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

[Jyoti Yadav <jyoti.r.yadav@intel.com>]

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.

v2 : Fix formatting issue.

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/intel_csr.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 1ec4f09..5c467f2 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -184,6 +184,12 @@ struct stepping_info {
 	{'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 = { '*', '*' };
 
 static const struct stepping_info *
@@ -192,7 +198,10 @@ struct stepping_info {
 	const struct stepping_info *si;
 	unsigned int size;
 
-	if (IS_SKYLAKE(dev_priv)) {
+	if (IS_ICELAKE(dev_priv)) {
+		size = ARRAY_SIZE(icl_stepping_info);
+		si = icl_stepping_info;
+	} else if (IS_SKYLAKE(dev_priv)) {
 		size = ARRAY_SIZE(skl_stepping_info);
 		si = skl_stepping_info;
 	} else if (IS_BROXTON(dev_priv)) {
-- 
1.9.1

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