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Need to update fw on resume for zero-flash touch IC.

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The kernel does not have permission to access the /data/vendor
partition, so send the update firmware notify to touchUpg service
on resume for zero-flash touch IC.

avc: denied { search } for name="param" dev="dm-6" ino=275
scontext=u:r:kernel:s0 tcontext=u:object_r:param_data_file:s0
tclass=dir permissive=0

Change-Id: I5d5c9f39bab25a8d3377e0475e79a0411d93b56b
Reviewed-on: https://gerrit.mot.com/1979786
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Reviewed-by: Jichao Zou <zoujc@motorola.com>
Reviewed-by: Jun Weng <wengjun1@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
litong20 2021-06-16 19:55:05 +08:00 • committed by litong
commit 75b0a4d487
3 changed files with 14 additions and 0 deletions
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8
drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_notif.c
View file

@ -186,6 +186,14 @@ static void ts_mmi_queued_resume(struct ts_mmi_dev *touch_cdev)
if (atomic_cmpxchg(&touch_cdev->touch_stopped, 1, 0) == 0)
return;
#ifdef TS_MMI_TOUCH_MULTIWAY_UPDATE_FW
if (touch_cdev->flash_mode == FW_PARAM_MODE &&\
touch_cdev->pdata.fw_load_resume) {
dev_info(DEV_MMI, "%s: send sysfs notify to touchUpg\n", __func__);
sysfs_notify(touch_cdev->mdata->exports.kobj_notify, NULL, "flash_mode");
}
#endif
TRY_TO_CALL(pre_resume);
/* touch IC baseline update always done when IC resume.

5
drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_panel.c
View file

@ -71,6 +71,11 @@ int ts_mmi_parse_dt(struct ts_mmi_dev *touch_cdev,
dev_info(DEV_TS, "%s: using %u reset on resume\n",
__func__, ppdata->reset);
if (of_property_read_bool(of_node, "mmi,fw-load-on-resume")) {
dev_info(DEV_TS, "%s: load firmware on resume\n", __func__);
ppdata->fw_load_resume = true;
}
if (of_property_read_bool(of_node, "mmi,power-off-suspend")) {
dev_info(DEV_TS, "%s: using power off in suspend\n", __func__);
ppdata->power_off_suspend = true;

1
include/linux/touchscreen_mmi.h
View file

@ -340,6 +340,7 @@ struct ts_mmi_dev_pdata {
bool update_refresh_rate;
bool gestures_enabled;
bool palm_enabled;
bool fw_load_resume;
bool suppression_ctrl;
bool pill_region_ctrl;
bool hold_distance_ctrl;