diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/video/backlight/lms283gf05.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/video/backlight/lms283gf05.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/ANDROID_3.4.5/drivers/video/backlight/lms283gf05.c b/ANDROID_3.4.5/drivers/video/backlight/lms283gf05.c deleted file mode 100644 index 4161f9e3..00000000 --- a/ANDROID_3.4.5/drivers/video/backlight/lms283gf05.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - * lms283gf05.c -- support for Samsung LMS283GF05 LCD - * - * Copyright (c) 2009 Marek Vasut <marek.vasut@gmail.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/device.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/lcd.h> - -#include <linux/spi/spi.h> -#include <linux/spi/lms283gf05.h> -#include <linux/module.h> - -struct lms283gf05_state { - struct spi_device *spi; - struct lcd_device *ld; -}; - -struct lms283gf05_seq { - unsigned char reg; - unsigned short value; - unsigned char delay; -}; - -/* Magic sequences supplied by manufacturer, for details refer to datasheet */ -static struct lms283gf05_seq disp_initseq[] = { - /* REG, VALUE, DELAY */ - { 0x07, 0x0000, 0 }, - { 0x13, 0x0000, 10 }, - - { 0x11, 0x3004, 0 }, - { 0x14, 0x200F, 0 }, - { 0x10, 0x1a20, 0 }, - { 0x13, 0x0040, 50 }, - - { 0x13, 0x0060, 0 }, - { 0x13, 0x0070, 200 }, - - { 0x01, 0x0127, 0 }, - { 0x02, 0x0700, 0 }, - { 0x03, 0x1030, 0 }, - { 0x08, 0x0208, 0 }, - { 0x0B, 0x0620, 0 }, - { 0x0C, 0x0110, 0 }, - { 0x30, 0x0120, 0 }, - { 0x31, 0x0127, 0 }, - { 0x32, 0x0000, 0 }, - { 0x33, 0x0503, 0 }, - { 0x34, 0x0727, 0 }, - { 0x35, 0x0124, 0 }, - { 0x36, 0x0706, 0 }, - { 0x37, 0x0701, 0 }, - { 0x38, 0x0F00, 0 }, - { 0x39, 0x0F00, 0 }, - { 0x40, 0x0000, 0 }, - { 0x41, 0x0000, 0 }, - { 0x42, 0x013f, 0 }, - { 0x43, 0x0000, 0 }, - { 0x44, 0x013f, 0 }, - { 0x45, 0x0000, 0 }, - { 0x46, 0xef00, 0 }, - { 0x47, 0x013f, 0 }, - { 0x48, 0x0000, 0 }, - { 0x07, 0x0015, 30 }, - - { 0x07, 0x0017, 0 }, - - { 0x20, 0x0000, 0 }, - { 0x21, 0x0000, 0 }, - { 0x22, 0x0000, 0 } -}; - -static struct lms283gf05_seq disp_pdwnseq[] = { - { 0x07, 0x0016, 30 }, - - { 0x07, 0x0004, 0 }, - { 0x10, 0x0220, 20 }, - - { 0x13, 0x0060, 50 }, - - { 0x13, 0x0040, 50 }, - - { 0x13, 0x0000, 0 }, - { 0x10, 0x0000, 0 } -}; - - -static void lms283gf05_reset(unsigned long gpio, bool inverted) -{ - gpio_set_value(gpio, !inverted); - mdelay(100); - gpio_set_value(gpio, inverted); - mdelay(20); - gpio_set_value(gpio, !inverted); - mdelay(20); -} - -static void lms283gf05_toggle(struct spi_device *spi, - struct lms283gf05_seq *seq, int sz) -{ - char buf[3]; - int i; - - for (i = 0; i < sz; i++) { - buf[0] = 0x74; - buf[1] = 0x00; - buf[2] = seq[i].reg; - spi_write(spi, buf, 3); - - buf[0] = 0x76; - buf[1] = seq[i].value >> 8; - buf[2] = seq[i].value & 0xff; - spi_write(spi, buf, 3); - - mdelay(seq[i].delay); - } -} - -static int lms283gf05_power_set(struct lcd_device *ld, int power) -{ - struct lms283gf05_state *st = lcd_get_data(ld); - struct spi_device *spi = st->spi; - struct lms283gf05_pdata *pdata = spi->dev.platform_data; - - if (power <= FB_BLANK_NORMAL) { - if (pdata) - lms283gf05_reset(pdata->reset_gpio, - pdata->reset_inverted); - lms283gf05_toggle(spi, disp_initseq, ARRAY_SIZE(disp_initseq)); - } else { - lms283gf05_toggle(spi, disp_pdwnseq, ARRAY_SIZE(disp_pdwnseq)); - if (pdata) - gpio_set_value(pdata->reset_gpio, - pdata->reset_inverted); - } - - return 0; -} - -static struct lcd_ops lms_ops = { - .set_power = lms283gf05_power_set, - .get_power = NULL, -}; - -static int __devinit lms283gf05_probe(struct spi_device *spi) -{ - struct lms283gf05_state *st; - struct lms283gf05_pdata *pdata = spi->dev.platform_data; - struct lcd_device *ld; - int ret = 0; - - if (pdata != NULL) { - ret = gpio_request(pdata->reset_gpio, "LMS285GF05 RESET"); - if (ret) - return ret; - - ret = gpio_direction_output(pdata->reset_gpio, - !pdata->reset_inverted); - if (ret) - goto err; - } - - st = kzalloc(sizeof(struct lms283gf05_state), GFP_KERNEL); - if (st == NULL) { - dev_err(&spi->dev, "No memory for device state\n"); - ret = -ENOMEM; - goto err; - } - - ld = lcd_device_register("lms283gf05", &spi->dev, st, &lms_ops); - if (IS_ERR(ld)) { - ret = PTR_ERR(ld); - goto err2; - } - - st->spi = spi; - st->ld = ld; - - dev_set_drvdata(&spi->dev, st); - - /* kick in the LCD */ - if (pdata) - lms283gf05_reset(pdata->reset_gpio, pdata->reset_inverted); - lms283gf05_toggle(spi, disp_initseq, ARRAY_SIZE(disp_initseq)); - - return 0; - -err2: - kfree(st); -err: - if (pdata != NULL) - gpio_free(pdata->reset_gpio); - - return ret; -} - -static int __devexit lms283gf05_remove(struct spi_device *spi) -{ - struct lms283gf05_state *st = dev_get_drvdata(&spi->dev); - struct lms283gf05_pdata *pdata = st->spi->dev.platform_data; - - lcd_device_unregister(st->ld); - - if (pdata != NULL) - gpio_free(pdata->reset_gpio); - - kfree(st); - - return 0; -} - -static struct spi_driver lms283gf05_driver = { - .driver = { - .name = "lms283gf05", - .owner = THIS_MODULE, - }, - .probe = lms283gf05_probe, - .remove = __devexit_p(lms283gf05_remove), -}; - -module_spi_driver(lms283gf05_driver); - -MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); -MODULE_DESCRIPTION("LCD283GF05 LCD"); -MODULE_LICENSE("GPL v2"); |