4.1-stable review patch. If anyone has any objections, please let me know.
------------------ From: Grygorii Strashko <[email protected]> commit 8200fe4347870d4ad6475048bcdf3e7c106c5268 upstream. The TI crossbar irqchip doesn't provides any facility to configure the wakeup sources, but the conversion to hierarchical irqdomains set the irq_set_wake callback to irq_chip_set_wake_parent. The parent chip (OMAP wakeupgen) has no irq_set_wake function either so the call will fail with -ENOSYS. As a result the irq_set_wake() call in the resume path will trigger an 'Unbalanced wake disable' warning. Before the conversion the GIC irqchip was the top level irqchip and correctly flagged with IRQCHIP_SKIP_SET_WAKE. Restore the correct behaviour by removing the irq_set_type callback from the crossbar irqchip and set the IRQCHIP_SKIP_SET_WAKE flag which lets the irq_set_irq_wake() call from the driver succeed. [ tglx: Massaged changelog ] Fixes: 783d31863fb8 ('irqchip: crossbar: Convert dra7 crossbar...') Signed-off-by: Grygorii Strashko <[email protected]> Cc: Sudeep Holla <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Cc: <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/irqchip/irq-crossbar.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/irqchip/irq-crossbar.c +++ b/drivers/irqchip/irq-crossbar.c @@ -68,9 +68,9 @@ static struct irq_chip crossbar_chip = { .irq_mask = irq_chip_mask_parent, .irq_unmask = irq_chip_unmask_parent, .irq_retrigger = irq_chip_retrigger_hierarchy, - .irq_set_wake = irq_chip_set_wake_parent, .irq_set_type = irq_chip_set_type_parent, - .flags = IRQCHIP_MASK_ON_SUSPEND, + .flags = IRQCHIP_MASK_ON_SUSPEND | + IRQCHIP_SKIP_SET_WAKE, #ifdef CONFIG_SMP .irq_set_affinity = irq_chip_set_affinity_parent, #endif -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
