u-boot.git/drivers/core/device.c, branch v2015.01

dm: device: Add newline to debug() messages

2014-12-11T20:18:43+00:00

Some of these are missing a newline. Add it.

Signed-off-by: Simon Glass

dm: core: Add functions to find parent and OF data

2014-11-22T09:16:47+00:00

Add dev_get_parent() as a convenience to obtain the parent of a device.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini 
Acked-by: Heiko Schocher

dm: core: Allow access to the device's driver_id data

2014-11-22T09:16:45+00:00

When the device is created from a device tree node, it matches a compatible
string. Allow access to that string and the associated data.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini 
Acked-by: Heiko Schocher

dm: Allow device removal features to be dropped

2014-11-21T07:13:02+00:00

For SPL we don't expect to need to remove a device. Save some code space
by dropping this feature. The board config can define
CONFIG_DM_DEVICE_REMOVE if this is in fact needed.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

dm: core: Allow parents to pass data to children during probe

2014-10-22T16:36:46+00:00

Buses sometimes want to pass data to their children when they are probed.
For example, a SPI bus may want to tell the slave device about the chip
select it is connected to.

Add a new function to permit the parent data to be supplied to the child.

Signed-off-by: Simon Glass 
Acked-by: Jagannadha Sutradharudu Teki

dm: core: Add functions for iterating through device children

2014-10-22T16:36:45+00:00

Buses need to iterate through their children in some situations. Add a few
functions to make this easy.

Signed-off-by: Simon Glass 
Acked-by: Jagannadha Sutradharudu Teki

dm: avoid dev->req_seq overflow

2014-09-23T18:44:31+00:00

Since dev->req_seq value is initialized from "reg" property of fdt node,
there is posibility, that address value contained in fdt is greater than
INT_MAX, and then value in dev->req_seq is negative which led to probe()
fail.

This patch fix this problem by ensuring that req_seq is positive, unless
it's one of errno codes.

Signed-off-by: Robert Baldyga 
Acked-by: Simon Glass

dm: core: Allow device_bind() to used without CONFIG_OF_CONTROL

2014-09-23T18:44:30+00:00

The sequence number support in driver model requires device tree control.
It should be skipped if CONFIG_OF_CONTROL is not defined, and should not
require functions from fdtdec.

Signed-off-by: Simon Glass

dm: Add child_pre_probe() and child_post_remove() methods

2014-07-23T13:08:37+00:00

Some devices (particularly bus devices) must track their children, knowing
when a new child is added so that it can be set up for communication on the
bus.

Add a child_pre_probe() method to provide this feature, and a corresponding
child_post_remove() method.

Signed-off-by: Simon Glass

dm: Introduce per-child data for devices

2014-07-23T13:08:37+00:00

Some device types can have child devices and want to store information
about them. For example a USB flash stick attached to a USB host
controller would likely use this space. The controller can hold
information about the USB state of each of its children.

The data is stored attached to the child device in the 'parent_priv'
member. It can be auto-allocated by dm when the child is probed. To
do this, add a per_child_auto_alloc_size value to the parent driver.

Signed-off-by: Simon Glass