Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Core:
   - shared fencing staging removal
   - drop transactional atomic helpers and move helpers to new location
   - DP/MST atomic cleanup
   - Leasing cleanups and drop EXPORT_SYMBOL
   - Convert drivers to atomic helpers and generic fbdev.
   - removed deprecated obj_ref/unref in favour of get/put
   - Improve dumb callback documentation
   - MODESET_LOCK_BEGIN/END helpers

  panels:
   - CDTech panels, Banana Pi Panel, DLC1010GIG,
   - Olimex LCD-O-LinuXino, Samsung S6D16D0, Truly NT35597 WQXGA,
   - Himax HX8357D, simulated RTSM AEMv8.
   - GPD Win2 panel
   - AUO G101EVN010

  vgem:
   - render node support

  ttm:
   - move global init out of drivers
   - fix LRU handling for ghost objects
   - Support for simultaneous submissions to multiple engines

  scheduler:
   - timeout/fault handling changes to help GPU recovery
   - helpers for hw with preemption support

  i915:
   - Scaler/Watermark fixes
   - DP MST + powerwell fixes
   - PSR fixes
   - Break long get/put shmemfs pages
   - Icelake fixes
   - Icelake DSI video mode enablement
   - Engine workaround improvements

  amdgpu:
   - freesync support
   - GPU reset enabled on CI, VI, SOC15 dGPUs
   - ABM support in DC
   - KFD support for vega12/polaris12
   - SDMA paging queue on vega
   - More amdkfd code sharing
   - DCC scanout on GFX9
   - DC kerneldoc
   - Updated SMU firmware for GFX8 chips
   - XGMI PSP + hive reset support
   - GPU reset
   - DC trace support
   - Powerplay updates for newer Polaris
   - Cursor plane update fast path
   - kfd dma-buf support

  virtio-gpu:
   - add EDID support

  vmwgfx:
   - pageflip with damage support

  nouveau:
   - Initial Turing TU104/TU106 modesetting support

  msm:
   - a2xx gpu support for apq8060 and imx5
   - a2xx gpummu support
   - mdp4 display support for apq8060
   - DPU fixes and cleanups
   - enhanced profiling support
   - debug object naming interface
   - get_iova/page pinning decoupling

  tegra:
   - Tegra194 host1x, VIC and display support enabled
   - Audio over HDMI for Tegra186 and Tegra194

  exynos:
   - DMA/IOMMU refactoring
   - plane alpha + blend mode support
   - Color format fixes for mixer driver

  rcar-du:
   - R8A7744 and R8A77470 support
   - R8A77965 LVDS support

  imx:
   - fbdev emulation fix
   - multi-tiled scalling fixes
   - SPDX identifiers

  rockchip
   - dw_hdmi support
   - dw-mipi-dsi + dual dsi support
   - mailbox read size fix

  qxl:
   - fix cursor pinning

  vc4:
   - YUV support (scaling + cursor)

  v3d:
   - enable TFU (Texture Formatting Unit)

  mali-dp:
   - add support for linear tiled formats

  sun4i:
   - Display Engine 3 support
   - H6 DE3 mixer 0 support
   - H6 display engine support
   - dw-hdmi support
   - H6 HDMI phy support
   - implicit fence waiting
   - BGRX8888 support

  meson:
   - Overlay plane support
   - implicit fence waiting
   - HDMI 1.4 4k modes

  bridge:
   - i2c fixes for sii902x"

* tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm: (1403 commits)
  drm/amd/display: Add fast path for cursor plane updates
  drm/amdgpu: Enable GPU recovery by default for CI
  drm/amd/display: Fix duplicating scaling/underscan connector state
  drm/amd/display: Fix unintialized max_bpc state values
  Revert "drm/amd/display: Set RMX_ASPECT as default"
  drm/amdgpu: Fix stub function name
  drm/msm/dpu: Fix clock issue after bind failure
  drm/msm/dpu: Clean up dpu_media_info.h static inline functions
  drm/msm/dpu: Further cleanups for static inline functions
  drm/msm/dpu: Cleanup the debugfs functions
  drm/msm/dpu: Remove dpu_irq and unused functions
  drm/msm: Make irq_postinstall optional
  drm/msm/dpu: Cleanup callers of dpu_hw_blk_init
  drm/msm/dpu: Remove unused functions
  drm/msm/dpu: Remove dpu_crtc_is_enabled()
  drm/msm/dpu: Remove dpu_crtc_get_mixer_height
  drm/msm/dpu: Remove dpu_dbg
  drm/msm: dpu: Remove crtc_lock
  drm/msm: dpu: Remove vblank_requested flag from dpu_crtc
  drm/msm: dpu: Separate crtc assignment from vblank enable
  ...

1 files changed, 93 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c
index d4589470985c..fdda8aa8e303 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c
@@ -88,3 +88,96 @@ uint32_t bios_get_vga_enabled_displays(
 	return active_disp;
 }
 
+bool bios_is_active_display(
+		struct dc_bios *bios,
+		enum signal_type signal,
+		const struct connector_device_tag_info *device_tag)
+{
+	uint32_t active = 0;
+	uint32_t connected = 0;
+	uint32_t bios_scratch_0 = 0;
+	uint32_t bios_scratch_3 = 0;
+
+	switch (signal)	{
+	case SIGNAL_TYPE_DVI_SINGLE_LINK:
+	case SIGNAL_TYPE_DVI_DUAL_LINK:
+	case SIGNAL_TYPE_HDMI_TYPE_A:
+	case SIGNAL_TYPE_DISPLAY_PORT:
+	case SIGNAL_TYPE_DISPLAY_PORT_MST:
+		{
+			if (device_tag->dev_id.device_type == DEVICE_TYPE_DFP) {
+				switch (device_tag->dev_id.enum_id)	{
+				case 1:
+					{
+						active    = ATOM_S3_DFP1_ACTIVE;
+						connected = 0x0008;	//ATOM_DISPLAY_DFP1_CONNECT
+					}
+					break;
+
+				case 2:
+					{
+						active    = ATOM_S3_DFP2_ACTIVE;
+						connected = 0x0080; //ATOM_DISPLAY_DFP2_CONNECT
+					}
+					break;
+
+				case 3:
+					{
+						active    = ATOM_S3_DFP3_ACTIVE;
+						connected = 0x0200; //ATOM_DISPLAY_DFP3_CONNECT
+					}
+					break;
+
+				case 4:
+					{
+						active    = ATOM_S3_DFP4_ACTIVE;
+						connected = 0x0400;	//ATOM_DISPLAY_DFP4_CONNECT
+					}
+					break;
+
+				case 5:
+					{
+						active    = ATOM_S3_DFP5_ACTIVE;
+						connected = 0x0800; //ATOM_DISPLAY_DFP5_CONNECT
+					}
+					break;
+
+				case 6:
+					{
+						active    = ATOM_S3_DFP6_ACTIVE;
+						connected = 0x0040; //ATOM_DISPLAY_DFP6_CONNECT
+					}
+					break;
+
+				default:
+					break;
+				}
+				}
+			}
+			break;
+
+	case SIGNAL_TYPE_LVDS:
+	case SIGNAL_TYPE_EDP:
+		{
+			active    = ATOM_S3_LCD1_ACTIVE;
+			connected = 0x0002;	//ATOM_DISPLAY_LCD1_CONNECT
+		}
+		break;
+
+	default:
+		break;
+	}
+
+
+	if (bios->regs->BIOS_SCRATCH_0) /*follow up with other asic, todo*/
+		bios_scratch_0 = REG_READ(BIOS_SCRATCH_0);
+	if (bios->regs->BIOS_SCRATCH_3) /*follow up with other asic, todo*/
+		bios_scratch_3 = REG_READ(BIOS_SCRATCH_3);
+
+	bios_scratch_3 &= ATOM_S3_DEVICE_ACTIVE_MASK;
+	if ((active & bios_scratch_3) && (connected & bios_scratch_0))
+		return true;
+
+	return false;
+}
+