From 97f3ee34b6725f9fa5431e91db3223a53e55761c Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 6 Jul 2015 12:54:22 -0600 Subject: dm: Add platform data advice and admonishment We should guide people more strongly towards device tree to avoid the proliferation of platform data structures. Add documentation to the driver model README, and also the platform data header file. Signed-off-by: Simon Glass --- include/dm/platdata.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/dm/platdata.h b/include/dm/platdata.h index fbc8a6b3ad..6f4f00140e 100644 --- a/include/dm/platdata.h +++ b/include/dm/platdata.h @@ -16,6 +16,10 @@ /** * struct driver_info - Information required to instantiate a device * + * NOTE: Avoid using this except in extreme circumstances, where device tree + * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is + * available). U-Boot's driver model uses device tree for configuration. + * * @name: Driver name * @platdata: Driver-specific platform data */ @@ -24,6 +28,11 @@ struct driver_info { const void *platdata; }; +/** + * NOTE: Avoid using these except in extreme circumstances, where device tree + * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is + * available). U-Boot's driver model uses device tree for configuration. + */ #define U_BOOT_DEVICE(__name) \ ll_entry_declare(struct driver_info, __name, driver_info) -- cgit v1.2.1