From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Arnd Bergmann <arnd@arndb.de>,
Robin Murphy <robin.murphy@arm.com>,
dri-devel <dri-devel@lists.freedesktop.org>,
Georgi Djakov <georgi.djakov@linaro.org>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>, Yong Deng <yong.deng@magewell.com>,
Frank Rowand <frowand.list@gmail.com>,
Dave Martin <dave.martin@arm.com>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 4/7] of: address: Add support for the dma-parent property
Date: Mon, 11 Feb 2019 14:09:15 +0100 [thread overview]
Message-ID: <20190211130915.6lgenqziixecik5p@flea> (raw)
In-Reply-To: <CAL_Jsq+y++qMkCNehPxZ3J8bfU7Atgppy4uMtTEdPdkt9Xv_jQ@mail.gmail.com>
On Wed, Feb 06, 2019 at 02:57:51PM -0600, Rob Herring wrote:
> On Wed, Feb 6, 2019 at 1:42 PM Maxime Ripard <maxime.ripard@bootlin.com> wrote:
> >
> > Some SoCs have devices that are using a separate bus from the main bus to
> > perform DMA.
> >
> > These buses might have some restrictions and/or different mapping than from
> > the CPU side, so we'd need to express those using the usual dma-ranges, but
> > using a different DT node than the node's parent.
> >
> > Add support for a dma-parent property that links to the DMA bus used by the
> > device in such a case.
>
> ?? dma-parent is gone now, right? And I see #dma-parent-cells?
Urgh, right... I forgot to update the commit log, I'll resend it.
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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next prev parent reply other threads:[~2019-02-11 13:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-06 19:41 [PATCH v2 0/7] sunxi: Add DT representation for the MBUS controller Maxime Ripard
2019-02-06 19:41 ` [PATCH v2 1/7] dt-bindings: interconnect: Add a dma interconnect name Maxime Ripard
2019-02-06 19:41 ` [PATCH v2 2/7] dt-bindings: bus: Add binding for the Allwinner MBUS controller Maxime Ripard
2019-02-06 19:41 ` [PATCH v2 3/7] of: address: Add parent pointer to the __of_translate_address args Maxime Ripard
2019-02-06 19:41 ` [PATCH v2 4/7] of: address: Add support for the dma-parent property Maxime Ripard
2019-02-06 20:57 ` Rob Herring
2019-02-11 13:09 ` Maxime Ripard [this message]
2019-02-06 19:41 ` [PATCH v2 5/7] drm/sun4i: Rely on dma-parent for our RAM offset Maxime Ripard
2019-02-06 19:41 ` [PATCH v2 6/7] clk: sunxi-ng: sun5i: Export the MBUS clock Maxime Ripard
2019-02-06 19:41 ` [PATCH v2 7/7] ARM: dts: sun5i: Add the MBUS controller Maxime Ripard
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