Re: [PATCH][v2] drivers/memory: Add deep sleep support for IFC

[Li Yang]

On Fri, Jan 8, 2016 at 5:18 AM, Raghav Dogra <raghav@xxxxxxxxxxxxx> wrote:
> Add support of suspend, resume function to support deep sleep.
> Also make sure of SRAM initialization  during resume.
>
> Signed-off-by: Prabhakar Kushwaha <prabhakar@xxxxxxxxxxxxx>
> Signed-off-by: Raghav Dogra <raghav@xxxxxxxxxxxxx>
> ---
> Changes for v2: Copying only the correct registers while resume.
> Based on git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git
> branch "next"
>
>  drivers/memory/fsl_ifc.c | 163 +++++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/fsl_ifc.h  |   6 ++
>  2 files changed, 169 insertions(+)
>
{snip}
> +               ifc_out32(ncfgr | IFC_NAND_SRAM_INIT_EN,
> +                                       &ifc->ifc_nand.ncfgr);
> +               /* wait for  SRAM_INIT bit to be clear or timeout */
> +               status = spin_event_timeout(

This spin_event_timeout() API is only defined by powerpc and is not
supposed to be used in a generic driver.  How did you pass the build
on arm/arm64?

Regards,
Leo