linux-kernel - Re: [PATCH] mfd: twl6030-irq: Revert to use of_match

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Message-ID: <20231123103756.GD1184245@google.com>
Date:   Thu, 23 Nov 2023 10:37:56 +0000
From:   Lee Jones <lee@...nel.org>
To:     Peter Ujfalusi <peter.ujfalusi@...il.com>
Cc:     tony@...mide.com, robh@...nel.org, wens@...e.org,
        linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: twl6030-irq: Revert to use of_match_device()

On Sun, 29 Oct 2023, Peter Ujfalusi wrote:

> The core twl chip is probed via i2c and the dev->driver->of_match_table is
> NULL, causing the driver to fail to probe.
> 
> This partially reverts commit 1e0c866887f4.
> 
> Fixes: 1e0c866887f4 ("mfd: Use device_get_match_data() in a bunch of drivers")
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...il.com>
> ---
>  drivers/mfd/twl6030-irq.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c
> index f9fce8408c2c..3c03681c124c 100644
> --- a/drivers/mfd/twl6030-irq.c
> +++ b/drivers/mfd/twl6030-irq.c
> @@ -24,10 +24,10 @@
>  #include <linux/kthread.h>
>  #include <linux/mfd/twl.h>
>  #include <linux/platform_device.h>
> -#include <linux/property.h>
>  #include <linux/suspend.h>
>  #include <linux/of.h>
>  #include <linux/irqdomain.h>
> +#include <linux/of_device.h>
>  
>  #include "twl-core.h"
>  
> @@ -368,10 +368,10 @@ int twl6030_init_irq(struct device *dev, int irq_num)
>  	int			nr_irqs;
>  	int			status;
>  	u8			mask[3];
> -	const int		*irq_tbl;
> +	const struct of_device_id *of_id;
>  
> -	irq_tbl = device_get_match_data(dev);
> -	if (!irq_tbl) {
> +	of_id = of_match_device(twl6030_of_match, dev);

I think you just dropped support for ACPI.

Rob, care to follow-up?

> +	if (!of_id || !of_id->data) {
>  		dev_err(dev, "Unknown TWL device model\n");
>  		return -EINVAL;
>  	}
> @@ -409,7 +409,7 @@ int twl6030_init_irq(struct device *dev, int irq_num)
>  
>  	twl6030_irq->pm_nb.notifier_call = twl6030_irq_pm_notifier;
>  	atomic_set(&twl6030_irq->wakeirqs, 0);
> -	twl6030_irq->irq_mapping_tbl = irq_tbl;
> +	twl6030_irq->irq_mapping_tbl = of_id->data;
>  
>  	twl6030_irq->irq_domain =
>  		irq_domain_add_linear(node, nr_irqs,
> -- 
> 2.42.0
> 

-- 
Lee Jones [李琼斯]