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Message-Id: <20220816180157.6711-2-srinivas.kandagatla@linaro.org>
Date: Tue, 16 Aug 2022 19:01:56 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: agross@...nel.org, bjorn.andersson@...aro.org,
linus.walleij@...aro.org
Cc: konrad.dybcio@...ainline.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, srinivas.kandagatla@...aro.org,
linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: pinctrl: qcom: Add sm8450 lpass lpi pinctrl bindings
Add device tree binding Documentation details for Qualcomm SM8450
LPASS(Low Power Audio Sub System) LPI(Low Power Island) pinctrl driver.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
.../qcom,sm8450-lpass-lpi-pinctrl.yaml | 136 ++++++++++++++++++
1 file changed, 136 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml
new file mode 100644
index 000000000000..3d75c87c259d
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,sm8450-lpass-lpi-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. Low Power Audio SubSystem (LPASS)
+ Low Power Island (LPI) TLMM block
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
+
+description: |
+ This binding describes the Top Level Mode Multiplexer block found in the
+ LPASS LPI IP on most Qualcomm SoCs
+
+properties:
+ compatible:
+ const: qcom,sm8450-lpass-lpi-pinctrl
+
+ reg:
+ items:
+ - description: LPASS LPI TLMM Control and Status registers
+ - description: LPASS LPI pins SLEW registers
+
+ clocks:
+ items:
+ - description: LPASS Core voting clock
+ - description: LPASS Audio voting clock
+
+ clock-names:
+ items:
+ - const: core
+ - const: audio
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ description: Specifying the pin number and flags, as defined in
+ include/dt-bindings/gpio/gpio.h
+ const: 2
+
+ gpio-ranges:
+ maxItems: 1
+
+#PIN CONFIGURATION NODES
+patternProperties:
+ '-pins$':
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+ $ref: "/schemas/pinctrl/pincfg-node.yaml"
+
+ properties:
+ pins:
+ description:
+ List of gpio pins affected by the properties specified in this
+ subnode.
+ items:
+ pattern: "^gpio([0-1]|[0-8]])$"
+
+ function:
+ enum: [ swr_tx_clk, swr_tx_data, swr_rx_clk, swr_rx_data,
+ dmic1_clk, dmic1_data, dmic2_clk, dmic2_data, dmic4_clk,
+ dmic4_data, i2s2_clk, i2s2_ws, dmic3_clk, dmic3_data,
+ qua_mi2s_sclk, qua_mi2s_ws, qua_mi2s_data, i2s1_clk, i2s1_ws,
+ i2s1_data, wsa_swr_clk, wsa_swr_data, wsa2_swr_clk,
+ wsa2_swr_data, i2s2_data, i2s4_ws, i2s4_clk, i2s4_data,
+ slimbus_clk, i2s3_clk, i2s3_ws, i2s3_data, slimbus_data,
+ ext_mclk1_c, ext_mclk1_b, ext_mclk1_a, ext_mclk1_d,
+ ext_mclk1_e ]
+
+ description:
+ Specify the alternative function to be configured for the specified
+ pins.
+
+ drive-strength:
+ enum: [2, 4, 6, 8, 10, 12, 14, 16]
+ default: 2
+ description:
+ Selects the drive strength for the specified pins, in mA.
+
+ slew-rate:
+ enum: [0, 1, 2, 3]
+ default: 0
+ description: |
+ 0: No adjustments
+ 1: Higher Slew rate (faster edges)
+ 2: Lower Slew rate (slower edges)
+ 3: Reserved (No adjustments)
+
+ bias-pull-down: true
+
+ bias-pull-up: true
+
+ bias-disable: true
+
+ output-high: true
+
+ output-low: true
+
+ required:
+ - pins
+ - function
+
+ additionalProperties: false
+
+allOf:
+ - $ref: "pinctrl.yaml#"
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - gpio-controller
+ - '#gpio-cells'
+ - gpio-ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/sound/qcom,q6afe.h>
+ lpi_tlmm: pinctrl@...0000 {
+ compatible = "qcom,sm8450-lpass-lpi-pinctrl";
+ reg = <0x3440000 0x20000>,
+ <0x34d0000 0x10000>;
+ clocks = <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
+ <&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
+ clock-names = "core", "audio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&lpi_tlmm 0 0 23>;
+ };
--
2.21.0
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