u-boot.git/drivers/core/ofnode.c, branch v2017.11

dm: ofnode: query correct property in livetree ofnode_get_addr_size

2017-10-09T02:41:09+00:00

The livetree codepath of ofnode_get_addr_size always used the "reg"
property for of_get_property. Use the property parameter of the function
call instead and check the return value if the property exists.
Otherwise return FDT_ADDR_T_NONE.

This was discoverd while using SPI NOR with livetree.
spi_flash_decode_fdt checks for memory-map and will not fail with
livetree even if the property does not exist.

Signed-off-by: Klaus Goger 
Reviewed-by: Philipp Tomsich 
Reviewed-by: Simon Glass

dm: core: Add ofnode_for_each_subnode()

2017-09-12T03:43:58+00:00

Add a convenience macro to iterate over subnodes of a node. Make use of
this where appropriate in the code.

Signed-off-by: Simon Glass

ofnode: add {ofnode, dev}_read_resource_byname()

2017-08-29T14:56:17+00:00

Linux supports platform_get_resource_byname() to look up a resource
by name.

We want a similar helper.  It is useful when a device node has named
register regions.

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

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

2017-07-29T15:43:51+00:00

dm: core: add ofnode_count_phandle_with_args()

2017-07-28T21:34:08+00:00

This function is usefull to get phandle number contained
in a property list.
For example,  this allows to allocate the right amount
of memory to keep clock's reference contained into the
"clocks" property.

To implement it, either of_count_phandle_with_args() or
fdtdec_parse_phandle_with_args() are used respectively
for live tree and flat tree.
By passing index = -1, these 2 functions returns the
number of phandle contained into the property list.

Add also the dev_count_phandle_with_args() based on
ofnode_count_phandle_with_args()

Signed-off-by: Patrice Chotard 
Reviewed-by: Simon Glass

dm: core: Fix up ofnode_get_addr_index() for 64-bit values

2017-07-28T18:02:47+00:00

At present this function only supports 32-bit (single-cell) values. Update
it to support two-cell values also.

Signed-off-by: Simon Glass 
Tested-by: Marcel Ziswiler 
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren

dm: core: Add ofnode_read_resource()

2017-07-28T18:02:47+00:00

We sometimes need to read a resource from an arbitrary node. In any case
for consistency we should not put the live-tree switching code in
a dev_read_...() function. Update this to suit.

Signed-off-by: Simon Glass 
Tested-by: Marcel Ziswiler 
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren

dm: ofnode: use fdt32_t for DT property value to fix sparse warning

2017-07-11T16:08:20+00:00

DTB is encoded in big endian.  When we retrieve property values,
we need to use fdt32_to_cpu (aka be32_to_cpu) for endian conversion.
This is a bit error-prone, but sparse is useful to detect endian
mismatch.

We need to use (fdt32_t *) instead of (u32 *) for a pointer of a
property value.  Otherwise sparse warns "cast to restricted __be32".

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

dm: ofnode: simplify ofnode_read_bool()

2017-07-11T16:08:20+00:00

Reuse ofnode_get_property() to simplify the implementation.

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

dm: ofnode: rename ofnode_read_prop() to ofnode_get_property()

2017-07-11T16:08:20+00:00

This function returns the pointer to the value of a node property.
The current name ofnode_read_prop() is confusing.  Follow the naming
of_get_property() from Linux.

The return type (const u32 *) is wrong.  DT property values can be
strings as well as integers.  This is why of_get_property/fdt_getprop
returns an opaque pointer.

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