From: Luis de Arquer <ldearquer@gmail.com>
To: Johan Jonker <jbx6244@gmail.com>, broonie@kernel.org
Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
conor+dt@kernel.org, heiko@sntech.de, linux-spi@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org
Subject: Re: [PATCH v1] spi: dt-bindings: spi-rockchip: restrict num-cs
Date: Tue, 23 Jan 2024 10:17:36 +0100 [thread overview]
Message-ID: <d6fc0ad6-ce20-4604-89e5-2598dc3fc0a6@gmail.com> (raw)
In-Reply-To: <acc4ff4b-811a-4a6d-8f58-9d8da3be40bb@gmail.com>
On 1/22/24 23:59, Johan Jonker wrote:
> In the driver spi-rockchip.c max_native_cs is limited to 4 and the
> default num-cs property is 1. Restrict num-cs in spi-rockchip.yaml.
>
Doesn't num-cs include gpio chip selects too?
I have a setup with num-cs = <12> which uses non-native cs-gpios just fine
Luis
> Signed-off-by: Johan Jonker <jbx6244@gmail.com>
> ---
> Documentation/devicetree/bindings/spi/spi-rockchip.yaml | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
> index e4941e9212d1..00d555bcbad3 100644
> --- a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
> +++ b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
> @@ -65,6 +65,11 @@ properties:
> - const: tx
> - const: rx
>
> + num-cs:
> + default: 1
> + minimum: 1
> + maximum: 4
> +
> rx-sample-delay-ns:
> default: 0
> description:
> --
> 2.39.2
>
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
next prev parent reply other threads:[~2024-01-23 9:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-22 22:59 [PATCH v1] spi: dt-bindings: spi-rockchip: restrict num-cs Johan Jonker
2024-01-23 8:33 ` Krzysztof Kozlowski
2024-01-23 9:17 ` Luis de Arquer [this message]
2024-01-23 10:49 ` Johan Jonker
2024-01-23 13:51 ` Luis de Arquer
2024-01-23 17:45 ` Robin Murphy
2024-01-26 19:23 ` Luis de Arquer
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