[RFC PATCH 38/40] arm64: dts: k3-am6: Add mux-controller dt node required for muxing SERDES

From: Kishon Vijay Abraham I
Date: Fri Sep 21 2018 - 06:27:41 EST


Add mux-controller dt node as a child node of scm_conf. This is
required for muxing SERDES between USB, PCIe and ICSS2 SGMII. While
at that also add "simple-mfd" compatible string to scm_conf dt node
so that mux-controller device gets created.

Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 957c9125a453..4379c370f6f8 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -7,8 +7,15 @@

&cbass_main {
scm_conf: scm_conf@100000 {
- compatible = "syscon";
+ compatible = "syscon", "simple-mfd";
reg = <0 0x00100000 0 0x1c000>;
+
+ serdes_mux: mux-controller {
+ compatible = "mmio-mux";
+ #mux-control-cells = <1>;
+ mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
+ <0x4090 0x3>; /* SERDES1 lane select */
+ };
};

gic500: interrupt-controller@1800000 {
--
2.17.1