linux-kernel - [PATCH 4/9] drm/pl111: use new debugfs device-centered functions

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Date:   Mon, 26 Dec 2022 12:50:24 -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 4/9] drm/pl111: 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 pl111_amba_probe(),
before drm_dev_register().

Signed-off-by: Maíra Canal <mcanal@...lia.com>
---
 drivers/gpu/drm/pl111/pl111_debugfs.c | 15 ++++-----------
 drivers/gpu/drm/pl111/pl111_drm.h     |  2 +-
 drivers/gpu/drm/pl111/pl111_drv.c     |  6 ++----
 3 files changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/pl111/pl111_debugfs.c b/drivers/gpu/drm/pl111/pl111_debugfs.c
index 6744fa16f464..458f69e5435e 100644
--- a/drivers/gpu/drm/pl111/pl111_debugfs.c
+++ b/drivers/gpu/drm/pl111/pl111_debugfs.c
@@ -32,8 +32,8 @@ static const struct {
 
 static int pl111_debugfs_regs(struct seq_file *m, void *unused)
 {
-	struct drm_info_node *node = (struct drm_info_node *)m->private;
-	struct drm_device *dev = node->minor->dev;
+	struct drm_debugfs_entry *entry = m->private;
+	struct drm_device *dev = entry->dev;
 	struct pl111_drm_dev_private *priv = dev->dev_private;
 	int i;
 
@@ -46,14 +46,7 @@ static int pl111_debugfs_regs(struct seq_file *m, void *unused)
 	return 0;
 }
 
-static const struct drm_info_list pl111_debugfs_list[] = {
-	{"regs", pl111_debugfs_regs, 0},
-};
-
-void
-pl111_debugfs_init(struct drm_minor *minor)
+void pl111_debugfs_init(struct drm_device *drm)
 {
-	drm_debugfs_create_files(pl111_debugfs_list,
-				 ARRAY_SIZE(pl111_debugfs_list),
-				 minor->debugfs_root, minor);
+	drm_debugfs_add_file(drm, "regs", pl111_debugfs_regs, NULL);
 }
diff --git a/drivers/gpu/drm/pl111/pl111_drm.h b/drivers/gpu/drm/pl111/pl111_drm.h
index 2a46b5bd8576..7fe74be917f1 100644
--- a/drivers/gpu/drm/pl111/pl111_drm.h
+++ b/drivers/gpu/drm/pl111/pl111_drm.h
@@ -157,6 +157,6 @@ struct pl111_drm_dev_private {
 
 int pl111_display_init(struct drm_device *dev);
 irqreturn_t pl111_irq(int irq, void *data);
-void pl111_debugfs_init(struct drm_minor *minor);
+void pl111_debugfs_init(struct drm_device *drm);
 
 #endif /* _PL111_DRM_H_ */
diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
index 00deba0b7271..c031eb4abc0d 100644
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -228,10 +228,6 @@ static const struct drm_driver pl111_drm_driver = {
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_import_sg_table = pl111_gem_import_sg_table,
 	.gem_prime_mmap = drm_gem_prime_mmap,
-
-#if defined(CONFIG_DEBUG_FS)
-	.debugfs_init = pl111_debugfs_init,
-#endif
 };
 
 static int pl111_amba_probe(struct amba_device *amba_dev,
@@ -304,6 +300,8 @@ static int pl111_amba_probe(struct amba_device *amba_dev,
 	if (ret != 0)
 		goto dev_put;
 
+	pl111_debugfs_init(drm);
+
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0)
 		goto dev_put;
-- 
2.38.1