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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [nouveau, git regression] - I2C PWM fan control broken on nv50 adt7475 on kernels 3.3.x+"
href="https://bugs.freedesktop.org/show_bug.cgi?id=60704#c13">Comment # 13</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [nouveau, git regression] - I2C PWM fan control broken on nv50 adt7475 on kernels 3.3.x+"
href="https://bugs.freedesktop.org/show_bug.cgi?id=60704">bug 60704</a>
from <span class="vcard"><a class="email" href="mailto:m.meledandri@gmail.com" title="Marc Meledandri <m.meledandri@gmail.com>"> <span class="fn">Marc Meledandri</span></a>
</span></b>
<pre>FWIW, on kernel series 3.10.x, adjusting the i2c datarate still provides a
working solution on my nv50 hardware. Sensors detect properly and fan control
is enabled. The necessary patch has changed again:
--- a/drivers/gpu/drm/nouveau/core/subdev/i2cbase.c 2013-07-25
18:16:45.000000000 -0400
+++ b/drivers/gpu/drm/nouveau/core/subdev/i2cbase.c.patched 2013-07-29
19:26:09.393689862 -0400
@@ -122,7 +122,7 @@
if (!bit)
return -ENOMEM;
- bit->udelay = 10;
+ bit->udelay = 20;
bit->timeout = usecs_to_jiffies(2200);
bit->data = port;
bit->pre_xfer = nouveau_i2c_pre_xfer;</pre>
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