intel-gpu-overlay: Update debugfs path for min/max frequency

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/overlay/gpu-freq.c b/overlay/gpu-freq.c
index f6bc67a..6b3f867 100644 (file)
--- a/overlay/gpu-freq.c
+++ b/overlay/gpu-freq.c
@@ -72,8 +72,12 @@ int gpu_freq_init(struct gpu_freq *gf)
 
        gf->fd = perf_open();
 
-       sprintf(buf, "%s/i915_cur_delayinfo", debugfs_dri_path);
+       sprintf(buf, "%s/i915_frequency_info", debugfs_dri_path);
        fd = open(buf, 0);
+       if (fd < 0) {
+               sprintf(buf, "%s/i915_cur_delayinfo", debugfs_dri_path);
+               fd = open(buf, 0);
+       }
        if (fd < 0)
                return gf->error = errno;