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Date: Thu, 6 Oct 2022 22:04:13 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Andy Gross <agross@...nel.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: pinctrl: qcom,sm8150: convert to
dtschema
On Thu, Oct 06, 2022 at 04:45:18PM +0200, Krzysztof Kozlowski wrote:
> Convert Qualcomm SM8150 pin controller bindings to DT schema. Keep the
> parsing of pin configuration subnodes consistent with other Qualcomm
> schemas (children named with '-state' suffix, their children with
> '-pins').
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
There are a few differences between the old and new binding, nice to see
those mistakes being corrected.
Reviewed-by: Bjorn Andersson <andersson@...nel.org>
Regards,
Bjorn
> ---
> .../bindings/pinctrl/qcom,sm8150-pinctrl.txt | 190 ------------------
> .../bindings/pinctrl/qcom,sm8150-pinctrl.yaml | 178 ++++++++++++++++
> 2 files changed, 178 insertions(+), 190 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt
> create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.yaml
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt
> deleted file mode 100644
> index fa37733e5102..000000000000
> --- a/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.txt
> +++ /dev/null
> @@ -1,190 +0,0 @@
> -Qualcomm SM8150 TLMM block
> -
> -This binding describes the Top Level Mode Multiplexer block found in the
> -QCS404 platform.
> -
> -- compatible:
> - Usage: required
> - Value type: <string>
> - Definition: must be "qcom,sm8150-pinctrl"
> -
> -- reg:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: the base address and size of the north, south, west
> - and east TLMM tiles.
> -
> -- reg-names:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Defintiion: names for the cells of reg, must contain "north", "south"
> - "west" and "east".
> -
> -- interrupts:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: should specify the TLMM summary IRQ.
> -
> -- interrupt-controller:
> - Usage: required
> - Value type: <none>
> - Definition: identifies this node as an interrupt controller
> -
> -- #interrupt-cells:
> - Usage: required
> - Value type: <u32>
> - Definition: must be 2. Specifying the pin number and flags, as defined
> - in <dt-bindings/interrupt-controller/irq.h>
> -
> -- gpio-controller:
> - Usage: required
> - Value type: <none>
> - Definition: identifies this node as a gpio controller
> -
> -- #gpio-cells:
> - Usage: required
> - Value type: <u32>
> - Definition: must be 2. Specifying the pin number and flags, as defined
> - in <dt-bindings/gpio/gpio.h>
> -
> -- gpio-ranges:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: see ../gpio/gpio.txt
> -
> -- gpio-reserved-ranges:
> - Usage: optional
> - Value type: <prop-encoded-array>
> - Definition: see ../gpio/gpio.txt
> -
> -Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
> -a general description of GPIO and interrupt bindings.
> -
> -Please refer to pinctrl-bindings.txt in this directory for details of the
> -common pinctrl bindings used by client devices, including the meaning of the
> -phrase "pin configuration node".
> -
> -The pin configuration nodes act as a container for an arbitrary number of
> -subnodes. Each of these subnodes represents some desired configuration for a
> -pin, a group, or a list of pins or groups. This configuration can include the
> -mux function to select on those pin(s)/group(s), and various pin configuration
> -parameters, such as pull-up, drive strength, etc.
> -
> -
> -PIN CONFIGURATION NODES:
> -
> -The name of each subnode is not important; all subnodes should be enumerated
> -and processed purely based on their content.
> -
> -Each subnode only affects those parameters that are explicitly listed. In
> -other words, a subnode that lists a mux function but no pin configuration
> -parameters implies no information about any pin configuration parameters.
> -Similarly, a pin subnode that describes a pullup parameter implies no
> -information about e.g. the mux function.
> -
> -
> -The following generic properties as defined in pinctrl-bindings.txt are valid
> -to specify in a pin configuration subnode:
> -
> -- pins:
> - Usage: required
> - Value type: <string-array>
> - Definition: List of gpio pins affected by the properties specified in
> - this subnode.
> -
> - Valid pins are:
> - gpio0-gpio149
> - Supports mux, bias and drive-strength
> -
> - sdc1_clk, sdc1_cmd, sdc1_data sdc2_clk, sdc2_cmd,
> - sdc2_data sdc1_rclk
> - Supports bias and drive-strength
> -
> - ufs_reset
> - Supports bias and drive-strength
> -
> -- function:
> - Usage: required
> - Value type: <string>
> - Definition: Specify the alternative function to be configured for the
> - specified pins. Functions are only valid for gpio pins.
