From 7ff0fca4964ff19d8e16669d8d3070018cecdd0f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Thu, 11 Jul 2019 10:31:00 -0700
Subject: drm/i915/tgl: Check if pipe D is fused
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Git-commit: 7ff0fca4964ff19d8e16669d8d3070018cecdd0f
Patch-mainline: v5.4-rc1
References: bsc#1152489
On Tiger Lake there is one more pipe - check if it's fused.
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190711173115.28296-7-lucas.demarchi@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_device_info.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 6fe3d74f99ff..94e76fa9d114 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7633,6 +7633,7 @@ enum {
#define SKL_DFSM_PIPE_A_DISABLE (1 << 30)
#define SKL_DFSM_PIPE_B_DISABLE (1 << 21)
#define SKL_DFSM_PIPE_C_DISABLE (1 << 28)
+#define TGL_DFSM_PIPE_D_DISABLE (1 << 22)
#define SKL_DSSM _MMIO(0x51004)
#define CNL_DSSM_CDCLK_PLL_REFCLK_24MHz (1 << 31)
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index e0d9a7a37994..f99c9fd497b2 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -938,6 +938,9 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
enabled_mask &= ~BIT(PIPE_B);
if (dfsm & SKL_DFSM_PIPE_C_DISABLE)
enabled_mask &= ~BIT(PIPE_C);
+ if (INTEL_GEN(dev_priv) >= 12 &&
+ (dfsm & TGL_DFSM_PIPE_D_DISABLE))
+ enabled_mask &= ~BIT(PIPE_D);
/*
* At least one pipe should be enabled and if there are
--
2.28.0