linux-kernel - [PATCH v3 0/3] Introduce reset driver for T-HEAD th1520 SoC

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Date:   Mon, 18 Sep 2023 04:51:22 +0000
From:   Kwanghoon Son <k.son@...sung.com>
To:     p.zabel@...gutronix.de, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        jszhang@...nel.org, guoren@...nel.org, wefu@...hat.com,
        paul.walmsley@...ive.com, palmer@...belt.com,
        aou@...s.berkeley.edu, inki.dae@...sung.com
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: [PATCH v3 0/3] Introduce reset driver for T-HEAD th1520 SoC

This patchset adds initial support for reset driver.
Register information is from vendor kernel [1].
I sent an e-mail to get permission the original author,
but there was no answer. So I upload patch since it has GPL license.

This patch also can be tested with watchdog simply with 

watchdog0: watchdog@...fc30000 {
        compatible = "snps,dw-wdt";
        reg = <0xff 0xefc30000 0x0 0x1000>;
        interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&osc>;
        resets = <&rst TH1520_RESET_WDT0>;
};

[1] https://github.com/revyos/thead-kernel

Changelog:
v2:
https://lore.kernel.org/linux-riscv/20230912024914.3769440-1-k.son@samsung.com/
- wrong patch version
- yaml file indent
- missing vendor prefix
- drop okay

rfc:
https://lore.kernel.org/linux-riscv/20230904042559.2322997-1-k.son@samsung.com/
- dt_binding_check
- enable reset controller default

Kwanghoon Son (3):
  dt-bindings: reset: Document th1520 reset control
  reset: Add th1520 reset driver support
  riscv: dts: Add th1520 reset device tree

 .../bindings/reset/thead,th1520-reset.yaml    |  44 +++++++
 arch/riscv/boot/dts/thead/th1520.dtsi         |   7 ++
 drivers/reset/Kconfig                         |  10 ++
 drivers/reset/Makefile                        |   1 +
 drivers/reset/reset-th1520.c                  | 109 ++++++++++++++++++
 .../dt-bindings/reset/thead,th1520-reset.h    |   9 ++
 6 files changed, 180 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/thead,th1520-reset.yaml
 create mode 100644 drivers/reset/reset-th1520.c
 create mode 100644 include/dt-bindings/reset/thead,th1520-reset.h

-- 
2.34.1