Hi, On 02.06.2014 14:35, Bartlomiej Zolnierkiewicz wrote: > From: Tomasz Figa <[email protected]> > > This change is a preparation for adding secure firmware support to > EXYNOS cpuidle driver. > > This patch shouldn't cause any functionality changes. > > Signed-off-by: Tomasz Figa <[email protected]> > [bzolnier: splitted out from bigger patch] > Acked-by: Kyungmin Park <[email protected]> > Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]> > --- > arch/arm/include/asm/firmware.h | 4 ++++ > arch/arm/mach-exynos/firmware.c | 8 ++++++++ > 2 files changed, 12 insertions(+) > > diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h > index c72ec47..70883c7 100644 > --- a/arch/arm/include/asm/firmware.h > +++ b/arch/arm/include/asm/firmware.h > @@ -41,6 +41,10 @@ struct firmware_ops { > * Initializes L2 cache > */ > int (*l2x0_init)(void); > + /* > + * Restores coprocessor 15 registers > + */ > + int (*c15resume)(u32 *regs);
Well, this was just a kind of internal hack, so I'm not sure this is suitable as a generic firmware operation in mainline. I'd rather implement this as a part of a wider suspend and resume firmware operations, where suspend would save values of cp15 registers and resume would restore them. Best regards, Tomasz -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
