* [PATCH] ibus/gk20a: use udelay() in interrupt context
@ 2016-07-06 14:04 Alexandre Courbot
0 siblings, 0 replies; only message in thread
From: Alexandre Courbot @ 2016-07-06 14:04 UTC (permalink / raw)
To: Ben Skeggs; +Cc: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW, Thierry Reding
gk20a_ibus_init_ibus_ring() can be called from gk20a_ibus_intr(), in
non-interruptible context. Replace use of usleep_range() with udelay().
Reported-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---
drm/nouveau/nvkm/subdev/ibus/gk20a.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drm/nouveau/nvkm/subdev/ibus/gk20a.c b/drm/nouveau/nvkm/subdev/ibus/gk20a.c
index b7159b3..1a4ab82 100644
--- a/drm/nouveau/nvkm/subdev/ibus/gk20a.c
+++ b/drm/nouveau/nvkm/subdev/ibus/gk20a.c
@@ -29,7 +29,7 @@ gk20a_ibus_init_ibus_ring(struct nvkm_subdev *ibus)
nvkm_mask(device, 0x137250, 0x3f, 0);
nvkm_mask(device, 0x000200, 0x20, 0);
- usleep_range(20, 30);
+ udelay(20);
nvkm_mask(device, 0x000200, 0x20, 0x20);
nvkm_wr32(device, 0x12004c, 0x4);
--
2.9.0
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2016-07-06 14:04 [PATCH] ibus/gk20a: use udelay() in interrupt context Alexandre Courbot
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