Patch "Input: tsc2007 - check for presence and power down tsc2007 during probe" has been added to the 4.9-stable tree

This is a note to let you know that I've just added the patch titled

Input: tsc2007 - check for presence and power down tsc2007 during probe

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     input-tsc2007-check-for-presence-and-power-down-tsc2007-during-probe.patch

and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: "H. Nikolaus Schaller" <[email protected]>
Date: Fri, 17 Feb 2017 12:51:19 -0800
Subject: Input: tsc2007 - check for presence and power down tsc2007 during probe

From: "H. Nikolaus Schaller" <[email protected]>

[ Upstream commit 934df23171e7c5b71d937104d4957891c39748ff ]

1. check if chip is really present and don't succeed if it isn't.
2. if it succeeds, power down the chip until accessed

---
 drivers/input/touchscreen/tsc2007.c |    8 ++++++++
 1 file changed, 8 insertions(+)

@@ -455,6 +455,14 @@ static int tsc2007_probe(struct i2c_clie
 
 	tsc2007_stop(ts);
 
+	/* power down the chip (TSC2007_SETUP does not ACK on I2C) */
+	err = tsc2007_xfer(ts, PWRDOWN);
+	if (err < 0) {
+		dev_err(&client->dev,
+			"Failed to setup chip: %d\n", err);
+		return err;	/* usually, chip does not respond */
+	}
+
 	err = input_register_device(input_dev);
 	if (err) {
 		dev_err(&client->dev,

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/input-tsc2007-check-for-presence-and-power-down-tsc2007-during-probe.patch