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-rw-r--r--drivers/of/address.c24
-rw-r--r--drivers/of/base.c46
-rw-r--r--drivers/of/device.c131
-rw-r--r--drivers/of/dynamic.c33
-rw-r--r--drivers/of/irq.c77
-rw-r--r--drivers/of/of_mdio.c43
-rw-r--r--drivers/of/of_pci.c72
-rw-r--r--drivers/of/overlay.c142
-rw-r--r--drivers/of/platform.c34
-rw-r--r--drivers/of/property.c89
-rw-r--r--drivers/of/unittest-data/Makefile19
-rw-r--r--drivers/of/unittest-data/overlay.dts31
-rw-r--r--drivers/of/unittest-data/overlay_bad_symbol.dts22
-rw-r--r--drivers/of/unittest-data/overlay_base.dts11
-rw-r--r--drivers/of/unittest.c77
15 files changed, 522 insertions, 329 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 580bbf6ca2b1..792722e7d458 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -274,10 +274,9 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
/* Now consume following elements while they are contiguous */
while (parser->range + parser->np <= parser->end) {
- u32 flags, pci_space;
+ u32 flags;
u64 pci_addr, cpu_addr, size;
- pci_space = be32_to_cpup(parser->range);
flags = of_bus_pci_get_flags(parser->range);
pci_addr = of_read_number(parser->range + 1, ns);
cpu_addr = of_translate_address(parser->node,
@@ -559,7 +558,7 @@ static u64 __of_translate_address(struct device_node *dev,
int na, ns, pna, pns;
u64 result = OF_BAD_ADDR;
- pr_debug("** translation for device %s **\n", of_node_full_name(dev));
+ pr_debug("** translation for device %pOF **\n", dev);
/* Increase refcount at current level */
of_node_get(dev);
@@ -573,13 +572,13 @@ static u64 __of_translate_address(struct device_node *dev,
/* Count address cells & copy address locally */
bus->count_cells(dev, &na, &ns);
if (!OF_CHECK_COUNTS(na, ns)) {
- pr_debug("Bad cell count for %s\n", of_node_full_name(dev));
+ pr_debug("Bad cell count for %pOF\n", dev);
goto bail;
}
memcpy(addr, in_addr, na * 4);
- pr_debug("bus is %s (na=%d, ns=%d) on %s\n",
- bus->name, na, ns, of_node_full_name(parent));
+ pr_debug("bus is %s (na=%d, ns=%d) on %pOF\n",
+ bus->name, na, ns, parent);
of_dump_addr("translating address:", addr, na);
/* Translate */
@@ -600,13 +599,12 @@ static u64 __of_translate_address(struct device_node *dev,
pbus = of_match_bus(parent);
pbus->count_cells(dev, &pna, &pns);
if (!OF_CHECK_COUNTS(pna, pns)) {
- pr_err("Bad cell count for %s\n",
- of_node_full_name(dev));
+ pr_err("Bad cell count for %pOF\n", dev);
break;
}
- pr_debug("parent bus is %s (na=%d, ns=%d) on %s\n",
- pbus->name, pna, pns, of_node_full_name(parent));
+ pr_debug("parent bus is %s (na=%d, ns=%d) on %pOF\n",
+ pbus->name, pna, pns, parent);
/* Apply bus translation */
if (of_translate_one(dev, bus, pbus, addr, na, ns, pna, rprop))
@@ -855,7 +853,7 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz
}
if (!ranges) {
- pr_debug("no dma-ranges found for node(%s)\n", np->full_name);
+ pr_debug("no dma-ranges found for node(%pOF)\n", np);
ret = -ENODEV;
goto out;
}
@@ -872,8 +870,8 @@ int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *siz
dmaaddr = of_read_number(ranges, naddr);
*paddr = of_translate_dma_address(np, ranges);
if (*paddr == OF_BAD_ADDR) {
- pr_err("translation of DMA address(%pad) to CPU address failed node(%s)\n",
- dma_addr, np->full_name);
+ pr_err("translation of DMA address(%pad) to CPU address failed node(%pOF)\n",
+ dma_addr, np);
ret = -EINVAL;
goto out;
}
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 686628d1dfa6..260d33c0f26c 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -60,14 +60,13 @@ DEFINE_RAW_SPINLOCK(devtree_lock);
int of_n_addr_cells(struct device_node *np)
{
- const __be32 *ip;
+ u32 cells;
do {
if (np->parent)
np = np->parent;
- ip = of_get_property(np, "#address-cells", NULL);
- if (ip)
- return be32_to_cpup(ip);
+ if (!of_property_read_u32(np, "#address-cells", &cells))
+ return cells;
} while (np->parent);
/* No #address-cells property for the root node */
return OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
@@ -76,14 +75,13 @@ EXPORT_SYMBOL(of_n_addr_cells);
int of_n_size_cells(struct device_node *np)
{
