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Input: silead - disable interrupt during suspend 

When we put the touchscreen controller in low-power mode the irq
pin may trigger (float) and if we then try to read a data packet we
get the following error in dmesg:

[  478.801017] silead_ts i2c-MSSL1680:00: Data read error -121

This commit disables the irq during suspend/resume fixing this error.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
zero-colors
Hans de Goede 2017-05-26 16:09:48 -07:00 committed by Dmitry Torokhov
parent a04f144059
commit 1943d1723e
1 changed files with 3 additions and 0 deletions
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3
drivers/input/touchscreen/silead.c
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@ -526,6 +526,7 @@ static int __maybe_unused silead_ts_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
disable_irq(client->irq);
silead_ts_set_power(client, SILEAD_POWER_OFF);
return 0;
}
@ -551,6 +552,8 @@ static int __maybe_unused silead_ts_resume(struct device *dev)
return -ENODEV;
}
enable_irq(client->irq);
return 0;
}