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

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Date:   Sat, 25 Dec 2021 19:45:40 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     "open list:MEMORY TECHNOLOGY..." <linux-mtd@...ts.infradead.org>,
        Rafał Miłecki <zajec5@...il.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Brian Norris <computersforpeace@...il.com>,
        Kamal Dasu <kdasu.kdev@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Cai Huoqing <caihuoqing@...du.com>,
        Colin Ian King <colin.king@...el.com>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:BROADCOM SPECIFIC AMBA DRIVER (BCMA)" 
        <linux-wireless@...r.kernel.org>,
        "open list:BROADCOM STB NAND FLASH DRIVER" 
        <bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH 5/9] mtd: rawnand: brcmnand: Allow working without interrupts

On Sat, Dec 25, 2021 at 1:41 AM Florian Fainelli <f.fainelli@...il.com> wrote:
>
> 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@...il.com>

> -       unsigned int            irq;
> +       int                     irq;

instead.,,

> +       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.

-- 
With Best Regards,
Andy Shevchenko