> - Valid values are:
> -
> - adsp_ext, agera_pll, aoss_cti, ddr_pxi2, atest_char,
> - atest_char0, atest_char1, atest_char2, atest_char3,
> - audio_ref, atest_usb1, atest_usb2, atest_usb10,
> - atest_usb11, atest_usb12, atest_usb13, atest_usb20,
> - atest_usb21, atest_usb22, atest_usb2, atest_usb23,
> - btfm_slimbus, cam_mclk, cci_async, cci_i2c, cci_timer0,
> - cci_timer1, cci_timer2, cci_timer3, cci_timer4,
> - cri_trng, cri_trng0, cri_trng1, dbg_out, ddr_bist,
> - ddr_pxi0, ddr_pxi1, ddr_pxi3, edp_hot, edp_lcd,
> - emac_phy, emac_pps, gcc_gp1, gcc_gp2, gcc_gp3, gpio,
> - hs1_mi2s, hs2_mi2s, hs3_mi2s, jitter_bist,
> - lpass_slimbus, mdp_vsync, mdp_vsync0, mdp_vsync1,
> - mdp_vsync2, mdp_vsync3, mss_lte, m_voc, nav_pps,
> - pa_indicator, pci_e0, phase_flag, pll_bypassnl,
> - pll_bist, pci_e1, pll_reset, pri_mi2s, pri_mi2s_ws,
> - prng_rosc, qdss, qdss_cti, qlink_request, qlink_enable,
> - qspi0, qspi1, qspi2, qspi3, qspi_clk, qspi_cs, qua_mi2s,
> - qup0, qup1, qup2, qup3, qup4, qup5, qup6, qup7, qup8,
> - qup9, qup10, qup11, qup12, qup13, qup14, qup15, qup16,
> - qup17, qup18, qup19, qup_l4, qup_l5, qup_l6, rgmii,
> - sdc4, sd_write, sec_mi2s, spkr_i2s, sp_cmu, ter_mi2s,
> - tgu_ch0, tgu_ch1, tgu_ch2, tgu_ch3, tsense_pwm1,
> - tsense_pwm2, tsif1, tsif2, uim1, uim2, uim_batt,
> - usb2phy_ac, usb_phy, vfr_1, vsense_trigger, wlan1_adc0,
> - wlan1_adc1, wlan2_adc0, wlan2_adc1, wmss_reset
> -
> -- bias-disable:
> - Usage: optional
> - Value type: <none>
> - Definition: The specified pins should be configued as no pull.
> -
> -- bias-pull-down:
> - Usage: optional
> - Value type: <none>
> - Definition: The specified pins should be configued as pull down.
> -
> -- bias-pull-up:
> - Usage: optional
> - Value type: <none>
> - Definition: The specified pins should be configued as pull up.
> -
> -- output-high:
> - Usage: optional
> - Value type: <none>
> - Definition: The specified pins are configured in output mode, driven
> - high.
> - Not valid for sdc pins.
> -
> -- output-low:
> - Usage: optional
> - Value type: <none>
> - Definition: The specified pins are configured in output mode, driven
> - low.
> - Not valid for sdc pins.
> -
> -- drive-strength:
> - Usage: optional
> - Value type: <u32>
> - Definition: Selects the drive strength for the specified pins, in mA.
> - Valid values are: 2, 4, 6, 8, 10, 12, 14 and 16
> -
> -Example:
> -
> - tlmm: pinctrl@...0000 {
> - compatible = "qcom,sm8150-pinctrl";
> - reg = <0x03100000 0x300000>,
> - <0x03500000 0x300000>,
> - <0x03900000 0x300000>,
> - <0x03D00000 0x300000>;
> - reg-names = "west", "east", "north", "south";
> - interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
> - gpio-controller;
> - #gpio-cells = <2>;
> - gpio-ranges = <&tlmm 0 0 175>;
> - gpio-reserved-ranges = <0 4>, <126 4>;
> - interrupt-controller;
> - #interrupt-cells = <2>;
> - };
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.yaml
> new file mode 100644
> index 000000000000..41066d88dc57
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8150-pinctrl.yaml
> @@ -0,0 +1,178 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/qcom,sm8150-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm SM8150 TLMM pin controller
> +
> +maintainers:
> + - Bjorn Andersson <andersson@...nel.org>
> + - Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> +
> +description:
> + Top Level Mode Multiplexer pin controller in Qualcomm SM8150 SoC.
