From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: "M'boumba Cedric Madianga" <cedric.madianga@gmail.com>,
mcoquelin.stm32@gmail.com, robh+dt@kernel.org,
pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
linux@arm.linux.org.uk, vinod.koul@intel.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
dmaengine@vger.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings
Date: Thu, 08 Oct 2015 17:43:11 +0200 [thread overview]
Message-ID: <13614799.2Hi64P0fJ2@wuerfel> (raw)
In-Reply-To: <1444317612-818-2-git-send-email-cedric.madianga@gmail.com>
On Thursday 08 October 2015 17:20:09 M'boumba Cedric Madianga wrote:
> +Each dmas request consists of 5 cells:
> +1. A phandle pointing to the STM32 DMA controller
> +2. The channel id
> +3. The request line number
> +4. A 32bit mask specifying the DMA channel configuration
>
It's fairly unusual to encode the channel id here, rather than
letting the driver pick one. Is that actually required here?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings
Date: Thu, 08 Oct 2015 17:43:11 +0200 [thread overview]
Message-ID: <13614799.2Hi64P0fJ2@wuerfel> (raw)
In-Reply-To: <1444317612-818-2-git-send-email-cedric.madianga@gmail.com>
On Thursday 08 October 2015 17:20:09 M'boumba Cedric Madianga wrote:
> +Each dmas request consists of 5 cells:
> +1. A phandle pointing to the STM32 DMA controller
> +2. The channel id
> +3. The request line number
> +4. A 32bit mask specifying the DMA channel configuration
>
It's fairly unusual to encode the channel id here, rather than
letting the driver pick one. Is that actually required here?
Arnd
next prev parent reply other threads:[~2015-10-08 15:43 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-08 15:20 [PATCH 0/4] Add support for STM32 DMA M'boumba Cedric Madianga
2015-10-08 15:20 ` M'boumba Cedric Madianga
2015-10-08 15:20 ` [PATCH 1/4] dt-bindings: Document the STM32 DMA bindings M'boumba Cedric Madianga
2015-10-08 15:20 ` M'boumba Cedric Madianga
2015-10-08 15:43 ` Arnd Bergmann [this message]
2015-10-08 15:43 ` Arnd Bergmann
2015-10-08 16:01 ` M'boumba Cedric Madianga
2015-10-08 16:01 ` M'boumba Cedric Madianga
2015-10-08 19:26 ` Arnd Bergmann
2015-10-08 19:26 ` Arnd Bergmann
2015-10-08 19:26 ` Arnd Bergmann
2015-10-08 20:25 ` M'boumba Cedric Madianga
2015-10-08 20:25 ` M'boumba Cedric Madianga
2015-10-08 20:40 ` Arnd Bergmann
2015-10-08 20:40 ` Arnd Bergmann
2015-10-08 20:40 ` Arnd Bergmann
2015-10-12 19:16 ` Maxime Coquelin
2015-10-12 19:16 ` Maxime Coquelin
2015-10-08 15:20 ` [PATCH 2/4] dmaengine: Add STM32 DMA driver M'boumba Cedric Madianga
2015-10-08 15:20 ` M'boumba Cedric Madianga
2015-10-12 20:09 ` Maxime Coquelin
2015-10-12 20:09 ` Maxime Coquelin
2015-10-12 20:09 ` Maxime Coquelin
2015-10-13 11:25 ` M'boumba Cedric Madianga
2015-10-13 11:25 ` M'boumba Cedric Madianga
2015-10-13 11:50 ` M'boumba Cedric Madianga
2015-10-13 11:50 ` M'boumba Cedric Madianga
2015-10-13 11:50 ` M'boumba Cedric Madianga
2015-10-08 15:20 ` [PATCH 3/4] ARM: dts: Add STM32 DMA support for STM32F429 MCU M'boumba Cedric Madianga
2015-10-08 15:20 ` M'boumba Cedric Madianga
2015-10-08 15:20 ` [PATCH 4/4] ARM: configs: Add STM32 DMA support in STM32 defconfig M'boumba Cedric Madianga
2015-10-08 15:20 ` M'boumba Cedric Madianga
2015-10-12 20:11 ` Maxime Coquelin
2015-10-12 20:11 ` Maxime Coquelin
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