Julien Grall e5cbec617f ARM: EXYNOS: Don't try to initialize suspend on old DT ... Since commit 8b283c0254 ("ARM: exynos4/5: convert pmu wakeup to stacked domains"), a suspend/resume is not supported on old DT. Although, rather than printing a warning and continue to boot, the kernel will segfault just after: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1 at arch/arm/mach-exynos/suspend.c:726 exynos_pm_init+0x4c/0xc8() Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.1.0-rc3 #1 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [<c02181c4>] (unwind_backtrace) from [<c0213b2c>] (show_stack+0x10/0x14) [<c0213b2c>] (show_stack) from [<c0949890>] (dump_stack+0x70/0x8c) [<c0949890>] (dump_stack) from [<c024f0b0>] (warn_slowpath_common+0x74/0xac) [<c024f0b0>] (warn_slowpath_common) from [<c024f104>] (warn_slowpath_null+0x1c/0x24) [<c024f104>] (warn_slowpath_null) from [<c0cf1d28>] (exynos_pm_init+0x4c/0xc8) [<c0cf1d28>] (exynos_pm_init) from [<c0ceaae8>] (init_machine_late+0x1c/0x28) [<c0ceaae8>] (init_machine_late) from [<c020aa64>] (do_one_initcall+0x80/0x1d0) [<c020aa64>] (do_one_initcall) from [<c0ce8d4c>] (kernel_init_freeable+0x10c/0x1d8) [<c0ce8d4c>] (kernel_init_freeable) from [<c0944a2c>] (kernel_init+0x8/0xe4) [<c0944a2c>] (kernel_init) from [<c0210e60>] (ret_from_fork+0x14/0x34) ---[ end trace 335bd937d409f3c7 ]--- Outdated DT detected, suspend/resume will NOT work Unable to handle kernel NULL pointer dereference at virtual address 00000608 pgd = c0204000 [00000608] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W 4.1.0-rc3 #1 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) task: db06c000 ti: db05a000 task.ti: db05a000 PC is at exynos_pm_init+0x6c/0xc8 LR is at exynos_pm_init+0x54/0xc8 pc : [<c0cf1d48>] lr : [<c0cf1d30>] psr: 60000113 sp : db05bee8 ip : 00000000 fp : 00000000 r10: 00000116 r9 : c0dab2d4 r8 : d8d5f440 r7 : c0db7ad8 r6 : c0db7ad8 r5 : 00000000 r4 : c0ceaacc r3 : c0eb2aec r2 : c0951e40 r1 : 00000000 r0 : c0eb2acc Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 6020406a DAC: 00000015 Process swapper/0 (pid: 1, stack limit = 0xdb05a220) Stack: (0xdb05bee8 to 0xdb05c000) bee0: c0db7ad8 c0d8fe34 c0cf17c8 c0ceaae8 00000000 c020aa64 bf00: 00000033 c09580b8 db04fd00 c0ed79a4 c0eb1000 c0ce8588 c0ca2bc4 c0353fcc bf20: 00000000 c0df358c 60000113 00000000 dbfffba4 00000000 c0ca2bc4 c026654c bf40: c0b80134 c0ca1a64 00000007 00000007 c0df3554 c0d6c2f4 00000007 c0d6c2d4 bf60: c0eb1000 c0ce8588 c0dab2d4 00000116 00000000 c0ce8d4c 00000007 00000007 bf80: c0ce8588 c0944a24 00000000 c0944a24 00000000 00000000 00000000 00000000 bfa0: 00000000 c0944a2c 00000000 c0210e60 00000000 00000000 00000000 00000000 bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [<c0cf1d48>] (exynos_pm_init) from [<c0ceaae8>] (init_machine_late+0x1c/0x28) [<c0ceaae8>] (init_machine_late) from [<c020aa64>] (do_one_initcall+0x80/0x1d0) [<c020aa64>] (do_one_initcall) from [<c0ce8d4c>] (kernel_init_freeable+0x10c/0x1d8) [<c0ce8d4c>] (kernel_init_freeable) from [<c0944a2c>] (kernel_init+0x8/0xe4) [<c0944a2c>] (kernel_init) from [<c0210e60>] (ret_from_fork+0x14/0x34) Code: e59f005c e59220c0 e5901000 e5832000 (e591e608) ---[ end trace 335bd937d409f3c8 ]--- This is happening because pmu_base_addr is only initialized when the PMU is an interrupt controller. It's not the case on old DT. Signed-off-by: Julien Grall <julien.grall@citrix.com> Signed-off-by: Kukjin Kim <kgene@kernel.org>		2015-05-13 03:49:04 +09:00
..
