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);
}
static void msm8960_backlight_on(void)
{
struct pm8921_gpio backlight_pwm = {
.direction = PM_GPIO_DIR_OUT,
.output_buffer = 0,
.output_value = 0,
.pull = PM_GPIO_PULL_NO,
.vin_sel = 2,
.out_strength = PM_GPIO_STRENGTH_HIGH,
.function = PM_GPIO_FUNC_1,
.inv_int_pol = 0,
};
int rc = pm8921_gpio_config(PM_GPIO(24), &backlight_pwm);
if (rc)
dprintf(CRITICAL, "FAIL pm8921_gpio_config(): rc=%d.\n", rc);
}
#define PM8921_GPIO_BL_LED_EN_MITWOA 22
#define PM8921_GPIO_BL_LED_EN_MITWO 13
#define LM3530_I2C_ADDR (0x38)
void panel_backlight_on_mitwoa(unsigned int on)
{
int ret = 0;
static struct qup_i2c_dev *lm3530_dev = NULL;
if (on) {
lm3530_dev = qup_i2c_init(GSBI_ID_10, 100000, 24000000);
pmic8921_gpio_set(PM8921_GPIO_BL_LED_EN_MITWOA, 1);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x10, 0x17);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x20, 0x00);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x30, 0x00);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0xA0, 0x1F);
} else {
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x10, 0x00);
pmic8921_gpio_set(PM8921_GPIO_BL_LED_EN_MITWOA, 0);
lm3530_dev = NULL;
}
if (ret) {
dprintf(CRITICAL, "panel_backlight_on: ret %d\n", ret);
}
}
/* Read EEPROM to find out product id. Return 0 in case of failure */
uint32_t platform_id_read (void)
{
uint32_t id = 0;
uint16_t offset = 0;
dev = qup_i2c_init(GSBI_ID_8, 100000, 24000000);
if(!dev){
return id;
}
/* Check if EPROM is valid */
if (CONVERT_ENDIAN_U32(eprom_read(0, 4)) == CDT_MAGIC_NUMBER)
{
/* Get offset for platform ID info from Meta Data block 0 */
offset = eprom_read(CONVERT_ENDIAN_U16(0 +
sizeof(struct cdt_header)), 2);
/* Read platform ID */
id = eprom_read(CONVERT_ENDIAN_U16(offset), 4);
id = CONVERT_ENDIAN_U32(id);
id = (id & 0x00FF0000) >> 16;
}
void panel_backlight_on_mitwo(unsigned int on)
{
int ret = 0;
static struct qup_i2c_dev *lm3530_dev = NULL;
if (on) {
lm3530_dev = qup_i2c_init(GSBI_ID_1, 100000, 24000000);
pmic8921_gpio_set(PM8921_GPIO_BL_LED_EN_MITWO, 1);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x10, 0x17);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x20, 0x00);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x30, 0x00);
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0xA0, 0x1F);
} else {
ret += i2c_write(lm3530_dev, LM3530_I2C_ADDR, 0x10, 0x00);
pmic8921_gpio_set(PM8921_GPIO_BL_LED_EN_MITWO, 0);
lm3530_dev = NULL;
}
if (ret) {
dprintf(CRITICAL, "panel_backlight_on: ret %d\n", ret);
}
}