+++ /dev/null
-/*
- * Support for the Extra GPIOs on the Sharp SL-C1000 (Akita)
- * (uses a Maxim MAX7310 8 Port IO Expander)
- *
- * Copyright 2005 Openedhand Ltd.
- *
- * Author: Richard Purdie <richard@openedhand.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-#include <mach/akita.h>
-
-/* MAX7310 Regiser Map */
-#define MAX7310_INPUT 0x00
-#define MAX7310_OUTPUT 0x01
-#define MAX7310_POLINV 0x02
-#define MAX7310_IODIR 0x03 /* 1 = Input, 0 = Output */
-#define MAX7310_TIMEOUT 0x04
-
-/* Addresses to scan */
-static const unsigned short normal_i2c[] = { 0x18, I2C_CLIENT_END };
-
-/* I2C Magic */
-I2C_CLIENT_INSMOD;
-
-static int max7310_write(struct i2c_client *client, int address, int data);
-static struct i2c_client max7310_template;
-static void akita_ioexp_work(struct work_struct *private_);
-
-static struct device *akita_ioexp_device;
-static unsigned char ioexp_output_value = AKITA_IOEXP_IO_OUT;
-DECLARE_WORK(akita_ioexp, akita_ioexp_work);
-
-
-/*
- * MAX7310 Access
- */
-static int max7310_config(struct device *dev, int iomode, int polarity)
-{
- int ret;
- struct i2c_client *client = to_i2c_client(dev);
-
- ret = max7310_write(client, MAX7310_POLINV, polarity);
- if (ret < 0)
- return ret;
- ret = max7310_write(client, MAX7310_IODIR, iomode);
- return ret;
-}
-
-static int max7310_set_ouputs(struct device *dev, int outputs)
-{
- struct i2c_client *client = to_i2c_client(dev);
-
- return max7310_write(client, MAX7310_OUTPUT, outputs);
-}
-
-/*
- * I2C Functions
- */
-static int max7310_write(struct i2c_client *client, int address, int value)
-{
- u8 data[2];
-
- data[0] = address & 0xff;
- data[1] = value & 0xff;
-
- if (i2c_master_send(client, data, 2) == 2)
- return 0;
- return -1;
-}
-
-static int max7310_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *new_client;
- int err;
-
- if (!(new_client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
- return -ENOMEM;
-
- max7310_template.adapter = adapter;
- max7310_template.addr = address;
-
- memcpy(new_client, &max7310_template, sizeof(struct i2c_client));
-
- if ((err = i2c_attach_client(new_client))) {
- kfree(new_client);
- return err;
- }
-
- max7310_config(&new_client->dev, AKITA_IOEXP_IO_DIR, 0);
- akita_ioexp_device = &new_client->dev;
- schedule_work(&akita_ioexp);
-
- return 0;
-}
-
-static int max7310_attach_adapter(struct i2c_adapter *adapter)
-{
- return i2c_probe(adapter, &addr_data, max7310_detect);
-}
-
-static int max7310_detach_client(struct i2c_client *client)
-{
- int err;
-
- akita_ioexp_device = NULL;
-
- if ((err = i2c_detach_client(client)))
- return err;
-
- kfree(client);
- return 0;
-}
-
-static struct i2c_driver max7310_i2c_driver = {
- .driver = {
- .name = "akita-max7310",
- },
- .id = I2C_DRIVERID_AKITAIOEXP,
- .attach_adapter = max7310_attach_adapter,
- .detach_client = max7310_detach_client,
-};
-
-static struct i2c_client max7310_template = {
- name: "akita-max7310",
- driver: &max7310_i2c_driver,
-};
-
-void akita_set_ioexp(struct device *dev, unsigned char bit)
-{
- ioexp_output_value |= bit;
-
- if (akita_ioexp_device)
- schedule_work(&akita_ioexp);
- return;
-}
-
-void akita_reset_ioexp(struct device *dev, unsigned char bit)
-{
- ioexp_output_value &= ~bit;
-
- if (akita_ioexp_device)
- schedule_work(&akita_ioexp);
- return;
-}
-
-EXPORT_SYMBOL(akita_set_ioexp);
-EXPORT_SYMBOL(akita_reset_ioexp);
-
-static void akita_ioexp_work(struct work_struct *private_)
-{
- if (akita_ioexp_device)
- max7310_set_ouputs(akita_ioexp_device, ioexp_output_value);
-}
-
-
-#ifdef CONFIG_PM
-static int akita_ioexp_suspend(struct platform_device *pdev, pm_message_t state)
-{
- flush_scheduled_work();
- return 0;
-}
-
-static int akita_ioexp_resume(struct platform_device *pdev)
-{
- schedule_work(&akita_ioexp);
- return 0;
-}
-#else
-#define akita_ioexp_suspend NULL
-#define akita_ioexp_resume NULL
-#endif
-
-static int __init akita_ioexp_probe(struct platform_device *pdev)
-{
- return i2c_add_driver(&max7310_i2c_driver);
-}
-
-static int akita_ioexp_remove(struct platform_device *pdev)
-{
- i2c_del_driver(&max7310_i2c_driver);
- return 0;
-}
-
-static struct platform_driver akita_ioexp_driver = {
- .probe = akita_ioexp_probe,
- .remove = akita_ioexp_remove,
- .suspend = akita_ioexp_suspend,
- .resume = akita_ioexp_resume,
- .driver = {
- .name = "akita-ioexp",
- },
-};
-
-static int __init akita_ioexp_init(void)
-{
- return platform_driver_register(&akita_ioexp_driver);
-}
-
-static void __exit akita_ioexp_exit(void)
-{
- platform_driver_unregister(&akita_ioexp_driver);
-}
-
-MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
-MODULE_DESCRIPTION("Akita IO-Expander driver");
-MODULE_LICENSE("GPL");
-
-fs_initcall(akita_ioexp_init);
-module_exit(akita_ioexp_exit);
-
+++ /dev/null
-/*
- * Hardware specific definitions for SL-C1000 (Akita)
- *
- * Copyright (c) 2005 Richard Purdie
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-/* Akita IO Expander GPIOs */
-
-#define AKITA_IOEXP_RESERVED_7 (1 << 7)
-#define AKITA_IOEXP_IR_ON (1 << 6)
-#define AKITA_IOEXP_AKIN_PULLUP (1 << 5)
-#define AKITA_IOEXP_BACKLIGHT_CONT (1 << 4)
-#define AKITA_IOEXP_BACKLIGHT_ON (1 << 3)
-#define AKITA_IOEXP_MIC_BIAS (1 << 2)
-#define AKITA_IOEXP_RESERVED_1 (1 << 1)
-#define AKITA_IOEXP_RESERVED_0 (1 << 0)
-
-/* Direction Bitfield 0=output 1=input */
-#define AKITA_IOEXP_IO_DIR 0
-/* Default Values */
-#define AKITA_IOEXP_IO_OUT (AKITA_IOEXP_IR_ON | AKITA_IOEXP_AKIN_PULLUP)
-
-extern struct platform_device akitaioexp_device;
-
-void akita_set_ioexp(struct device *dev, unsigned char bitmask);
-void akita_reset_ioexp(struct device *dev, unsigned char bitmask);
-
#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>
#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>
}
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;
}
}
#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
/*
* 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)
{
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
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff