1. 01 Sep, 2017 1 commit
  2. 26 Jul, 2017 1 commit
    • Leo Yan's avatar
      hikey: Disable VBUS_DET interrupt for PMIC · c9e8774c
      Leo Yan authored
      
      
      After disconnect Jumper pin 1-2 in J15 header, the signal VBUS_DET is to
      be pulled down to low level. This will assert the interrupt signal in
      PMIC and trigger IRQ in GIC; the asserted signal from VBUS_DET is level
      triggered and kernel reports the warning for unhooked interrupt handling;
      and VBUS_DET stays with low level, this triggers IRQ storm in kernel.
      
      This patch is to disable interrupt for VBUS_DET in PMIC, this can
      dismiss the verbose log and IRQ storm after kernel booting.
      
      [   40.835279] irq 57: nobody cared (try booting with the "irqpoll" option)
      [   40.842075] CPU: 0 PID: 980 Comm: irq/57-hi655x-p Not tainted 4.4.77-568944-g576a0114dec8-dirty #667
      [   40.851303] Hardware name: HiKey Development Board (DT)
      [   40.856580] Call trace:
      [   40.859060] [<ffffff800808c4cc>] dump_backtrace+0x0/0x1e0
      [   40.864516] [<ffffff800808c8ac>] show_stack+0x20/0x28
      [   40.869622] [<ffffff80084b9688>] dump_stack+0xa8/0xe0
      [   40.874729] [<ffffff800812dd5c>] __report_bad_irq+0x40/0xec
      [   40.880360] [<ffffff800812e0bc>] note_interrupt+0x1e4/0x2d8
      [   40.885992] [<ffffff800812b11c>] handle_irq_event_percpu+0xd8/0x268
      [   40.892324] [<ffffff800812b2f8>] handle_irq_event+0x4c/0x7c
      [   40.897955] [<ffffff800812ecbc>] handle_level_irq+0xcc/0x178
      [   40.903672] [<ffffff800812a778>] generic_handle_irq+0x34/0x4c
      [   40.909481] [<ffffff80085074c8>] pl061_irq_handler+0xa8/0x124
      [   40.915286] [<ffffff800812a778>] generic_handle_irq+0x34/0x4c
      [   40.921092] [<ffffff800812a820>] __handle_domain_irq+0x90/0xf8
      [   40.926985] [<ffffff8008082620>] gic_handle_irq+0x58/0xa8
      Signed-off-by: default avatarDmitry Shmidt <dimitrysh@google.com>
      Signed-off-by: default avatarLeo Yan <leo.yan@linaro.org>
      c9e8774c
  3. 24 May, 2017 1 commit