[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>
diff --git a/arch/arm/plat-s3c/pm.c b/arch/arm/plat-s3c/pm.c
index 061182c..de4c4aa 100644
--- a/arch/arm/plat-s3c/pm.c
+++ b/arch/arm/plat-s3c/pm.c
@@ -83,6 +83,9 @@
save->ufcon = __raw_readl(regs + S3C2410_UFCON);
save->umcon = __raw_readl(regs + S3C2410_UMCON);
save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV);
+
+ S3C_PMDBG("UART[%d]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n",
+ uart, save->ulcon, save->ucon, save->ufcon, save->ubrdiv);
}
static void s3c_pm_save_uarts(void)
@@ -98,6 +101,8 @@
{
void __iomem *regs = S3C_VA_UARTx(uart);
+ s3c_pm_arch_update_uart(regs, save);
+
__raw_writel(save->ulcon, regs + S3C2410_ULCON);
__raw_writel(save->ucon, regs + S3C2410_UCON);
__raw_writel(save->ufcon, regs + S3C2410_UFCON);