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sec_mmi: resume faster

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Originally it was planned to do HW reset on resume. However, HW
reset was taking way to long and S.SLI suggested first to switch
to SW reset and then to simply set Normal power mode. Thus this
commit combines 2 things:

 * new parameter to reset function (hw or sw)
 * setting normal mode on resume

Change-Id: Ic52737f09cc7848377f91b274b47ee6dacee5204
Signed-off-by: Konstantin Makariev <hcv867@motorola.com>
Reviewed-on: https://gerrit.mot.com/1397255
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Konstantin Makariev 2019-08-05 10:11:49 -05:00 • committed by Konstantin Makariev
commit c8e7268b1f
2 changed files with 20 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/input/touchscreen/sec_mmi/sec_mmi.h
View file

@ -36,7 +36,7 @@ struct sec_mmi_data {
const char *class_entry_name;
const char *bound_display;
void (*hard_reset)(struct sec_mmi_data *data);
void (*reset)(struct sec_mmi_data *data, int mode);
};
int sec_mmi_data_init(struct sec_ts_data *ts, bool enable);

31
drivers/input/touchscreen/sec_mmi/sec_ts_mmi.c
View file

@ -316,7 +316,7 @@ static void sec_mmi_fw_read_id(struct sec_mmi_data *data)
ts->device_id[2], ts->device_id[3]);
}
static void sec_mmi_ic_reset(struct sec_mmi_data *data)
static void sec_mmi_ic_reset(struct sec_mmi_data *data, int mode)
{
struct sec_ts_data *ts = data->ts_ptr;
@ -327,9 +327,17 @@ static void sec_mmi_ic_reset(struct sec_mmi_data *data)
mutex_lock(&ts->modechange);
__pm_stay_awake(&ts->wakelock);
gpio_set_value(ts->plat_data->rst_gpio, 0);
usleep_range(10, 10);
gpio_set_value(ts->plat_data->rst_gpio, 1);
if (mode) {
gpio_set_value(ts->plat_data->rst_gpio, 0);
usleep_range(10, 10);
gpio_set_value(ts->plat_data->rst_gpio, 1);
} else {
int ret;
ret = ts->sec_ts_i2c_write(ts, SEC_TS_CMD_SW_RESET, NULL, 0);
if (ret < 0)
dev_err(DEV_MMI, "%s: error sending sw reset cmd\n", __func__);
}
sec_ts_wait_for_ready(ts, SEC_TS_ACK_BOOT_COMPLETE);
@ -402,7 +410,10 @@ static void sec_mmi_queued_resume(struct work_struct *w)
if (atomic_cmpxchg(&data->touch_stopped, 1, 0) == 0)
return;
sec_mmi_ic_reset(data);
sec_ts_set_lowpowermode(ts, TO_TOUCH_MODE);
if (ts->lowpower_mode)
complete_all(&ts->resume_done);
ret = ts->sec_ts_i2c_read(ts, SEC_TS_READ_BOOT_STATUS,
&buffer, sizeof(buffer));
if (ret < 0)
@ -411,10 +422,6 @@ static void sec_mmi_queued_resume(struct work_struct *w)
__func__, ret);
ts->fw_invalid = buffer == SEC_TS_STATUS_BOOT_MODE;
ts->power_status = SEC_TS_STATE_POWER_ON;
if (ts->lowpower_mode)
complete_all(&ts->resume_done);
dev_info(DEV_MMI, "%s: touch resumed\n", __func__);
}
@ -584,7 +591,6 @@ static ssize_t sec_mmi_erase_store(struct device *dev,
sec_ts_irq_enable(ts, false);
__pm_stay_awake(&ts->wakelock);
ts->fw_invalid = true;
mutex_unlock(&ts->modechange);
@ -622,7 +628,8 @@ static ssize_t sec_mmi_reset_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t size)
{
struct sec_ts_data *ts = dev_get_drvdata(dev);
sec_mmi_ic_reset(ts->mmi_ptr);
struct sec_mmi_data *data = ts->mmi_ptr;
data->reset(ts->mmi_ptr, 1);
return size;
}
@ -733,7 +740,7 @@ int sec_mmi_data_init(struct sec_ts_data *ts, bool enable)
ts->mmi_ptr = (void *)data;
data->ts_ptr = ts;
data->i2c_client = ts->client;
data->hard_reset = sec_mmi_ic_reset;
data->reset = sec_mmi_ic_reset;
sec_mmi_dt(data);