[Intel-gfx] [PATCH] [intel-gfx] drm/i915/intel_csr.c Added ICL Stepping info.

[Jyoti Yadav]

As DMC Package contain DMC FW for multiple steppings including default
stepping. This patch will help to load FW for that particular stepping,
if FW for that stepping is available, instead of loading default FW.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav at intel.com>
---
 drivers/gpu/drm/i915/intel_csr.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 1ec4f09..f6352ab 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -183,6 +183,11 @@ struct stepping_info {
 	{'A', '0'}, {'A', '1'}, {'A', '2'},
 	{'B', '0'}, {'B', '1'}, {'B', '2'}
 };
+static const struct stepping_info icl_stepping_info[] = {
+	{'A', '0'}, {'A', '1'}, {'A', '2'},
+	{'B', '0'}, {'B', '2'},
+	{'C', '0'}
+};
 
 static const struct stepping_info no_stepping_info = { '*', '*' };
 
@@ -198,6 +203,9 @@ struct stepping_info {
 	} else if (IS_BROXTON(dev_priv)) {
 		size = ARRAY_SIZE(bxt_stepping_info);
 		si = bxt_stepping_info;
+	} else if (IS_ICELAKE(dev_priv)) {
+		size = ARRAY_SIZE(icl_stepping_info);
+		si = icl_stepping_info;
 	} else {
 		size = 0;
 		si = NULL;
-- 
1.9.1