Re: [PATCH] spi: bcm2835: Enable shared interrupt support

[Florian Fainelli <f.fainelli@xxxxxxxxx>]

On 5/28/20 11:58 AM, Nicolas Saenz Julienne wrote:
> From: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
> 
> bcm2711, Rasberry Pi 4's SoC, shares one interrupt for multiple
> instances of the bcm2835 SPI controller. So this enables shared
> interrupt support for them.
> 
> The early bail out in the interrupt routine avoids messing with buffers
> of transfers being done by other means. Otherwise, the driver can handle
> receiving interrupts asserted by other controllers during an IRQ based
> transfer.
> 
> Signed-off-by: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>

Thanks Nicolas, we have been using this patch on 7211 (which is very
similar to 2711):

Tested-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
-- 
Florian