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From: Marco Felsch <m.felsch@pengutronix.de>
To: dmitry.torokhov@gmail.com, andriy.shevchenko@linux.intel.com,
	hdegoede@redhat.com, LW@KARO-electronics.de
Cc: linux-input@vger.kernel.org, kernel@pengutronix.de
Subject: [PATCH 1/4] Input: edt-ft5x06 - fix get_default register write access
Date: Thu, 27 Feb 2020 12:28:16 +0100	[thread overview]
Message-ID: <20200227112819.16754-2-m.felsch@pengutronix.de> (raw)
In-Reply-To: <20200227112819.16754-1-m.felsch@pengutronix.de>

Since commit b6eba86030bf ("Input: edt-ft5x06 - add offset support for
ev-ft5726") offset-x and offset-y is supported. Devices using those
offset parameters don't support the offset parameter so we need to add
the NO_REGISTER check for edt_ft5x06_ts_get_defaults().

Fixes: b6eba86030bf ("Input: edt-ft5x06 - add offset support for ev-ft5726")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 drivers/input/touchscreen/edt-ft5x06.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index d2587724c52a..9b8450794a8a 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -938,19 +938,25 @@ static void edt_ft5x06_ts_get_defaults(struct device *dev,
 
 	error = device_property_read_u32(dev, "offset", &val);
 	if (!error) {
-		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset, val);
+		if (reg_addr->reg_offset != NO_REGISTER)
+			edt_ft5x06_register_write(tsdata,
+						  reg_addr->reg_offset, val);
 		tsdata->offset = val;
 	}
 
 	error = device_property_read_u32(dev, "offset-x", &val);
 	if (!error) {
-		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_x, val);
+		if (reg_addr->reg_offset_x != NO_REGISTER)
+			edt_ft5x06_register_write(tsdata,
+						  reg_addr->reg_offset_x, val);
 		tsdata->offset_x = val;
 	}
 
 	error = device_property_read_u32(dev, "offset-y", &val);
 	if (!error) {
-		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_y, val);
+		if (reg_addr->reg_offset_y != NO_REGISTER)
+			edt_ft5x06_register_write(tsdata,
+						  reg_addr->reg_offset_y, val);
 		tsdata->offset_y = val;
 	}
 }
-- 
2.20.1


  reply	other threads:[~2020-02-27 11:28 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-27 11:28 [PATCH 0/4] EDT-FT5x06 Fixes and improvments Marco Felsch
2020-02-27 11:28 ` Marco Felsch [this message]
2020-05-09 19:05   ` [PATCH 1/4] Input: edt-ft5x06 - fix get_default register write access Dmitry Torokhov
2020-05-10 11:06     ` Marco Felsch
2020-05-11 17:53       ` Dmitry Torokhov
2020-05-12 17:01         ` Marco Felsch
2020-02-27 11:28 ` [PATCH 2/4] Input: edt-ft5x06 - move parameter restore into helper Marco Felsch
2020-05-09 19:06   ` Dmitry Torokhov
2020-02-27 11:28 ` [PATCH 3/4] Input: edt-ft5x06 - improve power management operations Marco Felsch
2020-05-09 21:21   ` Dmitry Torokhov
2020-02-27 11:28 ` [PATCH 4/4] Input: edt-ft5x06 - prefer asynchronous probe Marco Felsch
2020-05-09 21:28   ` Dmitry Torokhov
2020-03-09  6:44 ` [PATCH 0/4] EDT-FT5x06 Fixes and improvments Marco Felsch
2020-03-31  7:50   ` Marco Felsch
2020-05-08  8:22     ` Marco Felsch

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