From: Samuel Holland <samuel@sholland.org>
To: Icenowy Zheng <icenowy@aosc.io>, Mark Brown <broonie@kernel.org>,
Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maxime Ripard <mripard@kernel.org>
Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
Icenowy Zheng <icenowy@aosc.io>
Subject: Re: [PATCH 1/4] dt-bindings: spi: sun6i: add DT bindings for Allwinner R329 SPI
Date: Fri, 22 Apr 2022 18:49:53 -0500 [thread overview]
Message-ID: <9ae7d1ee-4e2d-f3c1-f55f-e96b0e449b63@sholland.org> (raw)
In-Reply-To: <BYAPR20MB2472E8B10BFEF75E7950BBC0BCF79@BYAPR20MB2472.namprd20.prod.outlook.com>
On 4/22/22 10:56 AM, icenowy@outlook.com wrote:
> From: Icenowy Zheng <icenowy@aosc.io>
>
> Allwinner R329 SPI has two controllers, and the second one has helper
> functions for MIPI-DBI Type C.
>
> Add compatible strings for these controllers
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> ---
> .../devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
> index ca4c95345a49..6354635241fc 100644
> --- a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
> +++ b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
> @@ -21,6 +21,8 @@ properties:
> oneOf:
> - const: allwinner,sun6i-a31-spi
> - const: allwinner,sun8i-h3-spi
> + - const: allwinner,sun50i-r329-spi
> + - const: allwinner,sun50i-r329-spi-dbi
As far as I'm aware, the SPI portion of the DBI controller is
register-compatible with the regular SPI controller. So I would expect using
that as a fallback compatible for the DBI variant.
Regards,
Samuel
> - items:
> - enum:
> - allwinner,sun8i-r40-spi
>
next prev parent reply other threads:[~2022-04-22 23:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220422155639.1071645-1-icenowy@outlook.com>
2022-04-22 15:56 ` [PATCH 1/4] dt-bindings: spi: sun6i: add DT bindings for Allwinner R329 SPI icenowy
2022-04-22 23:49 ` Samuel Holland [this message]
2022-04-23 0:10 ` Icenowy Zheng
2022-04-22 15:56 ` [PATCH 2/4] spi: sun6i: change OF match data to a struct icenowy
2022-04-22 23:50 ` Samuel Holland
2022-04-22 15:56 ` [PATCH 3/4] spi: sun6i: add quirk for in-controller clock divider icenowy
2022-04-22 23:54 ` Samuel Holland
2022-04-22 23:57 ` Icenowy Zheng
2022-04-22 15:56 ` [PATCH 4/4] spi: sun6i: add support for R329 SPI controllers icenowy
2022-04-22 23:59 ` Samuel Holland
2022-04-23 0:01 ` Icenowy Zheng
2022-04-23 0:07 ` Icenowy Zheng
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