This is a note to let you know that I've just added the patch titled
Input: edt-ft5x06 - fix setting gain, offset, and threshold via device tree
to the 4.4-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-edt-ft5x06-fix-setting-gain-offset-and-threshold-via-device-tree.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dc262dfaaeda7617ae0b15b5ce1252a6cd102b19 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Date: Tue, 9 Feb 2016 09:32:42 -0800
Subject: Input: edt-ft5x06 - fix setting gain, offset, and threshold via device tree
From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
commit dc262dfaaeda7617ae0b15b5ce1252a6cd102b19 upstream.
A recent patch broke parsing the gain, offset, and threshold parameters
from device tree. Instead of setting the cached values and writing them
to the correct registers during probe, it would write the values from DT
into the register address variables and never write them to the chip
during normal operation.
Fixes: 2e23b7a96372 ("Input: edt-ft5x06 - use generic properties API")
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/edt-ft5x06.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -822,16 +822,22 @@ static void edt_ft5x06_ts_get_defaults(s
int error;
error = device_property_read_u32(dev, "threshold", &val);
- if (!error)
- reg_addr->reg_threshold = val;
+ if (!error) {
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_threshold, val);
+ tsdata->threshold = val;
+ }
error = device_property_read_u32(dev, "gain", &val);
- if (!error)
- reg_addr->reg_gain = val;
+ if (!error) {
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_gain, val);
+ tsdata->gain = val;
+ }
error = device_property_read_u32(dev, "offset", &val);
- if (!error)
- reg_addr->reg_offset = val;
+ if (!error) {
+ edt_ft5x06_register_write(tsdata, reg_addr->reg_offset, val);
+ tsdata->offset = val;
+ }
}
static void
Patches currently in stable-queue which might be from p.zabel@xxxxxxxxxxxxxx are
queue-4.4/input-edt-ft5x06-fix-setting-gain-offset-and-threshold-via-device-tree.patch
