22[0-7])$"
> + - enum: [ sdc2_clk, sdc2_cmd, sdc2_data, ufs_reset, ufs1_reset ]
> + minItems: 1
> + maxItems: 16
> +
> + function:
> + description:
> + Specify the alternative function to be configured for the specified
> + pins.
> +
> + enum: [ atest_char, atest_usb, audio_ref, cam_mclk, cci_async, cci_i2c,
> + cci_timer0, cci_timer1, cci_timer2, cci_timer3, cci_timer4,
> + cci_timer5, cci_timer6, cci_timer7, cci_timer8, cci_timer9,
> + cmu_rng, cri_trng, cri_trng0, cri_trng1, dbg_out, ddr_bist,
> + ddr_pxi0, ddr_pxi1, ddr_pxi2, ddr_pxi3, ddr_pxi4, ddr_pxi5,
> + ddr_pxi6, ddr_pxi7, dp2_hot, dp3_hot, edp0_lcd, edp1_lcd,
> + edp2_lcd, edp3_lcd, edp_hot, emac0_dll, emac0_mcg0, emac0_mcg1,
> + emac0_mcg2, emac0_mcg3, emac0_phy, emac0_ptp, emac1_dll0,
> + emac1_dll1, emac1_mcg0, emac1_mcg1, emac1_mcg2, emac1_mcg3,
> + emac1_phy, emac1_ptp, gcc_gp1, gcc_gp2, gcc_gp3, gcc_gp4,
> + gcc_gp5, gpio, hs1_mi2s, hs2_mi2s, hs3_mi2s, ibi_i3c,
> + jitter_bist, lpass_slimbus, mdp0_vsync0, mdp0_vsync1,
> + mdp0_vsync2, mdp0_vsync3, mdp0_vsync4, mdp0_vsync5,
> + mdp0_vsync6, mdp0_vsync7, mdp0_vsync8, mdp1_vsync0,
> + mdp1_vsync1, mdp1_vsync2, mdp1_vsync3, mdp1_vsync4,
> + mdp1_vsync5, mdp1_vsync6, mdp1_vsync7, mdp1_vsync8, mdp_vsync,
> + mi2s0_data0, mi2s0_data1, mi2s0_sck, mi2s0_ws, mi2s1_data0,
> + mi2s1_data1, mi2s1_sck, mi2s1_ws, mi2s2_data0, mi2s2_data1,
> + mi2s2_sck, mi2s2_ws, mi2s_mclk1, mi2s_mclk2, pcie2a_clkreq,
> + pcie2b_clkreq, pcie3a_clkreq, pcie3b_clkreq, pcie4_clkreq,
> + phase_flag, pll_bist, pll_clk, prng_rosc0, prng_rosc1,
> + prng_rosc2, prng_rosc3, qdss_cti, qdss_gpio, qspi, qspi_clk,
> + qspi_cs, qup0, qup1, qup2, qup3, qup4, qup5, qup6, qup7, qup8,
> + qup9, qup10, qup11, qup12, qup13, qup14, qup15, qup16, qup17,
> + qup18, qup19, qup20, qup21, qup22, qup23, rgmii_0, rgmii_1,
> + sd_write, sdc40, sdc42, sdc43, sdc4_clk, sdc4_cmd, tb_trig,
> + tgu, tsense_pwm1, tsense_pwm2, tsense_pwm3, tsense_pwm4,
> + usb0_dp, usb0_phy, usb0_sbrx, usb0_sbtx, usb0_usb4, usb1_dp,
> + usb1_phy, usb1_sbrx, usb1_sbtx, usb1_usb4, usb2phy_ac,
> + vsense_trigger ]
> +
> + bias-disable: true
> + bias-pull-down: true
> + bias-pull-up: true
> + drive-strength: true
> + input-enable: true
> + output-high: true
> + output-low: true
> +
> + required:
> + - pins
> + - function
> +
> + additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + pinctrl@...0000 {
> + compatible = "qcom,sc8280x-tlmm";
> + reg = <0x0f100000 0x300000>;
reg looks different than unit address.
Best regards,
Krzysztof
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