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@ffefc30000 {
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@xxxxxxxxxxx/
- wrong patch version
- yaml file indent
- missing vendor prefix
- drop okay
rfc:
https://lore.kernel.org/linux-riscv/20230904042559.2322997-1-k.son@xxxxxxxxxxx/
- 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