- const __be32 *ip;
+ u32 cells;
do {
if (np->parent)
np = np->parent;
- ip = of_get_property(np, "#size-cells", NULL);
- if (ip)
- return be32_to_cpup(ip);
+ if (!of_property_read_u32(np, "#size-cells", &cells))
+ return cells;
} while (np->parent);
/* No #size-cells property for the root node */
return OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
@@ -160,7 +158,7 @@ int __of_add_property_sysfs(struct device_node *np, struct property *pp)
pp->attr.read = of_node_property_read;
rc = sysfs_create_bin_file(&np->kobj, &pp->attr);
- WARN(rc, "error adding attribute %s to node %s\n", pp->name, np->full_name);
+ WARN(rc, "error adding attribute %s to node %pOF\n", pp->name, np);
return rc;
}
@@ -1122,7 +1120,7 @@ EXPORT_SYMBOL(of_find_node_by_phandle);
void of_print_phandle_args(const char *msg, const struct of_phandle_args *args)
{
int i;
- printk("%s %s", msg, of_node_full_name(args->np));
+ printk("%s %pOF", msg, args->np);
for (i = 0; i < args->args_count; i++) {
const char delim = i ? ',' : ':';
@@ -1184,17 +1182,17 @@ int of_phandle_iterator_next(struct of_phandle_iterator *it)
if (it->cells_name) {
if (!it->node) {
- pr_err("%s: could not find phandle\n",
- it->parent->full_name);
+ pr_err("%pOF: could not find phandle\n",
+ it->parent);
goto err;
}
if (of_property_read_u32(it->node, it->cells_name,
&count)) {
- pr_err("%s: could not get %s for %s\n",
- it->parent->full_name,
+ pr_err("%pOF: could not get %s for %pOF\n",
+ it->parent,
it->cells_name,
- it->node->full_name);
+ it->node);
goto err;
}
} else {
@@ -1206,8 +1204,8 @@ int of_phandle_iterator_next(struct of_phandle_iterator *it)
* property data length
*/
if (it->cur + count > it->list_end) {
- pr_err("%s: arguments longer than property\n",
- it->parent->full_name);
+ pr_err("%pOF: arguments longer than property\n",
+ it->parent);
goto err;
}
}
@@ -1639,8 +1637,8 @@ static void of_alias_add(struct alias_prop *ap, struct device_node *np,
strncpy(ap->stem, stem, stem_len);
ap->stem[stem_len] = 0;
list_add_tail(&ap->link, &aliases_lookup);
- pr_debug("adding DT alias:%s: stem=%s id=%i node=%s\n",
- ap->alias, ap->stem, ap->id, of_node_full_name(np));
+ pr_debug("adding DT alias:%s: stem=%s id=%i node=%pOF\n",
+ ap->alias, ap->stem, ap->id, np);
}
/**
@@ -1664,11 +1662,13 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
if (of_chosen) {
/* linux,stdout-path and /aliases/stdout are for legacy compatibility */
- const char *name = of_get_property(of_chosen, "stdout-path", NULL);
- if (!name)
- name = of_get_property(of_chosen, "linux,stdout-path", NULL);
+ const char *name = NULL;
+
+ if (of_property_read_string(of_chosen, "stdout-path", &name))
+ of_property_read_string(of_chosen, "linux,stdout-path",
+ &name);
if (IS_ENABLED(CONFIG_PPC) && !name)
- name = of_get_property(of_aliases, "stdout", NULL);
+ of_property_read_string(of_aliases, "stdout", &name);
if (name)
of_stdout = of_find_node_opts_by_path(name, &of_stdout_options);
}
diff --git a/drivers/of/device.c b/drivers/of/device.c
index 28c38c756f92..64b710265d39 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -9,6 +9,9 @@
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
#include <asm/errno.h>
#include "of_private.h"
@@ -58,7 +61,7 @@ int of_device_add(struct platform_device *ofdev)
/* name and id have to be set so that the platform bus doesn't get
* confused on matching */
ofdev->name = dev_name(&ofdev->dev);
- ofdev->id = -1;
+ ofdev->id = PLATFORM_DEVID_NONE;
/*
* If this device has not binding numa node in devicetree, that is
@@ -84,30 +87,28 @@ int of_device_add(struct platform_device *ofdev)
*/
int of_dma_configure(struct device *dev, struct device_node *np)
{
- u64 dma_addr, paddr, size;
+ u64 dma_addr, paddr, size = 0;
int ret;
bool coherent;
unsigned long offset;
const struct iommu_ops *iommu;
-
- /*
- * Set default coherent_dma_mask to 32 bit. Drivers are expected to
- * setup the correct supported mask.
- */
- if (!dev->coherent_dma_mask)
- dev->coherent_dma_mask = DMA_BIT_MASK(32);
-
- /*
- * Set it to coherent_dma_mask by default if the architecture
- * code has not set it.
