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From: valmiki <valmikibow@gmail.com>
To: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Cc: helgaas@kernel.org, marc.zyngier@arm.com, arnd@arndb.de,
	mark.rutland@arm.com
Subject: Need clarity on PCIe MSI interrupt in device tree
Date: Wed, 4 Jan 2017 08:47:43 +0530	[thread overview]
Message-ID: <2fea5a0c-7410-97fd-91d1-ae6a06ab1a52@gmail.com> (raw)

Hi,

I have confusion on MSI interrupt flags in PCIe documetation.

MSI interrupts are edge triggered, but i see some controllers use 
Ex:tegra <0 99 0x4>, here interrupt flags show 0x4 which means level 
sensitive as per include/dt-bindings/interrupt-controller/irq.h.

May i know why is it like this, why MSI depicted as level sensitive in 
device tree.

Regards,
valmiki

             reply	other threads:[~2017-01-04  3:17 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-04  3:17 valmiki [this message]
2017-01-04  8:29 ` Need clarity on PCIe MSI interrupt in device tree Marc Zyngier
2017-01-04 17:28   ` valmiki
2017-01-04 10:05 ` Mark Rutland
2017-01-04 17:29   ` valmiki
2017-01-04 17:39 ` Need clarity on MSI handling in RC driver valmiki
2017-01-04 17:46   ` Marc Zyngier
2017-01-06  2:30     ` valmiki

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