linux-kernel - Re: [PATCH] remoteproc: qcom: Introduce Hexagon V5 based WCSS driver

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Date:   Tue, 5 Jun 2018 22:10:31 +0530
From:   Vinod Koul <vinod.koul@...aro.org>
To:     Sricharan R <sricharan@...eaurora.org>
Cc:     bjorn.andersson@...aro.org, ohad@...ery.com, robh+dt@...nel.org,
        mark.rutland@....com, andy.gross@...aro.org,
        david.brown@...aro.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        sibis@...eaurora.org
Subject: Re: [PATCH] remoteproc: qcom: Introduce Hexagon V5 based WCSS driver

On 05-06-18, 18:26, Sricharan R wrote:
> Hi Vinod,
> 
> On 6/5/2018 11:49 AM, Vinod wrote:
> > On 05-06-18, 11:12, Sricharan R wrote:
> > 
> >> +config QCOM_Q6V5_WCSS
> >> +	tristate "Qualcomm Hexagon based WCSS Peripheral Image Loader"
> >> +	depends on OF && ARCH_QCOM
> >> +	depends on QCOM_SMEM
> >> +	depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
> >> +	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> > 
> > Is there a reason why it depends on RPMSG_QCOM_GLINK_SMEM=n? What would
> > happen if distro wants both this and RPMSG_QCOM_GLINK_SMEM
> > 
>   RPMSG_QCOM_GLINK_SMEM=n should be for the COMPILE_TEST. Probably that

why would that be a limitation? I am more worried about
RPMSG_QCOM_GLINK_SMEM=n being the condition here. In new drivers we
should not typically have dependency on some symbol being not there

>   means that it should be corrected here and for ADSP, Q6V5_PIL as well.
>   Bjorn, is that correct ?, should it be, below ?
>  
>   depends on (RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)) || (RPMSG_QCOM_GLINK_SMEM || (COMPILE_TEST && RPMSG_QCOM_GLINK_SMEM=n))

that doesnt really sound good :(

-- 
~Vinod