Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and... | linux-arm-kernel

[PATCH v28 0/4] Add ASPEED AST2600 I2C controller driver · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-30
[PATCH v28 1/4] dt-bindings: i2c: Split AST2600 binding into a new YAML · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-30
[PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-30
Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Krzysztof Kozlowski <krzk@kernel.org> · 2026-03-31
RE: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-31
Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Jeremy Kerr <jk@codeconstruct.com.au> · 2026-03-31
RE: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-31
Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Jeremy Kerr <jk@codeconstruct.com.au> · 2026-03-31
RE: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-31
Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Rob Herring <robh@kernel.org> · 2026-04-07
RE: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-04-08
RE: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-04-13
[PATCH v28 3/4] i2c: ast2600: Add controller driver for AST2600 new register set · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-30
[PATCH v28 4/4] i2c: ast2600: Add target mode support · Ryan Chen <ryan_chen@aspeedtech.com> · 2026-03-30

Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties

From: Jeremy Kerr <jk@codeconstruct.com.au>
Date: 2026-03-31 07:00:54
Also in: linux-aspeed, linux-devicetree, linux-i2c, lkml, openbmc

Hi Ryan,

All AST2600 I2C controller instances have DMA hardware.
I will remove the aspeed,enable-dma property and instead expose sysfs
attribute in driver to allow users to enable dma/buffer/byte.

Sounds reasonable, but before you do so, how are you planning to manage
the allocation of DMA channels across multiple i2c peripherals?

Cheers,


Jeremy

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