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Improve i2c driver slave delay, thanks to Fabrizio Sciarra that provide it * support for master/slave delay (provided patch) * remove some printk that spam logs * introduce new symbols ETRAX_I2C_DYN_ALLOC and ETRAX_I2C_SLAVE_DELAY * cleanup a bit the driver * dump release number

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SVN-Revision: 17954
This commit is contained in:
Claudio Mignanti 2009-10-06 09:20:30 +00:00
parent 3c5feca158
commit 4b724681e0
2 changed files with 317 additions and 211 deletions
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499
target/linux/etrax/files-2.6.30/arch/cris/arch-v10/drivers/i2c_gvc.c
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29
target/linux/etrax/patches-2.6.30/500-i2c_gvc.patch
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@ -1,6 +1,8 @@
--- a/arch/cris/arch-v10/drivers/Kconfig
+++ b/arch/cris/arch-v10/drivers/Kconfig
@@ -450,11 +450,18 @@ config ETRAX_I2C
Index: linux-2.6.30.8/arch/cris/arch-v10/drivers/Kconfig
===================================================================
--- linux-2.6.30.8.orig/arch/cris/arch-v10/drivers/Kconfig 2009-10-02 11:31:49.000000000 +0200
+++ linux-2.6.30.8/arch/cris/arch-v10/drivers/Kconfig 2009-10-06 10:36:23.000000000 +0200
@@ -450,11 +450,31 @@
i2c_arg = I2C_READARG(STA013_READ_ADDR, reg);
val = ioctl(fd, _IO(ETRAXI2C_IOCTYPE, I2C_READREG), i2c_arg);
@ -10,6 +12,19 @@
+ select ETRAX_I2C_USES_PB_NOT_PB_I2C
+ help
+ Enables an I2C driver with Geert Vancompernolle improvement.
+
+config ETRAX_I2C_SLAVE_DELAY
+ bool "I2C Slave delay support"
+ depends on ETRAX_I2C_GVC && EXPERIMENTAL
+ help
+ Enable this to enhanced master/slave dialog
+ Improvement by Positive Going (www.positivegoing.it) and BK srl (www.b-k.it)
+
+config ETRAX_I2C_DYN_ALLOC
+ bool "I2C major device dynamic alloc"
+ depends on ETRAX_I2C_GVC && EXPERIMENTAL
+ help
+ Enable this to dynamicaly alloc major i2c device number
+
# this is true for most products since PB-I2C seems to be somewhat
# flawed..
@ -20,7 +35,7 @@
help
Select whether to use the special I2C mode in the PB I/O register or
not. This option needs to be selected in order to use some drivers
@@ -478,7 +485,7 @@ config ETRAX_I2C_CLK_PORT
@@ -478,7 +498,7 @@
config ETRAX_I2C_EEPROM
bool "I2C EEPROM (non-volatile RAM) support"
@ -29,8 +44,10 @@
help
Enables I2C EEPROM (non-volatile RAM) on PB0 and PB1 using the I2C
driver. Select size option: Probed, 2k, 8k, 16k.
--- a/arch/cris/arch-v10/drivers/Makefile
+++ b/arch/cris/arch-v10/drivers/Makefile
Index: linux-2.6.30.8/arch/cris/arch-v10/drivers/Makefile
===================================================================
--- linux-2.6.30.8.orig/arch/cris/arch-v10/drivers/Makefile 2009-10-02 11:31:14.000000000 +0200
+++ linux-2.6.30.8/arch/cris/arch-v10/drivers/Makefile 2009-10-02 11:31:50.000000000 +0200
@@ -4,6 +4,7 @@
obj-$(CONFIG_ETRAX_AXISFLASHMAP) += axisflashmap.o