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Cypfq: dlkm: Add power off process for ili9882a

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- Since now we having display/touch current drain issue when suspend,
so need to set rst pin to low when suspend and add reset process to
change rst pin to high when resume.
- For compatibility with other projects, add macro ILITEK_SUSPEND_PWROFF
to control this function.

Change-Id: Iab7d65adf820ccfdb4c3e50d7a5bdff624097694
Signed-off-by: wengjun1 <wengjun1@motorola.com>
Reviewed-on: https://gerrit.mot.com/2035322
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
wengjun1 2021-08-06 17:37:13 +08:00 committed by Jun Weng
parent fb61470904
commit f3e69e7065
3 changed files with 22 additions and 0 deletions
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4
drivers/input/touchscreen/ili9882_mmi/Android.mk
View file

@ -21,6 +21,10 @@ ifeq ($(ILITEK_FW_PANEL),true)
KERNEL_CFLAGS += CONFIG_ILITEK_FW_PANEL=y
endif
ifeq ($(ILITEK_SUSPEND_PWROFF),true)
KERNEL_CFLAGS += CONFIG_ILITEK_SUSPEND_PWROFF=y
endif
ifeq ($(ILITEK_CHARGER),true)
KERNEL_CFLAGS += CONFIG_ILITEK_CHARGER=y
endif

3
drivers/input/touchscreen/ili9882_mmi/Kbuild
View file

@ -26,6 +26,9 @@ endif
ifneq ($(filter m y,$(CONFIG_ILITEK_FW_PANEL)),)
EXTRA_CFLAGS += -DILI_FW_PANEL
endif
ifneq ($(filter m y,$(CONFIG_ILITEK_SUSPEND_PWROFF)),)
EXTRA_CFLAGS += -DILI_SUSPEND_PWROFF
endif
ifneq ($(filter m y,$(CONFIG_ILITEK_CHARGER)),)
EXTRA_CFLAGS += -DILI_CONFIG_CHARGER
endif

15
drivers/input/touchscreen/ili9882_mmi/ili9882.c
View file

@ -51,6 +51,10 @@ static void ilitek_resume_by_ddi_work(struct work_struct *work)
disable_irq_wake(ilits->irq_num);
#endif
#ifdef ILI_SUSPEND_PWROFF
ili_pinctrl_select_normal(ilits);
#endif
/* Set tp as demo mode and reload code if it's iram. */
ilits->actual_tp_mode = P5_X_FW_AP_MODE;
if (ilits->fw_upgrade_mode == UPGRADE_IRAM)
@ -58,7 +62,9 @@ static void ilitek_resume_by_ddi_work(struct work_struct *work)
else
ili_reset_ctrl(ilits->reset);
#ifndef ILI_SUSPEND_PWROFF
ili_pinctrl_select_normal(ilits);
#endif
ili_irq_enable();
ILI_INFO("TP resume end by wq\n");
@ -542,8 +548,17 @@ int ili_sleep_handler(int mode)
#endif
{
ili_pinctrl_select_suspend(ilits);
#ifdef ILI_SUSPEND_PWROFF
gpio_direction_output(ilits->tp_rst, 1);
mdelay(1);
gpio_set_value(ilits->tp_rst, 0);
mdelay(5);
#else
if (ili_ic_func_ctrl("sleep", DEEP_SLEEP_IN) < 0)
ILI_ERR("Write deep sleep in cmd failed\n");
#endif
}
ILI_INFO("TP deep suspend end\n");
ilits->tp_suspend = true;