[PATCH 3/4] dt-bindings: power: reset: Add regmap support to the SYSCON reboot-mode bindings
From: <hidden>
Date: 2020-03-06 13:04:06
Also in:
linux-pm, 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: Serge Semin <redacted> Optional regmap property will be used to refer to a syscon-controller having a reboot tolerant register mapped. Signed-off-by: Serge Semin <redacted> Signed-off-by: Alexey Malahov <redacted> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <redacted> --- .../bindings/power/reset/syscon-reboot-mode.yaml | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml
index e09bb07b1abb..f47bf52ad983 100644
--- a/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml
+++ b/Documentation/devicetree/bindings/power/reset/syscon-reboot-mode.yaml@@ -13,9 +13,8 @@ description: | This driver gets reboot mode magic value from reboot-mode driver and stores it in a SYSCON mapped register. Then the bootloader can read it and take different action according to the magic - value stored. The SYSCON mapped register is retrieved from the - parental dt-node plus the offset. So the SYSCON reboot-mode node - should be represented as a sub-node of a "syscon", "simple-mfd" node. + value stored. The SYSCON mapped register is retrieved either from + the parental dt-node or from a regmap phandle plus the offset. properties: compatible:
@@ -29,6 +28,10 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32 description: Offset in the register map for the mode register (in bytes). + regmap: + $ref: /schemas/types.yaml#/definitions/phandle + description: Phandle to the register map node. + patternProperties: "^mode-.+": $ref: /schemas/types.yaml#/definitions/uint32
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2.25.1