arm64: dts: ti: k3-am65: Enable ECAP nodes at the board level

ECAP nodes defined in the top-level AM65x SoC dtsi files are incomplete
and will not be functional unless they are extended with pinmux
information. (These and the EPWM nodes could be used to trigger internal
actions but they are not used like that currently)

As the pinmux is only known at the board integration level, these
nodes should only be enabled when provided with this information.

Disable the ECAP nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20221028142417.10642-6-afd@ti.com

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index fa4b6eb..5656208 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -550,6 +550,7 @@
 };
 
 &ecap0 {
+       status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&ecap0_pins_default>;
 };

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 49287f8..fbb631c 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -205,6 +205,7 @@
                power-domains = <&k3_pds 39 TI_SCI_PD_EXCLUSIVE>;
                clocks = <&k3_clks 39 0>;
                clock-names = "fck";
+               status = "disabled";
        };
 
        main_spi0: spi@2100000 {

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 3f5a5eb..f4b8747 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -337,6 +337,7 @@
 };
 
 &ecap0 {
+       status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&ecap0_pins_default>;
 };