drm/i915: Remove PCH type checks from ironlake_crtc_compute_clock()

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 <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1458576016-30348-8-git-send-email-ander.conselvan.de.oliveira@intel.com

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2df5dbf..c6920fc 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -8797,7 +8797,6 @@ 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;
@@ -8809,9 +8808,6 @@ 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,