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[0/3] Fix IRQ storm with GPIO interrupts

Message ID 20230918122411.237635-1-biju.das.jz@bp.renesas.com (mailing list archive)
Headers show
Series Fix IRQ storm with GPIO interrupts | expand

Message

Biju Das Sept. 18, 2023, 12:24 p.m. UTC 
The following issues observed while adding IRQ support for RTC.
 * The irq_disable is not clearing interrupt source properly.
 * The driver is not following as per hardware manual for changing
   interrupt settings.
 * IRQ storm due to phantum interrupt, when we select the TINT source.
   Here IRQ handler disables  the interrupts using disable_irq_nosync()
   and scheduling a work queue and in the work queue, re-enabling the
   interrupt with enable_irq().

Biju Das (3):
  irqchip: renesas-rzg2l: Fix logic to clear TINT interrupt source
  irqchip: renesas-rzg2l: Mask interrupts for changing interrupt
    settings
  irqchip: renesas-rzg2l: Fix irq storm with edge trigger detection for
    TINT

 drivers/irqchip/irq-renesas-rzg2l.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)