plat-nomadik: support varying number of GPIOs per block

Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
[Added constant 32-pin assignment in platform data]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/devices-common.c

@@ -139,6 +139,7 @@ void dbx500_add_gpios(resource_size_t *base, int num, int irq,
 	for (i = 0; i < num; i++, first += 32, irq++) {
 		pdata->first_gpio = first;
 		pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
+		pdata->num_gpio = 32;
 
 		dbx500_add_gpio(i, base[i], irq, pdata);
 	}

arch/arm/plat-nomadik/gpio.c

@@ -35,7 +35,6 @@
  * Symbols in this file are called "nmk_gpio" for "nomadik gpio"
  */
 
-#define NMK_GPIO_PER_CHIP 32
 struct nmk_gpio_chip {
 	struct gpio_chip chip;
 	void __iomem *addr;
@@ -546,7 +545,7 @@ static int nmk_gpio_init_irq(struct nmk_gpio_chip *nmk_chip)
 	int i;
 
 	first_irq = NOMADIK_GPIO_TO_IRQ(nmk_chip->chip.base);
-	for (i = first_irq; i < first_irq + NMK_GPIO_PER_CHIP; i++) {
+	for (i = first_irq; i < first_irq + nmk_chip->chip.ngpio; i++) {
 		set_irq_chip(i, &nmk_gpio_irq_chip);
 		set_irq_handler(i, handle_edge_irq);
 		set_irq_flags(i, IRQF_VALID);
@@ -612,7 +611,6 @@ static struct gpio_chip nmk_gpio_template = {
 	.direction_output	= nmk_gpio_make_output,
 	.set			= nmk_gpio_set_output,
 	.to_irq			= nmk_gpio_to_irq,
-	.ngpio			= NMK_GPIO_PER_CHIP,
 	.can_sleep		= 0,
 };
 
@@ -672,6 +670,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
 
 	chip = &nmk_chip->chip;
 	chip->base = pdata->first_gpio;
+	chip->ngpio = pdata->num_gpio;
 	chip->label = pdata->name ?: dev_name(&dev->dev);
 	chip->dev = &dev->dev;
 	chip->owner = THIS_MODULE;

arch/arm/plat-nomadik/include/plat/gpio.h

@@ -82,6 +82,7 @@ struct nmk_gpio_platform_data {
 	char *name;
 	int first_gpio;
 	int first_irq;
+	int num_gpio;
 };
 
 #endif /* __ASM_PLAT_GPIO_H */