Add device tree bindings for Low Power Audio subsystem clock controller for
Qualcomm Technology Inc's SDM845 SoCs.
Signed-off-by: Taniya Das <tdas@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/clock/qcom,lpasscc.txt | 46 ++++++++++++++++++++++
include/dt-bindings/clock/qcom,lpass-sdm845.h | 18 +++++++++
2 files changed, 64 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
create mode 100644 include/dt-bindings/clock/qcom,lpass-sdm845.h
diff --git a/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
new file mode 100644
index 0000000..16cabc4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt
@@ -0,0 +1,46 @@
+Qualcomm LPASS Clock Controller Binding
+-----------------------------------------------
+
+Required properties :
+- compatible : shall contain "qcom,sdm845-lpasscc"
+- #clock-cells : from common clock binding, shall contain 1.
+
+Note that #address-cells, #size-cells, and ranges shall be present to ensure
+the lpasscc can address the various lpass cc registers.
+
+Child Node Properties :
+The Low Pass Audio clock controller would need to define the following child
+nodes with the properties.
+- compatible : shall contain all of the below for clocks in each LPASS domain
+ "qcom,sdm845-lpass-gcc",
+ "qcom,sdm845-lpass-cc",
+ "qcom,sdm845-lpass-qdsp6ss"
+- reg : shall contain base register address and size,
+
+Example:
+
+The below node has to be defined in the cases where the LPASS peripheral loader
+would bring the subsystem out of reset.
+
+ lpasscc: clock-controller {
+ compatible = "qcom,sdm845-lpasscc";
+ #clock-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ lpass_gcc@100000 {
+ compatible = "qcom,sdm845-lpass-gcc";
+ reg = <0x00147000 0x20>;
+ };
+
+ lpass@17014000 {
+ compatible = "qcom,sdm845-lpass-cc";
+ reg = <0x17014000 0x1f004>;
+ };
+
+ lpass_q6@17300020 {
+ compatible = "qcom,sdm845-lpass-qdsp6ss";
+ reg = <0x17300020 0x20>;
+ };
+ };
diff --git a/include/dt-bindings/clock/qcom,lpass-sdm845.h b/include/dt-bindings/clock/qcom,lpass-sdm845.h
new file mode 100644
index 0000000..b9d816e
--- /dev/null
+++ b/include/dt-bindings/clock/qcom,lpass-sdm845.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DT_BINDINGS_CLK_SDM_LPASS_SDM845_H
+#define _DT_BINDINGS_CLK_SDM_LPASS_SDM845_H
+
+#define GCC_LPASS_Q6_AXI_CLK 0
+#define GCC_LPASS_SWAY_CLK 1
+#define LPASS_AUDIO_WRAPPER_AON_CLK 2
+#define LPASS_Q6SS_AHBM_AON_CLK 3
+#define LPASS_Q6SS_AHBS_AON_CLK 4
+#define LPASS_QDSP6SS_XO_CLK 5
+#define LPASS_QDSP6SS_SLEEP_CLK 6
+#define LPASS_QDSP6SS_CORE_CLK 7
+
+#endif
--
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