From 06bfa86eee805e49875a64a23f083aeeb5e39daa Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 10 May 2022 13:42:42 +0300 Subject: [PATCH] drm/i915/bios: Dump PNPID and panel name MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Dump the panel PNPID and name from the VBT. Reviewed-by: Jani Nikula Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220510104242.6099-16-ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/display/intel_bios.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index a18eedc..5765643 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -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]; -- 2.7.4