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From: Paul Fertser <fercerpav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org
Cc: Paul Fertser <fercerpav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Marc Dietrich <marvin24-Mmb7MZpHnFY@public.gmane.org>,
	Greg Kroah-Hartman
	<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
	ac100-oU9gvf+ajcQ97yFScArB1dHuzzzSOjJt@public.gmane.org,
	linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] Revert "staging: nvec: ps2: change serio type to passthrough"
Date: Tue, 25 Oct 2016 15:10:55 +0300	[thread overview]
Message-ID: <1477397482-31087-1-git-send-email-fercerpav@gmail.com> (raw)

This reverts commit 36b30d6138f4677514aca35ab76c20c1604baaad.

This is necessary to detect paz00 (ac100) touchpad properly as one
speaking ETPS/2 protocol. Without it X.org's synaptics driver doesn't
work as the touchpad is detected as an ImPS/2 mouse instead.

Commit ec6184b1c717b8768122e25fe6d312f609cc1bb4 changed the way
auto-detection is performed on ports marked as pass through and made the
issue apparent.

A pass through port is an additional PS/2 port used to connect a slave
device to a master device that is using PS/2 to communicate with the
host (so slave's PS/2 communication is tunneled over master's PS/2
link). "Synaptics PS/2 TouchPad Interfacing Guide" describes such a
setup (PS/2 PASS-THROUGH OPTION section).

Since paz00's embedded controller is not connected to a PS/2 port
itself, the PS/2 interface it exposes is not a pass-through one.

Acked-by: Marc Dietrich <marvin24-Mmb7MZpHnFY@public.gmane.org>
Signed-off-by: Paul Fertser <fercerpav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/staging/nvec/nvec_ps2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index a324322..c83eeb4 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -112,7 +112,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
 	if (!ser_dev)
 		return -ENOMEM;
 
-	ser_dev->id.type = SERIO_PS_PSTHRU;
+	ser_dev->id.type = SERIO_8042;
 	ser_dev->write = ps2_sendcommand;
 	ser_dev->start = ps2_startstreaming;
 	ser_dev->stop = ps2_stopstreaming;
-- 
2.7.0

WARNING: multiple messages have this Message-ID (diff)
From: Paul Fertser <fercerpav@gmail.com>
To: devel@driverdev.osuosl.org
Cc: Paul Fertser <fercerpav@gmail.com>,
	Marc Dietrich <marvin24@gmx.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	ac100@lists.launchpad.net, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] Revert "staging: nvec: ps2: change serio type to passthrough"
Date: Tue, 25 Oct 2016 15:10:55 +0300	[thread overview]
Message-ID: <1477397482-31087-1-git-send-email-fercerpav@gmail.com> (raw)

This reverts commit 36b30d6138f4677514aca35ab76c20c1604baaad.

This is necessary to detect paz00 (ac100) touchpad properly as one
speaking ETPS/2 protocol. Without it X.org's synaptics driver doesn't
work as the touchpad is detected as an ImPS/2 mouse instead.

Commit ec6184b1c717b8768122e25fe6d312f609cc1bb4 changed the way
auto-detection is performed on ports marked as pass through and made the
issue apparent.

A pass through port is an additional PS/2 port used to connect a slave
device to a master device that is using PS/2 to communicate with the
host (so slave's PS/2 communication is tunneled over master's PS/2
link). "Synaptics PS/2 TouchPad Interfacing Guide" describes such a
setup (PS/2 PASS-THROUGH OPTION section).

Since paz00's embedded controller is not connected to a PS/2 port
itself, the PS/2 interface it exposes is not a pass-through one.

Acked-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
---
 drivers/staging/nvec/nvec_ps2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c
index a324322..c83eeb4 100644
--- a/drivers/staging/nvec/nvec_ps2.c
+++ b/drivers/staging/nvec/nvec_ps2.c
@@ -112,7 +112,7 @@ static int nvec_mouse_probe(struct platform_device *pdev)
 	if (!ser_dev)
 		return -ENOMEM;
 
-	ser_dev->id.type = SERIO_PS_PSTHRU;
+	ser_dev->id.type = SERIO_8042;
 	ser_dev->write = ps2_sendcommand;
 	ser_dev->start = ps2_startstreaming;
 	ser_dev->stop = ps2_stopstreaming;
-- 
2.7.0

             reply	other threads:[~2016-10-25 12:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-25 12:10 Paul Fertser [this message]
2016-10-25 12:10 ` [PATCH] Revert "staging: nvec: ps2: change serio type to passthrough" Paul Fertser
2016-10-25 12:24 ` Marc Dietrich
2016-10-25 12:24   ` Marc Dietrich
2016-10-27 13:55   ` [PATCH] drivers: staging: nvec: remove bogus reset command for PS/2 interface Paul Fertser
2016-10-27 13:59     ` Marc Dietrich

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