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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>
This commit is contained in:
Vijay Purushothaman 2012-09-27 19:13:04 +05:30 committed by Daniel Vetter
parent b56747aace
commit 74a4dd2e45
2 changed files with 8 additions and 3 deletions
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6
drivers/gpu/drm/i915/intel_display.c
View File

@ -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 },

5
drivers/gpu/drm/i915/intel_dp.c
View File

@ -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) |