boot	ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for Peach Boards	2015-05-13 03:18:33 +09:00
common	ARM: SoC platform updates for v4.1	2015-04-22 09:08:39 -07:00
configs	ARM: multi_v7_defconfig: Select more FSL SoCs	2015-05-07 18:31:00 +02:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2015-04-15 10:42:15 -07:00
firmware
include	Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-05-10 11:16:48 -07:00
kernel	ARM: 8352/1: perf: Fix the pmu node name in warning message	2015-05-03 23:23:44 +01:00
kvm	This mostly includes the PPC changes for 4.1, which this time cover	2015-04-26 13:06:22 -07:00
lib	ARM: ensure delay timer has sufficient accuracy for delays	2015-04-14 22:28:07 +01:00
mach-alpine	ARM: alpine: add support for generic pci	2015-04-14 01:15:57 +02:00
mach-asm9260
mach-at91	Fourth batch of cleanup for 4.1:	2015-04-14 01:50:21 +02:00
mach-axxia
mach-bcm
mach-berlin
mach-clps711x
mach-cns3xxx
mach-davinci	ARM: DT updates for v4.1	2015-04-22 09:09:46 -07:00
mach-digicolor
mach-dove
mach-ebsa110
mach-efm32
mach-ep93xx
mach-exynos	ARM: EXYNOS: Don't try to initialize suspend on old DT	2015-05-13 03:49:04 +09:00
mach-footbridge
mach-gemini
mach-highbank
mach-hisi
mach-imx	ARM: mach-imx: devices: platform-sdhci-esdhc-imx: fix broken email address	2015-04-27 20:37:06 +08:00
mach-integrator
mach-iop13xx
mach-iop32x
mach-iop33x
mach-ixp4xx
mach-keystone
mach-ks8695
mach-lpc32xx
mach-mediatek
mach-meson
mach-mmp
mach-moxart
mach-mv78xx0
mach-mvebu	ARM: SoC platform updates for v4.1	2015-04-22 09:08:39 -07:00
mach-mxs
mach-netx
mach-nomadik
mach-nspire
mach-omap1
mach-omap2	ARM: OMAP2+: Fix omap off idle power consumption creeping up	2015-05-04 08:54:41 -07:00
mach-orion5x
mach-picoxcell
mach-prima2
mach-pxa	ARM: pxa: lubbock: use new pxa_cplds driver	2015-04-30 22:52:51 +02:00
mach-qcom
mach-realview
mach-rockchip	rockchip: make sure timer7 is enabled on rk3288 platforms	2015-04-16 21:22:17 +02:00
mach-rpc
mach-s3c24xx
mach-s3c64xx	ARM: SoC platform updates for v4.1	2015-04-22 09:08:39 -07:00
mach-s5pv210
mach-sa1100
mach-shmobile	Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma	2015-04-24 09:49:37 -07:00
mach-socfpga
mach-spear
mach-sti
mach-sunxi
mach-tegra	Power management and ACPI updates for v4.1-rc1	2015-04-14 20:21:54 -07:00
mach-u300
mach-ux500
mach-versatile
mach-vexpress	ARM: SoC driver updates for v4.1	2015-04-22 09:18:17 -07:00
mach-vt8500
mach-w90x900
mach-zynq
mm	ARM: 8350/1: proc-feroceon: Fix feroceon_proc_info macro	2015-05-03 23:23:09 +01:00
net
nwfpe
oprofile
plat-iop
plat-omap	ARM, clocksource/drivers: Provide read_boot_clock64() and read_persistent_clock64() and use them	2015-04-03 08:18:23 +02:00
plat-orion
plat-pxa	ARM: plat-pxa: remove use of seq_printf return value	2015-04-15 16:35:25 -07:00
plat-samsung
plat-versatile
probes
tools
vdso	ARM: 8344/1: VDSO: honor CONFIG_VDSO in Makefile	2015-04-21 15:28:02 +01:00
vfp
xen	xen: Add __GFP_DMA flag when xen_swiotlb_init gets free pages on ARM	2015-05-06 15:02:58 +01:00
Kconfig	ARM: SoC multiplatform code changes for v4.1	2015-04-22 09:20:15 -07:00
Kconfig-nommu
Kconfig.debug	ARM: SoC multiplatform code changes for v4.1	2015-04-22 09:20:15 -07:00
Makefile	ARM: SoC platform updates for v4.1	2015-04-22 09:08:39 -07:00