From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Wed, 26 Apr 2017 14:34:24 +0000 (+0200)
Subject: ARM: at91: pm: fallback to slowclock when backup mode fails
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=287322386d303891e9cdc81313137054da9d5467;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ARM: at91: pm: fallback to slowclock when backup mode fails

If the backup sram allocation fails, ensure we can suspend by falling back
to the usual slow clock mode.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
---

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index ef9c1d29cc67..fc4026478579 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -544,6 +544,11 @@ sfrbu_fail:
 securam_fail:
 	iounmap(pm_data.sfrbu);
 	pm_data.sfrbu = NULL;
+
+	if (pm_data.standby_mode == AT91_PM_BACKUP)
+		pm_data.standby_mode = AT91_PM_SLOW_CLOCK;
+	if (pm_data.suspend_mode == AT91_PM_BACKUP)
+		pm_data.suspend_mode = AT91_PM_SLOW_CLOCK;
 }
 
 struct pmc_info {