[PATCH v3 2/3] ARM: dts: add ngpios for vf610 compatible gpio controllers

[Haibo Chen]

After commit da5dd31efd24 ("gpio: vf610: Switch to gpio-mmio"),
the vf610 GPIO driver no longer uses the static number 32 for
gc->ngpio. This allows users to configure the number of GPIOs
per port.

And some gpio controllers did have less pads. So add 'ngpios' here,
this can save some memory when request bitmap, and also show user
more accurate information when use gpio tools.

Reviewed-by: Frank Li <Frank.Li at nxp.com>
Signed-off-by: Haibo Chen <haibo.chen at nxp.com>
---
 arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi | 4 ++++
 arch/arm/boot/dts/nxp/vf/vfxxx.dtsi    | 5 +++++
 2 files changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi b/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
index 3c6ef7bfba60986b797bb01b843830d364c96d45..880b9a4f32b0846a773dbf9ad30715c84ac2fda6 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx7ulp.dtsi
@@ -399,6 +399,7 @@ gpio_ptc: gpio at 40ae0000 {
 				 <&pcc3 IMX7ULP_CLK_PCTLC>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc1 0 0 20>;
+			ngpios = <20>;
 		};
 
 		gpio_ptd: gpio at 40af0000 {
@@ -413,6 +414,7 @@ gpio_ptd: gpio at 40af0000 {
 				 <&pcc3 IMX7ULP_CLK_PCTLD>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc1 0 32 12>;
+			ngpios = <12>;
 		};
 
 		gpio_pte: gpio at 40b00000 {
@@ -427,6 +429,7 @@ gpio_pte: gpio at 40b00000 {
 				 <&pcc3 IMX7ULP_CLK_PCTLE>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc1 0 64 16>;
+			ngpios = <16>;
 		};
 
 		gpio_ptf: gpio at 40b10000 {
@@ -441,6 +444,7 @@ gpio_ptf: gpio at 40b10000 {
 				 <&pcc3 IMX7ULP_CLK_PCTLF>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc1 0 96 20>;
+			ngpios = <20>;
 		};
 	};
 
diff --git a/arch/arm/boot/dts/nxp/vf/vfxxx.dtsi b/arch/arm/boot/dts/nxp/vf/vfxxx.dtsi
index 597f20be82f1ee044e14bfaf3bd05cff37a8ad39..a275821c35d41e97eb2139a081ef5765d07672aa 100644
--- a/arch/arm/boot/dts/nxp/vf/vfxxx.dtsi
+++ b/arch/arm/boot/dts/nxp/vf/vfxxx.dtsi
@@ -318,6 +318,7 @@ gpio0: gpio at 40049000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				gpio-ranges = <&iomuxc 0 0 32>;
+				ngpios = <32>;
 			};
 
 			gpio1: gpio at 4004a000 {
@@ -329,6 +330,7 @@ gpio1: gpio at 4004a000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				gpio-ranges = <&iomuxc 0 32 32>;
+				ngpios = <32>;
 			};
 
 			gpio2: gpio at 4004b000 {
@@ -340,6 +342,7 @@ gpio2: gpio at 4004b000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				gpio-ranges = <&iomuxc 0 64 32>;
+				ngpios = <32>;
 			};
 
 			gpio3: gpio at 4004c000 {
@@ -351,6 +354,7 @@ gpio3: gpio at 4004c000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				gpio-ranges = <&iomuxc 0 96 32>;
+				ngpios = <32>;
 			};
 
 			gpio4: gpio at 4004d000 {
@@ -362,6 +366,7 @@ gpio4: gpio at 4004d000 {
 				interrupt-controller;
 				#interrupt-cells = <2>;
 				gpio-ranges = <&iomuxc 0 128 7>;
+				ngpios = <7>;
 			};
 
 			anatop: anatop at 40050000 {

-- 
2.34.1