From: maxime.ripard@free-electrons.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 3/5] dmaengine: mv_xor: remove support for dmacap,* DT properties
Date: Fri, 19 Jun 2015 12:06:04 +0200 [thread overview]
Message-ID: <20150619100604.GY11732@lukather> (raw)
In-Reply-To: <1434557086-9520-4-git-send-email-thomas.petazzoni@free-electrons.com>
On Wed, Jun 17, 2015 at 06:04:44PM +0200, Thomas Petazzoni wrote:
> The only reason why we had dmacap,* properties is because back when
> DMA_MEMSET was supported, only one out of the two channels per engine
> could do a memset operation. But this is something that the driver
> already knows anyway, and since then, the DMA_MEMSET support has been
> removed.
>
> The driver is already well aware of what each channel supports and the
> one to one mapping between Linux specific implementation details (such
> as dmacap,interrupt enabling DMA_INTERRUPT) and DT properties is a
> good indication that these DT properties are wrong.
>
> Therefore, this commit simply gets rid of these dmacap,* properties,
> they are now ignored, and the driver is responsible for knowing the
> capabilities of the hardware with regard to the dmaengine subsystem
> expectations.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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next prev parent reply other threads:[~2015-06-19 10:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-17 16:04 [PATCHv2 0/5] dmaengine: mv_xor fixes and improvements Thomas Petazzoni
2015-06-17 16:04 ` [PATCHv2 1/5] dmaengine: mv_xor: fix big endian operation in register mode Thomas Petazzoni
2015-06-17 16:04 ` [PATCHv2 2/5] dmaengine: mv_xor: add suspend/resume support Thomas Petazzoni
2015-06-17 16:04 ` [PATCHv2 3/5] dmaengine: mv_xor: remove support for dmacap, * DT properties Thomas Petazzoni
2015-06-19 10:06 ` Maxime Ripard [this message]
2015-06-17 16:04 ` [PATCHv2 4/5] dmaengine: mv_xor: remove mv_xor_chan->current_type field Thomas Petazzoni
2015-06-19 10:06 ` Maxime Ripard
2015-06-17 16:04 ` [PATCHv2 5/5] dmaengine: mv_xor: de-duplicate mv_chan_set_mode*() Thomas Petazzoni
2015-06-19 10:12 ` Maxime Ripard
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