From 3c1f2e63bb3c0da9e92675fb52f70b9b38304123 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Mon, 30 May 2016 16:20:48 +0300 Subject: [PATCH] drm/i915: Extract physical display dimensions from VBT MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The VBT has these mysterious H/V image sizes as part of the display timings. Looking at some dumps those appear to be the physical dimensions in mm. Which makes sense since the timing descriptor matches the format used by EDID detailed timing descriptor, which defines these as "H/V Addressable Video Image Size in mm". So let's use that information from the panel fixed mode to get the physical dimensions for DSI displays. And with that we can fill out the display_info so that userspace can get at it via GetConnector. TODO: Should do the same for other output types as well probably. Cc: Stephen Just Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96255 Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_bios.c | 5 +++++ drivers/gpu/drm/i915/intel_dsi.c | 3 +++ drivers/gpu/drm/i915/intel_vbt_defs.h | 7 ++++--- 3 files changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 624e755e451f..cb5024771b30 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -139,6 +139,11 @@ fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, else panel_fixed_mode->flags |= DRM_MODE_FLAG_NVSYNC; + panel_fixed_mode->width_mm = (dvo_timing->himage_hi << 4) + + dvo_timing->himage_lo; + panel_fixed_mode->height_mm = (dvo_timing->vimage_hi << 4) + + dvo_timing->vimage_lo; + /* Some VBTs have bogus h/vtotal values */ if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1; diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 4009618a5b34..d76943683a35 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -1578,6 +1578,9 @@ void intel_dsi_init(struct drm_device *dev) goto err; } + connector->display_info.width_mm = fixed_mode->width_mm; + connector->display_info.height_mm = fixed_mode->height_mm; + intel_panel_init(&intel_connector->panel, fixed_mode, NULL); intel_dsi_add_properties(intel_connector); diff --git a/drivers/gpu/drm/i915/intel_vbt_defs.h b/drivers/gpu/drm/i915/intel_vbt_defs.h index 4f9799f025a9..68db9621f1f0 100644 --- a/drivers/gpu/drm/i915/intel_vbt_defs.h +++ b/drivers/gpu/drm/i915/intel_vbt_defs.h @@ -403,9 +403,10 @@ struct lvds_dvo_timing { u8 vsync_off:4; u8 rsvd0:6; u8 hsync_off_hi:2; - u8 h_image; - u8 v_image; - u8 max_hv; + u8 himage_lo; + u8 vimage_lo; + u8 vimage_hi:4; + u8 himage_hi:4; u8 h_border; u8 v_border; u8 rsvd1:3; -- 2.7.4