[PATCHv2] ARM: OMAP: build mach-omap code only if needed

[Tony Lindgren]

* Tony Lindgren <tony at atomide.com> [130625 00:34]:
> * Arnd Bergmann <arnd at 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?

Ping, do you have updated patche(s) available as we discussed on IRC?

Tony