The checks were added in commit 5dc5298bb3e5 ("drm/i915: add proper
CPU/PCH checks to crtc_mode_set functions") in a time when there was
doubts on what PCHs would be supported by HSW. There are similar checks
for PCH type in intel_detect_pch() and the function pointers are
initialized based on platform/pch information, so the removed WARN can't
ever be reached.

v2: Rebase without patch that drops lvds downclock code. (Ville)
Signed-off-by: Ander Conselvan de Oliveira 
<[email protected]>
---
 drivers/gpu/drm/i915/intel_display.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index bf0416d..212c53c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8886,7 +8886,6 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc 
*intel_crtc,
 static int ironlake_crtc_compute_clock(struct intel_crtc *crtc,
                                       struct intel_crtc_state *crtc_state)
 {
-       struct drm_device *dev = crtc->base.dev;
        intel_clock_t clock, reduced_clock;
        u32 dpll = 0, fp = 0, fp2 = 0;
        bool has_reduced_clock = false;
@@ -8898,9 +8897,6 @@ static int ironlake_crtc_compute_clock(struct intel_crtc 
*crtc,
 
        is_lvds = intel_pipe_will_have_type(crtc_state, INTEL_OUTPUT_LVDS);
 
-       WARN(!(HAS_PCH_IBX(dev) || HAS_PCH_CPT(dev)),
-            "Unexpected PCH type %d\n", INTEL_PCH_TYPE(dev));
-
        if (!crtc_state->clock_set) {
                if (!ironlake_compute_clocks(&crtc->base, crtc_state, &clock,
                                             &has_reduced_clock,
-- 
2.4.3

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