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Commit e14018cc authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

video: fbdev: w100fb: convert platform driver to use dev_groups 



Platform drivers now have the option to have the platform core create
and remove any needed sysfs attribute files.  So take advantage of that
and do not register "by hand" a bunch of sysfs files.

Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: linux-arm-kernel@lists.infradead.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-fbdev@vger.kernel.org
Acked-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190731124349.4474-10-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0abd02ed

drivers/video/fbdev/w100fb.c

+10 −13
Original line number Diff line number Diff line
@@ -164,6 +164,15 @@ static ssize_t fastpllclk_store(struct device *dev, struct device_attribute *att 


static DEVICE_ATTR_RW(fastpllclk);



static struct attribute *w100fb_attrs[] = {

	&dev_attr_fastpllclk.attr,

	&dev_attr_reg_read.attr,

	&dev_attr_reg_write.attr,

	&dev_attr_flip.attr,

	NULL,

};

ATTRIBUTE_GROUPS(w100fb);



/*

 * Some touchscreens need hsync information from the video driver to

 * function correctly. We export it here.
@@ -752,14 +761,6 @@ int w100fb_probe(struct platform_device *pdev) 
		goto out;

	}



	err = device_create_file(&pdev->dev, &dev_attr_fastpllclk);

	err |= device_create_file(&pdev->dev, &dev_attr_reg_read);

	err |= device_create_file(&pdev->dev, &dev_attr_reg_write);

	err |= device_create_file(&pdev->dev, &dev_attr_flip);



	if (err != 0)

		fb_warn(info, "failed to register attributes (%d)\n", err);



	fb_info(info, "%s frame buffer device\n", info->fix.id);

	return 0;

out:
@@ -784,11 +785,6 @@ static int w100fb_remove(struct platform_device *pdev) 
	struct fb_info *info = platform_get_drvdata(pdev);

	struct w100fb_par *par=info->par;



	device_remove_file(&pdev->dev, &dev_attr_fastpllclk);

	device_remove_file(&pdev->dev, &dev_attr_reg_read);

	device_remove_file(&pdev->dev, &dev_attr_reg_write);

	device_remove_file(&pdev->dev, &dev_attr_flip);



	unregister_framebuffer(info);



	vfree(par->saved_intmem);
@@ -1625,6 +1621,7 @@ static struct platform_driver w100fb_driver = { 
	.resume		= w100fb_resume,

	.driver		= {

		.name	= "w100fb",

		.dev_groups	= w100fb_groups,

	},

};