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Message-Id: <20221005-mdm9615-pinctrl-yaml-v2-1-639fe67a04be@linaro.org>
Date: Mon, 17 Oct 2022 12:23:05 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Lee Jones <lee@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Andy Gross <agross@...nel.org>,
Mark Brown <broonie@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Linus Walleij <linus.walleij@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Bjorn Andersson <andersson@...nel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-gpio@...r.kernel.org,
Neil Armstrong <neil.armstrong@...aro.org>,
devicetree@...r.kernel.org
Subject: [PATCH v2 1/5] dt-bindings: pinctrl: convert qcom,mdm9615-pinctrl.txt to
dt-schema
Convert the MDM9515 pinctrl bindings to dt-schema.
Keep the parsing of pin configuration subnodes consistent with other Qualcomm
schemas (children named with '-state' suffix, optional children with '-pins').
Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
.../bindings/pinctrl/qcom,mdm9615-pinctrl.txt | 161 ---------------------
.../bindings/pinctrl/qcom,mdm9615-pinctrl.yaml | 120 +++++++++++++++
2 files changed, 120 insertions(+), 161 deletions(-)
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,mdm9615-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,mdm9615-pinctrl.txt
deleted file mode 100644
index d46973968873..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/qcom,mdm9615-pinctrl.txt
+++ /dev/null
@@ -1,161 +0,0 @@
-Qualcomm MDM9615 TLMM block
-
-This binding describes the Top Level Mode Multiplexer block found in the
-MDM9615 platform.
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be "qcom,mdm9615-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-gpio87
-
-- function:
- Usage: required
- Value type: <string>
- Definition: Specify the alternative function to be configured for the
- specified pins.
- Valid values are:
- gpio, gsbi2_i2c, gsbi3, gsbi4, gsbi5_i2c, gsbi5_uart,
- sdc2, ebi2_lcdc, ps_hold, prim_audio, sec_audio,
- cdc_mclk
-
-- 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.
-
-- output-low:
- Usage: optional
- Value type: <none>
- Definition: The specified pins are configured in output mode, driven
- low.
-
-- 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:
-
- msmgpio: pinctrl@...000 {
- compatible = "qcom,mdm9615-pinctrl";
- reg = <0x800000 0x4000>;
-
- gpio-controller;
- #gpio-cells = <2>;
- gpio-ranges = <&msmgpio 0 0 88>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupts = <0 16 0x4>;
-
- gsbi8_uart: gsbi8-uart {
- mux {
- pins = "gpio34", "gpio35";
- function = "gsbi8";
- };
-
- tx {
- pins = "gpio34";
- drive-strength = <4>;
- bias-disable;
- };
-
- rx {
- pins = "gpio35";
- drive-strength = <2>;
- bias-pull-up;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,mdm9615-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,mdm9615-pinctrl.yaml
new file mode 100644
index 000000000000..69a8549beef6
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,mdm9615-pinctrl.yaml
@@ -0,0 +1,120 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,mdm9615-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. MDM9615 TLMM block
+
+maintainers:
+ - Bjorn Andersson <andersson@...nel.org>
+
+description: Top Level Mode Multiplexer pin controller in Qualcomm MDM9615 SoC.
+
+$ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,mdm9615-pinctrl
+
+ reg:
+ maxItems: 1
+
+ interrupts: true
+ interrupt-controller: true
+ '#interrupt-cells': true
+ gpio-controller: true
+ '#gpio-cells': true
+ gpio-ranges: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+patternProperties:
+ "-state$":
+ oneOf:
+ - $ref: "#/$defs/qcom-mdm9615-pinctrl-state"
+ - patternProperties:
+ "-pins$":
+ $ref: "#/$defs/qcom-mdm9615-pinctrl-state"
+ additionalProperties: false
+
+$defs:
+ qcom-mdm9615-pinctrl-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:
+ pattern: "^gpio([0-9]|[1-7][0-9]|8[0-7])$"
+ minItems: 1
+ maxItems: 16
+
+ function:
+ description:
+ Specify the alternative function to be configured for the specified
+ pins.
+
+ enum: [ gpio, gsbi2_i2c, gsbi3, gsbi4, gsbi5_i2c, gsbi5_uart,
+ sdc2, ebi2_lcdc, ps_hold, prim_audio, sec_audio, cdc_mclk, ]
+
+ bias-disable: true
+ bias-pull-down: true
+ bias-pull-up: true
+ drive-strength: true
+ output-high: true
+ output-low: true
+ input-enable: true
+
+ required:
+ - pins
+ - function
+
+ additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ tlmm: pinctrl@...0000 {
+ compatible = "qcom,mdm9615-pinctrl";
+ reg = <0x01000000 0x300000>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ gpio-ranges = <&msmgpio 0 0 88>;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ gsbi3-state {
+ pins = "gpio8", "gpio9", "gpio10", "gpio11";
+ function = "gsbi3";
+ drive-strength = <8>;
+ bias-disable;
+ };
+
+ gsbi5-i2c-state {
+ sda-pins {
+ pins = "gpio16";
+ function = "gsbi5_i2c";
+ drive-strength = <8>;
+ bias-disable;
+ };
+
+ scl-pins {
+ pins = "gpio17";
+ function = "gsbi5_i2c";
+ drive-strength = <2>;
+ bias-disable;
+ };
+ };
+ };
--
b4 0.10.1
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