drm/i915: remove i915_rstdby_delays debugfs entry

CHV hard hangs on reading on 0x11100

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

1 files changed, 0 insertions, 24 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 21e1f9289846..394519182510 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -994,29 +994,6 @@ DEFINE_SIMPLE_ATTRIBUTE(i915_next_seqno_fops,
                         i915_next_seqno_get, i915_next_seqno_set,
                         "0x%llx\n");
 
-static int i915_rstdby_delays(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;
-        u16 crstanddelay;
-        int ret;
-
-        ret = mutex_lock_interruptible(&dev->struct_mutex);
-        if (ret)
-                return ret;
-        intel_runtime_pm_get(dev_priv);
-
-        crstanddelay = I915_READ16(CRSTANDVID);
-
-        intel_runtime_pm_put(dev_priv);
-        mutex_unlock(&dev->struct_mutex);
-
-        seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
-
-        return 0;
-}
-
 static int i915_frequency_info(struct seq_file *m, void *unused)
 {
         struct drm_info_node *node = m->private;
@@ -3875,7 +3852,6 @@ static const struct drm_info_list i915_debugfs_list[] = {
         {"i915_gem_hws_blt", i915_hws_info, 0, (void *)BCS},
         {"i915_gem_hws_bsd", i915_hws_info, 0, (void *)VCS},
         {"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_drpc_info", i915_drpc_info, 0},
         {"i915_emon_status", i915_emon_status, 0},