[Intel-gfx] [PATCH 2/5] drm/i915: add display power well report out to debugfs

[Jesse Barnes]

For tracking current state.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5fd6a5d..9f81e80 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1727,6 +1727,18 @@ static int i915_pc8_status(struct seq_file *m, void *unused)
 	return 0;
 }
 
+static int i915_display_power_status(struct seq_file *m, void *unused)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_device *dev = node->minor->dev;
+	bool enabled;
+
+	enabled = intel_display_power_enabled(dev, POWER_DOMAIN_VGA);
+	seq_printf(m, "Display power on: %s\n", yesno(enabled));
+
+	return 0;
+}
+
 static int
 i915_wedged_get(void *data, u64 *val)
 {
@@ -2234,6 +2246,7 @@ static struct drm_info_list i915_debugfs_list[] = {
 	{"i915_edp_psr_status", i915_edp_psr_status, 0},
 	{"i915_energy_uJ", i915_energy_uJ, 0},
 	{"i915_pc8_status", i915_pc8_status, 0},
+	{"i915_display_power_status", i915_display_power_status, 0},
 };
 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list)
 
-- 
1.8.3.1