diff options
Diffstat (limited to 'target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c')
| -rw-r--r-- | target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c | 824 |
1 files changed, 0 insertions, 824 deletions
diff --git a/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c b/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c deleted file mode 100644 index d4ef138676..0000000000 --- a/target/linux/olpc/files-2.6.23/drivers/video/olpc_dcon.c +++ /dev/null @@ -1,824 +0,0 @@ -/* - * Mainly by David Woodhouse, somewhat modified by Jordan Crouse - * - * Copyright © 2006-2007 Red Hat, Inc. - * Copyright © 2006-2007 Advanced Micro Devices, Inc. - * - * This program is free software. You can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - */ - - -#include <linux/kernel.h> -#include <linux/fb.h> -#include <linux/i2c.h> -#include <linux/platform_device.h> -#include <linux/i2c-id.h> -#include <linux/pci.h> -#include <linux/vt_kern.h> -#include <linux/pci_ids.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/backlight.h> -#include <linux/device.h> -#include <asm/uaccess.h> -#include <linux/ctype.h> -#include <linux/reboot.h> -#include <asm/tsc.h> -#include <asm/olpc.h> - -#include "olpc_dcon.h" - -/* Module definitions */ - -static int resumeline = 898; -module_param(resumeline, int, 0444); - -static int noinit; -module_param(noinit, int, 0444); - -/* Default off since it doesn't work on DCON ASIC in B-test OLPC board */ -static int useaa = 1; -module_param(useaa, int, 0444); - -/* I2C structures */ - -static struct i2c_driver dcon_driver; -static struct i2c_client *dcon_client; - -/* Platform devices */ -static struct platform_device *dcon_device; - -/* Backlight device */ -static struct backlight_device *dcon_bl_dev; - -/* Base address of the GPIO registers */ -static unsigned long gpio_base; - -static struct fb_info *fbinfo; - -/* Current source, initialized at probe time */ -static int dcon_source; - -/* Desired source */ -static int dcon_pending; - -/* Current output type */ -static int dcon_output = DCON_OUTPUT_COLOR; - -/* Current sleep status (not yet implemented) */ -static int dcon_sleep_val = DCON_ACTIVE; - -/* Shadow register for the DCON_REG_MODE register */ -static unsigned short dcon_disp_mode; - -/* Variables used during switches */ -static int dcon_switched; - -static DECLARE_WAIT_QUEUE_HEAD(dcon_wait_queue); - -static unsigned short normal_i2c[] = { 0x0D, I2C_CLIENT_END }; -I2C_CLIENT_INSMOD; - -#define dcon_write(reg,val) i2c_smbus_write_word_data(dcon_client,reg,val) -#define dcon_read(reg) i2c_smbus_read_word_data(dcon_client,reg) - -/* The current backlight value - this saves us some smbus traffic */ -static int bl_val = -1; - -/* ===== API functions - these are called by a variety of users ==== */ - -/* Backlight notes - turning off the backlight enable bit in the DCON - * doesn't save us any power over just pushing the BL to zero, so we - * don't use that bit in this code. - */ - -static int dcon_get_backlight(void) -{ - if (dcon_client == NULL) - return 0; - - if (bl_val == -1) - bl_val = dcon_read(DCON_REG_BRIGHT) & 0x0F; - - return bl_val; -} - -static void dcon_set_backlight(int level) -{ - if (dcon_client == NULL) - return; - - if (bl_val == (level & 0x0F)) - return; - - bl_val = level & 0x0F; - dcon_write(DCON_REG_BRIGHT, bl_val); - - /* Purposely turn off the backlight when we go to level 0 */ - - if (bl_val == 0) { - dcon_disp_mode &= ~MODE_BL_ENABLE; - dcon_write(DCON_REG_MODE, dcon_disp_mode); - } - else if (!