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| author | Alexey Charkov <alchark@gmail.com> | 2025-02-04 13:02:28 +0400 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2025-02-10 13:03:46 +0100 |
| commit | 52cababc9c1914ebf50929bfb9a67c8f74cd60ab (patch) | |
| tree | 68f425707e32dea451034769e510c201d44a147d | |
| parent | arm64: dts: rockchip: add 'chassis-type' property on PineNote (diff) | |
| download | linux-52cababc9c1914ebf50929bfb9a67c8f74cd60ab.tar.gz linux-52cababc9c1914ebf50929bfb9a67c8f74cd60ab.zip | |
arm64: dts: rockchip: switch Rock 5C to PMIC-based TSHUT reset
Radxa Rock 5C supports both CRU-based (default) and PMIC-based reset
upon thermal runaway conditions. The former resets the SoC by internally
poking the CRU from TSADC, while the latter power-cycles the whole board
by pulling the PMIC reset line low in case of uncontrolled overheating.
Switch to a PMIC-based reset, as the more 'thorough' of the two.
Tested by temporarily setting rockchip,hw-tshut-temp to 65C to simulate
overheating - this causes the board to reset when any of the on-chip
temperature sensors surpasses the tshut temperature.
Requires Alexander's patch [1] fixing TSADC pinctrl assignment
[1] https://lore.kernel.org/r/20250130053849.4902-1-eagle.alexander923@gmail.com
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/20250204-rock-5c-tshut-v1-1-33301e4eef64@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts index 9dcf774706ca..ef8ce10d8f50 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts @@ -873,6 +873,8 @@ }; &tsadc { + rockchip,hw-tshut-mode = <1>; /* tshut mode 0:CRU 1:GPIO */ + rockchip,hw-tshut-polarity = <0>; /* tshut polarity 0:LOW 1:HIGH */ status = "okay"; }; |