- must be "qcom,apq8016-lpass-cpu" for apq8016 lpass
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: must specify the base address and size of the LPAIF
CORE
- region of lpass variant.
-- reg-names:
- Usage: required
- Value type: <stringlist>
- Definition: must be "lpass-lpaif"
-
-- iommus:
- Usage: required for "qcom, lpass-cpu-sc7180" compatible string
- Value type: <prop-encoded-array>
- Definition: sid mask for lpaif memory region to apps_smmu
- must be <&apps_smmu 0x1020 0>
-
-- power-domains:
- Usage: required for "qcom, lpass-cpu-sc7180" compatible string
- Value type: <phandle>
- Definition: reference to power-domains
- must be <&lpass_hm LPASS_CORE_HM_GDSCR>
-
-- clocks:
- Usage: required
- Value type: <phandle>
- Definition: reference to the clocks that match clock-names
-
-- clock-names:
- Usage: required
- Value type: <stringlist>
- Definition: The clocks needed depend on the compatible string:
- qcom,lpass-cpu-apq8016:
- must be "ahbix-clk", "mi2s-osr-clk", "mi2s-bit-clk0",
- mi2s-bit-clk1", "mi2s-bit-clk2", "mi2s-bit-clk3",
- "pcnoc-mport-clk", "pcnoc-sway-clk"
- qcom, lpass-cpu-sc7180:
- must be "noc", "audio-core", "mclk0", "sysnoc_mport",
- "pri_ibit", "sec_ibit"
-
-- #sound-dai-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 1
-
-- interrupts:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: reference to the interrupts that match interrupt-names
-
-- interrupt-names:
- Usage: required
- Value type: <stringlist>
- Definition: must be "lpass-irq-lpaif"
-
-- qcom,adsp:
- Usage: optional
- Value type: <phandle>
- Definition: Phandle for the audio DSP node
-
-= MI2S DAIs (Digial Audio Interface)
-"dais" child node of the lpass node. It represents mi2s dais, each
mi2s dai is
-subnode of "dais" representing board specific dai setup & required
dai clocks.
-"dais" node should have following properties.
-
-- id:
- Usage: required for mi2s interface
- Value type: <u32>
- Definition: Must be dai id defined in lpass bindings like
MI2S_PRIMARY
-
-- qcom,bitclk-name:
- Usage: required for mi2s interface
- Value type: <stringlist>
- Definition: bitclk name corresponds to MI2S of lpass version
-
-- qcom,mclk-name:
- Usage: optional for mi2s interface
- Value type: <stringlist>
- Definition: external mclk name corresponds to MI2S of lpass
version
-
-- qcom,osrclk-name:
- Usage: optional for mi2s interface
- Value type: <stringlist>
- Definition: osrclk name corresponds to MI2S of lpass version
-
-- qcom,spkmode-mask:
- Usage: optional for mi2s interface
- Value type: <u32>
- Definition: board specific property to change default
spkmode mask
- of MI2S dai based on dataline connection on board.
-
-- qcom,micmode-mask:
- Usage: optional for mi2s interface
- Value type: <u32>
- Definition: board specific property to change default
micmode mask
- of MI2S dai based on dataline connection on board.
-
-- qcom,loopback-mask:
- Usage: optional for mi2s interface
- Value type: <u32>
- Definition: board specific property to change default
loopback mask
- of MI2S dai as per requirement.
-
-- qcom,wssrc-mask:
- Usage: optional for mi2s interface
- Value type: <u32>
- Definition: board specific property to change default wssrc
mask
- of MI2S dai based as per requirement.
-
-Example:
-
-lpass_cpu: lpass {
- compatible = "qcom, lpass-cpu-sc7180";
-
- reg = <0 0x62F00000 0 0x29000>;
- reg-names = "lpass-lpaif";
-
- iommus = <&apps_smmu 0x1020 0>;
-
- power-domains = <&lpass_hm LPASS_CORE_HM_GDSCR>;
-
- clocks = <&gcc GCC_LPASS_CFG_NOC_SWAY_CLK>,
- <&lpasscorecc LPASS_AUDIO_CORE_CORE_CLK>,
- <&lpasscorecc LPASS_AUDIO_CORE_EXT_MCLK0_CLK>,
- <&lpasscorecc LPASS_AUDIO_CORE_SYSNOC_MPORT_CORE_CLK>,
- <&lpasscorecc LPASS_AUDIO_CORE_LPAIF_PRI_IBIT_CLK>,
- <&lpasscorecc LPASS_AUDIO_CORE_LPAIF_SEC_IBIT_CLK>;
-
- clock-names = "noc", "audio-core", "mclk0", "sysnoc_mport",
- "pri_ibit", "sec_ibit";
-
- #sound-dai-cells = <1>;
-
- interrupts = <0 160 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "lpass-irq-lpaif";
-
- prim-mi2s@0 {
- id = <MI2S_PRIMARY>;
- qcom,bitclk-name = "pri_ibit";
- qcom,mclk-name = "mclk0";
- };
-
- sec-mi2s@1 {
- id = <MI2S_SECONDARY>;
- qcom,bitclk-name = "sec_ibit";
- };
-};
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 00000000..a87a406
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
@@ -0,0 +1,103 @@
+# 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@xxxxxxxxxx>
+ - Ajit Pandey <ajitp@xxxxxxxxxxxxxx>
+
+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
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - sound-dai-cells
+
+optional:
+ - qcom,adsp
+
+examples:
+ lpass@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>;
+
