From 812b1d2fe527c3c68d04f379aef850dd02db5945 Mon Sep 17 00:00:00 2001 From: Bob Paauwe Date: Mon, 21 Nov 2016 14:24:06 -0800 Subject: [PATCH] drm/i915/bxt: Correct dual-link MIPI port control. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For BXT, there is only one bit that enables/disables dual-link mode and not different bits depending on which pipe is being used. Signed-off-by: Bob Paauwe Link: http://patchwork.freedesktop.org/patch/msgid/1479767046-3964-1-git-send-email-bob.j.paauwe@intel.com Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_dsi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 4e0d025490a3..a35c1412e43b 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -476,7 +476,10 @@ static void intel_dsi_port_enable(struct intel_encoder *encoder) if (intel_dsi->ports == (BIT(PORT_A) | BIT(PORT_C))) { temp |= (intel_dsi->dual_link - 1) << DUAL_LINK_MODE_SHIFT; - temp |= intel_crtc->pipe ? + if (IS_BROXTON(dev_priv)) + temp |= LANE_CONFIGURATION_DUAL_LINK_A; + else + temp |= intel_crtc->pipe ? LANE_CONFIGURATION_DUAL_LINK_B : LANE_CONFIGURATION_DUAL_LINK_A; } -- GitLab