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27 March 2024, 02:37:15 UTC
Revision 8006bf56e360a4db71d304df778870a371a9e930 authored by Albert Lee on 03 July 2007, 20:28:36 UTC, committed by Bartlomiej Zolnierkiewicz on 03 July 2007, 20:28:36 UTC 
ide: pdc202xx_new PLL input clock fix
 
Recently the PLL input clock of Promise 2027x is sometimes detected
higher than expected (e.g. 20.027 MHz compared to 16.714 MHz).
It seems sometimes the mdelay() function is not as precise as it
used to be. Per Alan's advice, HT or power management might affect
the precision of mdelay().

This patch calls gettimeofday() to measure the time elapsed and
calculate the PLL input clock accordingly.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bahadir Balban <bahadir.balban@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
1 parent 52374f8
History
Tip revision: 8006bf56e360a4db71d304df778870a371a9e930 authored by Albert Lee on 03 July 2007, 20:28:36 UTC
ide: pdc202xx_new PLL input clock fix
Tip revision: 8006bf5
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CREDITS -rw-r--r-- 89.3 KB
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REPORTING-BUGS -rw-r--r-- 3.0 KB

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