Commit 69b62498 authored Jul 06, 2016 by Alexandre Courbot Committed by Ben Skeggs Oct 12, 2016

drm/nouveau/ibus/gk20a: use udelay() in interrupt context



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>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

parent 69405d3d

drivers/gpu/drm/nouveau/nvkm/subdev/ibus/gk20a.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

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