- */
- if (!dev->dma_mask)
- dev->dma_mask = &dev->coherent_dma_mask;
+ u64 mask;
ret = of_dma_get_range(np, &dma_addr, &paddr, &size);
if (ret < 0) {
+ /*
+ * For legacy reasons, we have to assume some devices need
+ * DMA configuration regardless of whether "dma-ranges" is
+ * correctly specified or not.
+ */
+ if (!dev_is_pci(dev) &&
+#ifdef CONFIG_ARM_AMBA
+ dev->bus != &amba_bustype &&
+#endif
+ dev->bus != &platform_bus_type)
+ return ret == -ENODEV ? 0 : ret;
+
dma_addr = offset = 0;
- size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
} else {
offset = PFN_DOWN(paddr - dma_addr);
@@ -128,16 +129,31 @@ int of_dma_configure(struct device *dev, struct device_node *np)
dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", offset);
}
+ /*
+ * Set default coherent_dma_mask to 32 bit. Drivers are expected to
+ * setup the correct supported mask.
+ */
+ if (!dev->coherent_dma_mask)
+ dev->coherent_dma_mask = DMA_BIT_MASK(32);
+ /*
+ * Set it to coherent_dma_mask by default if the architecture
+ * code has not set it.
+ */
+ if (!dev->dma_mask)
+ dev->dma_mask = &dev->coherent_dma_mask;
+
+ if (!size)
+ size = max(dev->coherent_dma_mask, dev->coherent_dma_mask + 1);
+
dev->dma_pfn_offset = offset;
/*
* Limit coherent and dma mask based on size and default mask
* set by the driver.
*/
- dev->coherent_dma_mask = min(dev->coherent_dma_mask,
- DMA_BIT_MASK(ilog2(dma_addr + size)));
- *dev->dma_mask = min((*dev->dma_mask),
- DMA_BIT_MASK(ilog2(dma_addr + size)));
+ mask = DMA_BIT_MASK(ilog2(dma_addr + size - 1) + 1);
+ dev->coherent_dma_mask &= mask;
+ *dev->dma_mask &= mask;
coherent = of_dma_is_coherent(np);
dev_dbg(dev, "device is%sdma coherent\n",
@@ -196,8 +212,10 @@ EXPORT_SYMBOL(of_device_get_match_data);
static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len)
{
const char *compat;
- int cplen, i;
- ssize_t tsize, csize, repend;
+ char *c;
+ struct property *p;
+ ssize_t csize;
+ ssize_t tsize;
if ((!dev) || (!dev->of_node))
return -ENODEV;
@@ -205,42 +223,28 @@ static ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len
/* Name & Type */
csize = snprintf(str, len, "of:N%sT%s", dev->of_node->name,
dev->of_node->type);
-
- /* Get compatible property if any */
- compat = of_get_property(dev->of_node, "compatible", &cplen);
- if (!compat)
- return csize;
-
- /* Find true end (we tolerate multiple \0 at the end */
- for (i = (cplen - 1); i >= 0 && !compat[i]; i--)
- cplen--;
- if (!cplen)
- return csize;
- cplen++;
-
- /* Check space (need cplen+1 chars including final \0) */
- tsize = csize + cplen;
- repend = tsize;
-
- if (csize >= len) /* @ the limit, all is already filled */
- return tsize;
-
- if (tsize >= len) { /* limit compat list */
- cplen = len - csize - 1;
- repend = len;
- }
-
- /* Copy and do char replacement */
- memcpy(&str[csize + 1], compat, cplen);
- for (i = csize; i < repend; i++) {
- char c = str[i];
- if (c == '\0')
- str[i] = 'C';
- else if (c == ' ')
- str[i] = '_';
+ tsize = csize;
+ len -= csize;
+ if (str)
+ str += csize;
+
+ of_property_for_each_string(dev->of_node, "compatible", p, compat) {
+ csize = strlen(compat) + 1;
+ tsize += csize;
+ if (csize > len)
+ continue;
+
+ csize = snprintf(str, len, "C%s", compat);
+ for (c = str; c; ) {
+ c = strchr(c, ' ');
+ if (c)
+ *c++ = '_';
+ }
+ len -= csize;
+ str += csize;
}
- return repend;
+ return tsize;
}
int of_device_request_module(struct device *dev)
@@ -274,6 +278,8 @@ ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len)
ssize_t sl = of_device_get_modalias(dev, str, len - 2);
if (sl < 0)
return sl;
+ if (sl > len - 2)
+ return -ENOMEM;
str[sl++] = '\n';
str[sl] = 0;
@@ -288,25 +294,22 @@ void of_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
const char *compat;
struct alias_prop *app;
- int seen = 0, cplen, sl;
+ struct property *p;
+ int seen = 0;
if ((!dev) || (!dev->of_node))
return;
