Also add eeprom 93cx6 to generic-2.6

[openwrt/svn-archive/archive.git] / target / linux / generic-2.6 / patches / 001-eeprom_93cx6.patch

diff --git a/target/linux/generic-2.6/patches/001-eeprom_93cx6.patch b/target/linux/generic-2.6/patches/001-eeprom_93cx6.patch
new file mode 100644 (file)
index 0000000..9bc19fb
--- /dev/null
+++ b/target/linux/generic-2.6/patches/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);
+ }
+