[RFC,v6,9/9] arm64: dts: imx8m: Add interconnect provider properties

Commit Message

Leonard Crestez Nov. 14, 2019, 8:09 p.m. UTC

Add #interconnect-cells on main &noc so that it will probe the platform
interconnect providers. Other devices can request icc_paths like this:

	interconnects = <&noc BUS_MASTER_ID &noc BUS_SLAVE_ID>

And interconnect-node-id properties on &noc and &ddrc, the interconnect
provider will scan these and make PM QoS frequency requests in response
to banddwith request from other drivers.

Signed-off-by: Leonard Crestez <[e-mail]>
---
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 6 ++++++
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 6 ++++++
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 6 ++++++
 3 files changed, 18 insertions(+)

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index a7eafaedeb40..0a833c188b37 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -6,10 +6,11 @@ 
 #include <dt-bindings/clock/imx8mm-clock.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/thermal/thermal.h>
+#include <dt-bindings/interconnect/imx8mm.h>
 
 #include "imx8mm-pinfunc.h"
 
 / {
 	interrupt-parent = <&gic>;
@@ -777,10 +778,15 @@ 
 		noc: interconnect@32700000 {
 			compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc";
 			reg = <0x32700000 0x100000>;
 			clocks = <&clk IMX8MM_CLK_NOC>;
 			devfreq = <&ddrc>;
+			#interconnect-cells = <1>;
+			fsl,scalable-node-ids = <IMX8MM_ICN_NOC>,
+						<IMX8MM_ICS_DRAM>;
+			fsl,scalable-nodes = <&noc>,
+					     <&ddrc>;
 			operating-points-v2 = <&noc_opp_table>;
 
 			noc_opp_table: opp-table {
 				compatible = "operating-points-v2";
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index fd47f4aef666..b36e8f052e1f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -5,10 +5,11 @@ 
 
 #include <dt-bindings/clock/imx8mn-clock.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interconnect/imx8mn.h>
 
 #include "imx8mn-pinfunc.h"
 
 / {
 	interrupt-parent = <&gic>;
@@ -673,10 +674,15 @@ 
 		noc: interconnect@32700000 {
 			compatible = "fsl,imx8mn-noc", "fsl,imx8m-noc";
 			reg = <0x32700000 0x100000>;
 			clocks = <&clk IMX8MN_CLK_NOC>;
 			devfreq = <&ddrc>;
+			#interconnect-cells = <1>;
+			fsl,scalable-node-ids = <IMX8MN_ICN_NOC>,
+						<IMX8MN_ICS_DRAM>;
+			fsl,scalable-nodes = <&noc>,
+					     <&ddrc>;
 			operating-points-v2 = <&noc_opp_table>;
 
 			noc_opp_table: opp-table {
 				compatible = "operating-points-v2";
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 55231ace5344..83e1a9a18c84 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -9,10 +9,11 @@ 
 #include <dt-bindings/reset/imx8mq-reset.h>
 #include <dt-bindings/gpio/gpio.h>
 #include "dt-bindings/input/input.h"
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/thermal/thermal.h>
+#include <dt-bindings/interconnect/imx8mq.h>
 #include "imx8mq-pinfunc.h"
 
 / {
 	interrupt-parent = <&gpc>;
 
@@ -936,10 +937,15 @@ 
 		noc: interconnect@32700000 {
 			compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc";
 			reg = <0x32700000 0x100000>;
 			clocks = <&clk IMX8MQ_CLK_NOC>;
 			devfreq = <&ddrc>;
+			#interconnect-cells = <1>;
+			fsl,scalable-node-ids = <IMX8MQ_ICN_NOC>,
+						<IMX8MQ_ICS_DRAM>;
+			fsl,scalable-nodes = <&noc>,
+					     <&ddrc>;
 			operating-points-v2 = <&noc_opp_table>;
 
 			noc_opp_table: opp-table {
 				compatible = "operating-points-v2";