static int lead_lcd_power(struct pxa910fb_info *fbi, unsigned int spi_gpio_cs, unsigned int spi_gpio_reset, int on)
{
int err = 0;
mfp_config(ARRAY_AND_SIZE(tpo_lcd_gpio_pin_config));
lcd_panel_gpio_spi_init();
if (on)
{
if (spi_gpio_reset != -1) {
err = gpio_request(spi_gpio_reset, "TPO_LCD_SPI_RESET");
if (err) {
printk("failed to request GPIO for TPO LCD RESET\n");
return 1;
}
gpio_direction_output(spi_gpio_reset, 0);
msleep(100);
gpio_set_value(spi_gpio_reset, 1);
msleep(100);
gpio_free(spi_gpio_reset);
}
lcd_lead_init();
lcd_power_on(1, 50);
}
else
{
//lcd_panel_gpio_spi_init();
//lcd_panel_sleep();
lcd_power_on(0, 0);
err = gpio_request(spi_gpio_reset, "TPO_LCD_SPI_RESET");
if (err) {
printk("failed to request LCD RESET gpio\n");
return 1;
}
gpio_set_value(spi_gpio_reset, 0);
gpio_free(spi_gpio_reset);
}
//out:
gpio_direction_output(cs_gpio, 0);
gpio_direction_output(clk_gpio, 0);
gpio_direction_output(d_gpio, 0);
gpio_free(d_gpio_in);
gpio_free(cs_gpio);
gpio_free(clk_gpio);
gpio_free(d_gpio);
return 0;
}
void auo_board_lcd_enable(void)
{
/* Make sure dev is created and initialized properly */
dev = qup_i2c_init(GSBI_ID_8, 100000, 24000000);
if (!dev) {
dprintf(CRITICAL, "Error in qup_i2c_init\n");
while (1) ;
}
/* Setup RESX_N */
uint8_t open_drain_a = expander_read(GPIO_EXPANDER_REG_OPEN_DRAIN_A);
uint8_t dir_a = expander_read(GPIO_EXPANDER_REG_DIR_A);
uint8_t data_a = expander_read(GPIO_EXPANDER_REG_DATA_A);
expander_write(GPIO_EXPANDER_REG_DIR_A, ~0x04 & dir_a);
expander_write(GPIO_EXPANDER_REG_DATA_A, ~0x04 & data_a);
/* Power on the appropiate PMIC LDO power rails */
if (lcd_power_on())
return;
/* Toggle RESX_N */
mdelay(20);
expander_write(GPIO_EXPANDER_REG_DATA_A, 0x04 | data_a);
mdelay(1);
expander_write(GPIO_EXPANDER_REG_DATA_A, ~0x04 & data_a);
mdelay(1);
expander_write(GPIO_EXPANDER_REG_DATA_A, 0x04 | data_a);
mdelay(25);
/* Enable the gpios for LCD */
lcd_gpio_cfg(1);
auo_lcdc_init();
}
void board_lcd_enable(void)
{
int rc = -1;
dev = qup_i2c_init(GSBI_ID_8, 100000, 24000000);
/* Make sure dev is created and initialized properly */
if (!dev) {
while (1) ;
return;
}
/* Store current value of these registers as to not destroy their previous
state. */
uint8_t open_drain_a = expander_read(GPIO_EXPANDER_REG_OPEN_DRAIN_A);
uint8_t dir_b = expander_read(GPIO_EXPANDER_REG_DIR_B);
uint8_t dir_a = expander_read(GPIO_EXPANDER_REG_DIR_A);
uint8_t data_b = expander_read(GPIO_EXPANDER_REG_DATA_B);
uint8_t data_a = expander_read(GPIO_EXPANDER_REG_DATA_A);
/* Set the LVDS_SHUTDOWN_N to open drain and output low. */
dprintf(INFO, "Enable lvds_shutdown_n line for Open Drain.\n");
expander_write(GPIO_EXPANDER_REG_OPEN_DRAIN_A, 0x04 | open_drain_a);
dprintf(INFO, "Enable lvds_shutdown_n line for output.\n");
expander_write(GPIO_EXPANDER_REG_DIR_A, ~0x04 & dir_a);
dprintf(INFO, "Drive the LVDS_SHUTDOWN_N pin high here.\n");
expander_write(GPIO_EXPANDER_REG_DATA_A, 0x04 | data_a);
/* Turn on the VREG_L2B to 3.3V. */
/* Power on the appropiate PMIC LDO power rails */
if (lcd_power_on())
return;
