u-boot.git/drivers/i2c, branch v2017.03-rc1

i2c: uniphier-f: use readl_poll_timeout() to poll registers

2017-01-29T11:59:08Z

The readl_poll_timeout() is a useful helper to poll registers and error out if the condition is not met. Signed-off-by: Masahiro Yamada

i2c: uniphier(-f): remove unneeded #include

2017-01-29T11:59:08Z

This include is unnecessary for low-level drivers. Signed-off-by: Masahiro Yamada

Merge branch 'master' of git://git.denx.de/u-boot-i2c

2017-01-18T12:21:33Z

Merge git://git.denx.de/u-boot-samsung

2017-01-18T12:21:12Z

i2c: i2c-cdns: No need for dedicated probe function

2017-01-18T05:39:01Z

The generic probe code in dm works, so get rid of the leftover cruft. Signed-off-by: Moritz Fischer Cc: Heiko Schocher Cc: Michal Simek Cc: u-boot@lists.denx.de

i2c: i2c-cdns: Implement workaround for hold quirk of the rev 1.0

2017-01-18T05:38:20Z

Revision 1.0 of this IP has a quirk where if during a long read transfer the transfer_size register will go to 0, the master will send a NACK to the slave prematurely. The way to work around this is to reprogram the transfer_size register mid-transfer when the only the receive fifo is known full, i.e. the I2C bus is known non-active. The workaround is based on the implementation in the linux-kernel. Signed-off-by: Moritz Fischer Cc: Heiko Schocher Cc: Michal Simek Cc: u-boot@lists.denx.de

i2c: i2c-cdns: Reorder timeout loop for interrupt waiting

2017-01-18T05:38:14Z

Reorder the timeout loop such that we first check if the condition is already true, and then call udelay() so if the condition is already true, break early. Reviewed-by: Michal Simek Signed-off-by: Moritz Fischer Cc: Heiko Schocher Cc: Michal Simek Cc: u-boot@lists.denx.de

i2c: i2c-cdns: Detect unsupported sequences for rev 1.0

2017-01-18T05:38:06Z

Revision 1.0 of this IP has a couple of issues, such as not supporting repeated start conditions for read transfers. So scan through the list of i2c messages for these conditions and report an error if they are attempted. This has been fixed for revision 1.4 of the IP, so only report the error when the IP can really not do it. Signed-off-by: Moritz Fischer Cc: Heiko Schocher Cc: Michal Simek Cc: u-boot@lists.denx.de

i2c: mux: Allow muxes to work as children of i2c bus without i2c-parent

2017-01-18T05:37:57Z

For mux check if the parent is already a device of UCLASS_I2C and if yes just use that. Otherwise see if someone specified an i2c-parent phandle. This mimics the behavior found in the Kernel, as it removes the requirement to explicitly specify a i2c-parent phandle. Signed-off-by: Moritz Fischer Cc: Heiko Schocher Cc: Bin Meng Cc: Simon Glass Cc: Michal Simek Cc: u-boot@lists.denx.de

i2c: Kconfig: Add SYS_I2C_S3C24X0 entry

2017-01-18T04:25:56Z

Adding Kconfig for SYS_I2C_S3C24X0. Signed-off-by: Jaehoon Chung Signed-off-by: Minkyu Kang