|
|
@@ -356,3 +356,119 @@ index 0000000..d774b77
|
|
|
+ const u8 word, u16 *data);
|
|
|
+extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom,
|
|
|
+ const u8 word, __le16 *data, const u16 words);
|
|
|
+From: Ivo van Doorn <[email protected]>
|
|
|
+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 <[email protected]>
|
|
|
+Signed-off-by: John W. Linville <[email protected]>
|
|
|
+---
|
|
|
+
|
|
|
+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);
|
|
|
+ }
|
|
|
+
|
|
|
+From: John W. Linville <[email protected]>
|
|
|
+Date: Tue, 12 Jun 2007 01:37:46 +0000 (-0400)
|
|
|
+Subject: [PATCH] eeprom_93cx6: shorten pulse timing to match spec
|
|
|
+X-Git-Tag: v2.6.23-rc1~1201^2~71
|
|
|
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=7e9400f178d291b2208c4ed9aac0f425c1364000
|
|
|
+
|
|
|
+[PATCH] eeprom_93cx6: shorten pulse timing to match spec
|
|
|
+
|
|
|
+93cx6 datasheet available here:
|
|
|
+
|
|
|
+ http://ww1.microchip.com/downloads/en/DeviceDoc/21749F.pdf
|
|
|
+
|
|
|
+Figure 1-1 and Table 1-2 on pages 4-5 indicate that both Clock High
|
|
|
+Time and Clock Low Time have largest minimum times of 450ns.
|
|
|
+
|
|
|
+Signed-off-by: John W. Linville <[email protected]>
|
|
|
+---
|
|
|
+
|
|
|
+diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
|
|
|
+index 0d6d742..ac515b0 100644
|
|
|
+--- a/drivers/misc/eeprom_93cx6.c
|
|
|
++++ b/drivers/misc/eeprom_93cx6.c
|
|
|
+@@ -42,10 +42,10 @@ static inline void eeprom_93cx6_pulse_high(struct eeprom_93cx6 *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.
|
|
|
++ * According to the specifications the "maximum minimum"
|
|
|
++ * time should be 450ns.
|
|
|
+ */
|
|
|
+- udelay(1);
|
|
|
++ ndelay(450);
|
|
|
+ }
|
|
|
+
|
|
|
+ static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom)
|
|
|
+From: Francois Romieu <[email protected]>
|
|
|
+Date: Tue, 3 Jul 2007 22:31:44 +0000 (+0200)
|
|
|
+Subject: eeprom_93cx6: shorten pulse timing to match spec (bis)
|
|
|
+X-Git-Tag: v2.6.23-rc1~1151^2~11
|
|
|
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=8abd531e3f77188de2fc41e677d075cc66e61631
|
|
|
+
|
|
|
+eeprom_93cx6: shorten pulse timing to match spec (bis)
|
|
|
+
|
|
|
+Based on an original idea by John W. Linville.
|
|
|
+
|
|
|
+It is the missing part of 42d45ccd60636c28e35c2016f091783bc14ad99c
|
|
|
+
|
|
|
+Signed-off-by: Francois Romieu <[email protected]>
|
|
|
+Signed-off-by: Jeff Garzik <[email protected]>
|
|
|
+---
|
|
|
+
|
|
|
+diff --git a/drivers/misc/eeprom_93cx6.c b/drivers/misc/eeprom_93cx6.c
|
|
|
+index ac515b0..ea55654 100644
|
|
|
+--- a/drivers/misc/eeprom_93cx6.c
|
|
|
++++ b/drivers/misc/eeprom_93cx6.c
|
|
|
+@@ -55,10 +55,10 @@ static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *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.
|
|
|
++ * According to the specifications the "maximum minimum"
|
|
|
++ * time should be 450ns.
|
|
|
+ */
|
|
|
+- udelay(1);
|
|
|
++ ndelay(450);
|
|
|
+ }
|
|
|
+
|
|
|
+ static void eeprom_93cx6_startup(struct eeprom_93cx6 *eeprom)
|
Florian Fainelli