linux-kernel - [PATCH 5/9] drm/arc: use new debugfs device-centered functions

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Message-Id: <20221226155029.244355-6-mcanal@igalia.com>
Date:   Mon, 26 Dec 2022 12:50:25 -0300
From:   Maíra Canal <mcanal@...lia.com>
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     Melissa Wen <mwen@...lia.com>,
        André Almeida <andrealmeid@...lia.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        etnaviv@...ts.freedesktop.org, noralf@...nnes.org,
        Liviu Dudau <liviu.dudau@....com>,
        Brian Starkey <brian.starkey@....com>,
        Emma Anholt <emma@...olt.net>,
        Alexey Brodkin <abrodkin@...opsys.com>,
        David Airlie <airlied@...hat.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>,
        Tomi Valkeinen <tomba@...nel.org>,
        Maíra Canal <mcanal@...lia.com>
Subject: [PATCH 5/9] drm/arc: use new debugfs device-centered functions

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_file() function, which center the debugfs files
management on the drm_device instead of drm_minor. Moreover, remove the
debugfs_init hook and add the debugfs files directly on arcpgu_probe(),
before drm_dev_register().

Signed-off-by: Maíra Canal <mcanal@...lia.com>
---
 drivers/gpu/drm/tiny/arcpgu.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c
index 611bbee15071..b074a0b4c7b3 100644
--- a/drivers/gpu/drm/tiny/arcpgu.c
+++ b/drivers/gpu/drm/tiny/arcpgu.c
@@ -338,8 +338,8 @@ static int arcpgu_unload(struct drm_device *drm)
 #ifdef CONFIG_DEBUG_FS
 static int arcpgu_show_pxlclock(struct seq_file *m, void *arg)
 {
-	struct drm_info_node *node = (struct drm_info_node *)m->private;
-	struct drm_device *drm = node->minor->dev;
+	struct drm_debugfs_entry *entry = m->private;
+	struct drm_device *drm = entry->dev;
 	struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm);
 	unsigned long clkrate = clk_get_rate(arcpgu->clk);
 	unsigned long mode_clock = arcpgu->pipe.crtc.mode.crtc_clock * 1000;
@@ -348,17 +348,6 @@ static int arcpgu_show_pxlclock(struct seq_file *m, void *arg)
 	seq_printf(m, "mode: %lu\n", mode_clock);
 	return 0;
 }
-
-static struct drm_info_list arcpgu_debugfs_list[] = {
-	{ "clocks", arcpgu_show_pxlclock, 0 },
-};
-
-static void arcpgu_debugfs_init(struct drm_minor *minor)
-{
-	drm_debugfs_create_files(arcpgu_debugfs_list,
-				 ARRAY_SIZE(arcpgu_debugfs_list),
-				 minor->debugfs_root, minor);
-}
 #endif
 
 static const struct drm_driver arcpgu_drm_driver = {
@@ -371,9 +360,6 @@ static const struct drm_driver arcpgu_drm_driver = {
 	.patchlevel = 0,
 	.fops = &arcpgu_drm_ops,
 	DRM_GEM_DMA_DRIVER_OPS,
-#ifdef CONFIG_DEBUG_FS
-	.debugfs_init = arcpgu_debugfs_init,
-#endif
 };
 
 static int arcpgu_probe(struct platform_device *pdev)
@@ -390,6 +376,10 @@ static int arcpgu_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+#ifdef CONFIG_DEBUG_FS
+	drm_debugfs_add_file(&arcpgu->drm, "clocks", arcpgu_show_pxlclock, NULL);
+#endif
+
 	ret = drm_dev_register(&arcpgu->drm, 0);
 	if (ret)
 		goto err_unload;
-- 
2.38.1