From e14018cc34d633a55e8fabd2085f1da51d6c60fb Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 31 Jul 2019 14:43:48 +0200
Subject: video: fbdev: w100fb: convert platform driver to use dev_groups
Git-commit: e14018cc34d633a55e8fabd2085f1da51d6c60fb
Patch-mainline: v5.4-rc1
References: bsc#1152489
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: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190731124349.4474-10-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/video/fbdev/w100fb.c | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)
diff --git a/drivers/video/fbdev/w100fb.c b/drivers/video/fbdev/w100fb.c
index 597ffaa13cd2..3be07807edcd 100644
--- a/drivers/video/fbdev/w100fb.c
+++ b/drivers/video/fbdev/w100fb.c
@@ -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,
},
};
--
2.28.0