add_uevent_var(env, "OF_NAME=%s", dev->of_node->name);
- add_uevent_var(env, "OF_FULLNAME=%s", dev->of_node->full_name);
+ add_uevent_var(env, "OF_FULLNAME=%pOF", dev->of_node);
if (dev->of_node->type && strcmp("<NULL>", dev->of_node->type) != 0)
add_uevent_var(env, "OF_TYPE=%s", dev->of_node->type);
/* Since the compatible field can contain pretty much anything
* it's not really legal to split it out with commas. We split it
* up using a number of environment variables instead. */
- compat = of_get_property(dev->of_node, "compatible", &cplen);
- while (compat && *compat && cplen > 0) {
+ of_property_for_each_string(dev->of_node, "compatible", p, compat) {
add_uevent_var(env, "OF_COMPATIBLE_%d=%s", seen, compat);
- sl = strlen(compat) + 1;
- compat += sl;
- cplen -= sl;
seen++;
}
add_uevent_var(env, "OF_COMPATIBLE_N=%d", seen);
diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c
index 0542cf8b6e3d..301b6db2b48d 100644
--- a/drivers/of/dynamic.c
+++ b/drivers/of/dynamic.c
@@ -98,14 +98,14 @@ int of_reconfig_notify(unsigned long action, struct of_reconfig_data *p)
switch (action) {
case OF_RECONFIG_ATTACH_NODE:
case OF_RECONFIG_DETACH_NODE:
- pr_debug("notify %-15s %s\n", action_names[action],
- pr->dn->full_name);
+ pr_debug("notify %-15s %pOF\n", action_names[action],
+ pr->dn);
break;
case OF_RECONFIG_ADD_PROPERTY:
case OF_RECONFIG_REMOVE_PROPERTY:
case OF_RECONFIG_UPDATE_PROPERTY:
- pr_debug("notify %-15s %s:%s\n", action_names[action],
- pr->dn->full_name, pr->prop->name);
+ pr_debug("notify %-15s %pOF:%s\n", action_names[action],
+ pr->dn, pr->prop->name);
break;
}
@@ -328,11 +328,10 @@ void of_node_release(struct kobject *kobj)
/* We should never be releasing nodes that haven't been detached. */
if (!of_node_check_flag(node, OF_DETACHED)) {
- pr_err("ERROR: Bad of_node_put() on %s\n", node->full_name);
+ pr_err("ERROR: Bad of_node_put() on %pOF\n", node);
dump_stack();
return;
}
-
if (!of_node_check_flag(node, OF_DYNAMIC))
return;
@@ -462,13 +461,13 @@ static void __of_changeset_entry_dump(struct of_changeset_entry *ce)
case OF_RECONFIG_ADD_PROPERTY:
case OF_RECONFIG_REMOVE_PROPERTY:
case OF_RECONFIG_UPDATE_PROPERTY:
- pr_debug("cset<%p> %-15s %s/%s\n", ce, action_names[ce->action],
- ce->np->full_name, ce->prop->name);
+ pr_debug("cset<%p> %-15s %pOF/%s\n", ce, action_names[ce->action],
+ ce->np, ce->prop->name);
break;
case OF_RECONFIG_ATTACH_NODE:
case OF_RECONFIG_DETACH_NODE:
- pr_debug("cset<%p> %-15s %s\n", ce, action_names[ce->action],
- ce->np->full_name);
+ pr_debug("cset<%p> %-15s %pOF\n", ce, action_names[ce->action],
+ ce->np);
break;
}
}
@@ -539,7 +538,7 @@ static void __of_changeset_entry_notify(struct of_changeset_entry *ce, bool reve
}
if (ret)
- pr_err("changeset notifier error @%s\n", ce->np->full_name);
+ pr_err("changeset notifier error @%pOF\n", ce->np);
}
static int __of_changeset_entry_apply(struct of_changeset_entry *ce)
@@ -570,8 +569,8 @@ static int __of_changeset_entry_apply(struct of_changeset_entry *ce)
ret = __of_add_property(ce->np, ce->prop);
if (ret) {
- pr_err("changeset: add_property failed @%s/%s\n",
- ce->np->full_name,
+ pr_err("changeset: add_property failed @%pOF/%s\n",
+ ce->np,
ce->prop->name);
break;
}
@@ -579,8 +578,8 @@ static int __of_changeset_entry_apply(struct of_changeset_entry *ce)
case OF_RECONFIG_REMOVE_PROPERTY:
ret = __of_remove_property(ce->np, ce->prop);
if (ret) {
- pr_err("changeset: remove_property failed @%s/%s\n",
- ce->np->full_name,
+ pr_err("changeset: remove_property failed @%pOF/%s\n",
+ ce->np,
ce->prop->name);
break;
}
@@ -598,8 +597,8 @@ static int __of_changeset_entry_apply(struct of_changeset_entry *ce)
ret = __of_update_property(ce->np, ce->prop, &old_prop);
if (ret) {
- pr_err("changeset: update_property failed @%s/%s\n",
- ce->np->full_name,
+ pr_err("changeset: update_property failed @%pOF/%s\n",
+ ce->np,
