* Arnd Bergmann <a...@arndb.de> [130624 07:25]:
> If we build a kernel with CONFIG_ARCH_OMAP2PLUS enabled but all of the
> individual SoCs disabled, we run into a large number of link errors
> because if incorrect dependencies:
> 
> arch/arm/mach-omap2/built-in.o: In function `_add_initiator_dep':
> arch/arm/mach-omap2/omap_hwmod.c:691: undefined reference to 
> `clkdm_add_sleepdep' arch/arm/mach-omap2/built-in.o: In function 
> `_del_initiator_dep':
> arch/arm/mach-omap2/omap_hwmod.c:720: undefined reference to 
> `clkdm_del_sleepdep' arch/arm/mach-omap2/built-in.o: In function `_enable':
> arch/arm/mach-omap2/omap_hwmod.c:2145: undefined reference to `clkdm_in_hwsup'
> arch/arm/mach-omap2/omap_hwmod.c:2147: undefined reference to 
> `clkdm_hwmod_enable'
> arch/arm/mach-omap2/omap_hwmod.c:2191: undefined reference to 
> `clkdm_hwmod_disable'
> arch/arm/mach-omap2/omap_hwmod.c:2146: undefined reference to 
> `clkdm_missing_idle_reporting' arch/arm/mach-omap2/built-in.o: In function 
> `_idle':
> arch/arm/mach-omap2/omap_hwmod.c:2235: undefined reference to 
> `clkdm_hwmod_disable' arch/arm/mach-omap2/built-in.o: In function `_shutdown':
> arch/arm/mach-omap2/omap_hwmod.c:2338: undefined reference to 
> `clkdm_hwmod_disable' arch/arm/mach-omap2/built-in.o: In function 
> `omap_hwmod_get_context_loss_count':
> arch/arm/mach-omap2/omap_hwmod.c:4071: undefined reference to 
> `pwrdm_get_context_loss_count' arch/arm/mach-omap2/built-in.o: In function 
> `omap_pm_clkdms_setup':
> arch/arm/mach-omap2/pm.c:114: undefined reference to `clkdm_allow_idle'
> arch/arm/mach-omap2/pm.c:117: undefined reference to `clkdm_sleep' 
> arch/arm/mach-omap2/built-in.o: In function `omap2_common_pm_late_init':
> arch/arm/mach-omap2/pm.c:294: undefined reference to `omap_voltage_late_init' 
> arch/arm/mach-omap2/built-in.o: In function `omap2_gpio_dev_init':
> arch/arm/mach-omap2/gpio.c:133: undefined reference to 
> `pwrdm_can_ever_lose_context'
> 
> We can avoid this if we make CONFIG_ARCH_OMAP2PLUS a silent option that
> gets enabled any time that one of the SoC versions is enabled.

/me hopes this does the trick finally ;)

I could not apply this to anything I tried though..
Which branch is this against?

