diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2025-10-29 10:46:03 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2025-10-31 12:46:34 +0200 |
| commit | 427c69c7d4bc999a3661e028e9688f77fa3e17ed (patch) | |
| tree | 2c412ec8f8e43ba679b6ec81410c053a0f269488 /drivers/gpu/drm | |
| parent | 23db1577ce2d6e6b1d1c8447dcc136dd2d443bd9 (diff) | |
drm/i915/dsi: debug log send packet sequence contents
This might help debug issues better than just debug logging the function
name.
v2: Debug log type as hex (Ville)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251029084603.2254982-2-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c index 63837406d99b..fac8729e442c 100644 --- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c @@ -107,8 +107,7 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, u16 len; enum port port; ssize_t ret; - - drm_dbg_kms(display->drm, "\n"); + bool hs_mode; flags = *data++; type = *data++; @@ -130,13 +129,18 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, goto out; } - if ((flags >> MIPI_TRANSFER_MODE_SHIFT) & 1) + hs_mode = (flags >> MIPI_TRANSFER_MODE_SHIFT) & 1; + if (hs_mode) dsi_device->mode_flags &= ~MIPI_DSI_MODE_LPM; else dsi_device->mode_flags |= MIPI_DSI_MODE_LPM; dsi_device->channel = (flags >> MIPI_VIRTUAL_CHANNEL_SHIFT) & 3; + drm_dbg_kms(display->drm, "DSI packet: Port %c (seq %u), Flags 0x%02x, VC %u, %s, Type 0x%02x, Length %u, Data %*ph\n", + port_name(port), seq_port, flags, dsi_device->channel, + hs_mode ? "HS" : "LP", type, len, (int)len, data); + switch (type) { case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM: ret = mipi_dsi_generic_write(dsi_device, NULL, 0); |