u-boot.git/drivers/core/device.c, branch v2017.07

dm: core: Allow binding a device from a live tree

2017-06-01T13:03:08+00:00

When a live tree is being used we need to record the node that was used to
create the device. Update device_bind_with_driver_data() to support this.

Signed-off-by: Simon Glass

dm: core: Rename of_device_is_compatible()

2017-06-01T13:03:06+00:00

The of_ prefix conflicts with the livetree version of this function.
Rename it to avoid problems when we add livetree support.

Signed-off-by: Simon Glass

dm: core: Adjust device_bind_common() to take an ofnode

2017-06-01T13:03:04+00:00

This core function will need to work with a live tree also. Update it to
accept an ofnode instead of an offset.

Signed-off-by: Simon Glass

dm: core: Add ofnode to represent device tree nodes

2017-06-01T13:03:04+00:00

With live tree we need a struct device_node * to reference a node. With
the existing flat tree, we need an int offset. We need to unify these into
a single value which can represent both.

Add an ofnode union for this and adjust existing code to move to this.

Signed-off-by: Simon Glass

dm: core: Move dev_get_addr() etc. into a separate file

2017-06-01T12:57:52+00:00

Move this group of address-related functions into a new file. These use
the flat device tree. Future work will provide new versions of these which
can support the live tree.

Signed-off-by: Simon Glass

dm: core: Ensure DMA regions start up with the cache clean

2017-04-13T20:44:49+00:00

There is a strange interaction with drivers which use DMA if the cache
starts off in a dirty state. Buffer space which the driver reads (but has
not previously written) can contain zero bytes from alloc_priv(). This can
cause corruption of the memory used by DMA for incoming data.

Fix this and add a comment to explain the problem.

This allows the dwc2 driver to work correctly with driver model, for
example.

Signed-off-by: Simon Glass

dm: core: Add flags parameter to device_remove()

2017-04-05T02:15:10+00:00

This patch adds the flags parameter to device_remove() and changes all
calls to this function to provide the default value of DM_REMOVE_NORMAL
for "normal" device removal.

This is in preparation for the driver specific pre-OS (e.g. DMA
cancelling) remove support.

Signed-off-by: Stefan Roese 
Cc: Simon Glass 
Acked-by: Simon Glass

dm: core: Replace of_offset with accessor

2017-02-08T13:12:14+00:00

At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass

dm: core: Add dev_get_addr_size_index() to retrieve addr and size

2016-12-03T04:03:31+00:00

The currently available functions accessing the 'reg' property of a
device only retrieve the address. Sometimes its also necessary to
retrieve the size described by the 'reg' property. This patch adds
the new function dev_get_addr_size_index() which retrieves both,
the address and the size described by the 'reg' property.

Signed-off-by: Stefan Roese 
Cc: Simon Glass 
Acked-by: Simon Glass

Fix codying style broken by recent libfdt sync

2016-10-24T12:04:42+00:00

Commit b02e4044ff8e ("libfdt: Bring in upstream stringlist
functions") broke codying style in some places especially
by inserting an extra whitespace before fdt_stringlist_count().

Signed-off-by: Masahiro Yamada 
Acked-by: Simon Glass