Commit 06bfa86e authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915/bios: Dump PNPID and panel name 



Dump the panel PNPID and name from the VBT.

Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-16-ville.syrjala@linux.intel.com
parent 03e067bc

drivers/gpu/drm/i915/display/intel_bios.c

+23 −0
Original line number Diff line number Diff line
@@ -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];