[PATCH 3/6] arm64: dts: lx2160a-qds: make the QIXIS CPLD use the simple-mfd-i2c.c driver

Ioana Ciornei
2025-04-30T15:41:04Z

The MDIO mux on the LX2160A-QDS never worked in mainline. There is a
downstream driver for the QIXIS FPGA which is very similar to the
already existing drivers/mfd/simple-mfd-i2c. Since the HW works with
simple-mfd-i2c.c there is no point in upstreaming the other one.

Adapt the compatible string and the child node of the FPGA node, so that
the simple-mfd-i2c.c driver accepts it.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
---
arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
index 4d721197d837..d1db38d6a027 100644
--- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
@@ -240,12 +240,14 @@ &i2c0 {
status = "okay";

fpga@66 {
- compatible = "fsl,lx2160aqds-fpga", "fsl,fpga-qixis-i2c",
- "simple-mfd";
+ compatible = "fsl,lx2160a-qds-qixis-i2c";
reg = <0x66>;
+ #address-cells = <1>;
+ #size-cells = <0>;

- mux: mux-controller {
+ mux: mux-controller@54 {
compatible = "reg-mux";
+ reg = <0x54>;
#mux-control-cells = <1>;
mux-reg-masks = <0x54 0xf8>, /* 0: reg 0x54, bits 7:3 */
<0x54 0x07>; /* 1: reg 0x54, bit 2:0 */
--
2.25.1