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path: root/drivers/i2c/busses/i2c-i801.c
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2007-07-12i2c-i801: Use the internal 32-byte buffer on ICH4+Oleg Ryjkov
Add an ability to utilize the internal SRAM buffer on ICH4 and newer host controllers to speed up execution of block operations. I've split the code so that it is more clear which block transaction is performed. First of all the host controller's type is identified. isich4 is set when we think that the controller has the internal buffer. Then, before every block transaction, if isich4 is set, we attempt to enable the E32B bit in SMBAUXCTL register. Signed-off-by: Oleg Ryjkov <olegr@google.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-07-12i2c-i801: Various cleanupsOleg Ryjkov
* Use defines instead of raw numbers for register bits * Fix several wrong indentations and trailing whitespace * Move hwpec timeout checking to a separate function Signed-off-by: Oleg Ryjkov <olegr@google.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-05-01i2c: Shrink struct i2c_clientDavid Brownell
This shrinks the size of "struct i2c_client" by 40 bytes: - Substantially shrinks the string used to identify the chip type - The "flags" don't need to be so big - Removes some internal padding It also adds kerneldoc for that struct, explaining how "name" is really a chip type identifier; it's otherwise potentially confusing. Because the I2C_NAME_SIZE symbol was abused for both i2c_client.name and for i2c_adapter.name, this needed to affect i2c_adapter too. The adapters which used that symbol now use the more-obviously-correct idiom of taking the size of that field. JD: Shorten i2c_adapter.name from 50 to 48 bytes while we're here, to avoid wasting space in padding. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-03-22i2c-i801: Restore the device state before leavingJean Delvare
Restore the original host configuration on driver unload and on suspend. In particular this returns the SMBus master in I2C mode if it was originally in I2C mode, which should help with suspend/resume if the BIOS expects to find the SMBus master in I2C mode. This fixes bug #6449 (for real this time.) http://bugzilla.kernel.org/show_bug.cgi?id=6449 Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Tommi Kyntola <tommi.kyntola@ray.fi>
2007-02-17Replace remaining references to "driverfs" with "sysfs".Robert P. J. Day
Globally, s/driverfs/sysfs/g. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-13i2c: Add IDs to adaptersStephen Hemminger
IDs have been defined but not used by most of the I2C adapters. By having a unique ID, clients can check for correct connection during probe. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-02-13i2c-i801: Spelling fixJean Delvare
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2006-12-10i2c: Enable PEC on more i2c-i801 devicesJean Delvare
Enable PEC on recent Intel SMBus controllers (ICH6, ICH7, ICH8, ICH9 and ESB2.) Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Jason Gaston <jason.d.gaston@intel.com>
2006-12-01i2c-i801: SMBus patch for Intel ICH9Jason Gaston
This updated patch adds the Intel ICH9 LPC and SMBus Controller DID's. Thi= s patch relies on the irq ICH9 patch to pci_ids.h. Signed-off-by: Jason Gaston <jason.d.gaston@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26i2c: Constify i2c_algorithm declarations, part 2Jean Delvare
i2c: Constify i2c_algorithm declarations, part 2 Make struct i2c_algorithm declarations const in all i2c bus drivers where it is possible. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-30[PATCH] i2c-801: 64bit resource fixAndrew Morton
drivers/i2c/busses/i2c-i801.c: In function 'i801_probe': drivers/i2c/busses/i2c-i801.c:496: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t' Cc: Greg KH <greg@kroah.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27[PATCH] i2c-i801.c: don't pci_disable_device() after it was just enabledDaniel Ritz
Commit 02dd7ae2892e5ceff111d032769c78d3377df970 ("[PATCH] i2c-i801: Merge setup function") has a missing return 0 in the _probe() function. This means the error path is always executed and pci_disable_device() is called even when the device just got successfully enabled. Having the SMBus device disabled makes some systems (eg. Fujitsu-Siemens Lifebook E8010) hang hard during power-off. Intead of reverting the whole commit this patch fixes it up: - don't ever call pci_disable_device(), also not in the _remove() function to avoid hangs - fix missing pci_release_region() in error path Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-22[PATCH] i2c-i801: Merge setup functionJean Delvare
i2c-i801: Merge setup function Merge i801_setup into i801_probe, as it doesn't make much sense to have them split. This lets us handle errors better. Christopher Hellwig had been suggesting this back in March 2003 when the driver was merged. Also drop two useless debug messages (revision and base address can be obtained from lspci, procfs or sysfs.) Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[PATCH] i2c-i801: Better pci subsystem integrationJean Delvare
i2c-i801: Better pci subsystem integration Integrate the i2c-i801 driver better with the pci subsystem, by calling pci_{enable,disable}_device and requesting the I/O region by BAR rather than direct configuration space access. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[PATCH] i2c-i801: CleanupsJean Delvare
i2c-i801: Cleanups Various cleanups to the i2c-i801 driver: * Fix documentation file and self file name references. * i801_setup can be marked __devinit. * Drop useless error local variable and label in i801_setup. * Avoid a double PCI configuration register write in some cases. * Use symbolic names for SMBHSTCFG bits. * Transmit the error code returned by i801_setup instead of forcing it to an arbitrary value. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[PATCH] i2c-i801: Remove PCI function checkJean Delvare
