drv/i915: Pull display_clock_mode out of VBT table

This tells the driver whether a CK505 clock source is available on
pre-PCH hardware. If so, it should be used as the non-SSC source,
leaving the internal clock for use as the SSC source.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Chris Wison <chris@chris-wilson.co.uk>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index 5f8e4edcbbb9..02b1b62415df 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -120,7 +120,9 @@ struct bdb_general_features {
         u8 ssc_freq:1;
         u8 enable_lfp_on_override:1;
         u8 disable_ssc_ddt:1;
-        u8 rsvd8:3; /* finish byte */
+        u8 rsvd7:1;
+        u8 display_clock_mode:1;
+        u8 rsvd8:1; /* finish byte */
 
         /* bits 3 */
         u8 disable_smooth_vision:1;