From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
If the pcode fails to give us the goods on any of the QGV points just
declare that we have none so that we'll properly ignore the bw limits.
Cc: Clinton A Taylor <clinton.a.taylor@xxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_bw.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index b228671d5a5d..eb9281e1831c 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -129,8 +129,10 @@ static int icl_get_qgv_points(struct drm_i915_private *dev_priv,
struct intel_qgv_point *sp = &qi->points[i];
ret = icl_pcode_read_qgv_point_info(dev_priv, sp, i);
- if (ret)
+ if (ret) {
+ qi->num_points = 0;
return ret;
+ }
DRM_DEBUG_KMS("QGV %d: DCLK=%d tRP=%d tRDPRE=%d tRAS=%d tRCD=%d tRC=%d\n",
i, sp->dclk, sp->t_rp, sp->t_rdpre, sp->t_ras,
--
2.24.1
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