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authorLinus Torvalds <torvalds@linux-foundation.org>2026-04-17 14:09:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-04-17 14:09:02 -0700
commite2d10998e4293a27c0389870b5fdf736a71d61ef (patch)
tree9b2128006576e95d5a6542adf59f4242cd4bb797 /drivers/of/fdt.c
parent430cc9f42b44d174230f646767e1403699645ec5 (diff)
parenta74c2e55ab66519ffa2069ac9ae83cd937bff4c4 (diff)
Merge tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring: "DT core: - Cleanup of the reserved memory code to keep CMA specifics in CMA code - Add and convert several users to new of_machine_get_match() helper - Validate nul termination in string properties - Update dtc to upstream v1.7.2-69-g53373d135579 - Limit matching reserved memory devices to /reserved-memory nodes - Fix some UAF in unittests - Remove Baikal SoC bus driver - Fix false DT_SPLIT_BINDING_PATCH checkpatch warning - Allow fw_devlink device-tree on x86 - Fix kerneldoc return description for of_property_count_elems_of_size() DT bindings: - Add fsl,imx25-aips, fsl,imx25-tcq, qcom,eliza-pdc, qcom,eliza-spmi-pmic-arb, qcom,hawi-imem, qcom,milos-imem, qcom,hawi-pdc, and lg,sw49410 bindings - Convert arm,vexpress-scc to DT schema - Deprecate Qualcomm generic CPU compatibles. Add Apple M3 CPU cores. - Move some dual-link display panels to the dual-link schema - Drop mux controller node name constraints - Remove Baikal SoC bus bindings - Fix a false warning in the thermal trip node binding" * tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (39 commits) dt-bindings: display: panel: panel-simple: Add lg,sw49410 compatible dt-bindings: display: ti, am65x-dss: Fix AM62L DSS reg and clock constraints dt-bindings: display: simple: Move Innolux G156HCE-L01 panel to dual-link dt-bindings: display: simple: Move AUO 21.5" FHD to dual-link dt-bindings: thermal: Fix false warning with 'phandle' in trips nodes of: unittest: fix use-after-free in testdrv_probe() of: unittest: fix use-after-free in of_unittest_changeset() dt-bindings: qcom,pdc: document the Hawi Power Domain Controller dt-bindings: ARM: arm,vexpress-scc: convert to DT schema drivers/of: fdt: validate flat DT string properties before string use drivers/of: fdt: validate stdout-path properties before parsing them dt-bindings: sram: Document qcom,hawi-imem compatible dt-bindings: sram: Allow multiple-word prefixes to sram subnode dt-bindings: sram: Document qcom,milos-imem scripts/dtc: Update to upstream version v1.7.2-69-g53373d135579 of: property: Allow fw_devlink device-tree on x86 dt-bindings: arm: cpus: Add Apple M3 CPU core compatibles dt-bindings: display: lt8912b: Drop redundant endpoint properties dt-bindings: opp-v2: Fix example 3 CPU reg value dt-bindings: connector: add pd-disable dependency ...
Diffstat (limited to 'drivers/of/fdt.c')
-rw-r--r--drivers/of/fdt.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 104e697bee7b..82f7327c59ea 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -68,7 +68,7 @@ void __init of_fdt_limit_memory(int limit)
bool of_fdt_device_is_available(const void *blob, unsigned long node)
{
- const char *status = fdt_getprop(blob, node, "status", NULL);
+ const char *status = fdt_stringlist_get(blob, node, "status", 0, NULL);
if (!status)
return true;
@@ -677,22 +677,15 @@ void __init of_flat_dt_read_addr_size(const __be32 *prop, int entry_index,
* specific compatible values.
*/
static int of_fdt_is_compatible(const void *blob,
- unsigned long node, const char *compat)
+ unsigned long node, const char *compat)
{
const char *cp;
- int cplen;
- unsigned long l, score = 0;
+ int idx = 0, score = 0;
- cp = fdt_getprop(blob, node, "compatible", &cplen);
- if (cp == NULL)
- return 0;
- while (cplen > 0) {
+ while ((cp = fdt_stringlist_get(blob, node, "compatible", idx++, NULL))) {
score++;
if (of_compat_cmp(cp, compat, strlen(compat)) == 0)
return score;
- l = strlen(cp) + 1;
- cp += l;
- cplen -= l;
}
return 0;
@@ -741,9 +734,10 @@ const char * __init of_flat_dt_get_machine_name(void)
const char *name;
unsigned long dt_root = of_get_flat_dt_root();
- name = of_get_flat_dt_prop(dt_root, "model", NULL);
+ name = fdt_stringlist_get(initial_boot_params, dt_root, "model", 0, NULL);
if (!name)
- name = of_get_flat_dt_prop(dt_root, "compatible", NULL);
+ name = fdt_stringlist_get(initial_boot_params, dt_root,
+ "compatible", 0, NULL);
return name;
}
@@ -775,19 +769,14 @@ const void * __init of_flat_dt_match_machine(const void *default_match,
}
if (!best_data) {
const char *prop;
- int size;
+ int idx = 0, size;
pr_err("\n unrecognized device tree list:\n[ ");
- prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
- if (prop) {
- while (size > 0) {
- printk("'%s' ", prop);
- size -= strlen(prop) + 1;
- prop += strlen(prop) + 1;
- }
- }
- printk("]\n\n");
+ while ((prop = fdt_stringlist_get(initial_boot_params, dt_root,
+ "compatible", idx++, &size)))
+ pr_err("'%s' ", prop);
+ pr_err("]\n\n");
return NULL;
}
@@ -974,9 +963,9 @@ int __init early_init_dt_scan_chosen_stdout(void)
if (offset < 0)
return -ENOENT;
- p = fdt_getprop(fdt, offset, "stdout-path", &l);
+ p = fdt_stringlist_get(fdt, offset, "stdout-path", 0, &l);
if (!p)
- p = fdt_getprop(fdt, offset, "linux,stdout-path", &l);
+ p = fdt_stringlist_get(fdt, offset, "linux,stdout-path", 0, &l);
if (!p || !l)
return -ENOENT;
@@ -1052,7 +1041,8 @@ int __init early_init_dt_scan_memory(void)
const void *fdt = initial_boot_params;
fdt_for_each_subnode(node, fdt, 0) {
- const char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+ const char *type = fdt_stringlist_get(fdt, node,
+ "device_type", 0, NULL);
const __be32 *reg;
int i, l;
bool hotpluggable;