This patch makes legacy code on suspend/resume path being executed
conditionally, on non-DT platforms only, to fix suspend/resume of
DT-enabled systems, for which the code is inappropriate.

Signed-off-by: Tomasz Figa <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
---
 arch/arm/plat-samsung/pm.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index 53210ec..8ac2b2d 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -261,7 +261,8 @@ static int s3c_pm_enter(suspend_state_t state)
         * require a full power-cycle)
        */
 
-       if (!any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
+       if (!of_have_populated_dt() &&
+           !any_allowed(s3c_irqwake_intmask, s3c_irqwake_intallow) &&
            !any_allowed(s3c_irqwake_eintmask, s3c_irqwake_eintallow)) {
                printk(KERN_ERR "%s: No wake-up sources!\n", __func__);
                printk(KERN_ERR "%s: Aborting sleep\n", __func__);
@@ -270,8 +271,11 @@ static int s3c_pm_enter(suspend_state_t state)
 
        /* save all necessary core registers not covered by the drivers */
 
-       samsung_pm_save_gpios();
-       samsung_pm_saved_gpios();
+       if (!of_have_populated_dt()) {
+               samsung_pm_save_gpios();
+               samsung_pm_saved_gpios();
+       }
+
        s3c_pm_save_uarts();
        s3c_pm_save_core();
 
@@ -310,8 +314,11 @@ static int s3c_pm_enter(suspend_state_t state)
 
        s3c_pm_restore_core();
        s3c_pm_restore_uarts();
-       samsung_pm_restore_gpios();
-       s3c_pm_restored_gpios();
+
+       if (!of_have_populated_dt()) {
+               samsung_pm_restore_gpios();
+               s3c_pm_restored_gpios();
+       }
 
        s3c_pm_debug_init();
 
-- 
1.8.2.1

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to