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drm/i915: mst topology dumper in debugfs (v0.2)

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use the mst helper code to dump the topology in debugfs.

v0.2: drop is_mst check - as we want to dump other info

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2014-05-12 15:22:27 +10:00
parent 0e32b39cee
commit 11bed958b7
1 changed files with 23 additions and 0 deletions
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23
drivers/gpu/drm/i915/i915_debugfs.c
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@ -2405,6 +2405,28 @@ struct pipe_crc_info {
enum pipe pipe;
};
static int i915_dp_mst_info(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_encoder *encoder;
struct intel_encoder *intel_encoder;
struct intel_digital_port *intel_dig_port;
drm_modeset_lock_all(dev);
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
intel_encoder = to_intel_encoder(encoder);
if (intel_encoder->type != INTEL_OUTPUT_DISPLAYPORT)
continue;
intel_dig_port = enc_to_dig_port(encoder);
if (!intel_dig_port->dp.can_mst)
continue;
drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
}
drm_modeset_unlock_all(dev);
return 0;
}
static int i915_pipe_crc_open(struct inode *inode, struct file *filep)
{
struct pipe_crc_info *info = inode->i_private;
@ -3906,6 +3928,7 @@ static const struct drm_info_list i915_debugfs_list[] = {
{"i915_display_info", i915_display_info, 0},
{"i915_semaphore_status", i915_semaphore_status, 0},
{"i915_shared_dplls_info", i915_shared_dplls_info, 0},
{"i915_dp_mst_info", i915_dp_mst_info, 0},
};
#define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)