[PATCH v2 1/7] Documentation: device-tree: sound: Update lpass-cpu driver binding
Ajit Pandey
ajitp at codeaurora.org
Thu May 14 18:38:12 CEST 2020
Done the required cleanups to update lpass-cpu binding with newer
yaml formats.
Signed-off-by: Ajit Pandey <ajitp at codeaurora.org>
---
.../devicetree/bindings/sound/qcom,lpass-cpu.txt | 79 -------------
.../devicetree/bindings/sound/qcom,lpass-cpu.yaml | 131 +++++++++++++++++++++
2 files changed, 131 insertions(+), 79 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
create mode 100644 Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
deleted file mode 100644
index 32c2cdb..0000000
--- a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.txt
+++ /dev/null
@@ -1,79 +0,0 @@
-* Qualcomm Technologies LPASS CPU DAI
-
-This node models the Qualcomm Technologies Low-Power Audio SubSystem (LPASS).
-
-Required properties:
-
-- compatible : "qcom,lpass-cpu" or "qcom,apq8016-lpass-cpu"
-- clocks : Must contain an entry for each entry in clock-names.
-- clock-names : A list which must include the following entries:
- * "ahbix-clk"
- * "mi2s-osr-clk"
- * "mi2s-bit-clk"
- : required clocks for "qcom,lpass-cpu-apq8016"
- * "ahbix-clk"
- * "mi2s-bit-clk0"
- * "mi2s-bit-clk1"
- * "mi2s-bit-clk2"
- * "mi2s-bit-clk3"
- * "pcnoc-mport-clk"
- * "pcnoc-sway-clk"
-
-- interrupts : Must contain an entry for each entry in
- interrupt-names.
-- interrupt-names : A list which must include the following entries:
- * "lpass-irq-lpaif"
-- pinctrl-N : One property must exist for each entry in
- pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
- for details of the property values.
-- pinctrl-names : Must contain a "default" entry.
-- reg : Must contain an address for each entry in reg-names.
-- reg-names : A list which must include the following entries:
- * "lpass-lpaif"
-- #address-cells : Must be 1
-- #size-cells : Must be 0
-
-
-
-Optional properties:
-
-- qcom,adsp : Phandle for the audio DSP node
-
-By default, the driver uses up to 4 MI2S SD lines, for a total of 8 channels.
-The SD lines to use can be configured by adding subnodes for each of the DAIs.
-
-Required properties for each DAI (represented by a subnode):
-- reg : Must be one of the DAI IDs
- (usually part of dt-bindings header)
-- qcom,playback-sd-lines: List of serial data lines to use for playback
- Each SD line should be represented by a number from 0-3.
-- qcom,capture-sd-lines : List of serial data lines to use for capture
- Each SD line should be represented by a number from 0-3.
-
-Note that adding a subnode changes the default to "no lines configured",
-so both playback and capture lines should be configured when a subnode is added.
-
-Example:
-
-lpass at 28100000 {
- compatible = "qcom,lpass-cpu";
- clocks = <&lcc AHBIX_CLK>, <&lcc MI2S_OSR_CLK>, <&lcc MI2S_BIT_CLK>;
- clock-names = "ahbix-clk", "mi2s-osr-clk", "mi2s-bit-clk";
- interrupts = <0 85 1>;
- interrupt-names = "lpass-irq-lpaif";
- pinctrl-names = "default", "idle";
- pinctrl-0 = <&mi2s_default>;
- pinctrl-1 = <&mi2s_idle>;
- reg = <0x28100000 0x10000>;
- reg-names = "lpass-lpaif";
- qcom,adsp = <&adsp>;
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- /* Optional to set different MI2S SD lines */
- dai at 3 {
- reg = <MI2S_QUATERNARY>;
- qcom,playback-sd-lines = <0 1>;
- };
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
new file mode 100644
index 0000000..f2bcafc
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,lpass-cpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm LPASS CPU dai driver bindings
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
+ - Ajit Pandey <ajitp at codeaurora.org>
+
+description:
+ Qualcomm SOC Low-Power Audio SubSystem (LPASS) that consist of MI2S interface
+ for audio data transfer on external codecs. LPASS cpu driver is a module to
+ configure Low-Power Audio Interface(LPAIF) core registers across different
+ IP versions.
+
+properties:
+ compatible:
+ enum:
+ - qcom,lpass-cpu
+ - qcom,apq8016-lpass-cpu
+
+ reg:
+ items:
+ - description: LPAIF core registers
+
+ reg-names:
+ items:
+ - const: lpass-lpaif
+
+ clocks:
+ items:
+ - description: AHBIX core clock for IPQ806X
+ - description: oscillator clock for MI2S external interfaces
+ - description: Bit clock for single MI2S dai in IPQ806X
+ - description: Bit clock for MI2S_PRIMARY dai interface
+ - description: Bit clock for MI2S_SECONDARY dai interface
+ - description: Bit clock for MI2S_TERTIARY dai interface
+ - description: Bit clock for MI2S_QUATERNARY dai interface
+ - description: NOC MPORT clock of LPASS core
+ - description: NOC SWAY clock of LPASS core
+
+ clock-names:
+ items:
+ - const: ahbix-clk
+ - const: mi2s-osr-clk
+ - const: mi2s-bit-clk
+ - const: mi2s-bit-clk0
+ - const: mi2s-bit-clk1
+ - const: mi2s-bit-clk2
+ - const: mi2s-bit-clk3
+ - const: pcnoc-mport-clk
+ - const: pcnoc-sway-clk
+
+ interrupts:
+ items:
+ - description: LPAIF DMA buffer interrupt
+
+ interrupt-names:
+ items:
+ - const: lpass-irq-lpaif
+
+ qcom,adsp:
+ maxItems: 1
+ description: Phandle for the audio DSP node
+
+ '#sound-dai-cells':
+ const: 1
+
+ child-node:
+ description: Required properties for each DAI
+ type: object
+ properties:
+ reg:
+ description: Must be one of the DAI ID
+ (Usually part of dtbindings header)
+ qcom,playback-sd-lines:
+ description: List of serial data lines to use for playback
+ Each SD line should be represented by a number from 0-3.
+ qcom,capture-sd-lines :
+ description: List of serial data lines to use for capture
+ Each SD line should be represented by a number from 0-3.
+ required:
+ -reg
+ # Note that adding a subnode changes the default to "no lines configured",
+ # so both playback and capture lines should be configured when a subnode
+ # is added.
+
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - sound-dai-cells
+
+optional:
+ - qcom,adsp
+
+examples:
+ lpass at 28100000 {
+ compatible = "qcom,lpass-cpu";
+ clocks = <&lcc AHBIX_CLK>,
+ <&lcc MI2S_OSR_CLK>,
+ <&lcc MI2S_BIT_CLK>;
+
+ clock-names = "ahbix-clk",
+ "mi2s-osr-clk",
+ "mi2s-bit-clk";
+
+ interrupts = <0 85 1>;
+ interrupt-names = "lpass-irq-lpaif";
+
+ reg = <0x28100000 0x10000>;
+ reg-names = "lpass-lpaif";
+ #sound-dai-cells = <1>;
+ qcom,adsp = <&adsp>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* Optional to set different MI2S SD lines */
+ mi2s-quaternary at 3 {
+ reg = <MI2S_QUATERNARY>;
+ qcom,playback-sd-lines = <0 1>;
+ };
--
('The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project')
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