[PATCH 14/25] dt-bindings: power: reset: Add RDA Micro Modem Reset
From: Dang Huynh via B4 Relay <devnull+dang.huynh.mainlining.org@kernel.org>
Date: 2025-09-16 20:25:26
Also in:
b4-sent, dmaengine, linux-clk, linux-devicetree, linux-gpio, linux-hardening, linux-mmc, linux-pm, linux-rtc, lkml
Subsystem:
open firmware and flattened device tree bindings, system reset/shutdown drivers, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Sebastian Reichel, Linus Torvalds
From: Dang Huynh <redacted> Add documentation describing the RDA Micro modem reset controller Signed-off-by: Dang Huynh <redacted> --- .../bindings/power/reset/rda,md-reset.yaml | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/reset/rda,md-reset.yaml b/Documentation/devicetree/bindings/power/reset/rda,md-reset.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..6d09bc8ee6b257aec9d2c4738d285490044003ea
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/rda,md-reset.yaml@@ -0,0 +1,36 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/reset/rda,md-reset.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RDA Micro Modem Reset + +maintainers: + - Dang Huynh <dang.huynh@mainlining.org> + +description: + The modem has a reset register that can be used to fully reset the board. + + To do that, a magic value needs to be written to unprotect the register, + then the soft reset register can be used. + +properties: + compatible: + const: rda,md-reset + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + reset-controller@1a00000 { + compatible = "rda,md-reset"; + reg = <0x1a00000 0x4>; + };
--
2.51.0