dt-bindings: clock: Add support for LPASS Audio Clock Controller

Audio Clock controller is a block inside LPASS which controls
2 Glitch free muxes to LPASS codec Macros.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20201026120221.18984-2-srinivas.kandagatla@linaro.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Srinivas Kandagatla 2020-10-26 12:02:18 +00:00 committed by Stephen Boyd
parent 4ee9fe3e29
commit a6dee2fe77
2 changed files with 71 additions and 0 deletions

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/qcom,audiocc-sm8250.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Clock bindings for LPASS Audio Clock Controller on SM8250 SoCs
maintainers:
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
description: |
The clock consumer should specify the desired clock by having the clock
ID in its "clocks" phandle cell.
See include/dt-bindings/clock/qcom,sm8250-lpass-audiocc.h for the full list
of Audio Clock controller clock IDs.
properties:
compatible:
const: qcom,sm8250-lpass-audiocc
reg:
maxItems: 1
'#clock-cells':
const: 1
clocks:
items:
- description: LPASS Core voting clock
- description: Glitch Free Mux register clock
clock-names:
items:
- const: core
- const: bus
required:
- compatible
- reg
- '#clock-cells'
- clocks
- clock-names
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,sm8250-lpass-audiocc.h>
#include <dt-bindings/sound/qcom,q6afe.h>
clock-controller@3300000 {
#clock-cells = <1>;
compatible = "qcom,sm8250-lpass-audiocc";
reg = <0x03300000 0x30000>;
clocks = <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
<&q6afecc LPASS_CLK_ID_TX_CORE_MCLK LPASS_CLK_ATTRIBUTE_COUPLE_NO>;
clock-names = "core", "bus";
};

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _DT_BINDINGS_CLK_LPASS_AUDIOCC_SM8250_H
#define _DT_BINDINGS_CLK_LPASS_AUDIOCC_SM8250_H
/* From AudioCC */
#define LPASS_CDC_WSA_NPL 0
#define LPASS_CDC_WSA_MCLK 1
#define LPASS_CDC_RX_MCLK 2
#define LPASS_CDC_RX_NPL 3
#define LPASS_CDC_RX_MCLK_MCLK2 4
#endif /* _DT_BINDINGS_CLK_LPASS_AUDIOCC_SM8250_H */