ce->prop->name);
break;
}
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index ab21c846eb27..ec00ae7384c2 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -59,20 +59,19 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
struct device_node *of_irq_find_parent(struct device_node *child)
{
struct device_node *p;
- const __be32 *parp;
+ phandle parent;
if (!of_node_get(child))
return NULL;
do {
- parp = of_get_property(child, "interrupt-parent", NULL);
- if (parp == NULL)
+ if (of_property_read_u32(child, "interrupt-parent", &parent)) {
p = of_get_parent(child);
- else {
+ } else {
if (of_irq_workarounds & OF_IMAP_NO_PHANDLE)
p = of_node_get(of_irq_dflt_pic);
else
- p = of_find_node_by_phandle(be32_to_cpup(parp));
+ p = of_find_node_by_phandle(parent);
}
of_node_put(child);
child = p;
@@ -117,11 +116,8 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
* is none, we are nice and just walk up the tree
*/
do {
- tmp = of_get_property(ipar, "#interrupt-cells", NULL);
- if (tmp != NULL) {
- intsize = be32_to_cpu(*tmp);
+ if (!of_property_read_u32(ipar, "#interrupt-cells", &intsize))
break;
- }
tnode = ipar;
ipar = of_irq_find_parent(ipar);
of_node_put(tnode);
@@ -131,7 +127,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
goto fail;
}
- pr_debug("of_irq_parse_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
+ pr_debug("of_irq_parse_raw: ipar=%pOF, size=%d\n", ipar, intsize);
if (out_irq->args_count != intsize)
goto fail;
@@ -169,8 +165,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
/* Now check if cursor is an interrupt-controller and if it is
* then we are done
*/
- if (of_get_property(ipar, "interrupt-controller", NULL) !=
- NULL) {
+ if (of_property_read_bool(ipar, "interrupt-controller")) {
pr_debug(" -> got it !\n");
return 0;
}
@@ -229,14 +224,14 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
/* Get #interrupt-cells and #address-cells of new
* parent
*/
- tmp = of_get_property(newpar, "#interrupt-cells", NULL);
- if (tmp == NULL) {
+ if (of_property_read_u32(newpar, "#interrupt-cells",
+ &newintsize)) {
pr_debug(" -> parent lacks #interrupt-cells!\n");
goto fail;
}
- newintsize = be32_to_cpu(*tmp);
- tmp = of_get_property(newpar, "#address-cells", NULL);
- newaddrsize = (tmp == NULL) ? 0 : be32_to_cpu(*tmp);
+ if (of_property_read_u32(newpar, "#address-cells",
+ &newaddrsize))
+ newaddrsize = 0;
pr_debug(" -> newintsize=%d, newaddrsize=%d\n",
newintsize, newaddrsize);
@@ -269,7 +264,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
skiplevel:
/* Iterate again with new parent */
out_irq->np = newpar;
- pr_debug(" -> new parent: %s\n", of_node_full_name(newpar));
+ pr_debug(" -> new parent: %pOF\n", newpar);
of_node_put(ipar);
ipar = newpar;
newpar = NULL;
@@ -297,11 +292,11 @@ EXPORT_SYMBOL_GPL(of_irq_parse_raw);
int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_args *out_irq)
{
struct device_node *p;
- const __be32 *intspec, *tmp, *addr;
- u32 intsize, intlen;
+ const __be32 *addr;
+ u32 intsize;
int i, res;
- pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
+ pr_debug("of_irq_parse_one: dev=%pOF, index=%d\n", device, index);
/* OldWorld mac stuff is "special", handle out of line */
if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
@@ -316,42 +311,32 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
if (!res)
return of_irq_parse_raw(addr, out_irq);
- /* Get the interrupts property */
- intspec = of_get_property(device, "interrupts", &intlen);
- if (intspec == NULL)
- return -EINVAL;
-
- intlen /= sizeof(*intspec);
-
- pr_debug(" intspec=%d intlen=%d\n", be32_to_cpup(intspec), intlen);
-
/* Look for the interrupt parent. */
p = of_irq_find_parent(device);
if (p == NULL)
return -EINVAL;
/* Get size of interrupt specifier */
- tmp = of_get_property(p, "#interrupt-cells", NULL);
- if (tmp == NULL) {
+ if (of_property_read_u32(p, "#interrupt-cells", &intsize)) {
