From: Keith Packard <keithp@keithp.com>
Date: Mon, 26 Sep 2011 21:25:57 +0000 (-0700)
Subject: drm/i915: Document a few more BDB_GENERAL_FEATURES bits from PCH BIOS
X-Git-Tag: firefly_0821_release~3680^2~4279^2~2^2~44^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d2830bdb84fac6e84e45ffe1a4c9bec762295d7d;p=firefly-linux-kernel-4.4.55.git

drm/i915: Document a few more BDB_GENERAL_FEATURES bits from PCH BIOS

This includes whether an eDP panel is present, and whether that should
use SSC (and at what frequency)

Signed-off-by: Keith Packard <keithp@keithp.com>
---

diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index 02b1b62415df..72fb500bf39f 100644
--- a/drivers/gpu/drm/i915/intel_bios.h
+++ b/drivers/gpu/drm/i915/intel_bios.h
@@ -135,7 +135,10 @@ struct bdb_general_features {
         /* bits 5 */
 	u8 int_crt_support:1;
 	u8 int_tv_support:1;
-	u8 rsvd11:6; /* finish byte */
+	u8 int_efp_support:1;
+	u8 dp_ssc_enb:1;	/* PCH attached eDP supports SSC */
+	u8 dp_ssc_freq:1;	/* SSC freq for PCH attached eDP */
+	u8 rsvd11:3; /* finish byte */
 } __attribute__((packed));
 
 /* pre-915 */