i2c-i801: Remove PCI function check Remove the PCI function number check when probing devices. This check is redundant, each function has a separate PCI device ID, so checking for that ID is sufficient. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[PATCH] i2c-i801: Remove force_addr parameterJean Delvare
i2c-i801: Remove force_addr parameter Remove the force_addr module parameter. It doesn't appear to ever have been needed, and PCI resources shouldn't be arbitrarily changed anyway. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[PATCH] i2c-i801: Fix block transaction poll loopsJean Delvare
i2c-i801: Fix block transaction poll loops Two of the three poll loops have the poll and sleep swapped, causing an extra sleep to occur after the polled condition is fulfilled. In practice, this doubles the amount of sleep time for every block transaction. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-04-20[PATCH] i2c-i801: Fix resume when PEC is usedJean Delvare
Fix for bug #6395: Fail to resume on Tecra M2 with ADM1032 and Intel 82801DBM The BIOS of the Tecra M2 doesn't like it when it has to reboot or resume after the i2c-i801 driver has left the SMBus in PEC mode. The most simple fix is to clear the PEC bit after after every transaction. That's what this driver was doing up to 2.6.15 (inclusive). Thanks to Daniele Gaffuri for the very good report. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-06[PATCH] i2c-i801: I2C patch for Intel ICH8Jason Gaston
This patch adds the Intel ICH8 DID to the i2c-i801.c and Kconfig files for I2C support. Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-05[PATCH] i2c: i2c-i801 explicitly enables/disables PECMark M. Hoffman
This patch tweaks i2c-i801.c so that the driver always sets the SMBAUXCTL register (which enables/disables PEC) explicitly before each transaction. Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-10[PATCH] PCI: removed unneeded .owner field from struct pci_driverGreg Kroah-Hartman
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] i2c: i2c-i801 PEC code cleanupsJean Delvare
The tests leading to the use of hardware PEC in the i2c-i801 driver can be simplified. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] i2c: SMBus PEC support rewrite, 3 of 3Jean Delvare
The new SMBus PEC implementation doesn't support PEC emulation on non-PEC non-I2C SMBus masters, so we can drop all related code. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] i2c: SMBus PEC support rewrite, 1 of 3Jean Delvare
Discard I2C_FUNC_SMBUS_*_PEC defines. i2c clients are not supposed to check for PEC support of i2c bus drivers on individual SMBus transactions, and i2c bus drivers are not supposed to advertise them. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] Owner field additions to many i2c drivers, 1 of 5Laurent Riffard
This patch updates .owner field for various struct pci_driver variables. Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] i2c: Cleanup i2c-i801 ifdefsJean Delvare
No more need to check for PEC support being available now that both the i2c-core and the i2c-i801 drivers are part of the Linux kernel source tree. It's just there. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] i2c: Reuse name strings in i2c bus driversJean Delvare
Clean up name string usage in 12 i2c bus drivers: * Use the i2c_adapter name for requesting the I/O region rather than redefining a new string. * Do not initialize the i2c_adapter name to "unset". This should save a few data bytes here and there. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/i2c/busses/i2c-ali1535.c | 6 +++--- drivers/i2c/busses/i2c-ali1563.c | 6 ++++-- drivers/i2c/busses/i2c-ali15x3.c | 5 +++-- drivers/i2c/busses/i2c-amd756.c | 5 ++--- drivers/i2c/busses/i2c-amd8111.c | 4 +++- drivers/i2c/busses/i2c-i801.c | 4 ++-- drivers/i2c/busses/i2c-nforce2.c | 4 ++-- drivers/i2c/busses/i2c-piix4.c | 4 ++-- drivers/i2c/busses/i2c-sis5595.c | 5 +++-- drivers/i2c/busses/i2c-sis630.c | 6 ++++-- drivers/i2c/busses/i2c-sis96x.c | 5 +++-- drivers/i2c/busses/i2c-via.c | 4 ++-- 12 files changed, 33 insertions(+), 25 deletions(-)
2005-09-05[PATCH] I2C: Kill i2c_algorithm.id (4/7)Jean Delvare
There are no more users of i2c_algorithm.id, so we can finally drop this structure member. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-05[PATCH] I2C: Kill i2c_algorithm.name (1/7)Jean Delvare
The name member of the i2c_algorithm is never used, although all drivers conscientiously fill it. We can drop it completely, this structure doesn't need to have a name. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-07-29[PATCH] I2C: Missing space in split stringsJean Delvare
A few split string in i2c (and now hwmon) drivers lack a joining space, causing them to display incorrectly. This trivial patch fixes that up. Please apply, thanks. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-11[PATCH] I2C: Strip trailing whitespace from stringsJean Delvare
Here is a simple patch originally from Denis Vlasenko, which strips a useless trailing whitespace from 8 strings in 4 i2c drivers. Please apply, thanks. From: Denis Vlasenko <vda@ilport.com.ua> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-21[PATCH] I2C: drivers/i2c/*: #include <linux/config.h> cleanupAlexey Dobriyan
Files that don't use CONFIG_* stuff shouldn't include config.h Files that use CONFIG_* stuff should include config.h It's that simple. ;-) Signed-off-by: Alexey Dobriyan <adobriyan@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-16[PATCH] i2c-i801: I2C patch for Intel ESB2Jason Gaston
This patch adds the Intel ESB2 DID's to the i2c-i801.c and Kconfig files for I2C support. Signed-off-by:  Jason Gaston <Jason.d.gaston@intel.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
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!
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