From: Maxime Ripard <maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>
To: "Clément Péron" <peron.clem-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
Icenowy Zheng <icenowy-h8G6r0blFSE@public.gmane.org>,
Jagan Teki
<jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org>,
Jernej Skrabec <jernej.skrabec-gGgVlfcn5nU@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: Re: [PATCH 1/4] dt-bindings: sound: sun4i-spdif: Add Allwinner H6 compatible
Date: Mon, 15 Apr 2019 10:04:43 +0200 [thread overview]
Message-ID: <20190415080443.frubh4ln4agrdsfe@flea> (raw)
In-Reply-To: <20190411214422.2267-2-peron.clem-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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Hi,
On Thu, Apr 11, 2019 at 11:44:19PM +0200, Clément Péron wrote:
> Allwinner H6 has a SPDIF controller with an increase of the fifo
> size and the possibility to output the master clock.
> However it's still compatible with the already existing driver for
> Allwiner H3.
>
> Add this compatible in the device-tree bindings documentation.
How was this tested?
After looking at the datasheet, it looks like it's still significantly
different. In particular:
- The MCLK divider isn't at the same offset
- The bits to flush the FIFO aren't at the same offset
- The FIFO trigger levels aren't at the same offset
- The FIFO status register layout is almost entirely different
So it doesn't really look compatible to me
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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next prev parent reply other threads:[~2019-04-15 8:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 21:44 [PATCH 0/4] Allwinner H6 SPDIF support Clément Péron
[not found] ` <20190411214422.2267-1-peron.clem-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-04-11 21:44 ` [PATCH 1/4] dt-bindings: sound: sun4i-spdif: Add Allwinner H6 compatible Clément Péron
[not found] ` <20190411214422.2267-2-peron.clem-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2019-04-15 8:04 ` Maxime Ripard [this message]
2019-04-15 8:09 ` Clément Péron
2019-04-15 8:11 ` Clément Péron
[not found] ` <CAJiuCcc0Q8rh8u_30gKi8o07k0+e35UR99ZBHtCjx-DPkJEtdw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-04-15 8:18 ` Maxime Ripard
2019-04-15 8:30 ` Clément Péron
[not found] ` <CAJiuCcedNF0xYSa_+Zfwj-vqYsbjfEpRqisOhEvuitYALMsyjw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-04-15 14:51 ` Maxime Ripard
2019-04-15 16:30 ` Clément Péron
2019-04-16 7:34 ` Maxime Ripard
2019-04-16 8:30 ` Clément Péron
2019-04-15 15:06 ` 'Ondřej Jirman' via linux-sunxi
2019-04-11 21:44 ` [PATCH 2/4] arm64: dts: allwinner: Add SPDIF node for Allwinner H6 Clément Péron
2019-04-11 21:44 ` [PATCH 3/4] arm64: dts: allwinner: h6: Enable SPDIF for Beelink GS1 Clément Péron
2019-04-11 21:44 ` [PATCH 4/4] arm64: defconfig: Enable Sun4i SPDIF module Clément Péron
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