Re: [PATCH v2] irqchip/versatile-fpga: Handle chained IRQs properly

[Marc Zyngier]

On 2020-03-19 02:34, Sungbo Eo wrote:
> Enclose the chained handler with chained_irq_{enter,exit}(), so that 
> the
> muxed interrupts get properly acked.
>
> This patch also fixes a reboot bug on OX820 SoC, where the jiffies 
> timer
> interrupt is never acked. The kernel waits a clock tick forever in
> calibrate_delay_converge(), which leads to a boot hang.
>
> Fixes: c41b16f8c9d9 ("ARM: integrator/versatile: consolidate FPGA IRQ
> handling code")
> Signed-off-by: Sungbo Eo <mans0n@xxxxxxxxxx>
> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> ---
> v2: moved readl below chained_irq_enter()
>     added Fixes tag
>
>  drivers/irqchip/irq-versatile-fpga.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)

Queued for 5.7.

Thanks,

        M.
--
Jazz is not dead. It just smells funny...