bool target_display_panel_node(char *panel_name, char *pbuf, uint16_t buf_size)
{
int prefix_string_len = strlen(DISPLAY_CMDLINE_PREFIX);
bool ret = true;
panel_name += strspn(panel_name, " ");
if (!strcmp(panel_name, HDMI_PANEL_NAME)) {
if (buf_size < (prefix_string_len + LK_OVERRIDE_PANEL_LEN +
HDMI_CONTROLLER_STRING)) {
dprintf(CRITICAL, "command line argument is greater than buffer size\n");
return false;
}
strlcpy(pbuf, DISPLAY_CMDLINE_PREFIX, buf_size);
buf_size -= prefix_string_len;
strlcat(pbuf, LK_OVERRIDE_PANEL, buf_size);
buf_size -= LK_OVERRIDE_PANEL_LEN;
strlcat(pbuf, HDMI_CONTROLLER_STRING, buf_size);
} else {
ret = gcdb_display_cmdline_arg(pbuf, buf_size);
}
return ret;
}
bool target_display_panel_node(char *panel_name, char *pbuf, uint16_t buf_size)
{
return gcdb_display_cmdline_arg(panel_name, pbuf, buf_size);
}
static int msm8974_edp_panel_power(int enable)
{
struct pm8x41_gpio gpio36_param = {
.direction = PM_GPIO_DIR_OUT,
.function = PM_GPIO_FUNC_2,
.vin_sel = 2, /* VIN_2 */
.pull = PM_GPIO_PULL_UP_1_5 | PM_GPIO_PULLDOWN_10,
.output_buffer = PM_GPIO_OUT_CMOS,
.out_strength = PM_GPIO_OUT_DRIVE_HIGH,
};
struct pm8x41_ldo ldo12 = LDO(PM8x41_LDO12, PLDO_TYPE);
if (enable) {
/* Enable backlight */
dprintf(SPEW, "Enable Backlight\n");
msm8974_pwm_backlight_ctrl(36, 8, 1);
dprintf(SPEW, "Enable Backlight Done\n");
/* Turn on LDO12 for edp vdda */
dprintf(SPEW, "Setting LDO12 n");
pm8x41_ldo_set_voltage(&ldo12, 1800000);
pm8x41_ldo_control(&ldo12, enable);
dprintf(SPEW, "Setting LDO12 Done\n");
/* Panel Enable */
dprintf(SPEW, "Panel Enable\n");
gpio_tlmm_config(58, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA,
GPIO_DISABLE);
gpio_set(58, 2);
dprintf(SPEW, "Panel Enable Done\n");
} else {
/* Keep LDO12 on, otherwise kernel will not boot */
gpio_set(58, 0);
msm8974_pwm_backlight_ctrl(36, 8, 0);
}
return 0;
}
bool target_display_panel_node(char *panel_name, char *pbuf, uint16_t buf_size)
{
int prefix_string_len = strlen(DISPLAY_CMDLINE_PREFIX);
bool ret = true;
panel_name += strspn(panel_name, " ");
if (!strcmp(panel_name, HDMI_PANEL_NAME)) {
if (buf_size < (prefix_string_len + LK_OVERRIDE_PANEL_LEN +
HDMI_CONTROLLER_STRING)) {
dprintf(CRITICAL, "command line argument is greater than buffer size\n");
return false;
}
strlcpy(pbuf, DISPLAY_CMDLINE_PREFIX, buf_size);
buf_size -= prefix_string_len;
strlcat(pbuf, LK_OVERRIDE_PANEL, buf_size);
buf_size -= LK_OVERRIDE_PANEL_LEN;
strlcat(pbuf, HDMI_CONTROLLER_STRING, buf_size);
} else {
ret = gcdb_display_cmdline_arg(panel_name, pbuf, buf_size);
}
return ret;
}