res = -EINVAL;
goto out;
}
- intsize = be32_to_cpu(*tmp);
- pr_debug(" intsize=%d intlen=%d\n", intsize, intlen);
-
- /* Check index */
- if ((index + 1) * intsize > intlen) {
- res = -EINVAL;
- goto out;
- }
+ pr_debug(" parent=%pOF, intsize=%d\n", p, intsize);
/* Copy intspec into irq structure */
- intspec += index * intsize;
out_irq->np = p;
out_irq->args_count = intsize;
- for (i = 0; i < intsize; i++)
- out_irq->args[i] = be32_to_cpup(intspec++);
+ for (i = 0; i < intsize; i++) {
+ res = of_property_read_u32_index(device, "interrupts",
+ (index * intsize) + i,
+ out_irq->args + i);
+ if (res)
+ goto out;
+ }
+
+ pr_debug(" intspec=%d\n", *out_irq->args);
+
/* Check if there are any interrupt-map translations to process */
res = of_irq_parse_raw(addr, out_irq);
@@ -508,7 +493,7 @@ void __init of_irq_init(const struct of_device_id *matches)
INIT_LIST_HEAD(&intc_parent_list);
for_each_matching_node_and_match(np, matches, &match) {
- if (!of_find_property(np, "interrupt-controller", NULL) ||
+ if (!of_property_read_bool(np, "interrupt-controller") ||
!of_device_is_available(np))
continue;
@@ -555,8 +540,8 @@ void __init of_irq_init(const struct of_device_id *matches)
of_node_set_flag(desc->dev, OF_POPULATED);
- pr_debug("of_irq_init: init %s (%p), parent %p\n",
- desc->dev->full_name,
+ pr_debug("of_irq_init: init %pOF (%p), parent %p\n",
+ desc->dev,
desc->dev, desc->interrupt_parent);
ret = desc->irq_init_cb(desc->dev,
desc->interrupt_parent);
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index e0dbd6e48a98..d94dd8b77abd 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -166,8 +166,8 @@ static bool of_mdiobus_child_is_phy(struct device_node *child)
if (of_match_node(whitelist_phys, child)) {
pr_warn(FW_WARN
- "%s: Whitelisted compatible string. Please remove\n",
- child->full_name);
+ "%pOF: Whitelisted compatible string. Please remove\n",
+ child);
return true;
}
@@ -421,19 +421,14 @@ int of_phy_register_fixed_link(struct device_node *np)
{
struct fixed_phy_status status = {};
struct device_node *fixed_link_node;
- const __be32 *fixed_link_prop;
- int link_gpio;
- int len, err;
- struct phy_device *phy;
+ u32 fixed_link_prop[5];
const char *managed;
+ int link_gpio = -1;
- err = of_property_read_string(np, "managed", &managed);
- if (err == 0) {
- if (strcmp(managed, "in-band-status") == 0) {
- /* status is zeroed, namely its .link member */
- phy = fixed_phy_register(PHY_POLL, &status, -1, np);
- return PTR_ERR_OR_ZERO(phy);
- }
+ if (of_property_read_string(np, "managed", &managed) == 0 &&
+ strcmp(managed, "in-band-status") == 0) {
+ /* status is zeroed, namely its .link member */
+ goto register_phy;
}
/* New binding */
@@ -456,23 +451,25 @@ int of_phy_register_fixed_link(struct device_node *np)
if (link_gpio == -EPROBE_DEFER)
return -EPROBE_DEFER;
- phy = fixed_phy_register(PHY_POLL, &status, link_gpio, np);
- return PTR_ERR_OR_ZERO(phy);
+ goto register_phy;
}
/* Old binding */
- fixed_link_prop = of_get_property(np, "fixed-link", &len);
- if (fixed_link_prop && len == (5 * sizeof(__be32))) {
+ if (of_property_read_u32_array(np, "fixed-link", fixed_link_prop,
+ ARRAY_SIZE(fixed_link_prop)) == 0) {
status.link = 1;
- status.duplex = be32_to_cpu(fixed_link_prop[1]);
- status.speed = be32_to_cpu(fixed_link_prop[2]);
- status.pause = be32_to_cpu(fixed_link_prop[3]);
- status.asym_pause = be32_to_cpu(fixed_link_prop[4]);
- phy = fixed_phy_register(PHY_POLL, &status, -1, np);
- return PTR_ERR_OR_ZERO(phy);
+ status.duplex = fixed_link_prop[1];
+ status.speed = fixed_link_prop[2];
+ status.pause = fixed_link_prop[3];
+ status.asym_pause = fixed_link_prop[4];
+ goto register_phy;
}
return -ENODEV;
+
+register_phy:
+ return PTR_ERR_OR_ZERO(fixed_phy_register(PHY_POLL, &status, link_gpio,
+ np));
}
EXPORT_SYMBOL(of_phy_register_fixed_link);
diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
index c9d4d3a7b0fe..e9ec931f5b9a 100644
--- a/drivers/of/of_pci.c
+++ b/drivers/of/of_pci.c
@@ -57,15 +57,14 @@ EXPORT_SYMBOL_GPL(of_pci_find_child_device);
*/
int of_pci_get_devfn(struct device_node *np)
{
- unsigned int size;
- const __be32 *reg;
+ u32 reg[5];
+ int error;
- reg = of_get_property(np, "reg", &size);
+ error = of_property_read_u32_array(np, "reg", reg, ARRAY_SIZE(reg));
+ if (error)
+ return error;
- if (!reg || size < 5 * sizeof(__be32))
- return -EINVAL;
-
- return (be32_to_cpup(reg) >> 8) & 0xff;
+ return (reg[0] >> 8) & 0xff;
}
EXPORT_SYMBOL_GPL(of_pci_get_devfn);
@@ -78,16 +77,17 @@ EXPORT_SYMBOL_GPL(of_pci_get_devfn);
*/
int of_pci_parse_bus_range(struct device_node *node, struct resource *res)
{
- const __be32 *values;
- int len;
+ u32 bus_range[2];
+ int error;
- values = of_get_property(node, "bus-range", &len);
- if (!values || len < sizeof(*values) * 2)
- return -EINVAL;
+ error = of_property_read_u32_array(node, "bus-range", bus_range,
+ ARRAY_SIZE(bus_range));
+ if (error)
+ return error;
res->name = node->name;
- res->start = be32_to_cpup(values++);
- res->end = be32_to_cpup(values);
+ res->start = bus_range[0];
+ res->end = bus_range[1];
res->flags = IORESOURCE_BUS;
return 0;
@@ -105,17 +105,14 @@ EXPORT_SYMBOL_GPL(of_pci_parse_bus_range);
*/
int of_get_pci_domain_nr(struct device_node *node)
{
- const __be32 *value;
- int len;
- u16 domain;
-
- value = of_get_property(node, "linux,pci-domain", &len);
- if (!value || len < sizeof(*value))
- return -EINVAL;
+ u32 domain;
+ int error;
- domain = (u16)be32_to_cpup(value);
+ error = of_property_read_u32(node, "linux,pci-domain", &domain);
+ if (error)
+ return error;
- return domain;
+ return (u16)domain;
}
EXPORT_SYMBOL_GPL(of_get_pci_domain_nr);
@@ -204,15 +201,15 @@ int of_pci_get_host_bridge_resources(struct device_node *dev,
if (!bus_range)
return -ENOMEM;
- pr_info("host bridge %s ranges:\n", dev->full_name);
+ pr_info("host bridge %pOF ranges:\n", dev);
err = of_pci_parse_bus_range(dev, bus_range);
if (err) {
bus_range->start = busno;
bus_range->end = bus_max;
bus_range->flags = IORESOURCE_BUS;
- pr_info(" No bus range found for %s, using %pR\n",
- dev->full_name, bus_range);
+ pr_info(" No bus range found for %pOF, using %pR\n",
+ dev, bus_range);
} else {
if (bus_range->end > bus_range->start + bus_max)
bus_range->end = bus_range->start + bus_max;
@@ -258,14 +255,14 @@ int of_pci_get_host_bridge_resources(struct device_node *dev,
if (resource_type(res) == IORESOURCE_IO) {
if (!io_base) {
- pr_err("I/O range found for %s. Please provide an io_base pointer to save CPU base address\n",
- dev->full_name);
+ pr_err("I/O range found for %pOF. Please provide an io_base pointer to save CPU base address\n",
+ dev);
err = -EINVAL;
goto conversion_failed;
}
if (*io_base != (resource_size_t)OF_BAD_ADDR)
- pr_warn("More than one I/O resource converted for %s. CPU base address for old range lost!\n",
- dev->full_name);
+ pr_warn("More than one I/O resource converted for %pOF. CPU base address for old range lost!\n",
+ dev);
*io_base = range.cpu_addr;
}
@@ -325,7 +322,7 @@ int of_pci_map_rid(struct device_node *np, u32 rid,
}
if (!map_len || map_len % (4 * sizeof(*map))) {
- pr_err("%s: Error: Bad %s length: %d\n", np->full_name,
+ pr_err("%pOF: Error: Bad %s length: %d\n", np,
map_name, map_len);
return -EINVAL;
}
@@ -349,8 +346,8 @@ int of_pci_map_rid(struct device_node *np, u32 rid,
u32 rid_len = be32_to_cpup(map + 3);
if (rid_base & ~map_mask) {
- pr_err("%s: Invalid %s translation - %s-mask (0x%x) ignores rid-base (0x%x)\n",
- np->full_name, map_name, map_name,
+ pr_err("%pOF: Invalid %s translation - %s-mask (0x%x) ignores rid-base (0x%x)\n",
+ np, map_name, map_name,
map_mask, rid_base);
return -EFAULT;
}
@@ -375,14 +372,13 @@ int of_pci_map_rid(struct device_node *np, u32 rid,
if (id_out)
