Thread (25 messages) 25 messages, 3 authors, 2022-01-04

Re: [PATCH 5/9] mtd: rawnand: brcmnand: Allow working without interrupts

flat view

From: Florian Fainelli <f.fainelli@gmail.com>
Date: 2021-12-27 17:06:03
Also in: lkml


On 12/25/2021 9:45 AM, Andy Shevchenko wrote:
On Sat, Dec 25, 2021 at 1:41 AM Florian Fainelli [off-list ref] wrote:
quoted
The BCMA devices include the brcmnand controller but they do not wire up
any interrupt line, allow the main interrupt to be optional and update
the completion path to also check for the lack of an interrupt line.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
quoted
-       unsigned int            irq;
+       int                     irq;
instead.,,
quoted
+       ctrl->irq = platform_get_irq_optional(pdev, 0);
+       if (ctrl->irq >= 0) {
ret = ...
if (ret > 0) {

And drop 0 from the equation, OF never uses 0 as valid vIRQ.
OK but the point of this patch series is to allow the use of the brcmnand driver in a configuration without OF. I don't really see the point in continuing to use unsigned int instead of just letting request_irq() play through and tell us if the interrupt descriptor was valid later on.
-- 
Florian
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