From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Subject: Re: [PATCH] remoteproc: qcom: Introduce Hexagon V5 based WCSS driver Date: Wed, 6 Jun 2018 12:19:09 +0530 Message-ID: <20180606064909.GC16230@vkoul-mobl> References: <1528177361-8883-1-git-send-email-sricharan@codeaurora.org> <20180605061919.GQ16230@vkoul-mobl> <3a4c102b-7228-153a-c588-b1bf00291fa8@codeaurora.org> <20180605164031.GZ16230@vkoul-mobl> <1b376fc2-6a1b-1457-ffff-332954d1bef8@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1b376fc2-6a1b-1457-ffff-332954d1bef8@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org To: Sricharan R Cc: bjorn.andersson@linaro.org, ohad@wizery.com, robh+dt@kernel.org, mark.rutland@arm.com, andy.gross@linaro.org, david.brown@linaro.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, sibis@codeaurora.org List-Id: devicetree@vger.kernel.org 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.. > >> 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. -- ~Vinod