diff options
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.22/601-eeprom_93cx6_fixes.patch')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.22/601-eeprom_93cx6_fixes.patch | 107 |
1 files changed, 12 insertions, 95 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.22/601-eeprom_93cx6_fixes.patch b/target/linux/generic-2.6/patches-2.6.22/601-eeprom_93cx6_fixes.patch index 6957348..2f494c8 100644 --- a/target/linux/generic-2.6/patches-2.6.22/601-eeprom_93cx6_fixes.patch +++ b/target/linux/generic-2.6/patches-2.6.22/601-eeprom_93cx6_fixes.patch @@ -1,115 +1,32 @@ -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) +Index: linux-2.6.22.18/drivers/misc/eeprom_93cx6.c +=================================================================== +--- linux-2.6.22.18.orig/drivers/misc/eeprom_93cx6.c ++++ linux-2.6.22.18/drivers/misc/eeprom_93cx6.c +@@ -39,14 +39,26 @@ static inline void eeprom_93cx6_pulse_hi { eeprom->reg_data_clock = 1; eeprom->register_write(eeprom); +- udelay(1); + + /* + * 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); } -@@ -46,6 +52,12 @@ static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom) + static inline void eeprom_93cx6_pulse_low(struct eeprom_93cx6 *eeprom) { eeprom->reg_data_clock = 0; eeprom->register_write(eeprom); +- udelay(1); + + /* + * 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 <linville@tuxdriver.com> -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 <linville@tuxdriver.com> ---- - -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 <romieu@fr.zoreil.com> -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 <romieu@fr.zoreil.com> -Signed-off-by: Jeff Garzik <jeff@garzik.org> ---- - -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); } |