On 05/22/2013 12:48 PM, Marc Dietrich wrote:
ARM has a maximum of 2000 usec delay. Use mdelay for larger delays.
This affects distro kernels mostly.

Cc: David Airlie <[email protected]>
Cc: Ben Skeggs <[email protected]>
Signed-off-by: Marc Dietrich <[email protected]>
---
  drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c |    3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c 
b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
index d0817d9..ed7415e 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
@@ -51,7 +51,8 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 
loadval)
        const u32 doff = (or * 0x800);
        int load = -EINVAL;
        nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
-       udelay(9500);
+       mdelay(9);
+       udelay(500);

That looks very ugly. Can you just use 9 or 10 instead of adding on the extra 500uS?

David Daney

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to