From: Jeremy Kerr <jk@codeconstruct.com.au>
To: Ryan Chen <ryan_chen@aspeedtech.com>,
Krzysztof Kozlowski <krzk@kernel.org>
Cc: "andriy.shevchenko@linux.intel.com"
<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>,
Philipp Zabel <p.zabel@pengutronix.de>,
"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-aspeed@lists.ozlabs.org" <linux-aspeed@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org>
Subject: Re: [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties
Date: Tue, 31 Mar 2026 15:00:43 +0800 [thread overview]
Message-ID: <09cbc12bea5707f794e139ea1bfafac82c2d2c12.camel@codeconstruct.com.au> (raw)
In-Reply-To: <TY2PPF5CB9A1BE6F267C60EEC34B6A75400F253A@TY2PPF5CB9A1BE6.apcprd06.prod.outlook.com>
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
next prev parent reply other threads:[~2026-03-31 7:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-30 8:21 [PATCH v28 0/4] Add ASPEED AST2600 I2C controller driver Ryan Chen
2026-03-30 8:21 ` [PATCH v28 1/4] dt-bindings: i2c: Split AST2600 binding into a new YAML Ryan Chen
2026-03-30 8:21 ` [PATCH v28 2/4] dt-bindings: i2c: ast2600-i2c.yaml: Add global-regs and enable-dma properties Ryan Chen
2026-03-31 6:47 ` Krzysztof Kozlowski
2026-03-31 6:58 ` Ryan Chen
2026-03-31 7:00 ` Jeremy Kerr [this message]
2026-03-31 7:09 ` Ryan Chen
2026-03-31 7:17 ` Jeremy Kerr
2026-03-31 7:30 ` Ryan Chen
2026-03-30 8:21 ` [PATCH v28 3/4] i2c: ast2600: Add controller driver for AST2600 new register set Ryan Chen
2026-03-30 8:21 ` [PATCH v28 4/4] i2c: ast2600: Add target mode support Ryan Chen
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