/* Enable the GPIO as LCDC mode LCD. */
lcd_gpio_cfg(1);
/* Arbitrary delay */
udelay(20000);
/* Set the GPIOs needed for backlight */
bl_gpio_init();
/* Set backlight level with API (to 8 by default) */
rc = panel_set_backlight(8);
if(rc)
dprintf(CRITICAL,"Error in setting panel backlight\n");
dprintf(INFO, "Enable BACKLIGHT_EN line for output.\n");
expander_write(GPIO_EXPANDER_REG_DIR_B, ~0x10 & dir_b);
dprintf(INFO, "Drive BACKLIGHT_EN to high\n");
expander_write(GPIO_EXPANDER_REG_DATA_B, 0x10 | data_b);
}
void board_lcd_enable(void)
{
dev = qup_i2c_init(GSBI8_BASE, 100000, 24000000);
/* Make sure dev is created and initialized properly */
if (!dev) {
while (1) ;
return;
}
/* Store current value of these registers as to not destroy their previous
state. */
uint8_t open_drain_a = expander_read(GPIO_EXPANDER_REG_OPEN_DRAIN_A);
uint8_t dir_b = expander_read(GPIO_EXPANDER_REG_DIR_B);
uint8_t dir_a = expander_read(GPIO_EXPANDER_REG_DIR_A);
uint8_t data_b = expander_read(GPIO_EXPANDER_REG_DATA_B);
uint8_t data_a = expander_read(GPIO_EXPANDER_REG_DATA_A);
/* Set the LVDS_SHUTDOWN_N to open drain and output low. */
dprintf(INFO, "Enable lvds_shutdown_n line for Open Drain.\n");
expander_write(GPIO_EXPANDER_REG_OPEN_DRAIN_A, 0x04 | open_drain_a);
dprintf(INFO, "Enable lvds_shutdown_n line for output.\n");
expander_write(GPIO_EXPANDER_REG_DIR_A, ~0x04 & dir_a);
dprintf(INFO, "Drive the LVDS_SHUTDOWN_N pin high here.\n");
expander_write(GPIO_EXPANDER_REG_DATA_A, 0x04 | data_a);
/* Turn on the VREG_L2B to 3.3V. */
/* Power on the appropiate PMIC LDO power rails */
if (lcd_power_on())
return;
/* Enable the GPIO as LCDC mode LCD. */
lcd_gpio_cfg(1);
/* Arbitrary delay */
udelay(20000);
/* Set the backlight duty cycle via the PM8058 LPG_DRV1 and LPG_DRV2 */
bl_duty_cycle_init();
dprintf(INFO, "Enable BACKLIGHT_EN line for output.\n");
expander_write(GPIO_EXPANDER_REG_DIR_B, ~0x10 & dir_b);
dprintf(INFO, "Drive BACKLIGHT_EN to high\n");
expander_write(GPIO_EXPANDER_REG_DATA_B, 0x10 | data_b);
}
void lcd_init_device(void)
{
#ifdef BOOTLOADER /* Bother at all to do this again? */
/* Init GPIO ports */
lcd_init_gpio();
lcd_power_on();
lcd_display_on();
#else
power_on = true;
display_on = true;
lcd_set_invert_display(false);
lcd_set_flip(false);
#endif
}
static ssize_t lcd_power_file_cmd_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
int value;
sscanf(buf, "%d", &value);
printk(KERN_INFO "[lcd_power] in lcd_power_file_cmd_store, input value = %d \n", value);
if (value == 1) {
lcd_power_on();
printk(KERN_INFO "[lcd_power on] <= value : %d \n", value);
} else if (value == 0) {
lcd_power_off();
printk(KERN_INFO "[lcd_power off] <= value : %d \n", value);
} else
printk(KERN_INFO "[lcd_power] lcd is already = %d \n", lcdonoff_test);
return size;
}
static void lcd_truely_1p3828_config_480_800()
{
int spi_fd, i;
char buf[64];
#ifndef LCD_BRIGHEST
int pwm_fd1, pwm_fd2;
int lcd_brightness;
int ret;
#endif
/* Power On */
lcd_power_on();
/* Hardware Reset */
lcd_reset();
#ifdef LCD_BRIGHEST
/* Backlight on */
lcd_backlight_on();
#endif
