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-rw-r--r--drivers/input/touchscreen/atmel_mxt_ts.c27
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index 7659bc48f1db..20e1224d1a6d 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -324,6 +324,8 @@ struct mxt_data {
/* for config update handling */
struct completion crc_completion;
+
+ enum mxt_suspend_mode suspend_mode;
};
struct mxt_vb2_buffer {
@@ -2868,7 +2870,7 @@ static const struct attribute_group mxt_attr_group = {
static void mxt_start(struct mxt_data *data)
{
- switch (data->pdata->suspend_mode) {
+ switch (data->suspend_mode) {
case MXT_SUSPEND_T9_CTRL:
mxt_soft_reset(data);
@@ -2886,12 +2888,11 @@ static void mxt_start(struct mxt_data *data)
mxt_t6_command(data, MXT_COMMAND_CALIBRATE, 1, false);
break;
}
-
}
static void mxt_stop(struct mxt_data *data)
{
- switch (data->pdata->suspend_mode) {
+ switch (data->suspend_mode) {
case MXT_SUSPEND_T9_CTRL:
/* Touch disable */
mxt_write_object(data,
@@ -2954,8 +2955,6 @@ static const struct mxt_platform_data *mxt_parse_dt(struct i2c_client *client)
pdata->t19_keymap = keymap;
}
- pdata->suspend_mode = MXT_SUSPEND_DEEP_SLEEP;
-
return pdata;
}
#else
@@ -3109,6 +3108,21 @@ mxt_get_platform_data(struct i2c_client *client)
return ERR_PTR(-EINVAL);
}
+static const struct dmi_system_id chromebook_T9_suspend_dmi[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"),
+ },
+ },
+ { }
+};
+
static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct mxt_data *data;
@@ -3135,6 +3149,9 @@ static int mxt_probe(struct i2c_client *client, const struct i2c_device_id *id)
init_completion(&data->reset_completion);
init_completion(&data->crc_completion);
+ data->suspend_mode = dmi_check_system(chromebook_T9_suspend_dmi) ?
+ MXT_SUSPEND_T9_CTRL : MXT_SUSPEND_DEEP_SLEEP;
+
data->reset_gpio = devm_gpiod_get_optional(&client->dev,
"reset", GPIOD_OUT_LOW);
if (IS_ERR(data->reset_gpio)) {