Messages in this thread | | | Subject | Re: [PATCH] remoteproc: qcom: Introduce Hexagon V5 based WCSS driver | From | Sricharan R <> | Date | Wed, 6 Jun 2018 15:21:17 +0530 |
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Hi Vinod,
On 6/6/2018 12:19 PM, Vinod wrote: > Hi Sricharan, > > On 06-06-18, 12:09, 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 >> >> Without that, if RPMSG_QCOM_GLINK_SMEM=m is compiled as a module, then >> it would break the build. > > Okay I do not know the details, but that doesn't sound correct to me. > Breaking build sounds a bit extreme to me. Can you give details on this > part.. >
Having, just, depends on RPMSG_QCOM_GLINK_SMEM || COMPILE_TEST, is going to break when RPMSG_QCOM_GLINK_SMEM=m and COMPILE_TEST=y. Hence the COMPILE_TEST && RPMSG_QCOM_GLINK_SMEM=n.
Having said that, COMPILE_TEST is getting tested for RPMSG_QCOM_SMD=n in the previous line. So that's the reason for not having it in below line for RPMSG_QCOM_GLINK_SMEM.
>>>> 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 :( >> >> Hmm, but i was thinking it should functionally depend on either SMD or GLINK and not both. > > If you are depedent upon a symbol provided by a module you should say > depends on. If a machine is not supposed to have both SMD or GLINK then > the driver will not get probed. >
This is where, i was thinking, it should be functional if either of SMD or GLINK is there, but should not require both.
Regards, Sricharan
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