From 74a4dd2e4594804ffeb04b3e60ff4cfbf6b8ce10 Mon Sep 17 00:00:00 2001
From: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Date: Thu, 27 Sep 2012 19:13:04 +0530
Subject: [PATCH] drm/i915: Program correct m n tu register for Valleyview
m n tu register offset has changed in Valleyview. Also fixed DP limit
frequencies.
Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/intel_display.c | 6 +++---
drivers/gpu/drm/i915/intel_dp.c | 5 +++++
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 08c3f69bfc75..647898196693 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -393,10 +393,10 @@ static const intel_limit_t intel_limits_vlv_hdmi = {
};
static const intel_limit_t intel_limits_vlv_dp = {
- .dot = { .min = 162000, .max = 270000 },
- .vco = { .min = 5994000, .max = 4000000 },
+ .dot = { .min = 25000, .max = 270000 },
+ .vco = { .min = 4000000, .max = 6000000 },
.n = { .min = 1, .max = 7 },
- .m = { .min = 60, .max = 300 }, /* guess */
+ .m = { .min = 22, .max = 450 },
.m1 = { .min = 2, .max = 3 },
.m2 = { .min = 11, .max = 156 },
.p = { .min = 10, .max = 30 },
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 94945ce0048f..7fe9b9c72aab 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -805,6 +805,11 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
I915_WRITE(TRANSDATA_N1(pipe), m_n.gmch_n);
I915_WRITE(TRANSDPLINK_M1(pipe), m_n.link_m);
I915_WRITE(TRANSDPLINK_N1(pipe), m_n.link_n);
+ } else if (IS_VALLEYVIEW(dev)) {
+ I915_WRITE(PIPE_DATA_M1(pipe), TU_SIZE(m_n.tu) | m_n.gmch_m);
+ I915_WRITE(PIPE_DATA_N1(pipe), m_n.gmch_n);
+ I915_WRITE(PIPE_LINK_M1(pipe), m_n.link_m);
+ I915_WRITE(PIPE_LINK_N1(pipe), m_n.link_n);
} else {
I915_WRITE(PIPE_GMCH_DATA_M(pipe),
((m_n.tu - 1) << PIPE_GMCH_DATA_M_TU_SIZE_SHIFT) |
--
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