Re: linux-next: manual merge of the arm-soc tree with the arm-perf tree

[Abhilash Kesavan]

Hi Stephen,

On Mon, Mar 23, 2015 at 6:03 AM, Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
> Hi all,
>
> Today's linux-next merge of the arm-soc tree got a conflict in
> drivers/bus/Kconfig between commit c9966c98697a ("arm-cci: Split the
> code for PMU vs driver support") from the arm-perf tree and commit
> 13fbf3c8d0f7 ("drivers: bus: Sort Kconfig entries alphabetically") from
> the arm-soc tree.
>
> I fixed it up (see below) and can carry the fix as necessary (no action
> is required).

Not sure if this has been reported elsewhere, but I am seeing core
boot-up failures on the exynos5420 with next-20150323 due to this.
Your conflict fix is missing the ARM_CCI symbol because of which the
CCI does not get enabled.

Suzuki, can you confirm ?

Regards,
Abhilash
>
> --
> Cheers,
> Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
>
> diff --cc drivers/bus/Kconfig
> index 79e297b1f221,7e9c2674af81..000000000000
> --- a/drivers/bus/Kconfig
> +++ b/drivers/bus/Kconfig
> @@@ -4,6 -4,21 +4,38 @@@
>
>   menu "Bus devices"
>
>  -config ARM_CCI
>  -      bool "ARM CCI driver support"
> ++config ARM_CCI400_PORT_CTRL
> ++      bool
> +       depends on ARM && OF && CPU_V7
> ++      select ARM_CCI400_COMMON
> +       help
>  -        Driver supporting the CCI cache coherent interconnect for ARM
>  -        platforms.
> ++        Low level power management driver for CCI400 cache coherent
> ++        interconnect for ARM platforms.
> ++
> ++config ARM_CCI400_PMU
> ++      bool "ARM CCI400 PMU support"
> ++      default y
> ++      depends on ARM || ARM64
> ++      depends on HW_PERF_EVENTS
> ++      select ARM_CCI400_COMMON
> ++      help
> ++        Support for PMU events monitoring on the ARM CCI cache coherent
> ++        interconnect.
> ++
> ++        If unsure, say Y
> ++
> ++config ARM_CCI400_COMMON
> ++      bool
> ++      select ARM_CCI
> +
> + config ARM_CCN
> +       bool "ARM CCN driver support"
> +       depends on ARM || ARM64
> +       depends on PERF_EVENTS
> +       help
> +         PMU (perf) driver supporting the ARM CCN (Cache Coherent Network)
> +         interconnect.
> +
>   config BRCMSTB_GISB_ARB
>         bool "Broadcom STB GISB bus arbiter"
>         depends on ARM || MIPS
>
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>
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