target/linux/generic-2.6/patches-2.6.22/003-eeprom_93cx6.patch

   1 From: Francois Romieu <romieu@fr.zoreil.com>
   2 Date: Tue, 3 Jul 2007 22:31:44 +0000 (+0200)
   3 Subject: eeprom_93cx6: shorten pulse timing to match spec (bis)
   4 X-Git-Tag: v2.6.23-rc1~1151^2~11
   5 X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=8abd531e3f77188de2fc41e677d075cc66e61631
   6
   7 eeprom_93cx6: shorten pulse timing to match spec (bis)
   8
   9 Based on an original idea by John W. Linville.
  10
  11 It is the missing part of 42d45ccd60636c28e35c2016f091783bc14ad99c
  12
  13 Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
  14 Signed-off-by: Jeff Garzik <jeff@garzik.org>
  15 ---
  16
  17 diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
  18 index ac515b0..ea55654 100644
  19 --- a/drivers/misc/eeprom_93cx6.c
  20 +++ b/drivers/misc/eeprom_93cx6.c
  21 @@ -55,10 +55,10 @@ static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom)
  22
  23         /*
  24          * Add a short delay for the pulse to work.
  25 -        * According to the specifications the minimal time
  26 -        * should be 450ns so a 1us delay is sufficient.
  27 +        * According to the specifications the "maximum minimum"
  28 +        * time should be 450ns.
  29          */
  30 -       udelay(1);
  31 +       ndelay(450);
  32  }
  33
  34  static void eeprom_93cx6_startup(struct eeprom_93cx6 *eeprom)