[PATCH 4/4] arm: at91: at91sam9x5: fix gpio number per bank

On the serie 5 bank b and d have 19 and 22 pins only.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <redacted>
---
 .../devicetree/bindings/gpio/gpio_atmel.txt        |    5 +++
 arch/arm/boot/dts/at91sam9x5.dtsi                  |    2 ++
 arch/arm/mach-at91/gpio.c                          |   33 +++++++++++++-------
 3 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
index 66efc80..d8dd425 100644
--- a/Documentation/devicetree/bindings/gpio/gpio_atmel.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio_atmel.txt

@@ -9,6 +9,10 @@ Required properties:
   unused).
 - gpio-controller: Marks the device node as a GPIO controller.
 
+optional properties:
+- gpio-nb: Number of gpio if absent 32.

+
+
 Example:
 	pioA: gpio at fffff200 {
 		compatible = "atmel,at91rm9200-gpio";

@@ -16,5 +20,6 @@ Example:
 		interrupts = <2 4>;
 		#gpio-cells = <2>;
 		gpio-controller;
+                gpio-nb = <32>;
 	};