(dcon_disp_mode & MODE_BL_ENABLE)) { - dcon_disp_mode |= MODE_BL_ENABLE; - dcon_write(DCON_REG_MODE, dcon_disp_mode); - } -} - -/* Set the output type to either color or mono */ - -static int dcon_set_output(int arg) -{ - if (dcon_output == arg) - return 0; - - dcon_output = arg; - - if (arg == DCON_OUTPUT_MONO) { - dcon_disp_mode &= ~(MODE_CSWIZZLE | MODE_COL_AA); - dcon_disp_mode |= MODE_MONO_LUMA; - } - else { - dcon_disp_mode &= ~(MODE_MONO_LUMA); - dcon_disp_mode |= MODE_CSWIZZLE; - if (useaa) - dcon_disp_mode |= MODE_COL_AA; - } - - dcon_write(DCON_REG_MODE, dcon_disp_mode); - return 0; -} - -/* For now, this will be really stupid - we need to address how - * DCONLOAD works in a sleep and account for it accordingly - */ - -static void dcon_sleep(int state) -{ - /* Turn off the backlight and put the DCON to sleep */ - - if (state == dcon_sleep_val) - return; - - if (state == DCON_SLEEP) { - dcon_disp_mode &= ~MODE_BL_ENABLE; - dcon_disp_mode |= MODE_SLEEP; - } - else { - /* Only re-enable the backlight if the backlight value is set */ - - if (bl_val != 0) - dcon_disp_mode |= MODE_BL_ENABLE; - - dcon_disp_mode &= ~MODE_SLEEP; - } - - dcon_sleep_val = state; - dcon_write(DCON_REG_MODE, dcon_disp_mode); - - /* We should turn off some stuff in the framebuffer - but what? */ -} - -/* Set the source of the display (CPU or DCON) */ - -static void dcon_source_switch(struct work_struct *work) -{ - DECLARE_WAITQUEUE(wait, current); - int source = dcon_pending; - - if (dcon_source == source) - return; - - dcon_switched = 0; - - switch (source) { - case DCON_SOURCE_CPU: - - /* Enable the scanline interrupt bit */ - if (dcon_write(DCON_REG_MODE, dcon_disp_mode | MODE_SCAN_INT)) - printk(KERN_ERR "olpc-dcon: couldn't enable scanline interrupt!\n"); - else { - /* Wait up to one second for the scanline interrupt */ - wait_event_timeout(dcon_wait_queue, dcon_switched == 1, HZ); - } - - if (!dcon_switched) - printk(KERN_ERR "olpc-dcon: Timeout entering CPU mode; expect a screen glitch.\n"); - - /* - * Ideally we'd like to disable interrupts here so that the - * fb_powerup and DCON turn on happen at a known time value; - * however, we can't do that right now with fb_set_suspend - * messing with semaphores. - * - * For now, we just hope.. - */ - if (fb_powerup(fbinfo)) { - printk(KERN_ERR "olpc-dcon: Failed to enter CPU mode\n"); - dcon_pending = DCON_SOURCE_DCON; - return; - } - - /* And turn off the DCON */ - outl(1<<11, gpio_base + GPIOx_OUT_VAL); - - /* Turn off the scanline interrupt */ - if (dcon_write(DCON_REG_MODE, dcon_disp_mode)) - printk(KERN_ERR "olpc-dcon: couldn't disable scanline interrupt!\n"); - - printk(KERN_INFO "olpc-dcon: The CPU has control\n"); - break; - case DCON_SOURCE_DCON: - { - int t; - - add_wait_queue(&dcon_wait_queue, &wait); - set_current_state(TASK_UNINTERRUPTIBLE); - - /* Clear GPIO11 (DCONLOAD) - this implies that the DCON is in - control */ - - outl(1 << (11 + 16), gpio_base + GPIOx_OUT_VAL); - - t = schedule_timeout(HZ/2); - remove_wait_queue(&dcon_wait_queue, &wait); - set_current_state(TASK_RUNNING); - - if (!dcon_switched) - printk(KERN_ERR "olpc-dcon: Timeout entering DCON mode; expect a screen glitch.