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display: JDI power off sequence on shutdown

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add shutdown power off sequence for JDI panel

Change-Id: I4d379020eaba5ff965a7252e9e52cc356bc07108
Signed-off-by: yetta_wu <yetta_wu@asus.com>
This commit is contained in:
yetta_wu 2013-03-29 19:16:59 +08:00 committed by Iliyan Malchev
parent b53b44fa82
commit 68fa58273e
1 changed files with 50 additions and 4 deletions
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54
drivers/video/msm/mipi_JDI.c
View file

@ -21,6 +21,7 @@
#include <linux/mfd/pm8xxx/pm8921.h>
#include <linux/gpio.h>
#include <mach/board_asustek.h>
#include <linux/syscore_ops.h>
#define PWM_FREQ_HZ 300
#define PWM_PERIOD_USEC (USEC_PER_SEC / PWM_FREQ_HZ)
@ -31,8 +32,11 @@
#define gpio_EN_VDD_BL PM8921_GPIO_PM_TO_SYS(23)
#define gpio_LCD_BL_EN_SR1 PM8921_GPIO_PM_TO_SYS(30)
#define gpio_LCD_BL_EN_SR2 PM8921_GPIO_PM_TO_SYS(36)
#define gpio_LCM_XRES_SR1 36 /* JDI reset pin */
#define gpio_LCM_XRES_SR2 54 /* JDI reset pin */
static int gpio_LCD_BL_EN;
static int gpio_LCD_BL_EN = gpio_LCD_BL_EN_SR2;
static int gpio_LCM_XRES = gpio_LCM_XRES_SR2;
static struct mipi_dsi_panel_platform_data *mipi_JDI_pdata;
static struct pwm_device *bl_lpm;
@ -205,6 +209,46 @@ static void mipi_JDI_set_backlight(struct msm_fb_data_type *mfd)
}
}
static void mipi_JDI_lcd_shutdown(void)
{
int ret;
pr_info("%s+\n", __func__);
gpio_set_value_cansleep(gpio_LCD_BL_EN, 0);
msleep(20);
pr_info("%s: backlight off\n", __func__);
if (bl_lpm) {
ret = pwm_config(bl_lpm, 0, PWM_PERIOD_USEC);
if (ret)
pr_err("pwm_config on lpm failed %d\n", ret);
pwm_disable(bl_lpm);
}
pr_info("%s, JDI display off command+\n", __func__);
cmdreq_JDI.cmds = JDI_display_off_cmds;
cmdreq_JDI.cmds_cnt = ARRAY_SIZE(JDI_display_off_cmds);
cmdreq_JDI.flags = CMD_REQ_COMMIT;
cmdreq_JDI.rlen = 0;
cmdreq_JDI.cb = NULL;
mipi_dsi_cmdlist_put(&cmdreq_JDI);
pr_info("%s, JDI display off command-\n", __func__);
pr_info("%s: power gpio off\n", __func__);
msleep(20);
gpio_set_value_cansleep(gpio_EN_VDD_BL, 0);
msleep(20);
gpio_set_value_cansleep(gpio_LCM_XRES, 0);
msleep(20);
pr_info("%s-\n", __func__);
}
struct syscore_ops panel_syscore_ops = {
.shutdown = mipi_JDI_lcd_shutdown,
};
static int __devinit mipi_JDI_lcd_probe(struct platform_device *pdev)
{
hw_rev hw_revision = asustek_get_hw_rev();
@ -232,10 +276,12 @@ static int __devinit mipi_JDI_lcd_probe(struct platform_device *pdev)
msm_fb_add_device(pdev);
if (hw_revision == 0)
register_syscore_ops(&panel_syscore_ops);
if (hw_revision == 0) {
gpio_LCD_BL_EN = gpio_LCD_BL_EN_SR1;
else
gpio_LCD_BL_EN = gpio_LCD_BL_EN_SR2;
gpio_LCM_XRES = gpio_LCM_XRES_SR1;
}
pr_info("%s-\n", __func__);
return 0;