aboutsummaryrefslogtreecommitdiff
path: root/drivers/i2c/busses/i2c-au1550.c
AgeCommit message (Collapse)Author
2008-05-12[MIPS] Alchemy: SMBus resource fixSergei Shtylyov
The Alchemy platform code registers the SMBus device using the virtual address of its registers instead of the physical one -- fix this, taking into account that actually the whole megabyte is decoded by any of the programmable serial controllers (one of which is SMBus), and that all the Alchemy peripherals are directly mappable into KSEG1 kernel space and therefore ioremap() call would just boil down to CKSEG1ADDR() invocation. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-22i2c: Fix platform driver hotplug/coldplugKay Sievers
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is prefixed with "platform:". Add MODULE_ALIAS() to the hotpluggable I2C platform drivers, to allow module auto loading. [ db: add some more drivers ] Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-au1550: Convert to platform driverManuel Lauss
Convert the i2c-au1550 bus driver to platform driver, and register a platform device for the Alchemy Db/Pb series of boards. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-01-27i2c-au1550: properly terminate zero-byte transfersManuel Lauss
Zero-bytes transfers would leave the bus transaction unfinished (no i2c stop is sent), with the following transfer actually sending the slave address to the previously addressed device, resulting in weird device failures (e.g. reset minute register values in my RTC). This patch instructs the controller to send an I2C STOP right after the slave address in case of a zero-byte transfer. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2007-10-13i2c-au1550: Fix a misused register problemChris David
Fix a "mis-used register" problem on the AMD MIPS Alchemy au1550 I2C interface. In summary, the programmable serial controller seems to hang the kernel when I send a single 'address' byte on the I2C bus. The patch essentially uses the PSC_SMBSTAT register's TE (transmit FIFO empty) bit to check when the transmit FIFO is empty, instead of using the PSC_SMBEVNT register's TU (transmit underflow) bit. Using the TE bit fixed the hang problem. Signed-off-by: Chris David <cd@chrisdavid.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org>
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>
2006-09-26i2c-au1550: Add I2C support for Au1200Domen Puncer
i2c-au1550: Add I2C support for Au1200 Signed-off-by: Domen Puncer <domen.puncer@ultra.si> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26i2c-au1550: Add SMBus functionality flagDomen Puncer
i2c-au1550: Add SMBus functionality flag Add SMBus functionality flag, so we can use eeprom and similar drivers. Signed-off-by: Domen Puncer <domen.puncer@ultra.si> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26i2c-au1550: Fix timeout problemDomen Puncer
i2c-au1550: Fix timeout problem Fix from Jordan Crouse: If the transmit and recieve FIFOS are not empty, forceably flush them rather then waiting for them to drain on their own. This solves at least a problem reported by Clem Taylor: http://www.linux-mips.org/archives/linux-mips/2006-05/msg00240.html (1% of I2C transactions would timeout) Signed-off-by: Domen Puncer <domen.puncer@ultra.si> 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.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>
2005-06-21[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>
2005-04-16Linux-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!