[BXT DMC PATCHES 3/3] drm/i915/bxt: Stepping info added for bxt.

Animesh Manna
2015-08-04T16:32:20Z

Added stepping info in intel_csr.c which is required to extract
specific firmware from packaged dmc firmware.

Stepping info is aligned with current bspec info.

Cc: Vetter, Daniel <daniel.vetter@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
---
drivers/gpu/drm/i915/intel_csr.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index c89b9ce..06b46b1 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -167,11 +167,19 @@ static const struct stepping_info skl_stepping_info[] = {
{'G', '0'}, {'H', '0'}, {'I', '0'}
};

+static struct stepping_info bxt_stepping_info[] = {
+ {'A', '0'}, {'A', '1'}, {'A', '2'},
+ {'B', '0'}, {'B', '1'}, {'B', '2'}
+};
+
static char intel_get_stepping(struct drm_device *dev)
{
if (IS_SKYLAKE(dev) && (dev->pdev->revision <
ARRAY_SIZE(skl_stepping_info)))
return skl_stepping_info[dev->pdev->revision].stepping;
+ else if (IS_BROXTON(dev) && (dev->pdev->revision <
+ ARRAY_SIZE(bxt_stepping_info)))
+ return bxt_stepping_info[dev->pdev->revision].stepping;
else
return -ENODATA;
}
@@ -181,6 +189,9 @@ static char intel_get_substepping(struct drm_device *dev)
if (IS_SKYLAKE(dev) && (dev->pdev->revision <
ARRAY_SIZE(skl_stepping_info)))
return skl_stepping_info[dev->pdev->revision].substepping;
+ else if (IS_BROXTON(dev) && (dev->pdev->revision <
+ ARRAY_SIZE(bxt_stepping_info)))
+ return bxt_stepping_info[dev->pdev->revision].substepping;
else
return -ENODATA;
}