From: Ronald Wahl <ronald.wahl@xxxxxxxxxxx>
On the AM62 platform we have no single 1:1 relation regarding index of
gpio and pin controller. Actually there are some linear ranges with
small holes inbetween. These ranges can be represented with the
gpio-ranges device tree property. They have been extracted manually
from the AM62x datasheet (Table 6-1. Pin Attributes).
Signed-off-by: Ronald Wahl <ronald.wahl@xxxxxxxxxxx>
---
arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 284b90c94da8..587d197e82c4 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -492,6 +492,9 @@ main_gpio_intr: interrupt-controller@a00000 {
main_gpio0: gpio@600000 {
compatible = "ti,am64-gpio", "ti,keystone-gpio";
reg = <0x0 0x00600000 0x0 0x100>;
+ gpio-ranges = <&main_pmx0 0 0 32>,
+ <&main_pmx0 32 33 38>,
+ <&main_pmx0 70 72 22>;
gpio-controller;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
@@ -510,6 +513,10 @@ main_gpio1: gpio@601000 {
compatible = "ti,am64-gpio", "ti,keystone-gpio";
reg = <0x0 0x00601000 0x0 0x100>;
gpio-controller;
+ gpio-ranges = <&main_pmx0 0 94 41>,
+ <&main_pmx0 41 136 6>,
+ <&main_pmx0 47 143 3>,
+ <&main_pmx0 50 149 2>;
#gpio-cells = <2>;
interrupt-parent = <&main_gpio_intr>;
interrupts = <180>, <181>, <182>,
--
2.41.0
