[PATCH 2/2] arm64: dts: rockchip: rk3308: Add gpio-ranges properties

[Matthijs Kooijman <matthijs@stdin.nl>]

This makes the mapping between gpio and pinctrl explicit.

This does not immediately change functionality, because the
gpio-rockchip.c driver has a workaround that defines ranges when they
are not present in DT, but that relies on global gpio numbering (so
AFAICS only works when the rockchip gpio banks are initialized first and
in-order). This prevents the fragility of the workaround for rk3308.

Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
---
 arch/arm64/boot/dts/rockchip/rk3308.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index 31c25de2d689c..681d2429d541d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -889,6 +889,7 @@ gpio0: gpio@ff220000 {
 			interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cru PCLK_GPIO0>;
 			gpio-controller;
+			gpio-ranges = <&pinctrl 0 0 32>;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -900,6 +901,7 @@ gpio1: gpio@ff230000 {
 			interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cru PCLK_GPIO1>;
 			gpio-controller;
+			gpio-ranges = <&pinctrl 0 32 32>;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -911,6 +913,7 @@ gpio2: gpio@ff240000 {
 			interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cru PCLK_GPIO2>;
 			gpio-controller;
+			gpio-ranges = <&pinctrl 0 64 32>;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -922,6 +925,7 @@ gpio3: gpio@ff250000 {
 			interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cru PCLK_GPIO3>;
 			gpio-controller;
+			gpio-ranges = <&pinctrl 0 96 32>;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
@@ -933,6 +937,7 @@ gpio4: gpio@ff260000 {
 			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cru PCLK_GPIO4>;
 			gpio-controller;
+			gpio-ranges = <&pinctrl 0 128 32>;
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
-- 
2.48.1