Messages in this thread | | | Subject | Re: [PATCH] staging: fsl-mc: bus: Drop warning | From | Matthias Brugger <> | Date | Fri, 15 Apr 2016 12:43:31 +0200 |
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On 15/04/16 00:57, Stuart Yoder wrote: > > >> -----Original Message----- >> From: Matthias Brugger [mailto:mbrugger@suse.com] >> Sent: Thursday, April 14, 2016 4:24 PM >> To: German.Rivera@freescale.com; gregkh@linuxfoundation.org >> Cc: Stuart Yoder <stuart.yoder@nxp.com>; Scott Wood <scott.wood@nxp.com>; agraf@suse.de; linux- >> kernel@vger.kernel.org; devel@driverdev.osuosl.org; mbrugger@suse.com >> Subject: [PATCH] staging: fsl-mc: bus: Drop warning >> >> When updating the irq_chip and msi_domain_ops, the code checkes for >> already present functions. >> When more then one ITS controller are present in the system, >> irq_chip and msi_domain_ops got already set and a warning is invoked. > > How can this situation happen? And what do you mean by > multiple ITS controllers? ...multiple instances of the GIC ITS > on an SoC? >
Yes, there are two arm,gic-v3-its defined in the FDT.
~ # ll /proc/device-tree/interrupt-controller@8010\,00000000/ total 0 -r--r--r-- 1 root root 4 Apr 15 12:31 #address-cells -r--r--r-- 1 root root 11 Apr 15 12:31 compatible drwxr-xr-x 2 root root 0 Apr 15 12:31 gic-its@8010,00020000 drwxr-xr-x 2 root root 0 Apr 15 12:31 gic-its@9010,00020000 -r--r--r-- 1 root root 4 Apr 15 12:31 #interrupt-cells -r--r--r-- 1 root root 0 Apr 15 12:31 interrupt-controller -r--r--r-- 1 root root 12 Apr 15 12:31 interrupts -r--r--r-- 1 root root 4 Apr 15 12:31 linux,phandle -r--r--r-- 1 root root 21 Apr 15 12:31 name -r--r--r-- 1 root root 4 Apr 15 12:31 phandle -r--r--r-- 1 root root 0 Apr 15 12:31 ranges -r--r--r-- 1 root root 4 Apr 15 12:31 #redistributor-regions -r--r--r-- 1 root root 48 Apr 15 12:31 reg -r--r--r-- 1 root root 4 Apr 15 12:31 #size-cells
Regards, Matthias
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