• M
    clockevents: Fix generic broadcast for FEAT_C3STOP · 5d1d9a29
    Mark Rutland 提交于
    Commit 12ad1000: "clockevents: Add generic timer broadcast function"
    made tick_device_uses_broadcast set up the generic broadcast function
    for dummy devices (where !tick_device_is_functional(dev)), but neglected
    to set up the broadcast function for devices that stop in low power
    states (with the CLOCK_EVT_FEAT_C3STOP flag).
    
    When these devices enter low power states they will not have the generic
    broadcast function assigned, and will bring down the system when an
    attempt is made to broadcast to them.
    
    This patch ensures that the broadcast function is also assigned for
    devices which require broadcast in low power states.
    Reported-by: NStephen Warren <swarren@nvidia.com>
    Signed-off-by: NMark Rutland <mark.rutland@arm.com>
    Tested-by: NStephen Warren <swarren@nvidia.com>
    Cc: linux-arm-kernel@lists.infradead.org
    Cc: nico@linaro.org
    Cc: Marc.Zyngier@arm.com
    Cc: Will.Deacon@arm.com
    Cc: santosh.shilimkar@ti.com
    Cc: john.stultz@linaro.org
    Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
    5d1d9a29
tick-broadcast.c 16.5 KB