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2013-02-21i2c: Remove unneeded xxx_set_drvdata(..., NULL) callsDoug Anderson
There is simply no reason to be manually setting the private driver data to NULL in the remove/fail to probe cases. This is just extra cruft code that can be removed. A few notes: * Nothing relies on drvdata being set to NULL. * The __device_release_driver() function eventually calls dev_set_drvdata(dev, NULL) anyway, so there's no need to do it twice. * I verified that there were no cases where xxx_get_drvdata() was being called in these drivers and checking for / relying on the NULL return value. This could be cleaned up kernel-wide but for now just take the baby step and remove from the i2c subsystem. Reported-by: Wolfram Sang <wsa@the-dreams.de> Reported-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Jean Delvare <khali@linux-fr.org> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
2011-06-29i2c-taos-evm: Fix log messagesJean Delvare
* Print all error and information messages even when debugging is disabled. * Don't use adapter device to log messages before it is ready. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org
2009-09-18i2c-taos-evm: Switch echo off to improve performanceJean Delvare
When echo is on, we waste time reading back our orders. Switching echo off makes performance much better: SMBus byte data transactions are 47% faster and byte transactions are 24% faster. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-14i2c: Consistently reject unsupported transactionsJean Delvare
Many PC SMBus host controller drivers don't properly handle the case where they are requested to achieve a transaction they do not support. Update them so that the consistently print a warning message and return a single error value in this case. Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-04-29i2c: Convert most new-style drivers to use module aliasingJean Delvare
Based on earlier work by Jon Smirl and Jochen Friedrich. Update most new-style i2c drivers to use standard module aliasing instead of the old driver_name/type driver matching scheme. I've left the video drivers apart (except for SoC camera drivers) as they're a bit more diffcult to deal with, they'll have their own patch later. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jon Smirl <jonsmirl@gmail.com> Cc: Jochen Friedrich <jochen@scram.de>
2007-07-12i2c: New bus driver for the TAOS evaluation modulesJean Delvare
This is a new I2C bus driver for the TAOS evaluation modules. Developped and tested on the TAOS TSL2550 EVM. Signed-off-by: Jean Delvare <khali@linux-fr.org>