linux-kernel - [PATCH v2 7/7] ARM: dts: samsung: s5pv210: specify the SPI FIFO depth

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Date: Fri, 16 Feb 2024 14:04:49 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: krzysztof.kozlowski+dt@...aro.org,
	robh@...nel.org,
	conor+dt@...nel.org
Cc: alim.akhtar@...sung.com,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	broonie@...nel.org,
	andi.shyti@...nel.org,
	semen.protsenko@...aro.org,
	kernel-team@...roid.com,
	willmcvicker@...gle.com,
	andre.draszik@...aro.org,
	peter.griffin@...aro.org,
	Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH v2 7/7] ARM: dts: samsung: s5pv210: 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.

The SPI nodes defined in s5pv210.dtsi are not enabled in any board file.
No SPI aliases are defined, thus choose the FIFO depth using common
sense: index 0 of the array for spi0, and index 1 for spi1.
No functional change expected.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
 arch/arm/boot/dts/samsung/s5pv210.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/samsung/s5pv210.dtsi b/arch/arm/boot/dts/samsung/s5pv210.dtsi
index ed560c9a3aa1..3eba870db73f 100644
--- a/arch/arm/boot/dts/samsung/s5pv210.dtsi
+++ b/arch/arm/boot/dts/samsung/s5pv210.dtsi
@@ -161,6 +161,7 @@ spi0: spi@...00000 {
 			pinctrl-0 = <&spi0_bus>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			fifo-depth = <256>;
 			status = "disabled";
 		};
 
@@ -177,6 +178,7 @@ spi1: spi@...00000 {
 			pinctrl-0 = <&spi1_bus>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			fifo-depth = <64>;
 			status = "disabled";
 		};
 
-- 
2.44.0.rc0.258.g7320e95886-goog