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ARM: SAMSUNG: Save/restore only selected uart's registers 

Basically this code gets executed only during debugging i.e when
DEBUG_LL & SAMSUNG_PM_DEBUG is on, so required only for UART used
for debugging. Since we are removing static iodesc entries for UARTs,
so now only the selected (CONFIG_DEBUG_S3C_UART) UART will be
ioremapped by the debug_ll_io_init() for DEBUG_LL, so save/restore
uart registers only for selected uart.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Yadwinder Singh Brar 2013-07-24 17:05:07 +09:00 committed by Kukjin Kim
parent 89693016e3
commit 7bdc84fb82
1 changed files with 3 additions and 11 deletions
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14
arch/arm/plat-samsung/pm.c
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@ -80,7 +80,7 @@ unsigned char pm_uart_udivslot;
#ifdef CONFIG_SAMSUNG_PM_DEBUG #ifdef CONFIG_SAMSUNG_PM_DEBUG
static struct pm_uart_save uart_save[CONFIG_SERIAL_SAMSUNG_UARTS]; static struct pm_uart_save uart_save;
static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save) static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save)
{ {
@ -101,11 +101,7 @@ static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save)
static void s3c_pm_save_uarts(void) static void s3c_pm_save_uarts(void)
{ {
struct pm_uart_save *save = uart_save; s3c_pm_save_uart(CONFIG_DEBUG_S3C_UART, &uart_save);
unsigned int uart;
for (uart = 0; uart < CONFIG_SERIAL_SAMSUNG_UARTS; uart++, save++)
s3c_pm_save_uart(uart, save);
} }
static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save) static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save)
@ -126,11 +122,7 @@ static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save)
static void s3c_pm_restore_uarts(void) static void s3c_pm_restore_uarts(void)
{ {
struct pm_uart_save *save = uart_save; s3c_pm_restore_uart(CONFIG_DEBUG_S3C_UART, &uart_save);
unsigned int uart;
for (uart = 0; uart < CONFIG_SERIAL_SAMSUNG_UARTS; uart++, save++)
s3c_pm_restore_uart(uart, save);
} }
#else #else
static void s3c_pm_save_uarts(void) { } static void s3c_pm_save_uarts(void) { }