drm/i915: remove i915_delayedfreq_table debugfs entry

CHV hard hangs on reading these registers. As these have not
been used since cantiga & ilk, remove the debugfs entry.

References: https://bugs.freedesktop.org/show_bug.cgi?id=80893
Suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index b3b56c4..6d471e1 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1158,32 +1158,6 @@ out:
        return ret;
 }
 
-static int i915_delayfreq_table(struct seq_file *m, void *unused)
-{
-       struct drm_info_node *node = m->private;
-       struct drm_device *dev = node->minor->dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 delayfreq;
-       int ret, i;
-
-       ret = mutex_lock_interruptible(&dev->struct_mutex);
-       if (ret)
-               return ret;
-       intel_runtime_pm_get(dev_priv);
-
-       for (i = 0; i < 16; i++) {
-               delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
-               seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq,
-                          (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
-       }
-
-       intel_runtime_pm_put(dev_priv);
-
-       mutex_unlock(&dev->struct_mutex);
-
-       return 0;
-}
-
 static inline int MAP_TO_MV(int map)
 {
        return 1250 - (map * 25);
@@ -3952,7 +3926,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
        {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS},
        {"i915_rstdby_delays", i915_rstdby_delays, 0},
        {"i915_frequency_info", i915_frequency_info, 0},
-       {"i915_delayfreq_table", i915_delayfreq_table, 0},
        {"i915_inttoext_table", i915_inttoext_table, 0},
        {"i915_drpc_info", i915_drpc_info, 0},
        {"i915_emon_status", i915_emon_status, 0},