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Date: Fri, 25 Mar 2016 21:26:12 -0500
From: Andy Gross <andy.gross@linaro.org>
To: Bjorn Andersson <bjorn@kryo.se>
Cc: Sricharan R <sricharan@codeaurora.org>, Wolfram Sang <wsa@the-dreams.de>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        linux-arm-msm <linux-arm-msm@vger.kernel.org>,
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        Kumar Gala <galak@codeaurora.org>, dmaengine@vger.kernel.org,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        ntelkar@codeaurora.org, Archit Taneja <architt@codeaurora.org>
Subject: Re: [PATCH V7 5/6] dts: msm8974: Add blsp2_bam dma node
Message-ID: <20160326022612.GA3764@hector.attlocal.net>
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On Fri, Mar 25, 2016 at 04:17:30PM -0700, Bjorn Andersson wrote:
> On Tue, Jan 19, 2016 at 2:02 AM, Sricharan R <sricharan@codeaurora.org> wrote:
> > Signed-off-by: Sricharan R <sricharan@codeaurora.org>
> > Reviewed-by: Andy Gross <andy.gross@linaro.org>

<snip>

> > +               blsp2_dma: dma-controller@f9944000 {
> > +                       compatible = "qcom,bam-v1.4.0";
> > +                       reg = <0xf9944000 0x19000>;
> > +                       interrupts = <GIC_SPI 239 IRQ_TYPE_LEVEL_HIGH>;
> > +                       clocks = <&gcc GCC_BLSP2_AHB_CLK>;
> > +                       clock-names = "bam_clk";
> > +                       #dma-cells = <1>;
> > +                       qcom,ee = <0>;
> 
> Without "qcom,bam_ctrl_remote;" and
> https://patchwork.kernel.org/patch/8639181/ the Xperia Honami board
> fails to boot with this patch included.

Ouch.  At least one set of pipes must be used by some other processor and TZ has
locked down that BLSP.