Commit graph

13 commits

Author SHA1 Message Date
Simon Glass
0a06d71061 dm: doc: Move to new driver model schema
Now that Linux has accepted these tags, update the dtoc tool to use them.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-02-14 09:43:27 -07:00
Simon Glass
8f5afe21ae dtoc: Add a way to read a phandle with params
Add a function to read a phandle and associated name and offset. This is
useful for binman.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-01-18 14:55:41 -07:00
Simon Glass
6101253818 dtoc: Make GetArgs() more flexible
At present it is not possible to have arguments which include spaces.
Update the function to only split the args if the property is a single
string. This is a bit inconsistent, but might still be useful.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Suggested-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2022-03-18 19:24:24 -06:00
Simon Glass
7e4b66aa87 dtoc: Support reading a list of arguments
It is helpful to support a string or stringlist containing a list of
space-separated arguments, for example:

   args = "-n fred", "-a", "123";

This resolves to the list:

   -n fred -a 123

which can be passed to a program as arguments.

Add a helper to do the required processing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-02-22 10:05:44 -07:00
Simon Glass
d866e62917 dtoc: Add support for reading 64-bit ints
Add functions to read a 64-bit integer property from the devicetree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-12-02 09:15:43 -07:00
Simon Glass
eec44c7218 dtoc: Support widening a bool value
At present if we see 'ranges' property (with no value) we assume it is a
boolean, as per the devicetree spec.

But another node may define 'ranges' with a value, forcing us to widen it
to an int array. At present this is not supported and causes an error.

Fix this and add some test cases.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Tom Rini <trini@konsulko.com>
2021-08-01 09:05:24 -06:00
Simon Glass
1c56469ce1 dtoc: Check that a parent is not missing
With of-platdata-inst we want to set up a reference to each devices'
parent device, if there is one. If we find that the device has a parent
(i.e. is not a root node) but it is not in the list of devices being
written, then we cannot create the reference.

Report an error in this case, since it indicates that the parent node
is either missing a compatible string, is disabled, or perhaps does not
have any properties because it was not tagged for SPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-07-15 19:50:27 +08:00
Simon Glass
da39341223 dtoc: Improve handling of reg properties
This existing code assumes that a reg property is larger than one cell,
but this is not always the case. Fix this assumption.

Also if a node's parent is missing the #address-cells and #size-cells
properties we use 2 as a default for each. But this should not happen in
practice. More likely the properties were removed for SPL due to there
being no 'u-boot,dm-pre-reloc' property, or similar. Add a warning for
this as the failure can be very confusing.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-04-06 16:33:19 +12:00
Simon Glass
76677dd2b2 dtoc: Add a subnode test for multiple nodes
Add a new test that adds a subnode alongside an existing one, as well as
adding properties to a subnode. This will expand to adding multiple
subnodes in future patches. Put a node after the one we are adding to so
we can check that things sync correctly.

The testAddNode() test should be in the TestNode class since it is a node
test, so move it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-27 16:26:48 +13:00
Simon Glass
059535291c dtoc: Read aliases for uclasses
Scan the aliases in the device tree to establish the number of devices
within each uclass, and the sequence number of each.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-22 19:23:27 +13:00
Simon Glass
8d6f2d359e dtoc: Process driver aliases along with drivers
Instead of using a separate step for this processing, handle it while
scanning its associated driver. This allows us to drop the code coverage
exception in this case.

Note that only files containing drivers are scanned by dtoc, so aliases
declared in a file that doesn't hold a driver will not be noticed. It
would be confusing to put them anywhere other than in the driver that they
relate to, but update the documentation to say this explicitly, just in
case.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-22 19:23:27 +13:00
Simon Glass
f38161c576 dtoc: Rename sandbox_i2c_test and sandbox_pmic_test
These have '_test' suffixes which are not present on the drivers in the
source code. Drop the suffixes to avoid a mismatch when scanning.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-22 19:23:27 +13:00
Simon Glass
dff51a524c dtoc: Move test files into a test/ directory
It is confusing to have the test files in the same places as the
implementation. Move them into a separate directory.

Add a helper function for test_dtoc, to avoid repeating the same
path.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-22 19:23:27 +13:00