[lkml]   [2019]   [Apr]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH 4.9 35/50] ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms
[ Upstream commit 6862fdf2201ab67cd962dbf0643d37db909f4860 ]

"S3C2410 PM Suspend Memory CRC" feature (controlled by
SAMSUNG_PM_CHECK config option) is incompatible with highmem
(uses phys_to_virt() instead of proper mapping) which is used by
the majority of Exynos boards. The issue manifests itself in OOPS
on affected boards, i.e. on Odroid-U3 I got the following one:

Unable to handle kernel paging request at virtual address f0000000
pgd = 1c0f9bb4
[f0000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[<c0458034>] (crc32_le) from [<c0121f8c>] (s3c_pm_makecheck+0x34/0x54)
[<c0121f8c>] (s3c_pm_makecheck) from [<c0121efc>] (s3c_pm_run_res+0x74/0x8c)
[<c0121efc>] (s3c_pm_run_res) from [<c0121ecc>] (s3c_pm_run_res+0x44/0x8c)
[<c0121ecc>] (s3c_pm_run_res) from [<c01210b8>] (exynos_suspend_enter+0x64/0x148)
[<c01210b8>] (exynos_suspend_enter) from [<c018893c>] (suspend_devices_and_enter+0x9ec/0xe74)
[<c018893c>] (suspend_devices_and_enter) from [<c0189534>] (pm_suspend+0x770/0xc04)
[<c0189534>] (pm_suspend) from [<c0186ce8>] (state_store+0x6c/0xcc)
[<c0186ce8>] (state_store) from [<c09db434>] (kobj_attr_store+0x14/0x20)
[<c09db434>] (kobj_attr_store) from [<c02fa63c>] (sysfs_kf_write+0x4c/0x50)
[<c02fa63c>] (sysfs_kf_write) from [<c02f97a4>] (kernfs_fop_write+0xfc/0x1e4)
[<c02f97a4>] (kernfs_fop_write) from [<c027b198>] (__vfs_write+0x2c/0x140)
[<c027b198>] (__vfs_write) from [<c027b418>] (vfs_write+0xa4/0x160)
[<c027b418>] (vfs_write) from [<c027b5d8>] (ksys_write+0x40/0x8c)
[<c027b5d8>] (ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28)

Add PLAT_S3C24XX, ARCH_S3C64XX and ARCH_S5PV210 dependencies to
SAMSUNG_PM_CHECK config option to hide it on Exynos platforms.

Signed-off-by: Bartlomiej Zolnierkiewicz <>
Signed-off-by: Krzysztof Kozlowski <>
Signed-off-by: Sasha Levin <>
arch/arm/plat-samsung/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index e8229b9fee4a..3265b8f86069 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -258,7 +258,7 @@ config S3C_PM_DEBUG_LED_SMDK

bool "S3C2410 PM Suspend Memory CRC"
- depends on PM
+ depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210)
select CRC32
Enable the PM code's memory area checksum over sleep. This option

 \ /
  Last update: 2019-04-18 20:21    [W:0.214 / U:4.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site