Commit Graph

22 Commits

Author SHA1 Message Date
Jean Delvare
fb4504fe84 Move the pcf8591 driver to hwmon
Directory drivers/i2c/chips is going away, so drivers there must find
new homes. For the pcf8591 driver, the best choice seems to be the
hwmon subsystem. While the Philips PCF8591 device isn't a typical
hardware monitoring chip, its DAC interface is compatible with the
hwmon one, so it fits somewhat.

If a better subsystem is ever created for ADC/DAC chips, the driver
could be moved there.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>
2009-03-30 21:46:43 +02:00
Jean Delvare
bd8d421f7c i2c: Convert the max6875 driver to a new-style i2c driver
The new-style max6875 driver implements the optional detect() callback
to cover the use cases of the legacy driver. I'm curious if anyone
really needs this though, so it might be removed in the feature.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:07 +02:00
Jean Delvare
3d63430a26 i2c: Convert the pca9539 driver to a new-style i2c driver
The new-style pca9539 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Warning: users will now have to use the force module parameter to get
the driver to attach to their device. That's not a bad thing as these
devices can't be detected anyway.

Note that this doesn't change the fact that this driver is deprecated
in favor of gpio/pca953x.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:07 +02:00
Jean Delvare
97addff6de i2c: Convert the pcf8575 driver to a new-style i2c driver
The new-style pcf8575 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Warning: users will now have to use the force module parameter to get
the driver to attach to their device. That's not a bad thing as these
devices can't be detected anyway.

Note that this doesn't change the fact that this driver is deprecated
in favor of gpio/pcf857x.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:06 +02:00
Jean Delvare
833bedb813 i2c: Convert the pcf8574 driver to a new-style i2c driver
The new-style pcf8574 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Warning: users will now have to use the force module parameter to get
the driver to attach to their device. That's not a bad thing as these
devices can't be detected anyway.

Note that this doesn't change the fact that this driver is deprecated
in favor of gpio/pcf857x.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:06 +02:00
eric miao
b72540c30c deprecate obsolete pca9539 driver
Use drivers/gpio/pca9539.c instead.

Signed-off-by: eric miao <eric.miao@marvell.com>
Acked-by: Ben Gardner <bgardner@wabtec.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:13 -08:00
Bart Van Assche
5864ae03ca i2c: Add support for the PCF8575 chip
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27 18:14:45 +01:00
Jean Delvare
553515e5c5 i2c/pcf8574: No arbitrary initialization
Do not initialize the PCF8574 with an arbitrary value. Users will have
to write the initial value to sysfs themselves.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Aurelien Jarno <aurelien@aurel32.net>
2007-10-13 23:56:31 +02:00
Jean Delvare
4b2643d7d9 i2c: Fix the i2c_smbus_read_i2c_block_data() prototype
Let the drivers specify how many bytes they want to read with
i2c_smbus_read_i2c_block_data(). So far, the block count was
hard-coded to I2C_SMBUS_BLOCK_MAX (32), which did not make much sense.
Many driver authors complained about this before, and I believe it's
about time to fix it. Right now, authors have to do technically stupid
things, such as individual byte reads or full-fledged I2C messaging,
to work around the problem. We do not want to encourage that.

I even found that some bus drivers (e.g. i2c-amd8111) already
implemented I2C block read the "right" way, that is, they didn't
follow the old, broken standard. The fact that it was never noticed
before just shows how little i2c_smbus_read_i2c_block_data() was used,
which isn't that surprising given how broken its prototype was so far.

There are some obvious compatiblity considerations:
* This changes the i2c_smbus_read_i2c_block_data() prototype. Users
  outside the kernel tree will notice at compilation time, and will
  have to update their code.
* User-space has access to i2c_smbus_xfer() directly using i2c-dev, so
  the changed expectations would affect tools such as i2cdump. In order
  to preserve binary compatibility, we give I2C_SMBUS_I2C_BLOCK_DATA
  a new numeric value, and define I2C_SMBUS_I2C_BLOCK_BROKEN with the
  old numeric value. When i2c-dev receives a transaction with the
  old value, it can convert it to the new format on the fly.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12 14:12:29 +02:00
Jean Delvare
890e037509 i2c: Delete outdated x1205 driver documentation
The x1205 driver moved to the RTC subsystem and was significantly
modified since then, so just delete the outdated documentation.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
2007-07-12 14:12:28 +02:00
Alessandro Zummo
4d4e5ce864 [PATCH] i2c: New Xicor X1205 RTC driver
New driver for the Xicor X1205 RTC chip.

Signed-off-by: Alessandro Zummo <alessandro.zummo@towertech.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28 14:02:12 -07:00
bgardner@wabtec.com
0283fe6c3b [PATCH] I2C: max6875 documentation cleanup
Fix a spelling error and change a sysfs name.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05 09:14:05 -07:00
bgardner@wabtec.com
93ffa43514 [PATCH] I2C: update max6875 documentation
Updates to the max6875 driver documentation.
This brings the documentation in sync with the code, which was recently
simplified.

This patch is based off 2.6.13-rc2-mm2.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05 09:14:03 -07:00
Jean Delvare
ede7fbdf52 [PATCH] I2C: Move hwmon drivers (3/3)
Part 3: Move the drivers documentation, plus two general documentation
files.

Note that the patch "adds trailing whitespace", because it does move the
files as-is, and some files happen to have trailing whitespace.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-11 14:47:41 -07:00
Jean Delvare
089bd86632 [PATCH] I2C: max6875 documentation update
Here is a proposed documentation update for the new max6875 i2c chip
driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-11 14:10:36 -07:00
Jean Delvare
7c7a530463 [PATCH] I2C: w83781d: remove non-i2c sensor chips
This patch removes the support for the W83697HF and W83627THF chips from
the w83781d driver. These chips have no I2C/SMBus interface and are
better supported by the Super-I/O-based w83627hf driver. Documentation
was updated to reflect the support drop.

Signed-off-by: Grant Coady <gcoady@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 21:52:07 -07:00
bgardner@wabtec.com
69dd204b6b [PATCH] I2C: add new pca9539 driver
This is an i2c driver for the Philips PCA9539 (16 bit I/O port).
It uses the new i2c-sysfs interfaces.
The patch includes documentation.
It depends on the patch that renames "i2c-sysfs.h" to "hwmon-sysfs.h"

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 21:52:05 -07:00
BGardner@Wabtec.com
c3bc4caedd [PATCH] max6875: new i2c device driver
This patch adds support for the MAX6875/MAX6874 chips.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 21:52:05 -07:00
Grant Coady
a0ef14837a [PATCH] I2C: add adm9240 driver documentation
This patch adds adm9240 driver doc, with thanks to Rudolf Marek
for review.

Signed-off-by: Grant Coady <gcoady@gmail.com>
Acked-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 21:52:03 -07:00
R.Marek@sh.cvut.cz
7f15b66468 [PATCH] I2C: documentation update 2/3
This patch adds missing documentation for system health monitoring chips.
I would like to thank all people, who helped me with this project.

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 21:52:02 -07:00
R.Marek@sh.cvut.cz
2bf34a1ca9 [PATCH] I2C: documentation update 1/3
This patch just changes the extension of Documentation/i2c/chips/smsc47b397.txt
to none - to conform with naming in i2c subsystem directory.

Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21 21:52:02 -07:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00