Re: [PATCH v2 5/7] ARM: dts: samsung: exynos5433: specify the SPI FIFO depth

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Tudor Ambarus <tudor.ambarus@linaro.org>,
	krzysztof.kozlowski+dt@linaro.org, robh@kernel.org,
	conor+dt@kernel.org
Cc: alim.akhtar@samsung.com, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	broonie@kernel.org, andi.shyti@kernel.org,
	semen.protsenko@linaro.org, kernel-team@android.com,
	willmcvicker@google.com, andre.draszik@linaro.org,
	peter.griffin@linaro.org
Subject: Re: [PATCH v2 5/7] ARM: dts: samsung: exynos5433: specify the SPI FIFO depth
Date: Mon, 25 Mar 2024 12:13:36 +0100	[thread overview]
Message-ID: <1d9f160f-e155-4d2b-b598-d1dc76e49110@linaro.org> (raw)
In-Reply-To: <20240216140449.2564625-6-tudor.ambarus@linaro.org>

On 16/02/2024 15:04, Tudor Ambarus wrote:
> Up to now the SPI alias was used as an index into an array defined in
> the SPI driver to determine the SPI FIFO depthj Drop the dependency on
> the SPI alias and specify the SPI FIFO depth directly into the SPI node.
> 
> The FIFO depth were determined based on the SPI aliases that are defined
> in exynos5433-tm2-common.dtsi:
> 	spi0 = &spi_0;
> 	spi1 = &spi_1;
> 	spi2 = &spi_2;
> 	spi3 = &spi_3;
> 	spi4 = &spi_4;
> spi-s3c64xx.c driver defines the following fifo_lvl_mask for the
> "samsung,exynos5433-spi" compatible:
> 	.fifo_lvl_mask  = { 0x1ff, 0x7f, 0x7f, 0x7f, 0x7f, 0x1ff},
> Thus spi{0, 4} were considered having 256 byte FIFO depths, and
> spi{1, 2, 3} having 64 byte FIFO depths. Update device tree with these
> FIFO depths. No functional change expected.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
> ---
>  arch/arm64/boot/dts/exynos/exynos5433.dtsi | 5 +++++

This and next one has wrong subject prefix. I fixed it.

Best regards,
Krzysztof

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