On Wed 27 Jun 07:24 PDT 2018, Sibi Sankar wrote:
> Add SDM845 AOSS (always on subsystem) reset controller binding
>
> Signed-off-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
>
> Not including Rob's earlier Reviewed-by due to change in compatible
>
> .../bindings/reset/qcom,aoss-reset.txt | 52 +++++++++++++++++++
> include/dt-bindings/reset/qcom,sdm845-aoss.h | 17 ++++++
> 2 files changed, 69 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> create mode 100644 include/dt-bindings/reset/qcom,sdm845-aoss.h
>
> diff --git a/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt b/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> new file mode 100644
> index 000000000000..510c748656ec
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> @@ -0,0 +1,52 @@
> +Qualcomm AOSS Reset Controller
> +======================================
> +
> +This binding describes a reset-controller found on AOSS-CC (always on subsystem)
> +for Qualcomm SDM845 SoCs.
> +
> +Required properties:
> +- compatible:
> + Usage: required
> + Value type: <string>
> + Definition: must be:
> + "qcom,sdm845-aoss-cc"
> +
> +- reg:
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: must specify the base address and size of the register
> + space.
> +
> +- #reset-cells:
> + Usage: required
> + Value type: <uint>
> + Definition: must be 1; cell entry represents the reset index.
> +
> +Example:
> +
> +aoss_reset: reset-controller@c2a0000 {
> + compatible = "qcom,sdm845-aoss-cc";
> + reg = <0xc2a0000 0x31000>;
> + #reset-cells = <1>;
> +};
> +
> +Specifying reset lines connected to IP modules
> +==============================================
> +
> +Device nodes that need access to reset lines should
> +specify them as a reset phandle in their corresponding node as
> +specified in reset.txt.
> +
> +For list of all valid reset indicies see
> +<dt-bindings/reset/qcom,sdm845-aoss.h>
> +
> +Example:
> +
> +modem-pil@4080000 {
> + ...
> +
> + resets = <&aoss_reset AOSS_CC_MSS_RESTART>;
> + reset-names = "mss_restart";
> +
> + ...
> +};
> diff --git a/include/dt-bindings/reset/qcom,sdm845-aoss.h b/include/dt-bindings/reset/qcom,sdm845-aoss.h
> new file mode 100644
> index 000000000000..476c5fc873b6
> --- /dev/null
> +++ b/include/dt-bindings/reset/qcom,sdm845-aoss.h
> @@ -0,0 +1,17 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2018 The Linux Foundation. All rights reserved.
> + */
> +
> +#ifndef _DT_BINDINGS_RESET_AOSS_SDM_845_H
> +#define _DT_BINDINGS_RESET_AOSS_SDM_845_H
> +
> +#define AOSS_CC_MSS_RESTART 0
> +#define AOSS_CC_CAMSS_RESTART 1
> +#define AOSS_CC_VENUS_RESTART 2
> +#define AOSS_CC_GPU_RESTART 3
> +#define AOSS_CC_DISPSS_RESTART 4
> +#define AOSS_CC_WCSS_RESTART 5
> +#define AOSS_CC_LPASS_RESTART 6
> +
> +#endif
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
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