linux-kernel - Re: [PATCH 1/1] net: dsa: b53: Fix for failure when irq is not defined in dt

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Message-ID: <9437b256-0ae6-f08a-c728-d56f4205816b@gmail.com>
Date:   Thu, 7 Feb 2019 16:07:47 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Arun Parameswaran <arun.parameswaran@...adcom.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     bcm-kernel-feedback-list@...adcom.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] net: dsa: b53: Fix for failure when irq is not
 defined in dt

On 2/7/19 4:01 PM, Arun Parameswaran wrote:
> Fixes the issues with non BCM58XX chips in the b53 driver
> failing, when the irq is not specified in the device tree.
> 
> Removed the check for BCM58XX in b53_srab_prepare_irq(),
> so the 'port->irq' will be set to '-EXIO' if the irq is not
> specified in the device tree.
> 
> Fixes: 16994374a6fc ("net: dsa: b53: Make SRAB driver manage port interrupts")
> Fixes: b2ddc48a81b5 ("net: dsa: b53: Do not fail when IRQ are not initialized")
> Signed-off-by: Arun Parameswaran <arun.parameswaran@...adcom.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>

Thanks Arun!

> ---
>  drivers/net/dsa/b53/b53_srab.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/net/dsa/b53/b53_srab.c b/drivers/net/dsa/b53/b53_srab.c
> index 90f514252987..d9c56a779c08 100644
> --- a/drivers/net/dsa/b53/b53_srab.c
> +++ b/drivers/net/dsa/b53/b53_srab.c
> @@ -511,9 +511,6 @@ static void b53_srab_prepare_irq(struct platform_device *pdev)
>  	/* Clear all pending interrupts */
>  	writel(0xffffffff, priv->regs + B53_SRAB_INTR);
>  
> -	if (dev->pdata && dev->pdata->chip_id != BCM58XX_DEVICE_ID)
> -		return;
> -
>  	for (i = 0; i < B53_N_PORTS; i++) {
>  		port = &priv->port_intrs[i];
>  
> 


-- 
Florian