[PATCH 2/3] dt-bindings: i3c: ast2600: Add resets and reset-names
From: Dylan Hung <hidden>
Date: 2023-08-08 16:00:17
Also in:
linux-aspeed, linux-devicetree, linux-i3c, lkml
Subsystem:
i3c driver for aspeed ast2600, i3c subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Jeremy Kerr, Alexandre Belloni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add two reset lines to the AST2600 I3C controller: - core_rst: the reset line of the controller itself - global_rst: the reset line of the I3C global register block. Since all six I3C controllers in AST2600 share this global register block, the driver needs to handle this carefully. Generally, this reset line should only need to be de-asserted. Signed-off-by: Dylan Hung <redacted> --- .../devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml b/Documentation/devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml
index fcc3dbff9c9a..3166d6f3a39c 100644
--- a/Documentation/devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml
+++ b/Documentation/devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml@@ -23,7 +23,12 @@ properties: maxItems: 1 resets: - maxItems: 1 + maxItems: 2 + + reset-names: + items: + - const: core_rst + - const: global_rst interrupts: maxItems: 1
@@ -48,6 +53,8 @@ required: - compatible - reg - clocks + - resets + - reset-names - interrupts - aspeed,global-regs
@@ -63,7 +70,8 @@ examples: #address-cells = <3>; #size-cells = <0>; clocks = <&syscon 0>; - resets = <&syscon 0>; + resets = <&syscon 40>, <&syscon 39>; + reset-names = "core_rst", "global_rst"; aspeed,global-regs = <&i3c_global 0>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i3c1_default>;
--
2.25.1
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