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Devicetree updates for v5.4:

Browse source 
- A bunch of DT binding conversions to DT schema format
 
 - Clean-ups of the Arm idle-states binding
 
 - Support a default number of cells in of_for_each_phandle() when the
   cells name is missing
 
 - Expose dtbs_check and dt_binding_check in the make help
 
 - Convert writting-schema.md to ReST
 
 - HiSilicon reset controller binding updates
 
 - Add documentation for MT8516 RNG
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Merge tag 'devicetree-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree updates from Rob Herring:

 - a bunch of DT binding conversions to DT schema format

 - clean-ups of the Arm idle-states binding

 - support a default number of cells in of_for_each_phandle() when the
   cells name is missing

 - expose dtbs_check and dt_binding_check in the make help

 - convert writting-schema.md to ReST

 - HiSilicon reset controller binding updates

 - add documentation for MT8516 RNG

* tag 'devicetree-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (46 commits)
  of: restore old handling of cells_name=NULL in of_*_phandle_with_args()
  bus: qcom: fix spelling mistake "ambigous" -> "ambiguous"
  of: Let of_for_each_phandle fallback to non-negative cell_count
  iommu: pass cell_count = -1 to of_for_each_phandle with cells_name
  dt-bindings: arm: Convert Realtek board/soc bindings to json-schema
  dt-bindings: arm: Convert Actions Semi bindings to jsonschema
  dt-bindings: Correct spelling in example schema
  dt-bindings: cpu: Add a support cpu type for cortex-a55
  dt-bindings: gpu: mali-midgard: Add samsung exynos5250 compatible
  dt-bindings: arm: idle-states: Move exit-latency-us explanation
  dt-bindings: arm: idle-states: Add punctuation to improve readability
  dt-bindings: arm: idle-states: Correct "constraint guarantees"
  dt-bindings: arm: idle-states: Correct references to wake-up delay
  dt-bindings: arm: idle-states: Use "e.g." and "i.e." consistently
  pinctrl-mcp23s08: Fix property-name in dt-example
  dt-bindings: Clarify interrupts-extended usage
  dt-bindings: Convert Arm Mali Utgard GPU to DT schema
  dt-bindings: Convert Arm Mali Bifrost GPU to DT schema
  dt-bindings: Convert Arm Mali Midgard GPU to DT schema
  dt-bindings: irq: Convert Allwinner NMI Controller to a schema
  ...
This commit is contained in:
Linus Torvalds 2019-09-19 13:48:37 -07:00
commit e3a008ac12
60 changed files with 1522 additions and 892 deletions
Download patch file Download diff file Expand all files Collapse all files

58
drivers/of/base.c
View file

@ -1286,6 +1286,13 @@ int of_phandle_iterator_init(struct of_phandle_iterator *it,
memset(it, 0, sizeof(*it));
/*
* one of cell_count or cells_name must be provided to determine the
* argument length.
*/
if (cell_count < 0 && !cells_name)
return -EINVAL;
list = of_get_property(np, list_name, &size);
if (!list)
return -ENOENT;
@ -1335,11 +1342,20 @@ int of_phandle_iterator_next(struct of_phandle_iterator *it)
if (of_property_read_u32(it->node, it->cells_name,
&count)) {
pr_err("%pOF: could not get %s for %pOF\n",
it->parent,
it->cells_name,
it->node);
goto err;
/*
* If both cell_count and cells_name is given,
* fall back to cell_count in absence
* of the cells_name property
*/
if (it->cell_count >= 0) {
count = it->cell_count;
} else {
pr_err("%pOF: could not get %s for %pOF\n",
it->parent,
it->cells_name,
it->node);
goto err;
}
}
} else {
count = it->cell_count;
@ -1503,10 +1519,17 @@ int of_parse_phandle_with_args(const struct device_node *np, const char *list_na
const char *cells_name, int index,
struct of_phandle_args *out_args)
{
int cell_count = -1;
if (index < 0)
return -EINVAL;
return __of_parse_phandle_with_args(np, list_name, cells_name, 0,
index, out_args);
/* If cells_name is NULL we assume a cell count of 0 */
if (!cells_name)
cell_count = 0;
return __of_parse_phandle_with_args(np, list_name, cells_name,
cell_count, index, out_args);
}
EXPORT_SYMBOL(of_parse_phandle_with_args);
@ -1588,7 +1611,7 @@ int of_parse_phandle_with_args_map(const struct device_node *np,
if (!pass_name)
goto free;
ret = __of_parse_phandle_with_args(np, list_name, cells_name, 0, index,
ret = __of_parse_phandle_with_args(np, list_name, cells_name, -1, index,
out_args);
if (ret)
goto free;
@ -1756,7 +1779,24 @@ int of_count_phandle_with_args(const struct device_node *np, const char *list_na
struct of_phandle_iterator it;
int rc, cur_index = 0;
rc = of_phandle_iterator_init(&it, np, list_name, cells_name, 0);
/*
* If cells_name is NULL we assume a cell count of 0. This makes
* counting the phandles trivial as each 32bit word in the list is a
* phandle and no arguments are to consider. So we don't iterate through
* the list but just use the length to determine the phandle count.
*/
if (!cells_name) {
const __be32 *list;
int size;
list = of_get_property(np, list_name, &size);
if (!list)
return -ENOENT;
return size / sizeof(*list);
}
rc = of_phandle_iterator_init(&it, np, list_name, cells_name, -1);
if (rc)
return rc;

4
drivers/of/unittest.c
View file

@ -1044,8 +1044,10 @@ static void __init of_unittest_platform_populate(void)
test_bus = platform_device_register_full(&test_bus_info);
rc = PTR_ERR_OR_ZERO(test_bus);
unittest(!rc, "testbus registration failed; rc=%i\n", rc);
if (rc)
if (rc) {
of_node_put(np);
return;
}
test_bus->dev.of_node = np;
/*