\n"); - - /* Turn off the graphics engine completely */ - fb_powerdown(fbinfo); - - printk(KERN_INFO "olpc-dcon: The DCON has control\n"); - break; - } - default: - BUG(); - } - - dcon_source = source; -} - -static DECLARE_WORK(dcon_work, dcon_source_switch); - -static int dcon_set_source(int arg) -{ - if (arg != DCON_SOURCE_CPU && arg != DCON_SOURCE_DCON) - return -EINVAL; - - if (dcon_pending == arg) - return 0; - - dcon_pending = arg; - if ((dcon_source != arg) && !work_pending(&dcon_work)) - schedule_work(&dcon_work); - - return 0; -} - -static int dcon_set_source_sync(int arg) -{ - int ret = dcon_set_source(arg); - if (!ret) - flush_scheduled_work(); - return ret; -} - -static int dconbl_set(struct backlight_device *dev) { - - int level = dev->props.brightness; - - if (dev->props.power != FB_BLANK_UNBLANK) - level = 0; - - dcon_set_backlight(level); - return 0; -} - -static int dconbl_get(struct backlight_device *dev) { - return dcon_get_backlight(); -} - -static ssize_t dcon_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%4.4X\n", dcon_disp_mode); -} - -static ssize_t dcon_sleep_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", dcon_sleep_val); -} - -static ssize_t /* __deprecated */ dcon_source_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - printk(KERN_WARNING "olpc-dcon: using deprecated sysfs 'source' interface; use 'freeze' instead!\n"); - return sprintf(buf, "%d\n", dcon_source); -} - -static ssize_t dcon_freeze_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", dcon_source == DCON_SOURCE_DCON ? 1 : 0); -} - -static ssize_t dcon_output_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", dcon_output); -} - -static ssize_t dcon_resumeline_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", resumeline); -} - -static int _strtoul(const char *buf, int len, unsigned int *val) -{ - - char *endp; - unsigned int output = simple_strtoul(buf, &endp, 0); - int size = endp - buf; - - if (*endp && isspace(*endp)) - size++; - - if (size != len) - return -EINVAL; - - *val = output; - return 0; -} - -static ssize_t dcon_output_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - int rc = -EINVAL; - - if (_strtoul(buf, count, &output)) - return -EINVAL; - - if (output == DCON_OUTPUT_COLOR || output == DCON_OUTPUT_MONO) { - dcon_set_output(output); - rc = count; - } - - return rc; -} - -static ssize_t /* __deprecated */ dcon_source_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - int rc = -EINVAL; - - printk(KERN_WARNING "olpc-dcon: using deprecated sysfs 'source' interface; use 'freeze' instead!\n"); - if (_strtoul(buf, count, &output)) - return -EINVAL; - - dcon_set_source(output); - rc = count; - - return rc; -} - -static ssize_t dcon_freeze_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - int rc = -EINVAL; - - if (_strtoul(buf, count, &output)) - return rc; - - dcon_set_source(output ? DCON_SOURCE_DCON : DCON_SOURCE_CPU); - rc = count; - - return rc; -} - -static ssize_t dcon_resumeline_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int rl; - int rc = -EINVAL; - - if (_strtoul(buf, count, &rl)) - return rc; - - resumeline = rl; - dcon_write(DCON_REG_SCAN_INT, resumeline); - rc = count; - - return