From: Ryan Chen <ryan_chen@aspeedtech•com>
To: <jk@codeconstruct•com.au>, <andriy.shevchenko@linux•intel.com>,
Andi Shyti <andi.shyti@kernel•org>, Rob Herring <robh@kernel•org>,
Krzysztof Kozlowski <krzk+dt@kernel•org>,
Conor Dooley <conor+dt@kernel•org>, Joel Stanley <joel@jms•id.au>,
Andrew Jeffery <andrew@codeconstruct•com.au>,
"Benjamin Herrenschmidt" <benh@kernel•crashing.org>,
Rayn Chen <rayn_chen@aspeedtech•com>,
Philipp Zabel <p.zabel@pengutronix•de>
Cc: <linux-i2c@vger•kernel.org>, <devicetree@vger•kernel.org>,
<linux-arm-kernel@lists•infradead.org>,
<linux-aspeed@lists•ozlabs.org>, <linux-kernel@vger•kernel.org>,
<openbmc@lists•ozlabs.org>, Ryan Chen <ryan_chen@aspeedtech•com>,
Conor Dooley <conor.dooley@microchip•com>
Subject: [PATCH v31 3/5] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs properties
Date: Wed, 3 Jun 2026 13:50:15 +0800 [thread overview]
Message-ID: <20260603-upstream_i2c-v31-3-ba7a02714f22@aspeedtech.com> (raw)
In-Reply-To: <20260603-upstream_i2c-v31-0-ba7a02714f22@aspeedtech.com>
Add the aspeed,global-regs phandle to reference the AST2600 global
registers syscon node, containing the SoC-common I2C register set.
These properties apply only to the AST2600 binding. Legacy DTs remain
unchanged.
Acked-by: Conor Dooley <conor.dooley@microchip•com>
Reviewed-by: Rob Herring (Arm) <robh@kernel•org>
Signed-off-by: Ryan Chen <ryan_chen@aspeedtech•com>
---
Changes in v29:
- remove aspeed,enable-dma properties.
Changes in v28:
- update commit message correspond with aspeed,enable-dma.
- remove aspeed,transfer-mode and add aspeed,enable-dma property and
description.
- Fix aspeed,enable-dma description to reflect hardware capability rather
than software behavior
Changes in v27:
- change aspeed,transfer-mode to aspeed,enable-dma.
---
Documentation/devicetree/bindings/i2c/aspeed,ast2600-i2c.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/aspeed,ast2600-i2c.yaml b/Documentation/devicetree/bindings/i2c/aspeed,ast2600-i2c.yaml
index abc614315dff..21469715d845 100644
--- a/Documentation/devicetree/bindings/i2c/aspeed,ast2600-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/aspeed,ast2600-i2c.yaml
@@ -48,6 +48,12 @@ properties:
resets:
maxItems: 1
+ aspeed,global-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle reference to the i2c global syscon node, containing the
+ SoC-common i2c register set.
+
required:
- reg
- compatible
@@ -70,4 +76,5 @@ examples:
resets = <&syscon ASPEED_RESET_I2C>;
clock-frequency = <100000>;
interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ aspeed,global-regs = <&i2c_global>;
};
--
2.34.1
next prev parent reply other threads:[~2026-06-03 5:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-03 5:50 [PATCH v31 0/5] Add ASPEED AST2600 I2C controller driver Ryan Chen
2026-06-03 5:50 ` [PATCH v31 1/5] dt-bindings: i2c: Split AST2600 binding into a new YAML Ryan Chen
2026-06-03 5:50 ` [PATCH v31 2/5] i2c: aspeed: Read clock-frequency via i2c_parse_fw_timings() Ryan Chen
2026-06-03 5:50 ` Ryan Chen [this message]
2026-06-03 5:50 ` [PATCH v31 4/5] i2c: ast2600: Add controller driver for AST2600 new register set Ryan Chen
2026-06-03 5:50 ` [PATCH v31 5/5] i2c: ast2600: Add target mode support Ryan Chen
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