From a0f87a269f660cb41c2b38041183e3e31c69818d Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Fri, 16 Feb 2024 14:04:45 +0000 Subject: [PATCH] ARM: dts: samsung: exynos5250: specify the SPI FIFO depth Up to now the SPI alias was used as an index into an array defined in the SPI driver to determine the SPI FIFO depth. Drop the dependency on the SPI alias and specify the SPI FIFO depth directly into the SPI node. exynos5250.dtsi defines the following aliases: spi0 = &spi_0; spi1 = &spi_1; spi2 = &spi_2; spi-s3c64xx.c driver defines the following fifo_lvl_mask for the "samsung,exynos4210-spi" compatible: .fifo_lvl_mask = { 0x1ff, 0x7F, 0x7F }, Thus spi0 was considered having a 256 byte FIFO depth, and spi1 and spi2 having 64 byte FIFO depth each. Update device tree with these FIFO depths. No functional change expected. Signed-off-by: Tudor Ambarus Link: https://lore.kernel.org/r/20240216140449.2564625-4-tudor.ambarus@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/samsung/exynos5250.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/samsung/exynos5250.dtsi b/arch/arm/boot/dts/samsung/exynos5250.dtsi index 99c84bebf25a4..b9e7c49388180 100644 --- a/arch/arm/boot/dts/samsung/exynos5250.dtsi +++ b/arch/arm/boot/dts/samsung/exynos5250.dtsi @@ -511,6 +511,7 @@ clock-names = "spi", "spi_busclk0"; pinctrl-names = "default"; pinctrl-0 = <&spi0_bus>; + fifo-depth = <256>; }; spi_1: spi@12d30000 { @@ -526,6 +527,7 @@ clock-names = "spi", "spi_busclk0"; pinctrl-names = "default"; pinctrl-0 = <&spi1_bus>; + fifo-depth = <64>; }; spi_2: spi@12d40000 { @@ -541,6 +543,7 @@ clock-names = "spi", "spi_busclk0"; pinctrl-names = "default"; pinctrl-0 = <&spi2_bus>; + fifo-depth = <64>; }; mmc_0: mmc@12200000 { -- 2.30.2