[PATCH] drm/i915/skl: Fix DMC load on Skylake J0 and K0

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commit a41c8882592fb80458959b10e37632ce030b68ca upstream.

The driver does not load firmware for unknown steppings, so these new
steppings must be added to the list.

[ Backported to 4.4-stable, already applied to 4.5-stable ]

Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/1454023163-25469-1-git-send-email-mathew.j.martineau@xxxxxxxxxxxxxxx
(cherry picked from commit a41c8882592fb80458959b10e37632ce030b68ca)
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 4.4.x
Signed-off-by: Mat Martineau <mathew.j.martineau@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_csr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 9e530a7..fc28c51 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -180,7 +180,8 @@ struct stepping_info {
 static const struct stepping_info skl_stepping_info[] = {
 		{'A', '0'}, {'B', '0'}, {'C', '0'},
 		{'D', '0'}, {'E', '0'}, {'F', '0'},
-		{'G', '0'}, {'H', '0'}, {'I', '0'}
+		{'G', '0'}, {'H', '0'}, {'I', '0'},
+		{'J', '0'}, {'K', '0'}
 };
 
 static struct stepping_info bxt_stepping_info[] = {
-- 
2.8.2

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