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 <takahiro.akashi@linaro.org>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reported-by: Oliver Graute <Oliver.Graute@kococonnector.com>
Reported-by: Francesco Dolcini <francesco.dolcini@toradex.com>
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 <trini@konsulko.com>
Tested-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Fabio Estevam <festevam@denx.de>

10 files changed, 17 insertions, 9 deletions

diff --git a/arch/Kconfig b/arch/Kconfig
index 8fb87b7d85..d30676ae81 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -93,7 +93,7 @@ config NIOS2
 	bool "Nios II architecture"
 	select CPU
 	select DM
-	imply DM_EVENT
+	select DM_EVENT
 	select OF_CONTROL
 	select SUPPORT_OF_CONTROL
 	imply CMD_DM
@@ -111,9 +111,9 @@ config RISCV
 	select SUPPORT_OF_CONTROL
 	select OF_CONTROL
 	select DM
+	select DM_EVENT
 	imply SPL_SEPARATE_BSS if SPL
 	imply DM_SERIAL
-	imply DM_EVENT
 	imply DM_MMC
 	imply DM_SPI
 	imply DM_SPI_FLASH
@@ -136,6 +136,7 @@ config SANDBOX
 	select BZIP2
 	select CMD_POWEROFF
 	select DM
+	select DM_EVENT
 	select DM_FUZZING_ENGINE
 	select DM_GPIO
 	select DM_I2C
@@ -240,7 +241,6 @@ config X86
 	imply CMD_SF
 	imply CMD_SF_TEST
 	imply CMD_ZBOOT
-	imply DM_EVENT
 	imply DM_GPIO
 	imply DM_KEYBOARD
 	imply DM_MMC
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index bbf1d5227b..c9a44ebc22 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -778,7 +778,6 @@ config ARCH_OMAP2PLUS
 	select SUPPORT_SPL
 	imply TI_SYSC if DM && OF_CONTROL
 	imply FIT
-	imply DM_EVENT
 	imply SPL_SEPARATE_BSS
 
 config ARCH_MESON
@@ -823,11 +822,11 @@ config ARCH_IMX8
 	select SYS_FSL_SEC_COMPAT_4
 	select SYS_FSL_SEC_LE
 	select DM
+	select DM_EVENT
 	select GPIO_EXTRA_HEADER
 	select MACH_IMX
 	select OF_CONTROL
 	select ENABLE_ARM_SOC_BOOT0_HOOK
-	imply DM_EVENT
 
 config ARCH_IMX8M
 	bool "NXP i.MX8M platform"
@@ -839,14 +838,15 @@ config ARCH_IMX8M
 	select SYS_FSL_SEC_LE
 	select SYS_I2C_MXC
 	select DM
+	select DM_EVENT if CLK
 	select SUPPORT_SPL
 	imply CMD_DM
-	imply DM_EVENT
 
 config ARCH_IMX8ULP
 	bool "NXP i.MX8ULP platform"
 	select ARM64
 	select DM
+	select DM_EVENT
 	select MACH_IMX
 	select OF_CONTROL
 	select SUPPORT_SPL
@@ -854,19 +854,18 @@ config ARCH_IMX8ULP
 	select MISC
 	select IMX_SENTINEL
 	imply CMD_DM
-	imply DM_EVENT
 
 config ARCH_IMX9
 	bool "NXP i.MX9 platform"
 	select ARM64
 	select DM
+	select DM_EVENT
 	select MACH_IMX
 	select SUPPORT_SPL
 	select GPIO_EXTRA_HEADER
 	select MISC
 	select IMX_SENTINEL
 	imply CMD_DM
-	imply DM_EVENT
 
 config ARCH_IMXRT
 	bool "NXP i.MXRT platform"
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 1db71df272..309b967b0d 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -31,6 +31,7 @@ config OMAP34XX
 
