From 03872064f77f4beb61d1afc22adf62da47cf087b Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Wed, 9 Jul 2014 14:31:57 -0300 Subject: [PATCH] drm/i915: get/put runtime PM at i915_semaphore_status Otherwise we will print some WARNs when we read registers and the machine is suspended. Testcase: igt/pm_rpm/debugfs-read Cc: Ben Widawsky Signed-off-by: Paulo Zanoni Reviewed-by: Ben Widawsky Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_debugfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 394519182510..952f19949be1 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2314,6 +2314,7 @@ static int i915_semaphore_status(struct seq_file *m, void *unused) ret = mutex_lock_interruptible(&dev->struct_mutex); if (ret) return ret; + intel_runtime_pm_get(dev_priv); if (IS_BROADWELL(dev)) { struct page *page; @@ -2363,6 +2364,7 @@ static int i915_semaphore_status(struct seq_file *m, void *unused) } seq_putc(m, '\n'); + intel_runtime_pm_put(dev_priv); mutex_unlock(&dev->struct_mutex); return 0; } -- 2.20.1