u-boot.git/drivers/i2c, branch v2015.04-rc2

dm: Expand and complete Kconfig in drivers/

2015-02-12T17:35:33Z

Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass Reviewed-by: Masahiro Yamada

dm: i2c: Make API accessible even without CONFIG_DM

2015-02-12T17:35:33Z

Make the driver model I2C API available always, even if driver model is not enabled. This allows for a 'soft' switch-over, where drivers can use the new structures in code which is compiled but not yet used. This makes migration easier in some cases. Fix up the existing drivers which define their own 'struct i2c_msg'. Signed-off-by: Simon Glass Acked-by: Heiko Schocher

dm: i2c: Add a dm_ prefix to driver model bus speed functions

2015-02-12T17:35:33Z

As with i2c_read() and i2c_write(), add a dm_ prefix to the driver model versions of these functions to avoid conflicts. Signed-off-by: Simon Glass Acked-by: Heiko Schocher

i2c: s3c24x0: reduce transmission status timeout

2015-02-12T17:35:29Z

If no device is connected to I2C bus, the i2c probe command can take a lot of time for probe each address. This commit reduces the busy timeout to 10ms for standard and high speed modes. This doesn't break the transmission an also allow for properly probe the devices. Signed-off-by: Przemyslaw Marczak Changes v3: - new commit, after split the next one Tested-by: Simon Glass

dm: i2c: Add two more I2C init functions to the compatibility layer

2015-01-30T00:10:01Z

These functions are useful in case the board calls them. Also fix a missing parameter caused by applying the wrong patch (actually I failed to send v2 and applied v1 by mistake). Signed-off-by: Simon Glass

dm: i2c: dts: Support an offset-len device tree property

2015-01-30T00:10:01Z

Since U-Boot can support different offset lengths (0-4 bytes), add a device tree property to specify this. This avoids hard-coding it in the driver. Signed-off-by: Simon Glass

dm: i2c: s3c24x0: adjust to dm-i2c api

2015-01-30T00:10:00Z

This commit adjusts the s3c24x0 driver to new i2c api based on driver-model. The driver supports standard and high-speed i2c as previous. Tested on Trats2, Odroid U3, Arndale, Odroid XU3 Signed-off-by: Przemyslaw Marczak Tested-by: Simon Glass Cc: Simon Glass Cc: Heiko Schocher Cc: Minkyu Kang Acked-by: Simon Glass

dm: i2c-uclass-compat: fix missed argument

2015-01-30T00:09:59Z

This patch fixes build error for CONFIG_DM_I2C_COMPAT. In i2c_get_chip_for_busnum() call, one of argument was missed, which was offset_len. Now it is set to 'alen' as previous. Signed-off-by: Przemyslaw Marczak Acked-by: Simon Glass

dm: i2c: Move slave details to child platdata

2015-01-30T00:09:56Z

At present we go through various contortions to store the I2C's chip address in its private data. This only exists when the chip is active so must be set up when it is probed. Until the device is probed we don't actually record what address it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the address when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass Reviewed-by: Masahiro Yamada

dm: core: Add a flag to control sequence numbering

2015-01-30T00:09:55Z

At present we try to use the 'reg' property and device tree aliases to give devices a sequence number. The 'reg' property is often actually a memory address, so the sequence numbers thus-obtained are not useful. It would be better if the devices were just sequentially numbered in that case. In fact neither I2C nor SPI use this feature, so drop it. Some devices need us to look up an alias to number them within the uclass. Add a flag to control this, so it is not done unless it is needed. Adjust the tests to test this new behaviour. Signed-off-by: Simon Glass Reviewed-by: Masahiro Yamada