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author | Russell King <rmk+kernel@armlinux.org.uk> | 2018-07-07 16:53:39 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-06-28 14:50:07 +0100 |
commit | 06734cb0ab007d0b6810b98458688c3acdd9c962 (patch) | |
tree | e4b5141d7a9b12602f0d343436bcddf45dcb6d8a /drivers/gpu/drm/armada | |
parent | d880fa6627483822bee2ebf170901ad51623b9a2 (diff) | |
download | linux-06734cb0ab007d0b6810b98458688c3acdd9c962.tar.gz linux-06734cb0ab007d0b6810b98458688c3acdd9c962.tar.bz2 linux-06734cb0ab007d0b6810b98458688c3acdd9c962.zip |
drm/armada: redo CRTC debugfs files
Move the CRTC debugfs files into the CRTC specific directory.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'drivers/gpu/drm/armada')
-rw-r--r-- | drivers/gpu/drm/armada/armada_crtc.c | 9 | ||||
-rw-r--r-- | drivers/gpu/drm/armada/armada_debugfs.c | 98 | ||||
-rw-r--r-- | drivers/gpu/drm/armada/armada_drm.h | 1 |
3 files changed, 48 insertions, 60 deletions
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index 5de7ae7c0d76..2e17d7e72eeb 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -774,6 +774,14 @@ static void armada_drm_crtc_destroy(struct drm_crtc *crtc) kfree(dcrtc); } +static int armada_drm_crtc_late_register(struct drm_crtc *crtc) +{ + if (IS_ENABLED(CONFIG_DEBUG_FS)) + armada_drm_crtc_debugfs_init(drm_to_armada_crtc(crtc)); + + return 0; +} + /* These are called under the vbl_lock. */ static int armada_drm_crtc_enable_vblank(struct drm_crtc *crtc) { @@ -806,6 +814,7 @@ static const struct drm_crtc_funcs armada_crtc_funcs = { .page_flip = drm_atomic_helper_page_flip, .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, + .late_register = armada_drm_crtc_late_register, .enable_vblank = armada_drm_crtc_enable_vblank, .disable_vblank = armada_drm_crtc_disable_vblank, }; diff --git a/drivers/gpu/drm/armada/armada_debugfs.c b/drivers/gpu/drm/armada/armada_debugfs.c index 6758c3a83de2..4dcce002ea2a 100644 --- a/drivers/gpu/drm/armada/armada_debugfs.c +++ b/drivers/gpu/drm/armada/armada_debugfs.c @@ -28,50 +28,33 @@ static int armada_debugfs_gem_linear_show(struct seq_file *m, void *data) return 0; } -static int armada_debugfs_reg_show(struct seq_file *m, void *data) +static int armada_debugfs_crtc_reg_show(struct seq_file *m, void *data) { - struct drm_device *dev = m->private; - struct armada_private *priv = dev->dev_private; - int n, i; - - if (priv) { - for (n = 0; n < ARRAY_SIZE(priv->dcrtc); n++) { - struct armada_crtc *dcrtc = priv->dcrtc[n]; - if (!dcrtc) - continue; - - for (i = 0x84; i <= 0x1c4; i += 4) { - uint32_t v = readl_relaxed(dcrtc->base + i); - seq_printf(m, "%u: 0x%04x: 0x%08x\n", n, i, v); - } - } + struct armada_crtc *dcrtc = m->private; + int i; + + for (i = 0x84; i <= 0x1c4; i += 4) { + u32 v = readl_relaxed(dcrtc->base + i); + seq_printf(m, "0x%04x: 0x%08x\n", i, v); } return 0; } -static int armada_debugfs_reg_r_open(struct inode *inode, struct file *file) +static int armada_debugfs_crtc_reg_open(struct inode *inode, struct file *file) { - return single_open(file, armada_debugfs_reg_show, inode->i_private); + return single_open(file, armada_debugfs_crtc_reg_show, + inode->i_private); } -static const struct file_operations fops_reg_r = { - .owner = THIS_MODULE, - .open = armada_debugfs_reg_r_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int armada_debugfs_write(struct file *file, const char __user *ptr, - size_t len, loff_t *off) +static int armada_debugfs_crtc_reg_write(struct file *file, + const char __user *ptr, size_t len, loff_t *off) { - struct drm_device *dev = file->private_data; - struct armada_private *priv = dev->dev_private; - struct armada_crtc *dcrtc = priv->dcrtc[0]; - char buf[32], *p; - uint32_t reg, val; + struct armada_crtc *dcrtc; + unsigned long reg, mask, val; + char buf[32]; int ret; + u32 v; if (*off != 0) return 0; @@ -84,24 +67,35 @@ static int armada_debugfs_write(struct file *file, const char __user *ptr, return ret; buf[len] = '\0'; - reg = simple_strtoul(buf, &p, 16); - if (!isspace(*p)) + if (sscanf(buf, "%lx %lx %lx", ®, &mask, &val) != 3) return -EINVAL; - val = simple_strtoul(p + 1, NULL, 16); + if (reg < 0x84 || reg > 0x1c4 || reg & 3) + return -ERANGE; - if (reg >= 0x84 && reg <= 0x1c4) - writel(val, dcrtc->base + reg); + dcrtc = ((struct seq_file *)file->private_data)->private; + v = readl(dcrtc->base + reg); + v &= ~mask; + v |= val & mask; + writel(v, dcrtc->base + reg); return len; } -static const struct file_operations fops_reg_w = { +static const struct file_operations armada_debugfs_crtc_reg_fops = { .owner = THIS_MODULE, - .open = simple_open, - .write = armada_debugfs_write, - .llseek = noop_llseek, + .open = armada_debugfs_crtc_reg_open, + .read = seq_read, + .write = armada_debugfs_crtc_reg_write, + .llseek = seq_lseek, + .release = single_release, }; +void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc) +{ + debugfs_create_file("armada-regs", 0600, dcrtc->crtc.debugfs_entry, + dcrtc, &armada_debugfs_crtc_reg_fops); +} + static struct drm_info_list armada_debugfs_list[] = { { "gem_linear", armada_debugfs_gem_linear_show, 0 }, }; @@ -109,24 +103,8 @@ static struct drm_info_list armada_debugfs_list[] = { int armada_drm_debugfs_init(struct drm_minor *minor) { - struct dentry *de; - int ret; - - ret = drm_debugfs_create_files(armada_debugfs_list, - ARMADA_DEBUGFS_ENTRIES, - minor->debugfs_root, minor); - if (ret) - return ret; - - de = debugfs_create_file("reg", S_IFREG | S_IRUSR, - minor->debugfs_root, minor->dev, &fops_reg_r); - if (!de) - return -ENOMEM; - - de = debugfs_create_file("reg_wr", S_IFREG | S_IWUSR, - minor->debugfs_root, minor->dev, &fops_reg_w); - if (!de) - return -ENOMEM; + drm_debugfs_create_files(armada_debugfs_list, ARMADA_DEBUGFS_ENTRIES, + minor->debugfs_root, minor); return 0; } diff --git a/drivers/gpu/drm/armada/armada_drm.h b/drivers/gpu/drm/armada/armada_drm.h index f09083ff15d3..b6307235f320 100644 --- a/drivers/gpu/drm/armada/armada_drm.h +++ b/drivers/gpu/drm/armada/armada_drm.h @@ -78,6 +78,7 @@ void armada_fbdev_fini(struct drm_device *); int armada_overlay_plane_create(struct drm_device *, unsigned long); +void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc); int armada_drm_debugfs_init(struct drm_minor *); #endif |