rc; -} - -static ssize_t dcon_sleep_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) -{ - int output; - - if (_strtoul(buf, count, &output)) - return -EINVAL; - - dcon_sleep(output ? DCON_SLEEP : DCON_ACTIVE); - return count; -} - -static struct device_attribute dcon_device_files[] = { - __ATTR(mode, 0444, dcon_mode_show, NULL), - __ATTR(sleep, 0644, dcon_sleep_show, dcon_sleep_store), - __ATTR(source, 0644, dcon_source_show, dcon_source_store), - __ATTR(freeze, 0644, dcon_freeze_show, dcon_freeze_store), - __ATTR(output, 0644, dcon_output_show, dcon_output_store), - __ATTR(resumeline, 0644, dcon_resumeline_show, dcon_resumeline_store), -}; - -static struct backlight_ops dcon_bl_ops = { - .get_brightness = dconbl_get, - .update_status = dconbl_set -}; - -/* List of GPIOs that we care about: - (in) GPIO12 -- DCONBLNK - (in) GPIO[56] -- DCONSTAT[01] - (out) GPIO11 -- DCONLOAD -*/ - -#define IN_GPIOS ((1<<5) | (1<<6) | (1<<7) | (1<<12)) -#define OUT_GPIOS (1<<11) - -static irqreturn_t dcon_interrupt(int, void *); - -static int dcon_request_irq(void) -{ - unsigned long lo, hi; - unsigned char lob; - - rdmsr(MSR_LBAR_GPIO, lo, hi); - - /* Check the mask and whether GPIO is enabled (sanity check) */ - if (hi != 0x0000f001) { - printk(KERN_ERR "GPIO not enabled -- cannot use DCON\n"); - return -ENODEV; - } - - /* Mask off the IO base address */ - gpio_base = lo & 0x0000ff00; - - /* Turn off the event enable for GPIO7 just to be safe */ - outl(1 << (16+7), gpio_base + GPIOx_EVNT_EN); - - /* Set the directions for the GPIO pins */ - outl(OUT_GPIOS | (IN_GPIOS << 16), gpio_base + GPIOx_OUT_EN); - outl(IN_GPIOS | (OUT_GPIOS << 16), gpio_base + GPIOx_IN_EN); - - /* Set up the interrupt mappings */ - - /* Set the IRQ to pair 2 */ - geode_gpio_event_irq(OLPC_GPIO_DCON_IRQ, 2); - - /* Enable group 2 to trigger the DCON interrupt */ - geode_gpio_set_irq(2, DCON_IRQ); - - /* Select edge level for interrupt (in PIC) */ - - lob = inb(0x4d0); - lob &= ~(1 << DCON_IRQ); - outb(lob, 0x4d0); - - /* Register the interupt handler */ - if (request_irq(DCON_IRQ, &dcon_interrupt, 0, "DCON", &dcon_driver)) - return -EIO; - - /* Clear INV_EN for GPIO7 (DCONIRQ) */ - outl((1<<(16+7)), gpio_base + GPIOx_INV_EN); - - /* Enable filter for GPIO12 (DCONBLANK) */ - outl(1<<(12), gpio_base + GPIOx_IN_FLTR_EN); - - /* Disable filter for GPIO7 */ - outl(1<<(16+7), gpio_base + GPIOx_IN_FLTR_EN); - - /* Disable event counter for GPIO7 (DCONIRQ) and GPIO12 (DCONBLANK) */ - - outl(1<<(16+7), gpio_base + GPIOx_EVNTCNT_EN); - outl(1<<(16+12), gpio_base + GPIOx_EVNTCNT_EN); - - /* Add GPIO12 to the Filter Event Pair #7 */ - outb(12, gpio_base + GPIO_FE7_SEL); - - /* Turn off negative Edge Enable for GPIO12 */ - outl(1<<(16+12), gpio_base + GPIOx_NEGEDGE_EN); - - /* Enable negative Edge Enable for GPIO7 */ - outl(1<<7, gpio_base + GPIOx_NEGEDGE_EN); - - /* Zero the filter amount for Filter Event Pair #7 */ - outw(0, gpio_base + GPIO_FLT7_AMNT); - - /* Clear the negative edge status for GPIO7 and GPIO12 */ - outl((1<<7) | (1<<12), gpio_base+0x4c); - - /* FIXME: Clear the posiitive status as well, just to be sure */ - outl((1<<7) | (1<<12), gpio_base+0x48); - - /* Enable events for GPIO7 (DCONIRQ) and GPIO12 (DCONBLANK) */ - outl((1<<(7))|(1<<12), gpio_base + GPIOx_EVNT_EN); - - /* Determine the