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authorTony Lindgren <tony@atomide.com>2020-03-14 13:55:05 -0700
committerTony Lindgren <tony@atomide.com>2020-03-17 10:01:03 -0700
commit4abd9930d189dedaa59097144c6d8f623342fa72 (patch)
treeb998fe083a43e7ae7fae32ffdbdcbd691e641b7e /drivers/bus
parentcfb5d65f25959f724081bae8445a0241db606af6 (diff)
ARM: dts: omap4-droid4: Fix lost touchscreen interrupts
Looks like we can have the maxtouch touchscreen stop producing interrupts if an edge interrupt is lost. This can happen easily when the SoC idles as the gpio controller may not see any state for an edge interrupt if it is briefly triggered when the system is idle. Also it looks like maxtouch stops sending any further interrupts if the interrupt is not handled. And we do have several cases of maxtouch already configured with a level interrupt, so let's do that. With level interrupt the gpio controller has the interrupt state visible after idle. Note that eventually we will probably also be using the Linux generic wakeirq configured for the controller, but that cannot be done until the maxtouch driver supports runtime PM. Cc: maemo-leste@lists.dyne.org Cc: Arthur Demchenkov <spinal.by@gmail.com> Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> Cc: Merlijn Wajer <merlijn@wizzup.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
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