ARM: at91: pm: remove pm_bu initialization in at91_pm_backup_init()

There is no need to initialize pm_bu since it is used only if backup
mode is selected. In case backup mode initialization fails (which means
pm_bu is invalid) the ULP0 mode will be selected.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 32fae4dbd63bac62391928de43831520c0bb39bc..b6488d8b7142bd59b19c0b88888673a5c9d77fd6 100644 (file)
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -580,8 +580,6 @@ static int __init at91_pm_backup_init(void)
        if (!at91_is_pm_mode_active(AT91_PM_BACKUP))
                return 0;
 
-       pm_bu = NULL;
-
        np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-sfrbu");
        if (!np) {
                pr_warn("%s: failed to find sfrbu!\n", __func__);
@@ -590,7 +588,6 @@ static int __init at91_pm_backup_init(void)
 
        pm_data.sfrbu = of_iomap(np, 0);
        of_node_put(np);
-       pm_bu = NULL;
 
        np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam");
        if (!np)