[ARM] S3C: Add debug to UART save and a per-arch callback pre-restore

Add a simple debug message on saving the UART state and add a per-arch
pre-restore function to be used by the s3c64xx restore code to ensure
the UARTs control registers do not go through any illegal state changes.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c24xx/include/plat/pm-core.h b/arch/arm/plat-s3c24xx/include/plat/pm-core.h
index c75882113e04..fb45dd9adca5 100644
--- a/arch/arm/plat-s3c24xx/include/plat/pm-core.h
+++ b/arch/arm/plat-s3c24xx/include/plat/pm-core.h
@@ -57,3 +57,8 @@ static inline void s3c_pm_arch_show_resume_irqs(void)
         s3c_pm_show_resume_irqs(IRQ_EINT4-4, __raw_readl(S3C2410_EINTPEND),
                                 s3c_irqwake_eintmask);
 }
+
+static inline void s3c_pm_arch_update_uart(void __iomem *regs,
+                                           struct pm_uart_save *save)
+{
+}