From: Dirk Behme <dirk.behme@de.bosch.com>
To: linux-input@vger.kernel.org,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Henrik Rydberg <rydberg@bitmath.org>,
Javier Martinez Canillas <javier@osg.samsung.com>
Cc: Oleksij Rempel <linux@rempel-privat.de>,
Oleksij Rempel <fixed-term.Oleksij.Rempel@de.bosch.com>,
Knut Wohlrab <Knut.Wohlrab@de.bosch.com>
Subject: [PATCH v2 2/4] Input: zforce_ts: Reject open if initialization not finished
Date: Tue, 3 May 2016 12:41:48 +0200 [thread overview]
Message-ID: <1462272110-24610-3-git-send-email-dirk.behme@de.bosch.com> (raw)
In-Reply-To: <1462272110-24610-1-git-send-email-dirk.behme@de.bosch.com>
From: Oleksij Rempel <linux@rempel-privat.de>
Response EAGAIN when open the device while BOOT_COMPLETE
notification is not received and initialization of the zForce touch
controller is not finished.
Signed-off-by: Oleksij Rempel <fixed-term.Oleksij.Rempel@de.bosch.com>
Signed-off-by: Knut Wohlrab <Knut.Wohlrab@de.bosch.com>
---
drivers/input/touchscreen/zforce_ts.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
index 9839d86..fc0edd6 100644
--- a/drivers/input/touchscreen/zforce_ts.c
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -690,6 +690,10 @@ static int zforce_input_open(struct input_dev *dev)
struct zforce_ts *ts = input_get_drvdata(dev);
int ret;
+ /* if not probed try again later */
+ if (ts->state == ZF_STATE_UNINITIALZED)
+ return -EAGAIN;
+
ret = zforce_start(ts);
if (ret)
return ret;
--
1.9.1
next prev parent reply other threads:[~2016-05-03 10:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-03 10:41 [PATCH v2 0/4] zForce upstreaming Dirk Behme
2016-05-03 10:41 ` [PATCH v2 1/4] Input: zforce_ts: Reinitialize touch controller when BOOT_COMPLETE received Dirk Behme
2016-05-03 10:41 ` Dirk Behme [this message]
2016-05-03 16:10 ` [PATCH v2 2/4] Input: zforce_ts: Reject open if initialization not finished Dmitry Torokhov
2016-05-03 10:41 ` [PATCH v2 3/4] Input: zforce_ts: Add device tree support for scanning frequency Dirk Behme
2016-05-03 10:41 ` [PATCH v2 4/4] Input: zforce_ts: Add support for minimum touch size limit Dirk Behme
2016-05-03 16:12 ` Dmitry Torokhov
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