u-boot.git/drivers/i2c, branch v2015.01-rc3

i2c: Correct spelling error

2014-12-08T06:27:22Z

"diconnect" and "disconnet" should both be "disconnect". Signed-off-by: Mark Tomlinson

i2c: Fix deselection of muxes

2014-12-08T06:27:06Z

Due to an uninitialised variable, when muxes were deselected, any value could be written to the mux control register. On the PCA9548, this could result in multiple channels being selected, thus enabling multiple pull-up resistors, and much bus capacitance. The fix is simply to initialise the written value to zero. Signed-off-by: Mark Tomlinson

linux/kernel.h: sync min, max, min3, max3 macros with Linux

2014-11-23T11:48:30Z

U-Boot has never cared about the type when we get max/min of two values, but Linux Kernel does. This commit gets min, max, min3, max3 macros synced with the kernel introducing type checks. Many of references of those macros must be fixed to suppress warnings. We have two options: - Use min, max, min3, max3 only when the arguments have the same type (or add casts to the arguments) - Use min_t/max_t instead with the appropriate type for the first argument Signed-off-by: Masahiro Yamada Acked-by: Pavel Machek Acked-by: Lukasz Majewski Tested-by: Lukasz Majewski [trini: Fixup arch/blackfin/lib/string.c] Signed-off-by: Tom Rini

blackfin: convert to use CONFIG_SYS_I2C framework

2014-11-17T07:10:37Z

Signed-off-by: Scott Jiang

adi_i2c: convert to use general io accessors.

2014-11-17T07:10:15Z

Signed-off-by: Scott Jiang

blackfin: rename bfin-twi_i2c driver to adi_i2c

2014-11-17T07:10:04Z

Signed-off-by: Scott Jiang

i2c: rcar_i2c: Fix order of restart and clear status

2014-11-10T05:47:37Z

In case of repeated START condition, the restart has to be kicked before clear status (MSR register). If it is kicked after clear status, R-Car I2C may transfer data (TXD register) or receive data (RXD register) instead of transferring slave address (MAR register). Signed-off-by: Ryo Kataoka Signed-off-by: Nobuhiro Iwamatsu

drivers/i2c/fsl_i2c: Change CONFIG_I2C_TIMEOUT to 100ms

2014-11-10T05:47:36Z

Some slow I2C devices like Power Monitor(ZM7304) at times do not work well with low timeout value, so I2C bus get stuck during read cycle with this device, changing it to 100ms from 10ms works fine A lot of other i2c drivers like mxc and i2c drivers of BOOTROM also use relax timeouts to give sufficient ticks to work well with slower devices Signed-off-by: Shaveta Leekha Signed-off-by: Poonam Aggrwal

ppc4xx: Handle i2c stuck on combined xfer

2014-11-10T05:44:30Z

ppc4xx i2c master gets stuck on errors while repeated start is active. Can be easily reproduced by "i2c md" on an unpopulated i2c address. There is not stop condition given, scl remains pulled low. The only way out seems to be doing a stop manually and then a soft reset. Signed-off-by: Dirk Eibach Reviewed-by: Stefan Roese

ppc4xx: Fix i2c repeated start

2014-11-10T05:44:15Z

Debugging some i2c trouble I saw on my scope that repeated start is not working properply. The 4xx even held clock pulled down after transfers. Having a look in the driver I realized that IIC_CNTL_RPST is set on that part of the transfer that should begin with a repeated start. But repeated start is about not sending a stop condition, so IIC_CNTL_RPST has to be set on the last transfer before the repeated start happens. Signed-off-by: Dirk Eibach Reviewed-by: Stefan Roese