On Wed 06 Jun 21:11 PDT 2018, Vinod wrote: > On 06-06-18, 09:17, Bjorn Andersson wrote: > > On Tue 05 Jun 05:56 PDT 2018, 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 > > > > > > > > It says that QCOM_Q6V5_WCSS either must have a compatible state (i.e. > > builtin vs builtin, module vs builtin, but not builtin vs module) or > > that it's disabled, in which case we will hit the stub functions in > > qcom_glink.h. > > > > I.e. this prevents QCOM_Q6V5_WCSS to be compiled builtin when > > RPMSG_QCOM_GLINK_SMEM is module, as this would give us both stubs and > > the module. > > IIUC, you want to have QCOM_Q6V5_WCSS and RPMSG_QCOM_GLINK_SMEM as > modules or builtin > RPMSG_QCOM_SMD, RPMSG_QCOM_GLINK_SMEM and QCOM_Q6V5_WCSS are all tristate. > So, wouldn't Kconfig syntax something like where we say: > M if RPMSG_QCOM_GLINK_SMEM=m > bool if RPMSG_QCOM_GLINK_SMEM=y > If we ignore SMD for a while we have the following combinations: glink/wcss y y - valid y m - valid y n - valid m y - link failure (invalid) m m - valid m n - valid n y - valid (platform uses wcss, but not glink) n m - valid (-----"-----) n n - valid So to distill this we have the two valid cases: module/no if RPMSG_QCOM_GLINK_SMEM=m yes/module/no if RPMSG_QCOM_GLINK_SMEM=y and the way you express that in Kconfig is the somewhat awkward depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n > Which makes it clear that both these have to be same type? > They don't have to be of the same type, only of a compatible type. Regards, Bjorn -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
