davinci: Make GPIO code more generic

The current gpio code needs to know the number of
gpio irqs there are and what the bank irq number is.
To determine those values, it checks the SoC type.

It also assumes that the base address and the number
of irqs the interrupt controller uses is fixed.

To clean up the SoC checks and make it support
different base addresses and interrupt controllers,
have the SoC-specific code set those values in
the soc_info structure and have the gpio code
reference them there.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 1b7c16c..757def7 100644 (file)
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -13,6 +13,7 @@
 #include <linux/clk.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
+#include <linux/gpio.h>
 
 #include <linux/spi/spi.h>
 
@@ -647,6 +648,9 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
        .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
        .timer_info             = &dm355_timer_info,
        .wdt_base               = IO_ADDRESS(DAVINCI_WDOG_BASE),
+       .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+       .gpio_num               = 104,
+       .gpio_irq               = IRQ_DM355_GPIOBNK0,
 };
 
 void __init dm355_init(void)

diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index c662692..cfd918e 100644 (file)
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 
@@ -590,6 +591,9 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
        .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
        .timer_info             = &dm644x_timer_info,
        .wdt_base               = IO_ADDRESS(DAVINCI_WDOG_BASE),
+       .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+       .gpio_num               = 71,
+       .gpio_irq               = IRQ_GPIOBNK0,
 };
 
 void __init dm644x_init(void)

diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 83d67cf..f980c2f 100644 (file)
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/gpio.h>
 
 #include <asm/mach/map.h>
 
@@ -569,6 +570,9 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
        .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
        .timer_info             = &dm646x_timer_info,
        .wdt_base               = IO_ADDRESS(DAVINCI_WDOG_BASE),
+       .gpio_base              = IO_ADDRESS(DAVINCI_GPIO_BASE),
+       .gpio_num               = 43, /* Only 33 usable */
+       .gpio_irq               = IRQ_DM646X_GPIOBNK0,
 };
 
 void __init dm646x_init(void)

diff --cc arch/arm/mach-davinci/gpio.c
Simple merge

diff --cc arch/arm/mach-davinci/include/mach/common.h
Simple merge

diff --cc arch/arm/mach-davinci/include/mach/gpio.h
Simple merge