<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [BYT LPSS backlight] Acer Aspire Switch 10 backlight control"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90075#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [BYT LPSS backlight] Acer Aspire Switch 10 backlight control"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90075">bug 90075</a>
from <span class="vcard"><a class="email" href="mailto:darlor@seznam.cz" title="darlor@seznam.cz">darlor@seznam.cz</a>
</span></b>
<pre>Hi again,
After applying all four patches, I did some debugging via additional kernel
messages. I went backwards from message "Failed to own the pwm chip: pwm_lpss"
to function *pwm_get(struct device *dev, const char *con_id) in
drivers/pwm/core.c.
After macro function "list_for_each_entry(p, &pwm_lookup_list, list) {.....}"
variable "best" is still set to zero and pwm_get jumps to label "out:" because
pointer "chosen" is still NULL.
list_for_each_entry did not iterate at all - printk message (placed after
"match = 0;") did not occurred in dmesg.
Ill try to investigate further why &pwm_lookup_list is empty.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
<li>You are the QA Contact for the bug.</li>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>