On 08/30/2013 12:21 PM, Bartlomiej Zolnierkiewicz wrote:

Add "cpuidle-exynos.max_states=" parameter to allow user to specify
the maximum of allowed CPU idle states for ARM EXYNOS cpuidle driver.

This change is needed because C1 state (AFTR mode) is often not able
to work properly due to incompatibility with some bootloader versions.

Usage examples:

"cpuidle-exynos.max_states=1" disables C1 state (AFTR mode).

"cpuidle-exynos.max_states=0" disables the driver completely.

Signed-off-by: Bartlomiej Zolnierkiewicz <redacted>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Tomasz Figa <redacted>
Cc: Amit Daniel Kachhap <redacted>

There is a max_cstate option for acpi and intel idle. There is also the
cpuidle.off=1 option. As the semantic is the same, I think adding a
common cpuidle option usable for all the drivers is better.

Thanks
  -- Daniel

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