/* Program TRUELY_1P3828 to output 480x800 */
if (lcd_spi_dev_node(buf)) {
perror("Unable to get lcd spi bus_id or cs_id!\n");
goto lcd_truely_1p3828_config_480_800_exit;
}
spi_fd = open(buf, O_WRONLY);
if (spi_fd < 0) {
perror("Can't open TRUELY_1P3828_SPI_DEV_NODE to write");
goto lcd_truely_1p3828_config_480_800_exit;
} else {
truely_1p3828_set_spi_bus(spi_fd);
}
truely_1p3828_write_cmd(spi_fd, 0xB9); //Set_EXTC
truely_1p3828_write_data(spi_fd, 0xFF);
truely_1p3828_write_data(spi_fd, 0x83);
truely_1p3828_write_data(spi_fd, 0x69);
truely_1p3828_write_cmd(spi_fd, 0xB1); //Set Power
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x34);
truely_1p3828_write_data(spi_fd, 0x06);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x0F); //
truely_1p3828_write_data(spi_fd, 0x0F);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x32);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x07);
truely_1p3828_write_data(spi_fd, 0x23);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_cmd(spi_fd, 0xB2); // SET Display 480x800
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x2b);
truely_1p3828_write_data(spi_fd, 0x0A);
truely_1p3828_write_data(spi_fd, 0x0A);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0xFF);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x03);
truely_1p3828_write_data(spi_fd, 0x03);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_cmd(spi_fd, 0xB4); // SET Display 480x800
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x18);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x10);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_cmd(spi_fd, 0xB6); // SET VCOM
truely_1p3828_write_data(spi_fd, 0x2C);
truely_1p3828_write_data(spi_fd, 0x2C);
truely_1p3828_write_cmd(spi_fd, 0xD5); //SET GIP
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x05);
truely_1p3828_write_data(spi_fd, 0x03);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_data(spi_fd, 0x09);
truely_1p3828_write_data(spi_fd, 0x10);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x37);
truely_1p3828_write_data(spi_fd, 0x37);
truely_1p3828_write_data(spi_fd, 0x20);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x46);
truely_1p3828_write_data(spi_fd, 0x8A);
truely_1p3828_write_data(spi_fd, 0x57);
truely_1p3828_write_data(spi_fd, 0x9B);
truely_1p3828_write_data(spi_fd, 0x20);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x46);
truely_1p3828_write_data(spi_fd, 0x8A);
truely_1p3828_write_data(spi_fd, 0x57);
truely_1p3828_write_data(spi_fd, 0x9B);
truely_1p3828_write_data(spi_fd, 0x07);
truely_1p3828_write_data(spi_fd, 0x0F);
truely_1p3828_write_data(spi_fd, 0x02);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_cmd(spi_fd, 0xE0); //SET GAMMA
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x0D);
truely_1p3828_write_data(spi_fd, 0x2D);
truely_1p3828_write_data(spi_fd, 0x34);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0x38);
truely_1p3828_write_data(spi_fd, 0x09);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x13);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x0D);
