linux-kernel - Re: [PATCH v3 1/4] dt-bindings: reset: sophgo: support SG2042

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Message-ID: <mhng-3e62b204-0a40-4356-888f-060c0515c286@palmer-ri-x1c9>
Date: Thu, 14 Mar 2024 08:17:49 -0700 (PDT)
From: Palmer Dabbelt <palmer@...belt.com>
To: unicornxw@...il.com, inochiama@...look.com, arnd@...nel.org
CC: aou@...s.berkeley.edu, chao.wei@...hgo.com, Conor Dooley <conor@...nel.org>,
  krzysztof.kozlowski+dt@...aro.org, Paul Walmsley <paul.walmsley@...ive.com>, p.zabel@...gutronix.de,
  robh+dt@...nel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
  linux-riscv@...ts.infradead.org, haijiao.liu@...hgo.com, xiaoguang.xing@...hgo.com, guoren@...nel.org,
  jszhang@...nel.org, unicorn_wang@...look.com, krzysztof.kozlowski@...aro.org
Subject:     Re: [PATCH v3 1/4] dt-bindings: reset: sophgo: support SG2042

On Mon, 29 Jan 2024 17:49:45 PST (-0800), unicornxw@...il.com wrote:
> From: Chen Wang <unicorn_wang@...look.com>
>
> Add bindings for the reset generator on the SOPHGO SG2042 RISC-V SoC.
>
> Signed-off-by: Chen Wang <unicorn_wang@...look.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  .../bindings/reset/sophgo,sg2042-reset.yaml   | 35 ++++++++
>  .../dt-bindings/reset/sophgo,sg2042-reset.h   | 87 +++++++++++++++++++
>  2 files changed, 122 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml
>  create mode 100644 include/dt-bindings/reset/sophgo,sg2042-reset.h
>
> diff --git a/Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml b/Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml
> new file mode 100644
> index 000000000000..76e1931f0908
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/sophgo,sg2042-reset.yaml
> @@ -0,0 +1,35 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/reset/sophgo,sg2042-reset.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sophgo SG2042 SoC Reset Controller
> +
> +maintainers:
> +  - Chen Wang <unicorn_wang@...look.com>
> +
> +properties:
> +  compatible:
> +    const: sophgo,sg2042-reset
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#reset-cells":
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#reset-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    rstgen: reset-controller@c00 {
> +        compatible = "sophgo,sg2042-reset";
> +        reg = <0xc00 0xc>;
> +        #reset-cells = <1>;
> +    };
> diff --git a/include/dt-bindings/reset/sophgo,sg2042-reset.h b/include/dt-bindings/reset/sophgo,sg2042-reset.h
> new file mode 100644
> index 000000000000..9ab0980625c1
> --- /dev/null
> +++ b/include/dt-bindings/reset/sophgo,sg2042-reset.h
> @@ -0,0 +1,87 @@
> +/* SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
> +/*
> + * Copyright (C) 2023 Sophgo Technology Inc. All rights reserved.
> + */
> +
> +#ifndef __DT_BINDINGS_RESET_SOPHGO_SG2042_H_
> +#define __DT_BINDINGS_RESET_SOPHGO_SG2042_H_
> +
> +#define RST_MAIN_AP			0
> +#define RST_RISCV_CPU			1
> +#define RST_RISCV_LOW_SPEED_LOGIC	2
> +#define RST_RISCV_CMN			3
> +#define RST_HSDMA			4
> +#define RST_SYSDMA			5
> +#define RST_EFUSE0			6
> +#define RST_EFUSE1			7
> +#define RST_RTC				8
> +#define RST_TIMER			9
> +#define RST_WDT				10
> +#define RST_AHB_ROM0			11
> +#define RST_AHB_ROM1			12
> +#define RST_I2C0			13
> +#define RST_I2C1			14
> +#define RST_I2C2			15
> +#define RST_I2C3			16
> +#define RST_GPIO0			17
> +#define RST_GPIO1			18
> +#define RST_GPIO2			19
> +#define RST_PWM				20
> +#define RST_AXI_SRAM0			21
> +#define RST_AXI_SRAM1			22
> +#define RST_SF0				23
> +#define RST_SF1				24
> +#define RST_LPC				25
> +#define RST_ETH0			26
> +#define RST_EMMC			27
> +#define RST_SD				28
> +#define RST_UART0			29
> +#define RST_UART1			30
> +#define RST_UART2			31
> +#define RST_UART3			32
> +#define RST_SPI0			33
> +#define RST_SPI1			34
> +#define RST_DBG_I2C			35
> +#define RST_PCIE0			36
> +#define RST_PCIE1			37
> +#define RST_DDR0			38
> +#define RST_DDR1			39
> +#define RST_DDR2			40
> +#define RST_DDR3			41
> +#define RST_FAU0			42
> +#define RST_FAU1			43
> +#define RST_FAU2			44
> +#define RST_RXU0			45
> +#define RST_RXU1			46
> +#define RST_RXU2			47
> +#define RST_RXU3			48
> +#define RST_RXU4			49
> +#define RST_RXU5			50
> +#define RST_RXU6			51
> +#define RST_RXU7			52
> +#define RST_RXU8			53
> +#define RST_RXU9			54
> +#define RST_RXU10			55
> +#define RST_RXU11			56
> +#define RST_RXU12			57
> +#define RST_RXU13			58
> +#define RST_RXU14			59
> +#define RST_RXU15			60
> +#define RST_RXU16			61
> +#define RST_RXU17			62
> +#define RST_RXU18			63
> +#define RST_RXU19			64
> +#define RST_RXU20			65
> +#define RST_RXU21			66
> +#define RST_RXU22			67
> +#define RST_RXU23			68
> +#define RST_RXU24			69
> +#define RST_RXU25			70
> +#define RST_RXU26			71
> +#define RST_RXU27			72
> +#define RST_RXU28			73
> +#define RST_RXU29			74
> +#define RST_RXU30			75
> +#define RST_RXU31			76
> +
> +#endif /* __DT_BINDINGS_RESET_SOPHGO_SG2042_H_ */

This is now

Fixes: 1ce7587e507e ("riscv: dts: add reset generator for Sophgo SG2042 SoC")

which landed in Linus' tree.  Looks like that went up via Inochi and 
Arnd.  I don't have that in my for-next yet, so I'm just stashing away 
this patch for my tester.

I'm happy to pick this up if folks want, but it'll probably be cleaner 
somewhere else.