sdm: Add defaults if panel dimensions are not specified
If panel dimensions are not specified by the driver, use 320dpi as
default.
Change-Id: I6034acfcb13500fc561e8cce1ecae2fb76420eca
CRs-fixed: 2060568
diff --git a/sdm/libs/core/drm/hw_device_drm.cpp b/sdm/libs/core/drm/hw_device_drm.cpp
index 8432f9b..712ee85 100644
--- a/sdm/libs/core/drm/hw_device_drm.cpp
+++ b/sdm/libs/core/drm/hw_device_drm.cpp
@@ -423,6 +423,13 @@
topology == DRMTopology::DUAL_LM_DSCMERGE);
display_attributes_.h_total += display_attributes_.is_device_split ? h_blanking : 0;
+ // If driver doesn't return panel width/height information, default to 320 dpi
+ if (INT(mm_width) <= 0 || INT(mm_height) <= 0) {
+ mm_width = UINT32(((FLOAT(mode.hdisplay) * 25.4f) / 320.0f) + 0.5f);
+ mm_height = UINT32(((FLOAT(mode.vdisplay) * 25.4f) / 320.0f) + 0.5f);
+ DLOGW("Driver doesn't report panel physical width and height - defaulting to 320dpi");
+ }
+
display_attributes_.x_dpi = (FLOAT(mode.hdisplay) * 25.4f) / FLOAT(mm_width);
display_attributes_.y_dpi = (FLOAT(mode.vdisplay) * 25.4f) / FLOAT(mm_height);