 config OMAP44XX
 	bool "OMAP44XX SoC"
+	select DM_EVENT
 	select SPL_USE_TINY_PRINTF
 	select SPL_SYS_NO_VECTOR_TABLE if SPL
 	imply NAND_OMAP_ELM
@@ -55,6 +56,7 @@ config OMAP54XX
 	bool "OMAP54XX SoC"
 	select ARM_CORTEX_A15_CVE_2017_5715
 	select ARM_ERRATA_798870
+	select DM_EVENT
 	select SYS_THUMB_BUILD
 	imply NAND_OMAP_ELM
 	imply NAND_OMAP_GPMC
@@ -111,6 +113,7 @@ config AM43XX
 config AM33XX
 	bool "AM33XX SoC"
 	select ARM_CORTEX_A8_CVE_2017_5715
+	select DM_EVENT
 	select SPECIFY_CONSOLE_INDEX
 	imply NAND_OMAP_ELM
 	imply NAND_OMAP_GPMC
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 23142bd270..569f5f48bc 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -121,6 +121,7 @@ config MACH_PIC32
 	bool "Support Microchip PIC32"
 	select HAS_FIXED_TIMER_FREQUENCY
 	select DM
+	select DM_EVENT
 	select OF_CONTROL
 	imply CMD_DM
 
@@ -128,7 +129,6 @@ config TARGET_BOSTON
 	bool "Support Boston"
 	select HAS_FIXED_TIMER_FREQUENCY
 	select DM
-	imply DM_EVENT
 	select DM_SERIAL
 	select MIPS_CM
 	select SYS_CACHE_SHIFT_6
diff --git a/arch/powerpc/cpu/mpc85xx/Kconfig b/arch/powerpc/cpu/mpc85xx/Kconfig
index 1b180481a4..2c54a9e212 100644
--- a/arch/powerpc/cpu/mpc85xx/Kconfig
+++ b/arch/powerpc/cpu/mpc85xx/Kconfig
@@ -248,6 +248,7 @@ config TARGET_KMP204X
 config TARGET_KMCENT2
 	bool "Support kmcent2"
 	select VENDOR_KM
+	select EVENT
 	select FSL_CORENET
 	select SYS_DPAA_FMAN
 	select SYS_DPAA_PME
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 93f1c77be3..07be5cd05e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -395,6 +395,7 @@ config FSP_VERSION1
 
 config FSP_VERSION2
 	bool "FSP version 2.x"
+	select DM_EVENT
 	help
 	  This covers versions 2.0 and 2.1. See here for details:
 	  https://github.com/IntelFsp/fsp/wiki
diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig
index d2c3473d6a..a8efea8a34 100644
--- a/arch/x86/cpu/baytrail/Kconfig
+++ b/arch/x86/cpu/baytrail/Kconfig
@@ -7,6 +7,7 @@ config INTEL_BAYTRAIL
 	select HAVE_FSP
 	select ARCH_MISC_INIT
 	select CPU_INTEL_TURBO_NOT_PACKAGE_SCOPED
+	select DM_EVENT
 	imply HAVE_INTEL_ME
 	imply ENABLE_MRC_CACHE
 	imply AHCI_PCI
diff --git a/arch/x86/cpu/broadwell/Kconfig b/arch/x86/cpu/broadwell/Kconfig
index 5b015c89d9..39deda3644 100644
--- a/arch/x86/cpu/broadwell/Kconfig
+++ b/arch/x86/cpu/broadwell/Kconfig
@@ -6,6 +6,7 @@
 config INTEL_BROADWELL
 	bool
 	select CACHE_MRC_BIN
+	select DM_EVENT
 	select ARCH_EARLY_INIT_R
 	imply HAVE_INTEL_ME
 	imply ENABLE_MRC_CACHE
diff --git a/arch/x86/cpu/ivybridge/Kconfig b/arch/x86/cpu/ivybridge/Kconfig
index be3ef5e5d8..704f145adf 100644
--- a/arch/x86/cpu/ivybridge/Kconfig
+++ b/arch/x86/cpu/ivybridge/Kconfig
@@ -8,6 +8,7 @@
 config NORTHBRIDGE_INTEL_IVYBRIDGE
 	bool
 	select CACHE_MRC_BIN if HAVE_MRC
+	select DM_EVENT
 	imply HAVE_INTEL_ME
 	imply ENABLE_MRC_CACHE
 	imply AHCI_PCI
diff --git a/arch/x86/cpu/quark/Kconfig b/arch/x86/cpu/quark/Kconfig
index 61bb5792c8..0d4008a31f 100644
--- a/arch/x86/cpu/quark/Kconfig
+++ b/arch/x86/cpu/quark/Kconfig
@@ -7,6 +7,7 @@ config INTEL_QUARK
 	select HAVE_RMU
 	select ARCH_EARLY_INIT_R
 	select ARCH_MISC_INIT
+	select DM_EVENT
 	imply ENABLE_MRC_CACHE
 	imply ETH_DESIGNWARE
 	imply ICH_SPI