diff options
Diffstat (limited to 'arch/arm/mach-pxa')
| -rw-r--r-- | arch/arm/mach-pxa/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/akita-ioexp.c | 222 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/akita.h | 32 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/spitz.h | 11 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/spitz.c | 37 |
5 files changed, 27 insertions, 276 deletions
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 56f216298bcb..fbedaaf74bd3 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -30,7 +30,6 @@ obj-$(CONFIG_MACH_TRIZEPS4) += trizeps4.o obj-$(CONFIG_MACH_COLIBRI) += colibri.o obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o sharpsl_pm.o corgi_pm.o obj-$(CONFIG_PXA_SHARP_Cxx00) += spitz.o sharpsl_pm.o spitz_pm.o -obj-$(CONFIG_MACH_AKITA) += akita-ioexp.o obj-$(CONFIG_MACH_POODLE) += poodle.o obj-$(CONFIG_MACH_PCM027) += pcm027.o obj-$(CONFIG_MACH_PCM990_BASEBOARD) += pcm990-baseboard.o diff --git a/arch/arm/mach-pxa/akita-ioexp.c b/arch/arm/mach-pxa/akita-ioexp.c deleted file mode 100644 index 5c67b188a3ba..000000000000 --- a/arch/arm/mach-pxa/akita-ioexp.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * 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); - diff --git a/arch/arm/mach-pxa/include/mach/akita.h b/arch/arm/mach-pxa/include/mach/akita.h deleted file mode 100644 index 5d8cc1d9cb10..000000000000 --- a/arch/arm/mach-pxa/include/mach/akita.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * 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); - diff --git a/arch/arm/mach-pxa/include/mach/spitz.h b/arch/arm/mach-pxa/include/mach/spitz.h index 3e28394333e7..31ac26b55bc1 100644 --- a/arch/arm/mach-pxa/include/mach/spitz.h +++ b/arch/arm/mach-pxa/include/mach/spitz.h @@ -151,6 +151,17 @@ #define SPITZ_GPIO_BACKLIGHT_ON (SPITZ_SCP2_GPIO_BASE + 7) #define SPITZ_GPIO_MIC_BIAS (SPITZ_SCP2_GPIO_BASE + 8) +/* Akita IO Expander GPIOs */ +#define AKITA_IOEXP_GPIO_BASE (NR_BUILTIN_GPIO + 12) +#define AKITA_GPIO_RESERVED_0 (AKITA_IOEXP_GPIO_BASE + 0) +#define AKITA_GPIO_RESERVED_1 (AKITA_IOEXP_GPIO_BASE + 1) +#define AKITA_GPIO_MIC_BIAS (AKITA_IOEXP_GPIO_BASE + 2) +#define AKITA_GPIO_BACKLIGHT_ON (AKITA_IOEXP_GPIO_BASE + 3) +#define AKITA_GPIO_BACKLIGHT_CONT (AKITA_IOEXP_GPIO_BASE + 4) +#define AKITA_GPIO_AKIN_PULLUP (AKITA_IOEXP_GPIO_BASE + 5) +#define AKITA_GPIO_IR_ON (AKITA_IOEXP_GPIO_BASE + 6) +#define AKITA_GPIO_RESERVED_7 (AKITA_IOEXP_GPIO_BASE + 7) + /* Spitz IRQ Definitions */ #define SPITZ_IRQ_GPIO_KEY_INT IRQ_GPIO(SPITZ_GPIO_KEY_INT) 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 |