Regards,

Tony

 
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
> Cc: Tony Lindgren <t...@atomide.com>
> 
> diff --git a/arch/arm/configs/omap2plus_defconfig 
> b/arch/arm/configs/omap2plus_defconfig
> index abbe319..197a0bb 100644
> --- a/arch/arm/configs/omap2plus_defconfig
> +++ b/arch/arm/configs/omap2plus_defconfig
> @@ -22,6 +22,10 @@ CONFIG_MODULE_SRCVERSION_ALL=y
>  # CONFIG_BLK_DEV_BSG is not set
>  CONFIG_ARCH_MULTI_V6=y
>  CONFIG_ARCH_OMAP2PLUS=y
> +CONFIG_ARCH_OMAP2=y
> +CONFIG_ARCH_OMAP3=y
> +CONFIG_ARCH_OMAP4=y
> +CONFIG_SOC_AM33XX=y
>  CONFIG_OMAP_RESET_CLOCKS=y
>  CONFIG_OMAP_MUX_DEBUG=y
>  CONFIG_ARCH_VEXPRESS_CA9X4=y
> diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
> index 1bfe9ee..a07cdc9 100644
> --- a/arch/arm/mach-omap2/Kconfig
> +++ b/arch/arm/mach-omap2/Kconfig
> @@ -1,61 +1,10 @@
>  config ARCH_OMAP
>       bool
>  
> -config ARCH_OMAP2PLUS
> -     bool "TI OMAP2/3/4/5 SoCs with device tree support" if (ARCH_MULTI_V6 
> || ARCH_MULTI_V7)
> -     select ARCH_HAS_CPUFREQ
> -     select ARCH_HAS_HOLES_MEMORYMODEL
> -     select ARCH_OMAP
> -     select ARCH_REQUIRE_GPIOLIB
> -     select CLKDEV_LOOKUP
> -     select CLKSRC_MMIO
> -     select GENERIC_CLOCKEVENTS
> -     select GENERIC_IRQ_CHIP
> -     select HAVE_CLK
> -     select OMAP_DM_TIMER
> -     select PINCTRL
> -     select PROC_DEVICETREE if PROC_FS
> -     select SOC_BUS
> -     select SPARSE_IRQ
> -     select USE_OF
> -     help
> -       Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
> -
> -
> -if ARCH_OMAP2PLUS
> -
> -menu "TI OMAP2/3/4 Specific Features"
> -
> -config ARCH_OMAP2PLUS_TYPICAL
> -     bool "Typical OMAP configuration"
> -     default y
> -     select AEABI
> -     select HIGHMEM
> -     select I2C
> -     select I2C_OMAP
> -     select MENELAUS if ARCH_OMAP2
> -     select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5
> -     select PM_RUNTIME
> -     select REGULATOR
> -     select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
> -     select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
> -     select VFP
> -     help
> -       Compile a kernel suitable for booting most boards
> -
> -config SOC_HAS_OMAP2_SDRC
> -     bool "OMAP2 SDRAM Controller support"
> -
> -config SOC_HAS_REALTIME_COUNTER
> -     bool "Real time free running counter"
> -     depends on SOC_OMAP5
> -     default y
> -
>  config ARCH_OMAP2
>       bool "TI OMAP2"
> -     depends on ARCH_OMAP2PLUS
>       depends on ARCH_MULTI_V6
> -     default y
> +     select ARCH_OMAP2PLUS
>       select CPU_V6
>       select MULTI_IRQ_HANDLER
>       select SOC_HAS_OMAP2_SDRC
> @@ -63,9 +12,8 @@ config ARCH_OMAP2
>  
>  config ARCH_OMAP3
>       bool "TI OMAP3"
> -     depends on ARCH_OMAP2PLUS
>       depends on ARCH_MULTI_V7
> -     default y
> +     select ARCH_OMAP2PLUS
>       select ARCH_HAS_OPP
>       select ARM_CPU_SUSPEND if PM
>       select CPU_V7
> @@ -79,9 +27,8 @@ config ARCH_OMAP3
>  
>  config ARCH_OMAP4
>       bool "TI OMAP4"
> -     default y
> -     depends on ARCH_OMAP2PLUS
>       depends on ARCH_MULTI_V7
> +     select ARCH_OMAP2PLUS
>       select ARCH_HAS_OPP
>       select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
>       select ARM_CPU_SUSPEND if PM
> @@ -106,6 +53,7 @@ config ARCH_OMAP4
>  config SOC_OMAP5
>       bool "TI OMAP5"
>       depends on ARCH_MULTI_V7
> +     select ARCH_OMAP2PLUS
>       select ARM_CPU_SUSPEND if PM
>       select ARM_GIC
>       select CPU_V7
> @@ -113,6 +61,76 @@ config SOC_OMAP5
>       select COMMON_CLK
>       select HAVE_ARM_ARCH_TIMER
>  
> +config SOC_AM33XX
> +     bool "AM33XX support"
> +     depends on ARCH_MULTI_V7
> +     select ARCH_OMAP2PLUS
> +     select ARM_CPU_SUSPEND if PM
> +     select CPU_V7
> +     select MULTI_IRQ_HANDLER
> +     select COMMON_CLK
> +
> +config SOC_AM43XX
> +     bool "TI AM43x"
> +     depends on ARCH_MULTI_V7
> +     select CPU_V7
> +     select ARCH_OMAP2PLUS
> +     select MULTI_IRQ_HANDLER
> +     select ARM_GIC
> +     select COMMON_CLK
> +     select MACH_OMAP_GENERIC
> +
> +config ARCH_OMAP2PLUS
> +     bool
> +     select ARCH_HAS_BANDGAP
> +     select ARCH_HAS_CPUFREQ
> +     select ARCH_HAS_HOLES_MEMORYMODEL
> +     select ARCH_OMAP
> +     select ARCH_REQUIRE_GPIOLIB
> +     select CLKDEV_LOOKUP
> +     select CLKSRC_MMIO
> +     select GENERIC_CLOCKEVENTS
> +     select GENERIC_IRQ_CHIP
> +     select HAVE_CLK
> +     select OMAP_DM_TIMER
> +     select PINCTRL
> +     select PROC_DEVICETREE if PROC_FS
> +     select SOC_BUS
> +     select SPARSE_IRQ
> +     select USE_OF
> +     help
> +       Systems based on OMAP2, OMAP3, OMAP4 or OMAP5
> +
> +
> +if ARCH_OMAP2PLUS
> +
> +menu "TI OMAP2/3/4 Specific Features"
> +
> +config ARCH_OMAP2PLUS_TYPICAL
> +     bool "Typical OMAP configuration"
> +     default y
> +     select AEABI
> +     select HIGHMEM
> +     select I2C
> +     select I2C_OMAP
> +     select MENELAUS if ARCH_OMAP2
> +     select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5
> +     select PM_RUNTIME
> +     select REGULATOR
> +     select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
> +     select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
> +     select VFP
> +     help
> +       Compile a kernel suitable for booting most boards
> +
> +config SOC_HAS_OMAP2_SDRC
> +     bool "OMAP2 SDRAM Controller support"
> +
> +config SOC_HAS_REALTIME_COUNTER
> +     bool "Real time free running counter"
> +     depends on SOC_OMAP5
> +     default y
> +
>  comment "OMAP Core Type"
>       depends on ARCH_OMAP2
>  
> @@ -140,23 +158,6 @@ config SOC_TI81XX
>       depends on ARCH_OMAP3
>       default y
>  
> -config SOC_AM33XX
> -     bool "AM33XX support"
> -     depends on ARCH_MULTI_V7
> -     default y
> -     select ARM_CPU_SUSPEND if PM
> -     select CPU_V7
> -     select MULTI_IRQ_HANDLER
> -     select COMMON_CLK
> -
> -config SOC_AM43XX
> -     bool "TI AM43x"
> -     select CPU_V7
> -     select MULTI_IRQ_HANDLER
> -     select ARM_GIC
> -     select COMMON_CLK
> -     select MACH_OMAP_GENERIC
> -
>  config OMAP_PACKAGE_ZAF
>         bool
>  
> 
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