Commit b3b095b3 authored by Zhenyu Wang's avatar Zhenyu Wang Committed by Eric Anholt
Browse files

drm/i915: enable LVDS on Cougarpoint 



Fix the transcoder select bit for LVDS on CPT.

Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: default avatarEric Anholt <eric@anholt.net>
parent a4a6b901

drivers/gpu/drm/i915/intel_display.c

+11 −4
Original line number Diff line number Diff line
@@ -3492,10 +3492,17 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, 


		lvds = I915_READ(lvds_reg);

		lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;

		if (pipe == 1)

		if (pipe == 1) {

			if (HAS_PCH_CPT(dev))

				lvds |= PORT_TRANS_B_SEL_CPT;

			else

				lvds |= LVDS_PIPEB_SELECT;

		} else {

			if (HAS_PCH_CPT(dev))

				lvds &= ~PORT_TRANS_SEL_MASK;

			else

				lvds &= ~LVDS_PIPEB_SELECT;

		}

		/* set the corresponsding LVDS_BORDER bit */

		lvds |= dev_priv->lvds_border_bits;

		/* Set the B0-B3 data pairs corresponding to whether we're going to

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