linux-kernel - Re: [PATCH v2 1/2] dt-bindings: reset: eswin: Documentation for eic7700 SoC

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Message-ID: <fbca5b91c43f724656b0a7d7a35176fb2e44d9da.camel@pengutronix.de>
Date: Wed, 04 Jun 2025 12:06:44 +0200
From: Philipp Zabel <p.zabel@...gutronix.de>
To: dongxuyang@...incomputing.com, robh@...nel.org, krzk+dt@...nel.org, 
 conor+dt@...nel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Cc: ningyu@...incomputing.com, linmin@...incomputing.com, 
	huangyifeng@...incomputing.com
Subject: Re: [PATCH v2 1/2] dt-bindings: reset: eswin: Documentation for
 eic7700 SoC

On Mi, 2025-06-04 at 16:52 +0800, dongxuyang@...incomputing.com wrote:
> From: Xuyang Dong <dongxuyang@...incomputing.com>
> 
> Add device tree binding documentation and header file for the ESWIN
> eic7700 reset controller module.
> 
> Signed-off-by: Yifeng Huang <huangyifeng@...incomputing.com>
> Signed-off-by: Xuyang Dong <dongxuyang@...incomputing.com>
> ---
>  .../bindings/reset/eswin,eic7700-reset.yaml   | 41 +++++++++++
>  .../dt-bindings/reset/eswin,eic7700-reset.h   | 73 +++++++++++++++++++
>  2 files changed, 114 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/reset/eswin,eic7700-reset.yaml
>  create mode 100644 include/dt-bindings/reset/eswin,eic7700-reset.h
> 
> diff --git a/Documentation/devicetree/bindings/reset/eswin,eic7700-reset.yaml b/Documentation/devicetree/bindings/reset/eswin,eic7700-reset.yaml
> new file mode 100644
> index 000000000000..85ad5fec9430
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/eswin,eic7700-reset.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/reset/eswin,eic7700-reset.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ESWIN EIC7700 SoC reset controller
> +
> +maintainers:
> +  - Yifeng Huang <huangyifeng@...incomputing.com>
> +  - Xuyang Dong <dongxuyang@...incomputing.com>
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: eswin,eic7700-reset
> +      - const: syscon
> +      - const: simple-mfd
> +
> +  reg:
> +    maxItems: 1
> +
> +  '#reset-cells':
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/reset/eswin,eic7700-reset.h>
> +
> +    reset-controller@...28000 {
> +        compatible = "eswin,eic7700-reset", "syscon", "simple-mfd";
> +        reg = <0x51828000 0x80000>;
> +        #reset-cells = <2>;
> +    };
> diff --git a/include/dt-bindings/reset/eswin,eic7700-reset.h b/include/dt-bindings/reset/eswin,eic7700-reset.h
> new file mode 100644
> index 000000000000..7ba31db86141
> --- /dev/null
> +++ b/include/dt-bindings/reset/eswin,eic7700-reset.h
> @@ -0,0 +1,73 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +/*
> + * Copyright 2024, Beijing ESWIN Computing Technology Co., Ltd.. All rights reserved.
> + *
> + * Device Tree binding constants for EIC7700 reset controller.
> + *
> + * Authors:
> + *	Yifeng Huang <huangyifeng@...incomputing.com>
> + *	Xuyang Dong <dongxuyang@...incomputing.com>
> + */
> +
> +#ifndef __DT_ESWIN_EIC7700_RESET_H__
> +#define __DT_ESWIN_EIC7700_RESET_H__
> +
> +#define SNOC_RST_CTRL 0
> +#define GPU_RST_CTRL 1
> +#define DSP_RST_CTRL 2
> +#define D2D_RST_CTRL 3
> +#define DDR_RST_CTRL 4
> +#define TCU_RST_CTRL 5
> +#define NPU_RST_CTRL 6
> +#define HSPDMA_RST_CTRL 7
> +#define PCIE_RST_CTRL 8
> +#define I2C_RST_CTRL 9
> +#define FAN_RST_CTRL 10
> +#define PVT_RST_CTRL 11
> +#define MBOX_RST_CTRL 12
> +#define UART_RST_CTRL 13
> +#define GPIO_RST_CTRL 14
> +#define TIMER_RST_CTRL 15
> +#define SSI_RST_CTRL 16
> +#define WDT_RST_CTRL 17
> +#define LSP_CFGRST_CTRL 18
> +#define U84_RST_CTRL 19
> +#define SCPU_RST_CTRL 20
> +#define LPCPU_RST_CTRL 21
> +#define VC_RST_CTRL 22
> +#define JD_RST_CTRL 23
> +#define JE_RST_CTRL 24
> +#define VD_RST_CTRL 25
> +#define VE_RST_CTRL 26
> +#define G2D_RST_CTRL 27
> +#define VI_RST_CTRL 28
> +#define DVP_RST_CTRL 29
> +#define ISP0_RST_CTRL 30
> +#define ISP1_RST_CTRL 31
> +#define SHUTTER_RST_CTRL 32
> +#define VO_PHYRST_CTRL 33
> +#define VO_I2SRST_CTRL 34
> +#define VO_RST_CTRL 35
> +#define BOOTSPI_RST_CTRL 36
> +#define I2C1_RST_CTRL 37
> +#define I2C0_RST_CTRL 38
> +#define DMA1_RST_CTRL 39
> +#define FPRT_RST_CTRL 40
> +#define HBLOCK_RST_CTRL 41
> +#define SECSR_RST_CTRL 42
> +#define OTP_RST_CTRL 43
> +#define PKA_RST_CTRL 44
> +#define SPACC_RST_CTRL 45
> +#define TRNG_RST_CTRL 46
> +#define RESERVED 47
> +#define TIMER0_RST_CTRL 48
> +#define TIMER1_RST_CTRL 49
> +#define TIMER2_RST_CTRL 50
> +#define TIMER3_RST_CTRL 51
> +#define RTC_RST_CTRL 52
> +#define MNOC_RST_CTRL 53
> +#define RNOC_RST_CTRL 54
> +#define CNOC_RST_CTRL 55
> +#define LNOC_RST_CTRL 56

These appear to be register offsets, not individual reset control
indices.

Are PIPE_RST_CTRL, TBU_RST_CTRL, and TEST_RST_CTRL left out on purpose?

regards
Philipp