[ARM] pxa/akita: use pca953x instead of akita-ioexp

Use generic pca953x which provides gpiolib interface instead of
akita-specific akita-ioexp with non-standard interface to pins.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 16 insertions, 21 deletions

diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 993a132ff978..1d8654d2fb96 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -24,6 +24,8 @@
 #include <linux/mmc/host.h>
 #include <linux/pm.h>
 #include <linux/backlight.h>
+#include <linux/i2c.h>
+#include <linux/i2c/pca953x.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 #include <linux/spi/corgi_lcd.h>
@@ -52,7 +54,6 @@
 #include <mach/udc.h>
 #include <mach/pxafb.h>
 #include <mach/pxa2xx_spi.h>
-#include <mach/akita.h>
 #include <mach/spitz.h>
 #include <mach/sharpsl.h>
 
@@ -313,16 +314,8 @@ static void spitz_notify_intensity(int intensity)
         }
 
         if (machine_is_akita()) {
-                /* Bit 5 is via IO-Expander */
-                if (intensity & 0x0020)
-                        akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
-                else
-                        akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_CONT);
-
-                if (intensity)
-                        akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
-                else
-                        akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_BACKLIGHT_ON);
+                gpio_set_value(AKITA_GPIO_BACKLIGHT_CONT, !(intensity & 0x20));
+                gpio_set_value(AKITA_GPIO_BACKLIGHT_ON, intensity);
                 return;
         }
 }
@@ -565,10 +558,7 @@ static void spitz_irda_transceiver_mode(struct device *dev, int mode)
 #ifdef CONFIG_MACH_AKITA
 static void akita_irda_transceiver_mode(struct device *dev, int mode)
 {
-        if (mode & IR_OFF)
-                akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
-        else
-                akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
+        gpio_set_value(AKITA_GPIO_IR_ON, mode & IR_OFF);
         pxa2xx_transceiver_mode(dev, mode);
 }
 #endif
@@ -679,12 +669,17 @@ static void __init spitz_init(void)
 /*
  * Akita IO Expander
  */
-struct platform_device akitaioexp_device = {
-        .name           = "akita-ioexp",
-        .id             = -1,
+static struct pca953x_platform_data akita_ioexp = {
+        .gpio_base              = AKITA_IOEXP_GPIO_BASE,
 };
 
-EXPORT_SYMBOL_GPL(akitaioexp_device);
+static struct i2c_board_info akita_i2c_board_info[] = {
+        {
+                .type           = "max7310",
+                .addr           = 0x18,
+                .platform_data  = &akita_ioexp,
+        },
+};
 
 static void __init akita_init(void)
 {
@@ -694,9 +689,9 @@ static void __init akita_init(void)
         spitz_pcmcia_config.num_devs = 1;
         platform_scoop_config = &spitz_pcmcia_config;
 
-        platform_device_register(&akitaioexp_device);
+        pxa_set_i2c_info(NULL);
+        i2c_register_board_info(0, ARRAY_AND_SIZE(akita_i2c_board_info));
 
-        spitzscoop_device.dev.parent = &akitaioexp_device.dev;
         common_init();
 }
 #endif