1. 14 8月, 2015 3 次提交
  2. 31 7月, 2015 2 次提交
  3. 30 7月, 2015 2 次提交
  4. 21 7月, 2015 4 次提交
  5. 21 6月, 2015 1 次提交
  6. 06 6月, 2015 12 次提交
  7. 01 6月, 2015 1 次提交
  8. 14 5月, 2015 2 次提交
  9. 13 5月, 2015 2 次提交
    • K
      ARM: EXYNOS: Fix dereference of ERR_PTR returned by of_genpd_get_from_provider · 0b7dc0ff
      Krzysztof Kozlowski 提交于
      ERR_PTR was dereferenced during sub domain parsing, if parent domain
      could not be obtained (because of invalid phandle or deferred
      registration of parent domain).
      
      The Exynos power domain code checked whether
      of_genpd_get_from_provider() returned NULL and in that case it skipped
      that power domain node. However this function returns ERR_PTR or valid
      pointer, not NULL.
      
      Fixes: 0f780751 ("ARM: EXYNOS: add support for sub-power domains")
      Cc: <stable@vger.kernel.org>	[4.0+]
      Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
      Signed-off-by: NKukjin Kim <kgene@kernel.org>
      0b7dc0ff
    • J
      ARM: EXYNOS: Don't try to initialize suspend on old DT · e5cbec61
      Julien Grall 提交于
      Since commit 8b283c02 ("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: NJulien Grall <julien.grall@citrix.com>
      Signed-off-by: NKukjin Kim <kgene@kernel.org>
      e5cbec61
  10. 06 5月, 2015 1 次提交
  11. 04 4月, 2015 1 次提交
  12. 30 3月, 2015 1 次提交
  13. 27 3月, 2015 5 次提交
  14. 19 3月, 2015 1 次提交
  15. 18 3月, 2015 2 次提交