Add device tree bindings for Low Power Audio subsystem clock controller for Qualcomm Technology Inc's SDM845 SoCs.
Signed-off-by: Taniya Das <[email protected]> --- .../devicetree/bindings/clock/qcom,gcc.txt | 2 ++ .../devicetree/bindings/clock/qcom,lpasscc.txt | 31 ++++++++++++++++++++++ include/dt-bindings/clock/qcom,gcc-sdm845.h | 2 ++ include/dt-bindings/clock/qcom,lpass-sdm845.h | 16 +++++++++++ 4 files changed, 51 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,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt index 664ea1f..b3ff6e8 100644 --- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt +++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt @@ -32,6 +32,8 @@ be part of GCC and hence the TSENS properties can also be part of the GCC/clock-controller node. For more details on the TSENS properties please refer Documentation/devicetree/bindings/thermal/qcom-tsens.txt +- qcom,lpass-protected : Indicate that the LPASS clock branches within GCC are + unusable due to firmware access control restrictions. Example: clock-controller@900000 { diff --git a/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt new file mode 100644 index 0000000..d312957 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/qcom,lpasscc.txt @@ -0,0 +1,31 @@ +Qualcomm LPASS Clock Controller Binding +----------------------------------------------- + +Required properties : +- compatible : shall contain "qcom,sdm845-lpasscc" +- #clock-cells : from common clock binding, shall contain 1. +- reg : shall contain base register address and size, + in the order + Index-0 maps to LPASS_CC register region + Index-1 maps to LPASS_QDSP6SS register region + +Optional properties : +- reg-names : register names of LPASS domain + "lpass_cc", "lpass_qdsp6ss". + +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"; + reg = <0x17014000 0x1f004>, <0x17300000 0x200>; + reg-names = "lpass_cc", "lpass_qdsp6ss"; + #clock-cells = <1>; + }; + + gcc: clock-controller@100000 { + compatible = "qcom,gcc-sdm845"; + qcom,lpass-protected; + }; diff --git a/include/dt-bindings/clock/qcom,gcc-sdm845.h b/include/dt-bindings/clock/qcom,gcc-sdm845.h index b8eae5a..968fa65 100644 --- a/include/dt-bindings/clock/qcom,gcc-sdm845.h +++ b/include/dt-bindings/clock/qcom,gcc-sdm845.h @@ -197,6 +197,8 @@ #define GCC_QSPI_CORE_CLK_SRC 187 #define GCC_QSPI_CORE_CLK 188 #define GCC_QSPI_CNOC_PERIPH_AHB_CLK 189 +#define GCC_LPASS_Q6_AXI_CLK 190 +#define GCC_LPASS_SWAY_CLK 191 /* GCC Resets */ #define GCC_MMSS_BCR 0 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..015968e --- /dev/null +++ b/include/dt-bindings/clock/qcom,lpass-sdm845.h @@ -0,0 +1,16 @@ +/* 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 LPASS_AUDIO_WRAPPER_AON_CLK 0 +#define LPASS_Q6SS_AHBM_AON_CLK 1 +#define LPASS_Q6SS_AHBS_AON_CLK 2 +#define LPASS_QDSP6SS_XO_CLK 3 +#define LPASS_QDSP6SS_SLEEP_CLK 4 +#define LPASS_QDSP6SS_CORE_CLK 5 + +#endif -- Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member of the Code Aurora Forum, hosted by the Linux Foundation.
