Commit 0bdfeddc authored by Roland Stigge's avatar Roland Stigge Committed by Linus Walleij
Browse files

gpio: gpio-lpc32xx: Add gpio_to_irq mapping 



This patch helps mapping with gpio_to_irq for the GPIOs that are irq enabled.

Signed-off-by: default avatarRoland Stigge <stigge@antcom.de>
Tested-by: default avatarAlexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 0c65ddd4

drivers/gpio/gpio-lpc32xx.c

+65 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#include <mach/hardware.h>

#include <mach/platform.h>

#include <mach/gpio-lpc32xx.h>

#include <mach/irqs.h>



#define LPC32XX_GPIO_P3_INP_STATE		_GPREG(0x000)

#define LPC32XX_GPIO_P3_OUTP_SET		_GPREG(0x004)
@@ -367,6 +368,66 @@ static int lpc32xx_gpio_request(struct gpio_chip *chip, unsigned pin) 
	return -EINVAL;

}



static int lpc32xx_gpio_to_irq_p01(struct gpio_chip *chip, unsigned offset)

{

	return IRQ_LPC32XX_P0_P1_IRQ;

}



static const char lpc32xx_gpio_to_irq_gpio_p3_table[] = {

	IRQ_LPC32XX_GPIO_00,

	IRQ_LPC32XX_GPIO_01,

	IRQ_LPC32XX_GPIO_02,

	IRQ_LPC32XX_GPIO_03,

	IRQ_LPC32XX_GPIO_04,

	IRQ_LPC32XX_GPIO_05,

};



static int lpc32xx_gpio_to_irq_gpio_p3(struct gpio_chip *chip, unsigned offset)

{

	if (offset < ARRAY_SIZE(lpc32xx_gpio_to_irq_gpio_p3_table))

		return lpc32xx_gpio_to_irq_gpio_p3_table[offset];

	return -ENXIO;

}



static const char lpc32xx_gpio_to_irq_gpi_p3_table[] = {

	IRQ_LPC32XX_GPI_00,

	IRQ_LPC32XX_GPI_01,

	IRQ_LPC32XX_GPI_02,

	IRQ_LPC32XX_GPI_03,

	IRQ_LPC32XX_GPI_04,

	IRQ_LPC32XX_GPI_05,

	IRQ_LPC32XX_GPI_06,

	IRQ_LPC32XX_GPI_07,

	IRQ_LPC32XX_GPI_08,

	IRQ_LPC32XX_GPI_09,

	-ENXIO, /* 10 */

	-ENXIO, /* 11 */

	-ENXIO, /* 12 */

	-ENXIO, /* 13 */

	-ENXIO, /* 14 */

	-ENXIO, /* 15 */

	-ENXIO, /* 16 */

	-ENXIO, /* 17 */

	-ENXIO, /* 18 */

	IRQ_LPC32XX_GPI_19,

	-ENXIO, /* 20 */

	-ENXIO, /* 21 */

	-ENXIO, /* 22 */

	-ENXIO, /* 23 */

	-ENXIO, /* 24 */

	-ENXIO, /* 25 */

	-ENXIO, /* 26 */

	-ENXIO, /* 27 */

	IRQ_LPC32XX_GPI_28,

};



static int lpc32xx_gpio_to_irq_gpi_p3(struct gpio_chip *chip, unsigned offset)

{

	if (offset < ARRAY_SIZE(lpc32xx_gpio_to_irq_gpi_p3_table))

		return lpc32xx_gpio_to_irq_gpi_p3_table[offset];

	return -ENXIO;

}



static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = {

	{

		.chip = {
@@ -376,6 +437,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { 
			.direction_output	= lpc32xx_gpio_dir_output_p012,

			.set			= lpc32xx_gpio_set_value_p012,

			.request		= lpc32xx_gpio_request,

			.to_irq			= lpc32xx_gpio_to_irq_p01,

			.base			= LPC32XX_GPIO_P0_GRP,

			.ngpio			= LPC32XX_GPIO_P0_MAX,

			.names			= gpio_p0_names,
@@ -391,6 +453,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { 
			.direction_output	= lpc32xx_gpio_dir_output_p012,

			.set			= lpc32xx_gpio_set_value_p012,

			.request		= lpc32xx_gpio_request,

			.to_irq			= lpc32xx_gpio_to_irq_p01,

			.base			= LPC32XX_GPIO_P1_GRP,

			.ngpio			= LPC32XX_GPIO_P1_MAX,

			.names			= gpio_p1_names,
@@ -421,6 +484,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { 
			.direction_output	= lpc32xx_gpio_dir_output_p3,

			.set			= lpc32xx_gpio_set_value_p3,

			.request		= lpc32xx_gpio_request,

			.to_irq			= lpc32xx_gpio_to_irq_gpio_p3,

			.base			= LPC32XX_GPIO_P3_GRP,

			.ngpio			= LPC32XX_GPIO_P3_MAX,

			.names			= gpio_p3_names,
@@ -434,6 +498,7 @@ static struct lpc32xx_gpio_chip lpc32xx_gpiochip[] = { 
			.direction_input	= lpc32xx_gpio_dir_in_always,

			.get			= lpc32xx_gpi_get_value,

			.request		= lpc32xx_gpio_request,

			.to_irq			= lpc32xx_gpio_to_irq_gpi_p3,

			.base			= LPC32XX_GPI_P3_GRP,

			.ngpio			= LPC32XX_GPI_P3_MAX,

			.names			= gpi_p3_names,