On Thu, Jul 07, 2016 at 12:35:02PM -0600, Stephen Warren wrote: > On 07/07/2016 12:13 PM, Sivaram Nair wrote: > >On Tue, Jul 05, 2016 at 05:04:22PM +0800, Joseph Lo wrote: > >>Add DT binding for the Hardware Synchronization Primitives (HSP). The > >>HSP is designed for the processors to share resources and communicate > >>together. It provides a set of hardware synchronization primitives for > >>interprocessor communication. So the interprocessor communication (IPC) > >>protocols can use hardware synchronization primitive, when operating > >>between two processors not in an SMP relationship. > > >>diff --git a/include/dt-bindings/mailbox/tegra186-hsp.h > >>b/include/dt-bindings/mailbox/tegra186-hsp.h > > >>+#define HSP_MBOX_TYPE_DB 0x0 > >>+#define HSP_MBOX_TYPE_SM 0x1 > >>+#define HSP_MBOX_TYPE_SS 0x2 > >>+#define HSP_MBOX_TYPE_AS 0x3 > >>+ > >>+#define HSP_DB_MASTER_CCPLEX 17 > >>+#define HSP_DB_MASTER_BPMP 19 > >>+ > >>+#define HSP_MBOX_ID(type, ID) \ > >>+ (HSP_MBOX_TYPE_##type << 16 | ID) > > > >It will be nicer if you avoid the macro glue magic '##' for 'type'. I > >would also suggest to use braces around 'type' and 'ID'. > > This technique been used without issue in quite a few other places > without issue, and has the benefit of simplifying the text wherever > the macro is used. What issue do you foresee?
It improves readability where HSP_MBOX_ID is used (in tegra186.dtsi file in this case) - but consider this as a cosmetic comment. > > BTW, if this patch does need reposting, I'd suggest s/ID/id/ since > macro parameters are usually lower-case.
