Thread (8 messages) 8 messages, 3 authors, 2022-10-17

[PATCH v2 4/4] dt-bindings: pinctrl: qcom,msm8998: convert to dtschema

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From: Krzysztof Kozlowski <hidden>
Date: 2022-10-12 15:16:44
Also in: linux-arm-msm, linux-gpio, lkml
Subsystem: arm/qualcomm mailing list, open firmware and flattened device tree bindings, pin control subsystem, pin controller - qualcomm, qualcomm pinctrl drivers, the rest · Maintainers: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Walleij, Bjorn Andersson, Bartosz Golaszewski, Linus Torvalds

Convert Qualcomm MSM8998 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 <redacted>

---

Changes since v1:
1. Correct bindings description.
---
 .../bindings/pinctrl/qcom,msm8998-pinctrl.txt | 202 ------------------
 .../pinctrl/qcom,msm8998-pinctrl.yaml         | 176 +++++++++++++++
 2 files changed, 176 insertions(+), 202 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.txt
 create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.yaml
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.txt
deleted file mode 100644
index c4de930f2406..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.txt
+++ /dev/null
@@ -1,202 +0,0 @@
-Qualcomm MSM8998 TLMM block
-
-This binding describes the Top Level Mode Multiplexer block found in the
-MSM8998 platform.
-
-- compatible:
-	Usage: required
-	Value type: <string>
-	Definition: must be "qcom,msm8998-pinctrl"
-
-- reg:
-	Usage: required
-	Value type: <prop-encoded-array>
-	Definition: the base address and size of the TLMM register space.
-
-- 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
-	Definition:  see ../gpio/gpio.txt
-
-- gpio-reserved-ranges:
-	Usage: optional
-	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
-
-		      sdc2_clk, sdc2_cmd, sdc2_data
-		        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:
-
-		    gpio, adsp_ext, agera_pll, atest_char, atest_gpsadc0,
-		    atest_gpsadc1, atest_tsens, atest_tsens2, atest_usb1,
-		    atest_usb10, atest_usb11, atest_usb12, atest_usb13,
-		    audio_ref, bimc_dte0, bimc_dte1, blsp10_spi, blsp10_spi_a,
-		    blsp10_spi_b, blsp11_i2c, blsp1_spi, blsp1_spi_a,
-		    blsp1_spi_b, blsp2_spi, blsp9_spi, blsp_i2c1, blsp_i2c2,
-		    blsp_i2c3, blsp_i2c4, blsp_i2c5, blsp_i2c6, blsp_i2c7,
-		    blsp_i2c8, blsp_i2c9, blsp_i2c10, blsp_i2c11, blsp_i2c12,
-		    blsp_spi1, blsp_spi2, blsp_spi3, blsp_spi4, blsp_spi5,
-		    blsp_spi6, blsp_spi7, blsp_spi8, blsp_spi9, blsp_spi10,
-		    blsp_spi11, blsp_spi12, blsp_uart1_a, blsp_uart1_b,
-		    blsp_uart2_a, blsp_uart2_b, blsp_uart3_a, blsp_uart3_b,
-		    blsp_uart7_a, blsp_uart7_b, blsp_uart8, blsp_uart8_a,
-		    blsp_uart8_b, blsp_uart9_a, blsp_uart9_b, blsp_uim1_a,
-		    blsp_uim1_b, blsp_uim2_a, blsp_uim2_b, blsp_uim3_a,
-		    blsp_uim3_b, blsp_uim7_a, blsp_uim7_b, blsp_uim8_a,
-		    blsp_uim8_b, blsp_uim9_a, blsp_uim9_b, bt_reset,
-		    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, edp_hot, edp_lcd,
-		    gcc_gp1_a, gcc_gp1_b, gcc_gp2_a, gcc_gp2_b, gcc_gp3_a,
-		    gcc_gp3_b, hdmi_cec, hdmi_ddc, hdmi_hot, hdmi_rcv,
-		    isense_dbg, jitter_bist, ldo_en, ldo_update, lpass_slimbus,
