dt-bindings: pinctrl: qcom,msm8660: convert to dtschema

Convert Qualcomm MSM8660 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').

Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221107185931.22075-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

2 files changed, 125 insertions, 96 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,msm8660-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,msm8660-pinctrl.txt
deleted file mode 100644
index f095209848c8..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/qcom,msm8660-pinctrl.txt
+++ /dev/null
@@ -1,96 +0,0 @@
-Qualcomm MSM8660 TLMM block
-
-Required properties:
-- compatible: "qcom,msm8660-pinctrl"
-- reg: Should be the base address and length of the TLMM block.
-- interrupts: Should be the parent IRQ of the TLMM block.
-- interrupt-controller: Marks the device node as an interrupt controller.
-- #interrupt-cells: Should be two.
-- gpio-controller: Marks the device node as a GPIO controller.
-- #gpio-cells : Should be two.
-                The first cell is the gpio pin number and the
-                second cell is used for optional parameters.
-- gpio-ranges: see ../gpio/gpio.txt
-
-Optional properties:
-
-- gpio-reserved-ranges: 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".
-
-Qualcomm's 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.
-
-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, function, bias-disable, bias-pull-down, bias-pull-up, drive-strength,
- output-low, output-high.
-
-Non-empty subnodes must specify the 'pins' property.
-
-Valid values for pins are:
-  gpio0-gpio172, sdc3_clk, sdc3_cmd, sdc3_data sdc4_clk, sdc4_cmd, sdc4_data
-
-Valid values for function are:
-  gpio, cam_mclk, dsub, ext_gps, gp_clk_0a, gp_clk_0b, gp_clk_1a, gp_clk_1b,
-  gp_clk_2a, gp_clk_2b, gp_mn, gsbi1, gsbi1_spi_cs1_n, gsbi1_spi_cs2a_n,
-  gsbi1_spi_cs2b_n, gsbi1_spi_cs3_n, gsbi2, gsbi2_spi_cs1_n, gsbi2_spi_cs2_n,
-  gsbi2_spi_cs3_n, gsbi3, gsbi3_spi_cs1_n, gsbi3_spi_cs2_n, gsbi3_spi_cs3_n,
-  gsbi4, gsbi5, gsbi6, gsbi7, gsbi8, gsbi9, gsbi10, gsbi11, gsbi12, hdmi, i2s,
-  lcdc, mdp_vsync, mi2s, pcm, ps_hold, sdc1, sdc2, sdc5, tsif1, tsif2, usb_fs1,
-  usb_fs1_oe_n, usb_fs2, usb_fs2_oe_n, vfe, vsens_alarm, ebi2, ebi2cs
-
-Example:
-
-	msmgpio: pinctrl@800000 {
-		compatible = "qcom,msm8660-pinctrl";
-		reg = <0x800000 0x4000>;
-
-		gpio-controller;
-		#gpio-cells = <2>;
-		gpio-ranges = <&msmgpio 0 0 173>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
-		interrupts = <0 16 0x4>;
-
-		pinctrl-names = "default";
-		pinctrl-0 = <&gsbi12_uart>;
-
-		gsbi12_uart: gsbi12-uart {
-			mux {
-				pins = "gpio117", "gpio118";
-				function = "gsbi12";
-			};
-
-			tx {
-				pins = "gpio118";
-				drive-strength = <8>;
-				bias-disable;
-			};
-
-			rx {
-				pins = "gpio117";
-				drive-strength = <2>;
-				bias-pull-up;
-			};
-		};
-	};
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,msm8660-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,msm8660-pinctrl.yaml
new file mode 100644
index 000000000000..ad0cad4694c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,msm8660-pinctrl.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,msm8660-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM8660 TLMM pin controller
+
+maintainers:
+  - Bjorn Andersson <andersson@kernel.org>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+description:
+  Top Level Mode Multiplexer pin controller in Qualcomm MSM8660 SoC.
+
+properties:
+  compatible:
+    const: qcom,msm8660-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: 86
+
+  gpio-line-names:
+    maxItems: 173
+
+patternProperties:
+  "-state$":
+    oneOf:
+      - $ref: "#/$defs/qcom-msm8660-tlmm-state"
+      - patternProperties:
+          "-pins$":
+            $ref: "#/$defs/qcom-msm8660-tlmm-state"
+        additionalProperties: false
+
+$defs:
+  qcom-msm8660-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[0-2])$"
+            - enum: [ sdc3_clk, sdc3_cmd, sdc3_data, sdc4_clk, sdc4_cmd, sdc4_data ]
+        minItems: 1
+        maxItems: 36
+
+      function:
+        description:
+          Specify the alternative function to be configured for the specified
+          pins.
+
+        enum: [ gpio, cam_mclk, dsub, ext_gps, gp_clk_0a, gp_clk_0b, gp_clk_1a,
+                gp_clk_1b, gp_clk_2a, gp_clk_2b, gp_mn, gsbi1, gsbi1_spi_cs1_n,
+                gsbi1_spi_cs2a_n, gsbi1_spi_cs2b_n, gsbi1_spi_cs3_n, gsbi2,
+                gsbi2_spi_cs1_n, gsbi2_spi_cs2_n, gsbi2_spi_cs3_n, gsbi3,
+                gsbi3_spi_cs1_n, gsbi3_spi_cs2_n, gsbi3_spi_cs3_n, gsbi4,
+                gsbi5, gsbi6, gsbi7, gsbi8, gsbi9, gsbi10, gsbi11, gsbi12,
+                hdmi, i2s, lcdc, mdp_vsync, mi2s, pcm, ps_hold, sdc1, sdc2,
+                sdc5, tsif1, tsif2, usb_fs1, usb_fs1_oe_n, usb_fs2,
+                usb_fs2_oe_n, vfe, vsens_alarm, ebi2, ebi2cs ]
+
+
+      bias-pull-down: true
+      bias-pull-up: true
+      bias-disable: true
+      drive-strength: 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@800000 {
+        compatible = "qcom,msm8660-pinctrl";
+        reg = <0x800000 0x4000>;
+
+        gpio-controller;
+        gpio-ranges = <&tlmm 0 0 173>;
+        #gpio-cells = <2>;
+        interrupts = <0 16 0x4>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+
+        gsbi3-i2c-state {
+            pins = "gpio43", "gpio44";
+            function = "gsbi3";
+            drive-strength = <8>;
+            bias-disable;
+        };
+    };