From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Mario Kicherer <dev@kicherer.org>, Rob Herring <robh@kernel.org>
Cc: linux-spi@vger.kernel.org, han.xu@nxp.com, broonie@kernel.org,
krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 1/2] spi: dt-bindings: spi-fsl-qspi: add optional sampling-delay
Date: Tue, 17 Jan 2023 18:10:43 +0100 [thread overview]
Message-ID: <78fcf85f-b56b-79d1-f2fe-c038f424c72d@linaro.org> (raw)
In-Reply-To: <85967a3fbce7051449f8d2b29ce5a47c@kicherer.org>
On 17/01/2023 17:33, Mario Kicherer wrote:
> Hello,
>
> unfortunately, the rx-sample-delay-ns property does not fit here, as we
> can only delay
> the sampling point between zero and three "half cycles" (or edges), not
> by an arbitrary
> number of nanoseconds.
Why this is a problem for FSL but not for other platforms having exactly
the same constraints/property?
https://lore.kernel.org/all/20221208062955.2546-6-xiangsheng.hou@mediatek.com/
Best regards,
Krzysztof
next prev parent reply other threads:[~2023-01-17 17:10 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-16 11:50 [PATCH 0/2] spi: spi-fsl-qspi: support setting sampling delay through devicetree Mario Kicherer
2023-01-16 11:50 ` [PATCH 1/2] spi: dt-bindings: spi-fsl-qspi: add optional sampling-delay Mario Kicherer
2023-01-16 16:36 ` Rob Herring
2023-01-17 14:10 ` Rob Herring
2023-01-17 16:33 ` Mario Kicherer
2023-01-17 17:10 ` Krzysztof Kozlowski [this message]
2023-01-17 21:05 ` han.xu
2023-01-18 8:01 ` Michael Walle
2023-01-18 8:03 ` Krzysztof Kozlowski
2023-01-18 8:51 ` Michael Walle
2023-01-18 14:58 ` Mario Kicherer
2023-01-16 11:50 ` [PATCH 2/2] spi: spi-fsl-qspi: support setting sampling delay through devicetree Mario Kicherer
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