ARM: SAMSUNG: Save UART DIVSLOT register based on SoC type

The only SoC that does not have DIVSLOT register is S3C2410, so instead
of exporting a variable for platforms to set if DIVSLOT register should
be preserved, it's enough to simply check whether we are running on
a S3C2410 instead.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 6 insertions, 13 deletions

diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index ae9baa2d6381..3563421d63ab 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -24,6 +24,8 @@
 #include <asm/cacheflush.h>
 #include <asm/suspend.h>
 
+#include <plat/cpu.h>
+
 #ifdef CONFIG_SAMSUNG_ATAGS
 #include <mach/hardware.h>
 #include <mach/map.h>
@@ -70,17 +72,6 @@ static inline void s3c_pm_debug_init(void)
         s3c_pm_debug_init_uart();
 }
 
-#else
-#define s3c_pm_debug_init() do { } while(0)
-
-#endif /* CONFIG_SAMSUNG_PM_DEBUG */
-
-/* Save the UART configurations if we are configured for debug. */
-
-unsigned char pm_uart_udivslot;
-
-#ifdef CONFIG_SAMSUNG_PM_DEBUG
-
 static struct pm_uart_save uart_save;
 
 static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save)
@@ -93,7 +84,7 @@ static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save)
         save->umcon = __raw_readl(regs + S3C2410_UMCON);
         save->ubrdiv = __raw_readl(regs + S3C2410_UBRDIV);
 
-        if (pm_uart_udivslot)
+        if (!soc_is_s3c2410())
                 save->udivslot = __raw_readl(regs + S3C2443_DIVSLOT);
 
         S3C_PMDBG("UART[%d]: ULCON=%04x, UCON=%04x, UFCON=%04x, UBRDIV=%04x\n",
@@ -117,7 +108,7 @@ static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save)
         __raw_writel(save->umcon, regs + S3C2410_UMCON);
         __raw_writel(save->ubrdiv, regs + S3C2410_UBRDIV);
 
-        if (pm_uart_udivslot)
+        if (!soc_is_s3c2410())
                 __raw_writel(save->udivslot, regs + S3C2443_DIVSLOT);
 }
 
@@ -126,6 +117,8 @@ static void s3c_pm_restore_uarts(void)
         s3c_pm_restore_uart(CONFIG_DEBUG_S3C_UART, &uart_save);
 }
 #else
+#define s3c_pm_debug_init() do { } while (0)
+
 static void s3c_pm_save_uarts(void) { }
 static void s3c_pm_restore_uarts(void) { }
 #endif