truely_1p3828_write_data(spi_fd, 0x2D);
truely_1p3828_write_data(spi_fd, 0x34);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0x38);
truely_1p3828_write_data(spi_fd, 0x09);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x13);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_cmd(spi_fd, 0xC1); //set DGC
truely_1p3828_write_data(spi_fd, 0x01); //enable DGC function
truely_1p3828_write_data(spi_fd, 0x02); //SET R-GAMMA
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x1A);
truely_1p3828_write_data(spi_fd, 0x22);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x36);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x48);
truely_1p3828_write_data(spi_fd, 0x51);
truely_1p3828_write_data(spi_fd, 0x58);
truely_1p3828_write_data(spi_fd, 0x60);
truely_1p3828_write_data(spi_fd, 0x68);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x78);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x88);
truely_1p3828_write_data(spi_fd, 0x90);
truely_1p3828_write_data(spi_fd, 0x98);
truely_1p3828_write_data(spi_fd, 0xA0);
truely_1p3828_write_data(spi_fd, 0xA7);
truely_1p3828_write_data(spi_fd, 0xAF);
truely_1p3828_write_data(spi_fd, 0xB6);
truely_1p3828_write_data(spi_fd, 0xBE);
truely_1p3828_write_data(spi_fd, 0xC7);
truely_1p3828_write_data(spi_fd, 0xCE);
truely_1p3828_write_data(spi_fd, 0xD6);
truely_1p3828_write_data(spi_fd, 0xDE);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xEF);
truely_1p3828_write_data(spi_fd, 0xF5);
truely_1p3828_write_data(spi_fd, 0xFB);
truely_1p3828_write_data(spi_fd, 0xFC);
truely_1p3828_write_data(spi_fd, 0xFE);
truely_1p3828_write_data(spi_fd, 0x8C);
truely_1p3828_write_data(spi_fd, 0xA4);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0xEC);
truely_1p3828_write_data(spi_fd, 0x1B);
truely_1p3828_write_data(spi_fd, 0x4C);
truely_1p3828_write_data(spi_fd, 0x40);
truely_1p3828_write_data(spi_fd, 0x02); //SET G-Gamma
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x1A);
truely_1p3828_write_data(spi_fd, 0x22);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x36);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x48);
truely_1p3828_write_data(spi_fd, 0x51);
truely_1p3828_write_data(spi_fd, 0x58);
truely_1p3828_write_data(spi_fd, 0x60);
truely_1p3828_write_data(spi_fd, 0x68);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x78);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x88);
truely_1p3828_write_data(spi_fd, 0x90);
truely_1p3828_write_data(spi_fd, 0x98);
truely_1p3828_write_data(spi_fd, 0xA0);
truely_1p3828_write_data(spi_fd, 0xA7);
truely_1p3828_write_data(spi_fd, 0xAF);
truely_1p3828_write_data(spi_fd, 0xB6);
truely_1p3828_write_data(spi_fd, 0xBE);
truely_1p3828_write_data(spi_fd, 0xC7);
truely_1p3828_write_data(spi_fd, 0xCE);
truely_1p3828_write_data(spi_fd, 0xD6);
truely_1p3828_write_data(spi_fd, 0xDE);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xEF);
truely_1p3828_write_data(spi_fd, 0xF5);
truely_1p3828_write_data(spi_fd, 0xFB);
truely_1p3828_write_data(spi_fd, 0xFC);
truely_1p3828_write_data(spi_fd, 0xFE);
truely_1p3828_write_data(spi_fd, 0x8C);
