event: Correct dependencies on the EVENT framework

The event framework is just that, a framework. Enabling it by itself
does nothing, so we shouldn't ask the user about it. Reword (and correct
typos) around this the option and help text. This also applies to
DM_EVENT and EVENT_DYNAMIC. Only EVENT_DEBUG and CMD_EVENT should be
visible to the user to select, when EVENT is selected.

With this, it's time to address the larger problems. When functionality
uses events, typically via EVENT_SPY, the appropriate framework then
must be select'd and NOT imply'd. As the functionality will cease to
work (and so, platforms will fail to boot) this is non-optional and
where select is appropriate. Audit the current users of EVENT_SPY to
have a more fine-grained approach to select'ing the framework where
used. Also ensure the current users of event_register and also select
EVENT_DYNAMIC.

Cc: AKASHI Takahiro <[email protected]>
Cc: Heinrich Schuchardt <[email protected]>
Reported-by: Oliver Graute <[email protected]>
Reported-by: Francesco Dolcini <[email protected]>
Fixes: 7fe32b3442f0 ("event: Convert arch_cpu_init_dm() to use events")
Fixes: 42fdcebf859f ("event: Convert misc_init_f() to use events")
Fixes: c5ef2025579e ("dm: fix DM_EVENT dependencies")
Signed-off-by: Tom Rini <[email protected]>
Tested-by: Simon Glass <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Fabio Estevam <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/cmd/Kconfig b/cmd/Kconfig
index b2aefae9cb7..4fe2c75de25 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -2622,6 +2622,7 @@ config CMD_DIAG
 
 config CMD_EVENT
 	bool "event - Show information about events"
+	depends on EVENT
 	default y if EVENT_DEBUG
 	help
 	  This enables the 'event' command which provides information about