linux-kernel - Re: linux-next: manual merge of the arm-soc tree with the driver-core tree

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Message-ID: <20121129225927.GJ8628@kw.sim.vm.gnt>
Date:	Thu, 29 Nov 2012 23:59:27 +0100
From:	Simon Guinot <simon.guinot@...uanux.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Olof Johansson <olof@...om.net>, Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, Bill Pemberton <wfp5p@...ginia.edu>,
	Greg KH <greg@...ah.com>
Subject: Re: linux-next: manual merge of the arm-soc tree with the
 driver-core tree

On Thu, Nov 29, 2012 at 04:03:09PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the arm-soc tree got a conflict in
> drivers/leds/leds-ns2.c between commit 98ea1ea20cb7 ("leds: remove use of
> __devinit") from the driver-core tree and commit 72052fcc1026 ("leds:
> leds-ns2: add device tree binding") from the arm-soc tree.
> 
> I fixed it up (see below) and can carry the fix as necessary (no action
> is required).

Hi Stephen,

The merge is fine and the driver works as expected.

Thanks.

Simon

> 
> -- 
> Cheers,
> Stephen Rothwell                    sfr@...b.auug.org.au
> 
> diff --cc drivers/leds/leds-ns2.c
> index bc6a0db,d64cc22..0000000
> --- a/drivers/leds/leds-ns2.c
> +++ b/drivers/leds/leds-ns2.c
> @@@ -247,9 -260,67 +248,65 @@@ static void delete_ns2_led(struct ns2_l
>   {
>   	device_remove_file(led_dat->cdev.dev, &dev_attr_sata);
>   	led_classdev_unregister(&led_dat->cdev);
>  -	gpio_free(led_dat->cmd);
>  -	gpio_free(led_dat->slow);
>   }
>   
> + #ifdef CONFIG_OF_GPIO
> + /*
> +  * Translate OpenFirmware node properties into platform_data.
> +  */
>  -static int __devinit
> ++static int
> + ns2_leds_get_of_pdata(struct device *dev, struct ns2_led_platform_data *pdata)
> + {
> + 	struct device_node *np = dev->of_node;
> + 	struct device_node *child;
> + 	struct ns2_led *leds;
> + 	int num_leds = 0;
> + 	int i = 0;
> + 
> + 	num_leds = of_get_child_count(np);
> + 	if (!num_leds)
> + 		return -ENODEV;
> + 
> + 	leds = devm_kzalloc(dev, num_leds * sizeof(struct ns2_led),
> + 			    GFP_KERNEL);
> + 	if (!leds)
> + 		return -ENOMEM;
> + 
> + 	for_each_child_of_node(np, child) {
> + 		const char *string;
> + 		int ret;
> + 
> + 		ret = of_get_named_gpio(child, "cmd-gpio", 0);
> + 		if (ret < 0)
> + 			return ret;
> + 		leds[i].cmd = ret;
> + 		ret = of_get_named_gpio(child, "slow-gpio", 0);
> + 		if (ret < 0)
> + 			return ret;
> + 		leds[i].slow = ret;
> + 		ret = of_property_read_string(child, "label", &string);
> + 		leds[i].name = (ret == 0) ? string : child->name;
> + 		ret = of_property_read_string(child, "linux,default-trigger",
> + 					      &string);
> + 		if (ret == 0)
> + 			leds[i].default_trigger = string;
> + 
> + 		i++;
> + 	}
> + 
> + 	pdata->leds = leds;
> + 	pdata->num_leds = num_leds;
> + 
> + 	return 0;
> + }
> + 
> + static const struct of_device_id of_ns2_leds_match[] = {
> + 	{ .compatible = "lacie,ns2-leds", },
> + 	{},
> + };
> + #endif /* CONFIG_OF_GPIO */
> + 
>  -static int __devinit ns2_led_probe(struct platform_device *pdev)
>  +static int ns2_led_probe(struct platform_device *pdev)
>   {
>   	struct ns2_led_platform_data *pdata = pdev->dev.platform_data;
>   	struct ns2_led_data *leds_data;
> @@@ -296,10 -381,11 +367,11 @@@ static int ns2_led_remove(struct platfo
>   
>   static struct platform_driver ns2_led_driver = {
>   	.probe		= ns2_led_probe,
>  -	.remove		= __devexit_p(ns2_led_remove),
>  +	.remove		= ns2_led_remove,
>   	.driver		= {
> - 		.name	= "leds-ns2",
> - 		.owner	= THIS_MODULE,
> + 		.name		= "leds-ns2",
> + 		.owner		= THIS_MODULE,
> + 		.of_match_table	= of_match_ptr(of_ns2_leds_match),
>   	},
>   };
>   



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