445b287e18
The vc4 has a custom API to allow components to register a debugfs file before the DRM driver has been registered and the debugfs_init hook has been called. However, the .late_register hook allows to have the debugfs file creation deferred after that time already. Let's remove our custom code to only register later our debugfs entries as part of either debugfs_init or after it. Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20220711173939.1132294-65-maxime@cerno.tech
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright © 2014 Broadcom
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*/
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#include <drm/drm_drv.h>
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#include <linux/seq_file.h>
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#include <linux/circ_buf.h>
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#include <linux/ctype.h>
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#include <linux/debugfs.h>
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#include <linux/platform_device.h>
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#include "vc4_drv.h"
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#include "vc4_regs.h"
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/*
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* Called at drm_dev_register() time on each of the minors registered
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* by the DRM device, to attach the debugfs files.
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*/
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void
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vc4_debugfs_init(struct drm_minor *minor)
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{
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struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
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struct drm_device *drm = &vc4->base;
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drm_WARN_ON(drm, vc4_hvs_debugfs_init(minor));
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if (vc4->v3d) {
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drm_WARN_ON(drm, vc4_bo_debugfs_init(minor));
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drm_WARN_ON(drm, vc4_v3d_debugfs_init(minor));
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}
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}
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static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
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{
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struct drm_info_node *node = (struct drm_info_node *)m->private;
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struct drm_device *drm = node->minor->dev;
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struct debugfs_regset32 *regset = node->info_ent->data;
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struct drm_printer p = drm_seq_file_printer(m);
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int idx;
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if (!drm_dev_enter(drm, &idx))
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return -ENODEV;
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drm_print_regset32(&p, regset);
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drm_dev_exit(idx);
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return 0;
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}
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int vc4_debugfs_add_file(struct drm_minor *minor,
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const char *name,
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int (*show)(struct seq_file*, void*),
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void *data)
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{
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struct drm_device *dev = minor->dev;
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struct dentry *root = minor->debugfs_root;
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struct drm_info_list *file;
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file = drmm_kzalloc(dev, sizeof(*file), GFP_KERNEL);
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if (!file)
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return -ENOMEM;
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file->name = name;
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file->show = show;
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file->data = data;
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drm_debugfs_create_files(file, 1, root, minor);
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return 0;
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}
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int vc4_debugfs_add_regset32(struct drm_minor *minor,
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const char *name,
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struct debugfs_regset32 *regset)
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{
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return vc4_debugfs_add_file(minor, name, vc4_debugfs_regset32, regset);
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}
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