Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-09-21 12:10:52 +00:00
Code Issues Projects Releases Wiki Activity

mako: add lcd turn-off sequence on shutdown

Browse source 
In the normal case, when the device is turned off, lcd off function doesn't
work.  However, we still need to turn off the panel and DSV convertor. This
patch adds an LCD turn-off function and calls it on device shut down.

Change-Id: I5526f0f08567190050527121d7e0890c05607a68
Signed-off-by: Iliyan Malchev <malchev@google.com>
This commit is contained in:
Devin Kim 2012-11-27 10:45:30 -08:00 committed by Iliyan Malchev
parent 5dae32302c
commit 8db2dc270f
1 changed files with 38 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
drivers/video/msm/mipi_lgit.c
View file

@ -18,6 +18,7 @@
*
*/
#include <linux/gpio.h>
#include <linux/syscore_ops.h>
#include "msm_fb.h"
#include "mipi_dsi.h"
@ -165,6 +166,37 @@ static int mipi_lgit_lcd_off(struct platform_device *pdev)
return 0;
}
static void mipi_lgit_lcd_shutdown(void)
{
int ret = 0;
MIPI_OUTP(MIPI_DSI_BASE + 0x38, 0x10000000);
ret = mipi_dsi_cmds_tx(&lgit_tx_buf,
mipi_lgit_pdata->power_off_set_1,
mipi_lgit_pdata->power_off_set_size_1);
MIPI_OUTP(MIPI_DSI_BASE + 0x38, 0x14000000);
if (ret < 0) {
pr_err("%s: failed to transmit power_off_set_1 cmds\n", __func__);
}
ret = lgit_external_dsv_onoff(0);
if (ret < 0) {
pr_err("%s: failed to turn off external dsv\n", __func__);
}
mdelay(20);
MIPI_OUTP(MIPI_DSI_BASE + 0x38, 0x10000000);
ret = mipi_dsi_cmds_tx(&lgit_tx_buf,
mipi_lgit_pdata->power_off_set_2,
mipi_lgit_pdata->power_off_set_size_2);
MIPI_OUTP(MIPI_DSI_BASE + 0x38, 0x14000000);
if (ret < 0) {
pr_err("%s: failed to transmit power_off_set_2 cmds\n", __func__);
}
pr_info("%s finished\n", __func__);
}
static int mipi_lgit_backlight_on_status(void)
{
return (mipi_lgit_pdata->bl_on_status());
@ -178,6 +210,10 @@ static void mipi_lgit_set_backlight_board(struct msm_fb_data_type *mfd)
mipi_lgit_pdata->backlight_level(level, 0, 0);
}
struct syscore_ops panel_syscore_ops = {
.shutdown = mipi_lgit_lcd_shutdown,
};
static int mipi_lgit_lcd_probe(struct platform_device *pdev)
{
if (pdev->id == 0) {
@ -190,6 +226,8 @@ static int mipi_lgit_lcd_probe(struct platform_device *pdev)
skip_init = true;
msm_fb_add_device(pdev);
register_syscore_ops(&panel_syscore_ops);
return 0;
}