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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-22 09:52:17 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-22 09:52:17 +0200 |
commit | 0809edbae347a224ca1b59fb8be1c2d54389c2c6 (patch) | |
tree | 944f780592c677989d3e5cc317d6dcfb9602ab4b /drivers/of | |
parent | 636b5284d8fa12cadbaa09bb7efa48473aa804f5 (diff) | |
parent | 18a86e5907f7160fb548d0d717e0f842b310708a (diff) | |
download | linux-0809edbae347a224ca1b59fb8be1c2d54389c2c6.tar.gz |
Merge tag 'devicetree-fixes-for-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes and cleanups from Rob Herring:
- Fix a regression when probing a child device reusing the parent
device's DT node pointer
- Refactor of_parse_phandle*() variants to static inlines
- Drop Enric Balletbo i Serra as a maintainer
- Fix DT schemas with arrays incorrectly encoded as a matrix
- Drop unneeded pinctrl properties from schemas
- Add SPI peripheral schema to SPI based displays
- Clean-up several schema examples
- Clean-up trivial-devices.yaml comments
- Add missing, in use vendor prefixes: Wingtech, Thundercomm, Huawei,
F(x)tec, 8devices
* tag 'devicetree-fixes-for-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: google,cros-ec: drop Enric Balletbo i Serra from maintainers
dt-bindings: display: bridge: drop Enric Balletbo i Serra from maintainers
of: Check 'of_node_reused' flag on of_match_device()
of: property: define of_property_read_u{8,16,32,64}_array() unconditionally
of: base: make small of_parse_phandle() variants static inline
dt-bindings: mfd: cirrus,madera: Fix 'interrupts' in example
dt-bindings: Fix array schemas encoded as matrices
dt-bindings: Drop unnecessary pinctrl properties
dt-bindings: rtc: st,stm32-rtc: Make each example a separate entry
dt-bindings: mmc: arm,pl18x: Make each example a separate entry
dt-bindings: display: Add SPI peripheral schema to SPI based displays
scripts/dtc: dtx_diff: remove broken example from help text
dt-bindings: trivial-devices: fix double spaces in comments
dt-bindings: trivial-devices: fix swapped comments
dt-bindings: vendor-prefixes: add Wingtech
dt-bindings: vendor-prefixes: add Thundercomm
dt-bindings: vendor-prefixes: add Huawei
dt-bindings: vendor-prefixes: add F(x)tec
dt-bindings: vendor-prefixes: add 8devices
dt-bindings: power: reset: gpio-restart: Correct default priority
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/base.c | 131 | ||||
-rw-r--r-- | drivers/of/device.c | 2 |
2 files changed, 10 insertions, 123 deletions
diff --git a/drivers/of/base.c b/drivers/of/base.c index 8a24d37153b4..e7d92b67cb8a 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1420,15 +1420,18 @@ int of_phandle_iterator_args(struct of_phandle_iterator *it, return count; } -static int __of_parse_phandle_with_args(const struct device_node *np, - const char *list_name, - const char *cells_name, - int cell_count, int index, - struct of_phandle_args *out_args) +int __of_parse_phandle_with_args(const struct device_node *np, + const char *list_name, + const char *cells_name, + int cell_count, int index, + struct of_phandle_args *out_args) { struct of_phandle_iterator it; int rc, cur_index = 0; + if (index < 0) + return -EINVAL; + /* Loop over the phandles until all the requested entry is found */ of_for_each_phandle(&it, rc, np, list_name, cells_name, cell_count) { /* @@ -1471,82 +1474,7 @@ static int __of_parse_phandle_with_args(const struct device_node *np, of_node_put(it.node); return rc; } - -/** - * of_parse_phandle - Resolve a phandle property to a device_node pointer - * @np: Pointer to device node holding phandle property - * @phandle_name: Name of property holding a phandle value - * @index: For properties holding a table of phandles, this is the index into - * the table - * - * Return: The device_node pointer with refcount incremented. Use - * of_node_put() on it when done. - */ -struct device_node *of_parse_phandle(const struct device_node *np, - const char *phandle_name, int index) -{ - struct of_phandle_args args; - - if (index < 0) - return NULL; - - if (__of_parse_phandle_with_args(np, phandle_name, NULL, 0, - index, &args)) - return NULL; - - return args.np; -} -EXPORT_SYMBOL(of_parse_phandle); - -/** - * of_parse_phandle_with_args() - Find a node pointed by phandle in a list - * @np: pointer to a device tree node containing a list - * @list_name: property name that contains a list - * @cells_name: property name that specifies phandles' arguments count - * @index: index of a phandle to parse out - * @out_args: optional pointer to output arguments structure (will be filled) - * - * This function is useful to parse lists of phandles and their arguments. - * Returns 0 on success and fills out_args, on error returns appropriate - * errno value. - * - * Caller is responsible to call of_node_put() on the returned out_args->np - * pointer. - * - * Example:: - * - * phandle1: node1 { - * #list-cells = <2>; - * }; - * - * phandle2: node2 { - * #list-cells = <1>; - * }; - * - * node3 { - * list = <&phandle1 1 2 &phandle2 3>; - * }; - * - * To get a device_node of the ``node2`` node you may call this: - * of_parse_phandle_with_args(node3, "list", "#list-cells", 1, &args); - */ -int of_parse_phandle_with_args(const struct device_node *np, const char *list_name, - const char *cells_name, int index, - struct of_phandle_args *out_args) -{ - int cell_count = -1; - - if (index < 0) - return -EINVAL; - - /* 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); +EXPORT_SYMBOL(__of_parse_phandle_with_args); /** * of_parse_phandle_with_args_map() - Find a node pointed by phandle in a list and remap it @@ -1733,47 +1661,6 @@ free: EXPORT_SYMBOL(of_parse_phandle_with_args_map); /** - * of_parse_phandle_with_fixed_args() - Find a node pointed by phandle in a list - * @np: pointer to a device tree node containing a list - * @list_name: property name that contains a list - * @cell_count: number of argument cells following the phandle - * @index: index of a phandle to parse out - * @out_args: optional pointer to output arguments structure (will be filled) - * - * This function is useful to parse lists of phandles and their arguments. - * Returns 0 on success and fills out_args, on error returns appropriate - * errno value. - * - * Caller is responsible to call of_node_put() on the returned out_args->np - * pointer. - * - * Example:: - * - * phandle1: node1 { - * }; - * - * phandle2: node2 { - * }; - * - * node3 { - * list = <&phandle1 0 2 &phandle2 2 3>; - * }; - * - * To get a device_node of the ``node2`` node you may call this: - * of_parse_phandle_with_fixed_args(node3, "list", 2, 1, &args); - */ -int of_parse_phandle_with_fixed_args(const struct device_node *np, - const char *list_name, int cell_count, - int index, struct of_phandle_args *out_args) -{ - if (index < 0) - return -EINVAL; - return __of_parse_phandle_with_args(np, list_name, NULL, cell_count, - index, out_args); -} -EXPORT_SYMBOL(of_parse_phandle_with_fixed_args); - -/** * of_count_phandle_with_args() - Find the number of phandles references in a property * @np: pointer to a device tree node containing a list * @list_name: property name that contains a list diff --git a/drivers/of/device.c b/drivers/of/device.c index b0800c260f64..874f031442dc 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -28,7 +28,7 @@ const struct of_device_id *of_match_device(const struct of_device_id *matches, const struct device *dev) { - if ((!matches) || (!dev->of_node)) + if (!matches || !dev->of_node || dev->of_node_reused) return NULL; return of_match_node(matches, dev->of_node); } |