linux-kernel - Re: [PATCH 1/3] ARM: dts: qcom: Add SPMI PMIC Arbiter nodes for APQ8084 and MSM8974

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20180831230125.GU2523@minitux>
Date:   Fri, 31 Aug 2018 16:01:25 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Frank Rowand <frowand.list@...il.com>
Cc:     "Ivan T. Ivanov" <iivanov@...sol.com>,
        Rob Herring <robh+dt@...nel.org>,
        Pawel Moll <pawel.moll@....com>,
        Mark Rutland <mark.rutland@....com>,
        Ian Campbell <ijc+devicetree@...lion.org.uk>,
        Kumar Gala <galak@...eaurora.org>,
        Russell King <linux@....linux.org.uk>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 1/3] ARM: dts: qcom: Add SPMI PMIC Arbiter nodes for
 APQ8084 and MSM8974

On Fri 31 Aug 15:46 PDT 2018, Frank Rowand wrote:
> > +		spmi_bus: spmi@...cf000 {
> > +			compatible = "qcom,spmi-pmic-arb";
> > +			reg-names = "core", "intr", "cnfg";
> > +			reg = <0xfc4cf000 0x1000>,
> > +			      <0xfc4cb000 0x1000>,
> > +			      <0xfc4ca000 0x1000>;
> > +			interrupt-names = "periph_irq";
> 
> > +			interrupts = <0 190 0>;
> 
> The final value in this interrupts property means IRQ_TYPE_NONE.
> 
> A WARN_ON() was added early this year to complain about use of
> IRQ_TYPE_NONE: 83a86fbb5b56 "irqchip/gic: Loudly complain about
> the use of IRQ_TYPE_NONE", resulting in many warnings spewing
> forth when I boot an APQ8074 Dragonboard.  I am trying to
> determine whether the warning is overly aggressive, or whether
> the IRQ TYPE is incorrectly specified for the spmi node.
> 
> The interrupt-parent for the spmi node is intc: interrupt-controller@...00000,
> which has compatible = "qcom,msm-qgic2".  I do not know the architecture
> or implementation of this interrupt controller.  Is an IRQ_TYPE_NONE
> valid in this case, or should a specific type be provided?
> 

No, IRQ_TYPE_NONE isn't valid and the WARN_ON() is reasonable.

Please change it to IRQ_TYPE_LEVEL_HIGH. And while you're at it, replace
the first 0 with GIC_SPI.


If you have more of these warnings you can most likely look at e.g.
msm8916 (arm64) to find the right flags.

Regards,
Bjorn