-		    m_voc, mdp_vsync, mdp_vsync0, mdp_vsync1, mdp_vsync2,
-		    mdp_vsync3, mdp_vsync_a, mdp_vsync_b, modem_tsync, mss_lte,
-		    nav_dr, nav_pps, pa_indicator, pci_e0, phase_flag,
-		    pll_bypassnl, pll_reset, pri_mi2s, pri_mi2s_ws, prng_rosc,
-		    pwr_crypto, pwr_modem, pwr_nav, qdss_cti0_a, qdss_cti0_b,
-		    qdss_cti1_a, qdss_cti1_b, qdss, qlink_enable,
-		    qlink_request, qua_mi2s, sd_card, sd_write, sdc40, sdc41,
-		    sdc42, sdc43, sdc4_clk, sdc4_cmd, sec_mi2s, sp_cmu,
-		    spkr_i2s, ssbi1, ssc_irq, ter_mi2s, tgu_ch0, tgu_ch1,
-		    tsense_pwm1, tsense_pwm2, tsif0, tsif1,
-		    uim1_clk, uim1_data, uim1_present,
-		    uim1_reset, uim2_clk, uim2_data, uim2_present, uim2_reset,
-		    uim_batt, usb_phy, vfr_1, vsense_clkout, vsense_data0,
-		    vsense_data1, vsense_mode, wlan1_adc0, wlan1_adc1,
-		    wlan2_adc0, wlan2_adc1,
-
-- bias-disable:
-	Usage: optional
-	Value type: <none>
-	Definition: The specified pins should be configured as no pull.
-
-- bias-pull-down:
-	Usage: optional
-	Value type: <none>
-	Definition: The specified pins should be configured as pull down.
-
-- bias-pull-up:
-	Usage: optional
-	Value type: <none>
-	Definition: The specified pins should be configured 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@03400000 {
-		compatible = "qcom,msm8998-pinctrl";
-		reg = <0x03400000 0xc00000>;
-		interrupts = <0 208 0>;
-		gpio-controller;
-		#gpio-cells = <2>;
-		gpio-ranges = <&tlmm 0 0 175>;
-		gpio-reserved-ranges = <0 4>, <81 4>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
-
-		uart_console_active: uart_console_active {
-			mux {
-				pins = "gpio4", "gpio5";
-				function = "blsp_uart8_a";
-			};
-
-			config {
-				pins = "gpio4", "gpio5";
-				drive-strength = <2>;
-				bias-disable;
-			};
-		};
-	};
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.yaml
new file mode 100644
index 000000000000..89c95b42b39b
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,msm8998-pinctrl.yaml
@@ -0,0 +1,176 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,msm8998-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM8998 TLMM pin controller
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+description:
+  Top Level Mode Multiplexer pin controller in Qualcomm MSM8998 SoC.
+
+properties:
+  compatible:
+    const: qcom,msm8998-pinctrl
+
+  reg:
+    maxItems: 1
+
+  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: 75
+
+  gpio-line-names:
+    maxItems: 150
+
+patternProperties:
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-msm8998-tlmm-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-msm8998-tlmm-state"
+        additionalProperties: false
+
+$defs:
+  qcom-msm8998-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[0-4][0-9])$"
+            - 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: [ gpio, adsp_ext, agera_pll, atest_char, atest_gpsadc0,
+                atest_gpsadc1, atest_tsens, atest_tsens2, atest_usb1,
+                atest_usb10, atest_usb11, atest_usb12, atest_usb13, audio_ref,
+                bimc_dte0, bimc_dte1, blsp10_spi, blsp10_spi_a, blsp10_spi_b,
+                blsp11_i2c, blsp1_spi, blsp1_spi_a, blsp1_spi_b, blsp2_spi,
