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SubjectRe: [PATCH v12 2/3] ARM: EXYNOS: Change System MMU platform device definitions
On Thu, Mar 15, 2012 at 05:32:39PM +0900, Cho KyongHo wrote:
> Handling System MMUs with an identifier is not flexible to manage
> System MMU platform devices because of the following reasons:
> 1. A device driver which needs to handle System MMU must know the ID.
> 2. A System MMU may not present in some implementations of Exynos family.
> 3. Handling System MMU with IOMMU API does not require an ID.
>
> This patch is the result of removing ID of System MMUs.
> Instead, a device driver that needs to handle its System MMU must
> use IOMMU API while its descriptor of platform device is given.
>
> This patch also includes the following enhancements:
> - A System MMU device becomes a child if its power domain device.
> - clkdev
>
> Cc: Kukjin Kim <kgene.kim@samsung.com>
> Signed-off-by: KyongHo Cho <pullip.cho@samsung.com>
> ---
> arch/arm/mach-exynos/Kconfig | 10 +-
> arch/arm/mach-exynos/Makefile | 2 +-
> arch/arm/mach-exynos/clock-exynos4.c | 79 ++--
> arch/arm/mach-exynos/clock-exynos4.h | 2 +
> arch/arm/mach-exynos/clock-exynos4210.c | 11 +
> arch/arm/mach-exynos/clock-exynos4212.c | 28 ++-
> arch/arm/mach-exynos/clock-exynos5.c | 90 +++++
> arch/arm/mach-exynos/dev-sysmmu.c | 457 ++++++++++++----------
> arch/arm/mach-exynos/include/mach/irqs.h | 25 +-
> arch/arm/mach-exynos/include/mach/map.h | 38 ++
> arch/arm/mach-exynos/include/mach/regs-clock.h | 5 +
> arch/arm/mach-exynos/include/mach/regs-sysmmu.h | 28 --
> arch/arm/mach-exynos/include/mach/sysmmu.h | 88 +++--
> arch/arm/mach-exynos/mach-armlex4210.c | 1 -
> arch/arm/mach-exynos/mach-smdkv310.c | 1 -
> 15 files changed, 529 insertions(+), 336 deletions(-)
> delete mode 100644 arch/arm/mach-exynos/include/mach/regs-sysmmu.h

This patch doesn't apply cleanly against upstream Linux (v3.3-rcX).
Please rebase to upstream and resend. The other 2 patches apply fine.


Joerg

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AMD Operating System Research Center

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