truely_1p3828_write_data(spi_fd, 0xA4);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0xEC);
truely_1p3828_write_data(spi_fd, 0x1B);
truely_1p3828_write_data(spi_fd, 0x4C);
truely_1p3828_write_data(spi_fd, 0x40);
truely_1p3828_write_data(spi_fd, 0x02); //SET B-Gamma
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x1A);
truely_1p3828_write_data(spi_fd, 0x22);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x36);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x48);
truely_1p3828_write_data(spi_fd, 0x51);
truely_1p3828_write_data(spi_fd, 0x58);
truely_1p3828_write_data(spi_fd, 0x60);
truely_1p3828_write_data(spi_fd, 0x68);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x78);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x88);
truely_1p3828_write_data(spi_fd, 0x90);
truely_1p3828_write_data(spi_fd, 0x98);
truely_1p3828_write_data(spi_fd, 0xA0);
truely_1p3828_write_data(spi_fd, 0xA7);
truely_1p3828_write_data(spi_fd, 0xAF);
truely_1p3828_write_data(spi_fd, 0xB6);
truely_1p3828_write_data(spi_fd, 0xBE);
truely_1p3828_write_data(spi_fd, 0xC7);
truely_1p3828_write_data(spi_fd, 0xCE);
truely_1p3828_write_data(spi_fd, 0xD6);
truely_1p3828_write_data(spi_fd, 0xDE);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xEF);
truely_1p3828_write_data(spi_fd, 0xF5);
truely_1p3828_write_data(spi_fd, 0xFB);
truely_1p3828_write_data(spi_fd, 0xFC);
truely_1p3828_write_data(spi_fd, 0xFE);
truely_1p3828_write_data(spi_fd, 0x8C);
truely_1p3828_write_data(spi_fd, 0xA4);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0xEC);
truely_1p3828_write_data(spi_fd, 0x1B);
truely_1p3828_write_data(spi_fd, 0x4C);
truely_1p3828_write_data(spi_fd, 0x40);
truely_1p3828_write_cmd(spi_fd, 0x2D);//Look up table
for(i = 0; i < 64; i++) {
truely_1p3828_write_data(spi_fd, 8 * i);
}
for(i = 0; i < 64; i++) {
truely_1p3828_write_data(spi_fd, 4 * i);
}
for(i = 0; i < 64; i++) {
truely_1p3828_write_data(spi_fd, 8 * i);
}
MSLEEP(10);
truely_1p3828_write_cmd(spi_fd, 0x3A); //Set COLMOD
truely_1p3828_write_data(spi_fd, 0x77);
truely_1p3828_write_cmd(spi_fd, 0x11); //Sleep Out
MSLEEP(120);
truely_1p3828_write_cmd(spi_fd, 0x29); //Display On
//truely_1p3828_write_cmd(spi_fd, 0x2C); //Display On
close(spi_fd);
#ifndef LCD_BRIGHEST
/* Backlight on */
pwm_fd1 = open(TRUELY_1P3828_PWM_PATH("max_brightness"), O_RDONLY);
if (pwm_fd1 < 0) {
perror("Can't open max_brightness to read");
goto lcd_truely_1p3828_config_480_800_exit;
}
ret = read(pwm_fd1, buf, sizeof(buf));
close(pwm_fd1);
if (ret <= 0) {
perror("Can't read max_brightness");
goto lcd_truely_1p3828_config_480_800_exit;
} else {
lcd_brightness = atoi(buf) / 2;
}
pwm_fd2 = open(TRUELY_1P3828_PWM_PATH("brightness"), O_WRONLY);
if (pwm_fd2 < 0) {
perror("Can't open brightness to write");
goto lcd_truely_1p3828_config_480_800_exit;
}
sprintf(buf, "%d", lcd_brightness);
ret = write(pwm_fd2, buf, sizeof(buf));
close(pwm_fd2);
if (ret <= 0) {
perror("Can't write brightness");
goto lcd_truely_1p3828_config_480_800_exit;
}
#endif
lcd_truely_1p3828_config_480_800_exit:
return;
}