current state by reading the GPIO bit */ - /* Earlier stages of the boot process have established the state */ - dcon_source = inl(gpio_base + GPIOx_OUT_VAL) & (1<<11) - ? DCON_SOURCE_CPU - : DCON_SOURCE_DCON; - dcon_pending = dcon_source; - - return 0; -} - -static int dcon_reboot_notify(struct notifier_block *nb, unsigned long foo, void *bar) -{ - if (dcon_client == NULL) - return 0; - - /* Turn off the DCON. Entirely. */ - dcon_write(DCON_REG_MODE, 0x39); - dcon_write(DCON_REG_MODE, 0x32); - return 0; -} - -static int dcon_conswitch_notify(struct notifier_block *nb, - unsigned long mode, void *dummy) -{ - if (mode == CONSOLE_EVENT_SWITCH_TEXT) - dcon_sleep(DCON_ACTIVE); - - return 0; -} - -static struct notifier_block dcon_nb = { - .notifier_call = dcon_reboot_notify, - .priority = -1, -}; - -static struct notifier_block dcon_console_nb = { - .notifier_call = dcon_conswitch_notify, - .priority = -1, -}; - -static int dcon_probe(struct i2c_adapter *adap, int addr, int kind) -{ - struct i2c_client *client; - uint16_t ver; - int rc, i; - - if (!olpc_has_dcon()) { - printk("olpc-dcon: No DCON is attached.\n"); - return -ENODEV; - } - - if (num_registered_fb >= 1) - fbinfo = registered_fb[0]; - - if (adap->id != I2C_HW_SMBUS_SCX200) { - printk(KERN_ERR "olpc-dcon: Invalid I2C bus (%d not %d)\n", - adap->id, I2C_HW_SMBUS_SCX200); - return -ENXIO; - } - - client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (client == NULL) - return -ENOMEM; - - strncpy(client->name, "OLPC-DCON", I2C_NAME_SIZE); - client->addr = addr; - client->adapter = adap; - client->driver = &dcon_driver; - - if ((rc = i2c_attach_client(client)) != 0) { - printk(KERN_ERR "olpc-dcon: Unable to attach the I2C client.\n"); - goto eclient; - } - - ver = i2c_smbus_read_word_data(client, DCON_REG_ID); - - if ((ver >> 8) != 0xDC) { - printk(KERN_ERR "olpc-dcon: DCON ID not 0xDCxx: 0x%04x instead.\n", ver); - rc = -ENXIO; - goto ei2c; - } - - if ((rc = dcon_request_irq())) { - printk(KERN_ERR "olpc-dcon: Unable to grab IRQ.\n"); - goto ei2c; - } - - if (ver < 0xdc02 && !noinit) { - /* Initialize the DCON registers */ - - /* Start with work-arounds for DCON ASIC */ - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x4b, 0x00cc); - i2c_smbus_write_word_data(client, 0x0b, 0x007a); - i2c_smbus_write_word_data(client, 0x36, 0x025c); - i2c_smbus_write_word_data(client, 0x37, 0x025e); - - /* Initialise SDRAM */ - - i2c_smbus_write_word_data(client, 0x3b, 0x002b); - i2c_smbus_write_word_data(client, 0x41, 0x0101); - i2c_smbus_write_word_data(client, 0x42, 0x0101); - } - - /* Colour swizzle, AA, no passthrough, backlight */ - - dcon_disp_mode = MODE_PASSTHRU | MODE_BL_ENABLE | MODE_CSWIZZLE; - if (useaa) - dcon_disp_mode |= MODE_COL_AA; - i2c_smbus_write_word_data(client, DCON_REG_MODE, dcon_disp_mode); - - - /* Set the scanline to interrupt on during resume */ - - i2c_smbus_write_word_data(client, DCON_REG_SCAN_INT, resumeline); - - /* Add the DCON device */ - - dcon_device = platform_device_alloc("dcon", -1); - - if (dcon_device == NULL) { - printk(KERN_ERR "dcon: Unable to create the DCON device\n"); - rc = -ENOMEM; - goto eirq; - } - - if ((rc = platform_device_add(dcon_device))) { - printk(KERN_ERR "dcon: Unable to add the DCON device\n"); - goto edev; - } - - for(i = 0; i < ARRAY_SIZE(dcon_device_files); i++) - device_create_file(&dcon_device->dev, &dcon_device_files[i]); - - /* Add the backlight device for the DCON */ - - dcon_client = client; - - dcon_bl_dev = backlight_device_register("dcon-bl", &dcon_device->dev, - NULL, &dcon_bl_ops); - - if (IS_ERR(dcon_bl_dev)) { - printk(KERN_INFO "Could not register the backlight device for the DCON (%ld)\n", PTR_ERR(dcon_bl_dev)); - dcon_bl_dev = NULL; - } - else { - dcon_bl_dev->props.max_brightness = 15; - dcon_bl_dev->props.power = FB_BLANK_UNBLANK; - dcon_bl_dev->props.brightness = dcon_get_backlight(); - - backlight_update_status(dcon_bl_dev); - } - - register_reboot_notifier(&dcon_nb); - console_event_register(&dcon_console_nb); - - printk(KERN_INFO "olpc-dcon: Discovered DCON version %x\n", ver & 0xFF); - - return 0; - - edev: - platform_device_unregister(dcon_device); - dcon_device = NULL; - eirq: - free_irq(DCON_IRQ, &dcon_driver); - ei2c: - i2c_detach_client(client); - eclient: - kfree(client); - - return rc; -} - -static int dcon_attach(struct i2c_adapter *adap) -{ - int ret; - - ret = i2c_probe(adap, &addr_data, dcon_probe); - - if (dcon_client == NULL) - printk(KERN_ERR "olpc-dcon: No DCON found on SMBus\n"); - - return ret; -} - -static int dcon_detach(struct i2c_client *client) -{ - int rc; - dcon_client = NULL; - - unregister_reboot_notifier(&dcon_nb); - console_event_unregister(&dcon_console_nb); - - free_irq(DCON_IRQ, &dcon_driver); - - if ((rc = i2c_detach_client(client)) == 0) - kfree(i2c_get_clientdata(client)); - - if (dcon_bl_dev != NULL) - backlight_device_unregister(dcon_bl_dev); - - if (dcon_device != NULL) - platform_device_unregister(dcon_device); - cancel_work_sync(&dcon_work); - - return rc; -} - - -#ifdef CONFIG_PM -static int dcon_suspend(struct i2c_client *client, pm_message_t state) -{ - if (dcon_sleep_val != DCON_ACTIVE) - return 0; - - /* Set up the DCON to have the source */ - return dcon_set_source_sync(DCON_SOURCE_DCON); -} - -static int dcon_resume(struct i2c_client *client) -{ - int x; - if (dcon_sleep_val != DCON_ACTIVE) - return 0; - - /* HACK: ensure the bus is stable */ - do { - x = dcon_read(DCON_REG_ID); - } while (x < 0); - - return dcon_set_source(DCON_SOURCE_CPU); -} - -#endif - -static irqreturn_t dcon_interrupt(int irq, void *id) -{ - int status = inl(gpio_base + GPIOx_READ_BACK) >> 5; - - /* Clear the negative edge status for GPIO7 */ - outl(1 << 7, gpio_base + GPIOx_NEGEDGE_STS); - - switch (status & 3) { - case 3: - printk(KERN_DEBUG "olpc-dcon: DCONLOAD_MISSED interrupt\n"); - break; - case 2: /* switch to DCON mode */ - case 1: /* switch to CPU mode */ - dcon_switched = 1; - wake_up(&dcon_wait_queue); - break; - case 0: - printk(KERN_DEBUG "olpc-dcon: scanline interrupt w/CPU\n"); - } - - return IRQ_HANDLED; -} - -static struct i2c_driver dcon_driver = { - .driver = { - .name = "OLPC-DCON", - }, - .id = I2C_DRIVERID_DCON, - .attach_adapter = dcon_attach, - .detach_client = dcon_detach, -#ifdef CONFIG_PM - .suspend = dcon_suspend, - .resume = dcon_resume, -#endif -}; - - -static int __init olpc_dcon_init(void) -{ - i2c_add_driver(&dcon_driver); - return 0; -} - -static void __exit olpc_dcon_exit(void) -{ - i2c_del_driver(&dcon_driver); -} - -module_init(olpc_dcon_init); -module_exit(olpc_dcon_exit); - -MODULE_LICENSE("GPL"); |