linux-kernel - [PATCH 4/9] drm/i915: Document a few more BDB_GENERAL

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Date:	Mon, 26 Sep 2011 23:11:41 -0700
From:	Keith Packard <keithp@...thp.com>
To:	Dave Airlie <airlied@...hat.com>
Cc:	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	intel-gfx@...ts.freedesktop.org, Keith Packard <keithp@...thp.com>
Subject: [PATCH 4/9] 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@...thp.com>
---
 drivers/gpu/drm/i915/intel_bios.h |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h
index 02b1b624..72fb500 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 */
-- 
1.7.6.3

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