From 1943d1723e7a7ee1a7b9b0ba4878dde0dc100671 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 26 May 2017 16:09:48 -0700 Subject: [PATCH] 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 Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/silead.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c index 813dd68a5c82..0dbcf105f7db 100644 --- a/drivers/input/touchscreen/silead.c +++ b/drivers/input/touchscreen/silead.c @@ -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; } -- 2.20.1