diff options
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.22/001-eeprom_93cx6.patch')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.22/001-eeprom_93cx6.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.22/001-eeprom_93cx6.patch b/target/linux/generic-2.6/patches-2.6.22/001-eeprom_93cx6.patch new file mode 100644 index 0000000000..9bc19fb49b --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.22/001-eeprom_93cx6.patch @@ -0,0 +1,46 @@ +From: Ivo van Doorn <ivdoorn@gmail.com> +Date: Mon, 14 May 2007 21:06:01 +0000 (+0200) +Subject: [PATCH] eeprom_93cx6: Add comment for 1us delay after pulse +X-Git-Tag: v2.6.23-rc1~1201^2~73 +X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=4b914dc0493edff19ff698a18198a173a14ba9d2 + +[PATCH] eeprom_93cx6: Add comment for 1us delay after pulse + +This will add a comment for the 1us delay which is taken +after the pulse has been switched. The 1us delay is based +on the specifications so that should be made clear. + +Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> +Signed-off-by: John W. Linville <linville@tuxdriver.com> +--- + +diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c +index bfcb434..0d6d742 100644 +--- a/drivers/misc/eeprom_93cx6.c ++++ b/drivers/misc/eeprom_93cx6.c +@@ -39,6 +39,12 @@ static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *eeprom) + { + eeprom->reg_data_clock = 1; + eeprom->register_write(eeprom); ++ ++ /* ++ * Add a short delay for the pulse to work. ++ * According to the specifications the minimal time ++ * should be 450ns so a 1us delay is sufficient. ++ */ + udelay(1); + } + +@@ -46,6 +52,12 @@ static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom) + { + eeprom->reg_data_clock = 0; + eeprom->register_write(eeprom); ++ ++ /* ++ * Add a short delay for the pulse to work. ++ * According to the specifications the minimal time ++ * should be 450ns so a 1us delay is sufficient. ++ */ + udelay(1); + } + |