diff options
| author | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2025-02-26 22:23:52 +0100 |
|---|---|---|
| committer | Louis Chauvet <louis.chauvet@bootlin.com> | 2025-03-12 10:50:32 +0100 |
| commit | 9497c5a0f7c26ff81f11df738a94c6b80f890c0a (patch) | |
| tree | 0eaf7138632c6421a905fe87ee78e66a6e89885e /drivers/gpu/drm/drm_bridge.c | |
| parent | 6374a1005f20c1c2f7bbcc1bc735c2be4910a685 (diff) | |
drm/bridge: move bridges_show logic from drm_debugfs.c
In preparation to expose more info about bridges in debugfs, which will
require more insight into drm_bridge data structures, move the bridges_show
code to drm_bridge.c.
Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250226-drm-debugfs-show-all-bridges-v8-1-bb511cc49d83@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
Diffstat (limited to 'drivers/gpu/drm/drm_bridge.c')
| -rw-r--r-- | drivers/gpu/drm/drm_bridge.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index fa2794217a90..3e23e1f0394d 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -21,6 +21,7 @@ * DEALINGS IN THE SOFTWARE. */ +#include <linux/debugfs.h> #include <linux/err.h> #include <linux/media-bus-format.h> #include <linux/module.h> @@ -1300,6 +1301,47 @@ struct drm_bridge *of_drm_find_bridge(struct device_node *np) EXPORT_SYMBOL(of_drm_find_bridge); #endif +static int encoder_bridges_show(struct seq_file *m, void *data) +{ + struct drm_encoder *encoder = m->private; + struct drm_printer p = drm_seq_file_printer(m); + struct drm_bridge *bridge; + unsigned int idx = 0; + + drm_for_each_bridge_in_chain(encoder, bridge) { + drm_printf(&p, "bridge[%u]: %ps\n", idx++, bridge->funcs); + drm_printf(&p, "\ttype: [%d] %s\n", + bridge->type, + drm_get_connector_type_name(bridge->type)); + + if (bridge->of_node) + drm_printf(&p, "\tOF: %pOFfc\n", bridge->of_node); + + drm_printf(&p, "\tops: [0x%x]", bridge->ops); + if (bridge->ops & DRM_BRIDGE_OP_DETECT) + drm_puts(&p, " detect"); + if (bridge->ops & DRM_BRIDGE_OP_EDID) + drm_puts(&p, " edid"); + if (bridge->ops & DRM_BRIDGE_OP_HPD) + drm_puts(&p, " hpd"); + if (bridge->ops & DRM_BRIDGE_OP_MODES) + drm_puts(&p, " modes"); + if (bridge->ops & DRM_BRIDGE_OP_HDMI) + drm_puts(&p, " hdmi"); + drm_puts(&p, "\n"); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(encoder_bridges); + +void drm_bridge_debugfs_encoder_params(struct dentry *root, + struct drm_encoder *encoder) +{ + /* bridges list */ + debugfs_create_file("bridges", 0444, root, encoder, &encoder_bridges_fops); +} + MODULE_AUTHOR("Ajay Kumar <ajaykumar.rs@samsung.com>"); MODULE_DESCRIPTION("DRM bridge infrastructure"); MODULE_LICENSE("GPL and additional rights"); |