WORKAROUND: Temporary workaround for Suspend-To-Ram.
authorJonghwa Lee <jonghwa3.lee@samsung.com>
Mon, 7 Oct 2013 06:45:12 +0000 (15:45 +0900)
committerChanho Park <chanho61.park@samsung.com>
Tue, 18 Nov 2014 02:44:50 +0000 (11:44 +0900)
*** Should be purged later.

Current issue :
@m0, When system wakes from suspend-to-ram state, it often
hangs out or shows data abort error due to invalidate PC value
(For more information, please reference 'BSP ISSUES'
on TizenKernel Wiki (http://10.252.81.130/mediawiki/)

Suspect :
Non boot CPUs' hotplugging. Without power-off of non-boot cpus,
it never happens.

Workaround :
Keep VDD_ARM regulator ON, even system's in STR state.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
arch/arm/boot/dts/exynos4412-slp_pq.dts

index 7b912dd..3021f27 100644 (file)
                                        regulator-max-microvolt = <1500000>;
                                        regulator-always-on;
                                        regulator-boot-on;
-                                       regulator-mem-off;
+                                       regulator-mem-on;
                                };
 
                                buck3_reg: buck@3 {