[PATCH v2] OMAP: use fncpy to copy the PM code functions to SRAM

On Wed, Jan 19, 2011 at 11:10 PM, Tony Lindgren [off-list ref] wrote:

* Kevin Hilman [off-list ref] [110119 13:37]:

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Kevin Hilman [off-list ref] writes:

quoted

jean.pihet at newoldbits.com writes:

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From: Jean Pihet <redacted>

The new fncpy API is better suited for copying some
code to SRAM at runtime. This patch changes the ad-hoc
code to the more generic fncpy API.

Tested OK on OMAP3 in low power modes (RET/OFF)
using omap2plus_defconfig with !CONFIG_THUMB2_KERNEL.
Compile tested on OMAP1/2 using omap1_defconfig.

Signed-off-by: Jean Pihet <redacted>

Acked-by: Kevin Hilman <redacted>

Boot tested on OMAP1 & OMAP2 as well. ?Note that neither OMAP1 or OMAP2
has had working suspend/resume for a long time now, so I did not test
suspend/resume.

For OMAP2:

Tested-by: Kevin Hilman <redacted>

to test a little more on OMAP2, I just removed the WFI from the
low-level code and tested suspend that way. ?That's enough to be sure
the copied code is copied and executed.

Worked fine on OMAP2420/n810.

For OMAP1, this didn't work and would require more serious hacking on
the OMAP1 suspend path, which I currently have no plans to do.

Boots fine on osk5912 and n800 too:

Tested-by: Tony Lindgren <tony@atomide.com>

Thanks for testing!

Regards,
Jean