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touchscreen_mmi: Add default pinctrl methord

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If ts_mmi_on_state or ts_mmi_off_state pinctrl states is defined, and
vendor method not defined it's pinctrl callback function.
Add default pinctrl function for this situation.

Change-Id: I5873980ee6425b22af1af416228481af1abe360d
Signed-off-by: haojl2 <haojl2@motorola.com>
Reviewed-on: https://gerrit.mot.com/1553615
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: <litong20@motorola.com>
Reviewed-by: Jianqi Yang <yangj@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
haojl2 2020-05-14 00:38:12 +08:00 • committed by Jialei Hao
commit 843da210a8
2 changed files with 39 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

36
drivers/input/touchscreen/touchscreen_mmi/touchscreen_mmi_class.c
View file

@ -27,6 +27,7 @@
#include <linux/string.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/pinctrl/consumer.h>
#define FMT_STRING "%s"
#define FMT_INTEGER "%d"
@ -493,6 +494,28 @@ static int get_class_fname_handler(struct device *parent, const char **pfname)
return 0;
}
static int ts_mmi_default_pinctrl(struct device *parent, int on)
{
struct ts_mmi_dev *touch_cdev = ts_mmi_dev_to_cdev(parent);
if (!touch_cdev)
return -ENODEV;
dev_info(DEV_TS, "%s: %s\n", __func__, on ? "ACTIVE" : "SUSPEND");
if (on) {
if (!IS_ERR_OR_NULL(touch_cdev->pinctrl_on_state))
pinctrl_select_state(touch_cdev->pinctrl_node,
touch_cdev->pinctrl_on_state);
} else {
if (!IS_ERR_OR_NULL(touch_cdev->pinctrl_off_state))
pinctrl_select_state(touch_cdev->pinctrl_node,
touch_cdev->pinctrl_off_state);
}
return 0;
}
/**
* ts_mmi_dev_register - register a new object of ts_mmi_dev class.
* @parent: The device to register.
@ -525,6 +548,19 @@ int ts_mmi_dev_register(struct device *parent,
goto PANEL_PARSE_DT_FAILED;
}
touch_cdev->pinctrl_node = devm_pinctrl_get(DEV_TS);
if (IS_ERR_OR_NULL(touch_cdev->pinctrl_node)) {
dev_info(DEV_TS, "%s: No pinctrl defined\n", __func__);
} else if (!touch_cdev->mdata->pinctrl) {
touch_cdev->pinctrl_on_state = pinctrl_lookup_state(touch_cdev->pinctrl_node, "ts_mmi_on_state");
touch_cdev->pinctrl_off_state = pinctrl_lookup_state(touch_cdev->pinctrl_node, "ts_mmi_off_state");
if (!IS_ERR_OR_NULL(touch_cdev->pinctrl_on_state) ||
!IS_ERR_OR_NULL(touch_cdev->pinctrl_off_state)) {
dev_info(DEV_TS, "%s: No pinctrl method add default\n", __func__);
touch_cdev->mdata->pinctrl = ts_mmi_default_pinctrl;
}
}
ts_mmi_get_vendor_info(touch_cdev);
ret = input_get_new_minor(-1, 1, true);

3
include/linux/touchscreen_mmi.h
View file

@ -266,6 +266,9 @@ struct ts_mmi_dev {
struct notifier_block panel_nb;
struct mutex extif_mutex;
struct mutex method_mutex;
struct pinctrl *pinctrl_node;
struct pinctrl_state *pinctrl_on_state;
struct pinctrl_state *pinctrl_off_state;
atomic_t touch_stopped;
enum ts_mmi_pm_mode pm_mode;