[PATCH 3/3] arm64: dts: qcom: ipq5332-rdp-common: Enable quad SPI mode for SPI-NAND

[Md Sadre Alam]

The SPI-NAND device on the IPQ5332 RDP supports 4-bit data transfers, but
the device tree does not describe the bus width, so transfers use the
default single-bit mode.

Set spi-rx-bus-width and spi-tx-bus-width to 4 to enable quad read and
write transfers and improve SPI-NAND throughput.

Signed-off-by: Md Sadre Alam <md.alam@xxxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi b/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi
index 3bbf748f2e5c..6f5b193a204b 100644
--- a/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi
@@ -141,5 +141,7 @@ flash@0 {
 		nand-ecc-engine = <&qpic_nand>;
 		nand-ecc-strength = <4>;
 		nand-ecc-step-size = <512>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
 	};
 };

-- 
2.34.1