From f743fedc881b38a62ee47d752e59ab1ddb247052 Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Fri, 16 Feb 2024 14:04:44 +0000 Subject: [PATCH] ARM: dts: samsung: exynos4: 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. exynos4.dtsi defines the following SPI 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/20240216140449.2564625-3-tudor.ambarus@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm/boot/dts/samsung/exynos4.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/samsung/exynos4.dtsi b/arch/arm/boot/dts/samsung/exynos4.dtsi index 7f981b5c0d64b..ed47d0ce04e12 100644 --- a/arch/arm/boot/dts/samsung/exynos4.dtsi +++ b/arch/arm/boot/dts/samsung/exynos4.dtsi @@ -621,6 +621,7 @@ clock-names = "spi", "spi_busclk0"; pinctrl-names = "default"; pinctrl-0 = <&spi0_bus>; + fifo-depth = <256>; status = "disabled"; }; @@ -636,6 +637,7 @@ clock-names = "spi", "spi_busclk0"; pinctrl-names = "default"; pinctrl-0 = <&spi1_bus>; + fifo-depth = <64>; status = "disabled"; }; @@ -651,6 +653,7 @@ clock-names = "spi", "spi_busclk0"; pinctrl-names = "default"; pinctrl-0 = <&spi2_bus>; + fifo-depth = <64>; status = "disabled"; }; -- 2.30.2