patches.kzm9g/0174-ARM-mach-shmobile-sh73a0-GPIO-IRQ-support.patch

From ce81dcdbb5efaf6b9e1662138e6ce62833cb584d Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Wed, 28 Sep 2011 16:55:45 +0900
Subject: ARM: mach-shmobile: sh73a0 GPIO IRQ support

This patch adds support for sh73a0 GPIO IRQs by making use
of the PFC GPIO IRQ feature. Only IRQ pins are  supported
at this time. In the future when PINT interrupts also are
supported properly we can easily extend the table with such
information. Also, the sh73a0 is currently making use of
the GIC for external interrupt which is rather unflexible
when it comes to triggering configuration at this point.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
(cherry picked from commit 13fc7e7c2cd08a884f76eeb940957160b296d5c3)

Signed-off-by: Simon Horman <horms@verge.net.au>
---
 arch/arm/mach-shmobile/pfc-sh73a0.c | 41 +++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm/mach-shmobile/pfc-sh73a0.c b/arch/arm/mach-shmobile/pfc-sh73a0.c
index 599016e..0e24ac4 100644
--- a/arch/arm/mach-shmobile/pfc-sh73a0.c
+++ b/arch/arm/mach-shmobile/pfc-sh73a0.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/gpio.h>
 #include <mach/sh73a0.h>
+#include <mach/irqs.h>
 
 #define CPU_ALL_PORT(fn, pfx, sfx)				\
 	PORT_10(fn, pfx,    sfx), PORT_10(fn, pfx##1, sfx),	\
@@ -2698,6 +2699,43 @@ static struct pinmux_data_reg pinmux_data_regs[] = {
 	{ },
 };
 
+#define EXT_IRQ(n) gic_spi((n) + 1) /* GIC SPI starting from 1 for IRQ0 */
+
+static struct pinmux_irq pinmux_irqs[] = {
+	PINMUX_IRQ(EXT_IRQ(19), PORT9_FN0),
+	PINMUX_IRQ(EXT_IRQ(1), PORT10_FN0),
+	PINMUX_IRQ(EXT_IRQ(0), PORT11_FN0),
+	PINMUX_IRQ(EXT_IRQ(18), PORT13_FN0),
+	PINMUX_IRQ(EXT_IRQ(20), PORT14_FN0),
+	PINMUX_IRQ(EXT_IRQ(21), PORT15_FN0),
+	PINMUX_IRQ(EXT_IRQ(31), PORT26_FN0),
+	PINMUX_IRQ(EXT_IRQ(30), PORT27_FN0),
+	PINMUX_IRQ(EXT_IRQ(29), PORT28_FN0),
+	PINMUX_IRQ(EXT_IRQ(22), PORT40_FN0),
+	PINMUX_IRQ(EXT_IRQ(23), PORT53_FN0),
+	PINMUX_IRQ(EXT_IRQ(10), PORT54_FN0),
+	PINMUX_IRQ(EXT_IRQ(9), PORT56_FN0),
+	PINMUX_IRQ(EXT_IRQ(26), PORT115_FN0),
+	PINMUX_IRQ(EXT_IRQ(27), PORT116_FN0),
+	PINMUX_IRQ(EXT_IRQ(28), PORT117_FN0),
+	PINMUX_IRQ(EXT_IRQ(24), PORT118_FN0),
+	PINMUX_IRQ(EXT_IRQ(6), PORT147_FN0),
+	PINMUX_IRQ(EXT_IRQ(2), PORT149_FN0),
+	PINMUX_IRQ(EXT_IRQ(7), PORT150_FN0),
+	PINMUX_IRQ(EXT_IRQ(12), PORT156_FN0),
+	PINMUX_IRQ(EXT_IRQ(4), PORT159_FN0),
+	PINMUX_IRQ(EXT_IRQ(25), PORT164_FN0),
+	PINMUX_IRQ(EXT_IRQ(8), PORT223_FN0),
+	PINMUX_IRQ(EXT_IRQ(3), PORT224_FN0),
+	PINMUX_IRQ(EXT_IRQ(5), PORT227_FN0),
+	PINMUX_IRQ(EXT_IRQ(17), PORT234_FN0),
+	PINMUX_IRQ(EXT_IRQ(11), PORT238_FN0),
+	PINMUX_IRQ(EXT_IRQ(13), PORT239_FN0),
+	PINMUX_IRQ(EXT_IRQ(16), PORT249_FN0),
+	PINMUX_IRQ(EXT_IRQ(14), PORT251_FN0),
+	PINMUX_IRQ(EXT_IRQ(9), PORT308_FN0),
+};
+
 static struct pinmux_info sh73a0_pinmux_info = {
 	.name = "sh73a0_pfc",
 	.reserved_id = PINMUX_RESERVED,
@@ -2718,6 +2756,9 @@ static struct pinmux_info sh73a0_pinmux_info = {
 
 	.gpio_data = pinmux_data,
 	.gpio_data_size = ARRAY_SIZE(pinmux_data),
+
+	.gpio_irq = pinmux_irqs,
+	.gpio_irq_size = ARRAY_SIZE(pinmux_irqs),
 };
 
 void sh73a0_pinmux_init(void)
-- 
1.7.10.2.565.gbd578b5