Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=53698d2537bc8c2b8fedc788b8b927da9a004f9b
Commit: 53698d2537bc8c2b8fedc788b8b927da9a004f9b
Parent: b1dfe1f1457a85b42544ef8b9c83c7cf9d9c3a16
Author: Guennadi Liakhovetski <[EMAIL PROTECTED]>
AuthorDate: Thu Mar 22 13:06:55 2007 +0100
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Sat Mar 24 23:24:39 2007 +0000
[ARM] 4278/1: configure pxa27x I2C SCL as "input"
It has been reported by Julian Deng that configuring the pxa27x i2c SCL
line as output generates a short negative pulse on it during the call to
pxa_gpio_mode(GPIO117_I2CSCL_MD); as it first switches it to output and then
configures it for the alternate function. The SCL line is in fact bidirectional
and can also be configured as 117 | GPIO_ALT_FN_1_IN, in which case the pulse
is not generated. This is exactly what this patch does.
Author: Julian Deng <[EMAIL PROTECTED]>
Signed-off-by: G. Liakhovetski <[EMAIL PROTECTED]>
Signed-off-by: Russell King <[EMAIL PROTECTED]>
---
include/asm-arm/arch-pxa/pxa-regs.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h
b/include/asm-arm/arch-pxa/pxa-regs.h
index aec835b..139c9d9 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -1476,7 +1476,7 @@
#define GPIO112_MMCCMD_MD (112 | GPIO_ALT_FN_1_OUT)
#define GPIO113_I2S_SYSCLK_MD (113 | GPIO_ALT_FN_1_OUT)
#define GPIO113_AC97_RESET_N_MD (113 | GPIO_ALT_FN_2_OUT)
-#define GPIO117_I2CSCL_MD (117 | GPIO_ALT_FN_1_OUT)
+#define GPIO117_I2CSCL_MD (117 | GPIO_ALT_FN_1_IN)
#define GPIO118_I2CSDA_MD (118 | GPIO_ALT_FN_1_IN)
/*
-
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