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drm/i915/bios: Dump PNPID and panel name

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Dump the panel PNPID and name from the VBT.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-16-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2022-05-10 13:42:42 +03:00
parent 03e067bc73
commit 06bfa86eee
1 changed files with 23 additions and 0 deletions
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23
drivers/gpu/drm/i915/display/intel_bios.c
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@ -604,6 +604,19 @@ get_lfp_data_tail(const struct bdb_lvds_lfp_data *data,
return NULL;
}
static void dump_pnp_id(struct drm_i915_private *i915,
const struct lvds_pnp_id *pnp_id,
const char *name)
{
u16 mfg_name = be16_to_cpu((__force __be16)pnp_id->mfg_name);
char vend[4];
drm_dbg_kms(&i915->drm, "%s PNPID mfg: %s (0x%x), prod: %u, serial: %u, week: %d, year: %d\n",
name, drm_edid_decode_mfg_id(mfg_name, vend),
pnp_id->mfg_name, pnp_id->product_code, pnp_id->serial,
pnp_id->mfg_week, pnp_id->mfg_year + 1990);
}
static int opregion_get_panel_type(struct drm_i915_private *i915,
const struct intel_bios_encoder_data *devdata,
const struct edid *edid)
@ -655,6 +668,8 @@ static int pnpid_get_panel_type(struct drm_i915_private *i915,
edid_id_nodate.mfg_week = 0;
edid_id_nodate.mfg_year = 0;
dump_pnp_id(i915, edid_id, "EDID");
ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
if (!ptrs)
return -1;
@ -861,6 +876,7 @@ parse_lfp_data(struct drm_i915_private *i915,
const struct bdb_lvds_lfp_data *data;
const struct bdb_lvds_lfp_data_tail *tail;
const struct bdb_lvds_lfp_data_ptrs *ptrs;
const struct lvds_pnp_id *pnp_id;
int panel_type = panel->vbt.panel_type;
ptrs = find_section(i915, BDB_LVDS_LFP_DATA_PTRS);
@ -874,10 +890,17 @@ parse_lfp_data(struct drm_i915_private *i915,
if (!panel->vbt.lfp_lvds_vbt_mode)
parse_lfp_panel_dtd(i915, panel, data, ptrs);
pnp_id = get_lvds_pnp_id(data, ptrs, panel_type);
dump_pnp_id(i915, pnp_id, "Panel");
tail = get_lfp_data_tail(data, ptrs);
if (!tail)
return;
drm_dbg_kms(&i915->drm, "Panel name: %.*s\n",
(int)sizeof(tail->panel_name[0].name),
tail->panel_name[panel_type].name);
if (i915->display.vbt.version >= 188) {
panel->vbt.seamless_drrs_min_refresh_rate =
tail->seamless_drrs_min_refresh_rate[panel_type];