> +
> +properties:
> + compatible:
> + const: qcom,sm8150-pinctrl
> +
> + reg:
> + maxItems: 4
> +
> + reg-names:
> + items:
> + - const: west
> + - const: east
> + - const: north
> + - const: south
> +
> + interrupts: true
> + interrupt-controller: true
> + "#interrupt-cells": true
> + gpio-controller: true
> + "#gpio-cells": true
> + gpio-ranges: true
> + wakeup-parent: true
> +
> + gpio-reserved-ranges:
> + minItems: 1
> + maxItems: 88
> +
> + gpio-line-names:
> + maxItems: 175
> +
> +patternProperties:
> + "-state$":
> + oneOf:
> + - $ref: "#/$defs/qcom-sm8150-tlmm-state"
> + - patternProperties:
> + "-pins$":
> + $ref: "#/$defs/qcom-sm8150-tlmm-state"
> + additionalProperties: false
> +
> +$defs:
> + qcom-sm8150-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[0-6][0-9]|17[0-4])$"
> + - enum: [ 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: [ adsp_ext, agera_pll, aoss_cti, ddr_pxi2, atest_char,
> + atest_char0, atest_char1, atest_char2, atest_char3, audio_ref,
> + atest_usb1, atest_usb2, atest_usb10, atest_usb11, atest_usb12,
> + atest_usb13, atest_usb20, atest_usb21, atest_usb22, atest_usb2,
> + atest_usb23, btfm_slimbus, cam_mclk, cci_async, cci_i2c,
> + cci_timer0, cci_timer1, cci_timer2, cci_timer3, cci_timer4,
> + cri_trng, cri_trng0, cri_trng1, dbg_out, ddr_bist, ddr_pxi0,
> + ddr_pxi1, ddr_pxi3, edp_hot, edp_lcd, emac_phy, emac_pps,
> + gcc_gp1, gcc_gp2, gcc_gp3, gpio, hs1_mi2s, hs2_mi2s, hs3_mi2s,
> + jitter_bist, lpass_slimbus, mdp_vsync, mdp_vsync0, mdp_vsync1,
> + mdp_vsync2, mdp_vsync3, mss_lte, m_voc, nav_pps, pa_indicator,
> + pci_e0, phase_flag, pll_bypassnl, pll_bist, pci_e1, pll_reset,
> + pri_mi2s, pri_mi2s_ws, prng_rosc, qdss, qdss_cti,
> + qlink_request, qlink_enable, qspi0, qspi1, qspi2, qspi3,
> + qspi_clk, qspi_cs, qua_mi2s, qup0, qup1, qup2, qup3, qup4,
> + qup5, qup6, qup7, qup8, qup9, qup10, qup11, qup12, qup13,
> + qup14, qup15, qup16, qup17, qup18, qup19, qup_l4, qup_l5,
> + qup_l6, rgmii, sdc4, sd_write, sec_mi2s, spkr_i2s, sp_cmu,
> + ter_mi2s, tgu_ch0, tgu_ch1, tgu_ch2, tgu_ch3, tsense_pwm1,
> + tsense_pwm2, tsif1, tsif2, uim1, uim2, uim_batt, usb2phy_ac,
> + usb_phy, vfr_1, vsense_trigger, wlan1_adc0, wlan1_adc1,
> + wlan2_adc0, wlan2_adc1, wmss_reset ]
> +
> + drive-strength:
> + enum: [2, 4, 6, 8, 10, 12, 14, 16]
> + default: 2
> + description:
> + Selects the drive strength for the specified pins, in mA.
> +
> + bias-pull-down: true
> + bias-pull-up: true
> + bias-disable: true
> + input-enable: true
> + output-high: true
> + output-low: true
> +
> + required:
> + - pins
> +
> + additionalProperties: false
> +
> +allOf:
> + - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + tlmm: pinctrl@...0000 {
> + compatible = "qcom,sm8150-pinctrl";
> + reg = <0x03100000 0x300000>,
> + <0x03500000 0x300000>,
> + <0x03900000 0x300000>,
> + <0x03d00000 0x300000>;
> + reg-names = "west", "east", "north", "south";
> + interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
> + gpio-ranges = <&tlmm 0 0 176>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + wakeup-parent = <&pdc>;
> +
> + qup-spi0-default-state {
> + pins = "gpio0", "gpio1", "gpio2", "gpio3";
> + function = "qup0";
> + drive-strength = <6>;
> + bias-disable;
> + };
> +
> + pcie1-default-state {
> + perst-pins {
> + pins = "gpio102";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-pull-down;
> + };
> +
> + clkreq-pins {
> + pins = "gpio103";
> + function = "pci_e1";
> + drive-strength = <2>;
> + bias-pull-up;
> + };
> +
> + wake-pins {
> + pins = "gpio104";
> + function = "gpio";
> + drive-strength = <2>;
> + bias-pull-up;
> + };
> + };
> + };
> --
> 2.34.1
>
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