[Intel-gfx] [PATCH 4/6] drm/i915: Corrected the platform checks in i915_ring_freq_table function

[akash.goel at intel.com]

From: Akash Goel <akash.goel at intel.com>

Corrected the platform checks in i915_ring_freq_table debugfs function
so as to allow the read of ring frequency table for BDW and disallow for VLV

v2: Simplified the checks to avoid the double negation (Daniel)

Issue: VIZ-5144
Signed-off-by: Akash Goel <akash.goel at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index c49fe2a..438c10b 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1746,7 +1746,8 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 	int ret = 0;
 	int gpu_freq, ia_freq;
 
-	if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
+	if (!(IS_GEN6(dev) || (IS_GEN7(dev) && !IS_VALLEYVIEW(dev)) ||
+	      IS_BROADWELL(dev))) {
 		seq_puts(m, "unsupported on this chipset\n");
 		return 0;
 	}
-- 
1.9.2