+                blsp9_spi, blsp_i2c1, blsp_i2c2, blsp_i2c3, blsp_i2c4,
+                blsp_i2c5, blsp_i2c6, blsp_i2c7, blsp_i2c8, blsp_i2c9,
+                blsp_i2c10, blsp_i2c11, blsp_i2c12, blsp_spi1, blsp_spi2,
+                blsp_spi3, blsp_spi4, blsp_spi5, blsp_spi6, blsp_spi7,
+                blsp_spi8, blsp_spi9, blsp_spi10, blsp_spi11, blsp_spi12,
+                blsp_uart1_a, blsp_uart1_b, blsp_uart2_a, blsp_uart2_b,
+                blsp_uart3_a, blsp_uart3_b, blsp_uart7_a, blsp_uart7_b,
+                blsp_uart8, blsp_uart8_a, blsp_uart8_b, blsp_uart9_a,
+                blsp_uart9_b, blsp_uim1_a, blsp_uim1_b, blsp_uim2_a,
+                blsp_uim2_b, blsp_uim3_a, blsp_uim3_b, blsp_uim7_a,
+                blsp_uim7_b, blsp_uim8_a, blsp_uim8_b, blsp_uim9_a,
+                blsp_uim9_b, bt_reset, 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,
+                edp_hot, edp_lcd, gcc_gp1_a, gcc_gp1_b, gcc_gp2_a, gcc_gp2_b,
+                gcc_gp3_a, gcc_gp3_b, hdmi_cec, hdmi_ddc, hdmi_hot, hdmi_rcv,
+                isense_dbg, jitter_bist, ldo_en, ldo_update, lpass_slimbus,
+                m_voc, mdp_vsync, mdp_vsync0, mdp_vsync1, mdp_vsync2,
+                mdp_vsync3, mdp_vsync_a, mdp_vsync_b, modem_tsync, mss_lte,
+                nav_dr, nav_pps, pa_indicator, pci_e0, phase_flag,
+                pll_bypassnl, pll_reset, pri_mi2s, pri_mi2s_ws, prng_rosc,
+                pwr_crypto, pwr_modem, pwr_nav, qdss_cti0_a, qdss_cti0_b,
+                qdss_cti1_a, qdss_cti1_b, qdss, qlink_enable, qlink_request,
+                qua_mi2s, sd_card, sd_write, sdc40, sdc41, sdc42, sdc43,
+                sdc4_clk, sdc4_cmd, sec_mi2s, sp_cmu, spkr_i2s, ssbi1, ssc_irq,
+                ter_mi2s, tgu_ch0, tgu_ch1, tsense_pwm1, tsense_pwm2, tsif0,
+                tsif1, uim1_clk, uim1_data, uim1_present, uim1_reset, uim2_clk,
+                uim2_data, uim2_present, uim2_reset, uim_batt, usb_phy, vfr_1,
+                vsense_clkout, vsense_data0, vsense_data1, vsense_mode,
+                wlan1_adc0, wlan1_adc1, wlan2_adc0, wlan2_adc1 ]
+
+      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
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    tlmm: pinctrl@3400000 {
+        compatible = "qcom,msm8998-pinctrl";
+        reg = <0x03400000 0xc00000>;
+        interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+        gpio-ranges = <&tlmm 0 0 150>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        gpio-reserved-ranges = <0 4>, <81 4>;
+
+        sdc2-off-state {
+            clk-pins {
+                pins = "sdc2_clk";
+                drive-strength = <2>;
+                bias-disable;
+            };
+
+            cmd-pins {
+                pins = "sdc2_cmd";
+                drive-strength = <2>;
+                bias-pull-up;
+            };
+
+            data-pins {
+                pins = "sdc2_data";
+                drive-strength = <2>;
+                bias-pull-up;
+            };
+        };
+
+        sdc2-cd-state {
+            pins = "gpio95";
+            function = "gpio";
+            bias-pull-up;
+            drive-strength = <2>;
+        };
+    };
-- 
2.34.1
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