[Intel-gfx] [PATCH] drm/i915/gen9_lp: Fix DMC DC counter debugfs output

[Imre Deak]

On GEN9 LP (BXT/GLK) DC6 is not supported, so don't print the counter
on those platforms. So far we did this on GLK too.

Testcase: igt/pm_dc/dc6-dpms
Cc: Jyoti Yadav <jyoti.r.yadav at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 041319d48ca3..e11714aa1ca9 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2916,15 +2916,15 @@ static int i915_dmc_info(struct seq_file *m, void *unused)
 	seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version),
 		   CSR_VERSION_MINOR(csr->version));
 
-	if (IS_BROXTON(dev_priv)) {
-		seq_printf(m, "DC3 -> DC5 count: %d\n",
-			   I915_READ(BXT_CSR_DC3_DC5_COUNT));
-	} else if (IS_GEN(dev_priv, 9, 11)) {
-		seq_printf(m, "DC3 -> DC5 count: %d\n",
-			   I915_READ(SKL_CSR_DC3_DC5_COUNT));
+	if (INTEL_GEN(dev_priv) > 11)
+		goto out;
+
+	seq_printf(m, "DC3 -> DC5 count: %d\n",
+		   I915_READ(IS_BROXTON(dev_priv) ? BXT_CSR_DC3_DC5_COUNT :
+						    SKL_CSR_DC3_DC5_COUNT));
+	if (!IS_GEN9_LP(dev_priv))
 		seq_printf(m, "DC5 -> DC6 count: %d\n",
 			   I915_READ(SKL_CSR_DC5_DC6_COUNT));
-	}
 
 out:
 	seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0)));
-- 
2.13.2