*id_out = masked_rid - rid_base + out_base;
- pr_debug("%s: %s, using mask %08x, rid-base: %08x, out-base: %08x, length: %08x, rid: %08x -> %08x\n",
- np->full_name, map_name, map_mask, rid_base, out_base,
+ pr_debug("%pOF: %s, using mask %08x, rid-base: %08x, out-base: %08x, length: %08x, rid: %08x -> %08x\n",
+ np, map_name, map_mask, rid_base, out_base,
rid_len, rid, *id_out);
return 0;
}
- pr_err("%s: Invalid %s translation - no match for rid 0x%x on %s\n",
- np->full_name, map_name, rid,
- target && *target ? (*target)->full_name : "any target");
+ pr_err("%pOF: Invalid %s translation - no match for rid 0x%x on %pOF\n",
+ np, map_name, rid, target && *target ? *target : NULL);
return -EFAULT;
}
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index c0e4ee1cd1ba..8ecfee31ab6d 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -35,6 +35,7 @@
struct of_overlay_info {
struct device_node *target;
struct device_node *overlay;
+ bool is_symbols_node;
};
/**
@@ -55,7 +56,8 @@ struct of_overlay {
};
static int of_overlay_apply_one(struct of_overlay *ov,
- struct device_node *target, const struct device_node *overlay);
+ struct device_node *target, const struct device_node *overlay,
+ bool is_symbols_node);
static BLOCKING_NOTIFIER_HEAD(of_overlay_chain);
@@ -92,10 +94,74 @@ static int of_overlay_notify(struct of_overlay *ov,
return 0;
}
+static struct property *dup_and_fixup_symbol_prop(struct of_overlay *ov,
+ const struct property *prop)
+{
+ struct of_overlay_info *ovinfo;
+ struct property *new;
+ const char *overlay_name;
+ char *label_path;
+ char *symbol_path;
+ const char *target_path;
+ int k;
+ int label_path_len;
+ int overlay_name_len;
+ int target_path_len;
+
+ if (!prop->value)
+ return NULL;
+ symbol_path = prop->value;
+
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (!new)
+ return NULL;
+
+ for (k = 0; k < ov->count; k++) {
+ ovinfo = &ov->ovinfo_tab[k];
+ overlay_name = ovinfo->overlay->full_name;
+ overlay_name_len = strlen(overlay_name);
+ if (!strncasecmp(symbol_path, overlay_name, overlay_name_len))
+ break;
+ }
+
+ if (k >= ov->count)
+ goto err_free;
+
+ target_path = ovinfo->target->full_name;
+ target_path_len = strlen(target_path);
+
+ label_path = symbol_path + overlay_name_len;
+ label_path_len = strlen(label_path);
+
+ new->name = kstrdup(prop->name, GFP_KERNEL);
+ new->length = target_path_len + label_path_len + 1;
+ new->value = kzalloc(new->length, GFP_KERNEL);
+
+ if (!new->name || !new->value)
+ goto err_free;
+
+ strcpy(new->value, target_path);
+ strcpy(new->value + target_path_len, label_path);
+
+ /* mark the property as dynamic */
+ of_property_set_flag(new, OF_DYNAMIC);
+
+ return new;
+
+ err_free:
+ kfree(new->name);
+ kfree(new->value);
+ kfree(new);
+ return NULL;
+
+
+}
+
static int of_overlay_apply_single_property(struct of_overlay *ov,
- struct device_node *target, struct property *prop)
+ struct device_node *target, struct property *prop,
+ bool is_symbols_node)
{
- struct property *propn, *tprop;
+ struct property *propn = NULL, *tprop;
/* NOTE: Multiple changes of single properties not supported */
tprop = of_find_property(target, prop->name, NULL);
@@ -106,7 +172,15 @@ static int of_overlay_apply_single_property(struct of_overlay *ov,
of_prop_cmp(prop->name, "linux,phandle") == 0)
return 0;
- propn = __of_prop_dup(prop, GFP_KERNEL);
+ if (is_symbols_node) {
+ /* changing a property in __symbols__ node not allowed */
+ if (tprop)
+ return -EINVAL;
+ propn = dup_and_fixup_symbol_prop(ov, prop);
+ } else {
+ propn = __of_prop_dup(prop, GFP_KERNEL);
+ }
+
if (propn == NULL)
return -ENOMEM;
@@ -130,18 +204,21 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov,
return -ENOMEM;
/* NOTE: Multiple mods of created nodes not supported */
- tchild = of_get_child_by_name(target, cname);
+ for_each_child_of_node(target, tchild)
+ if (!of_node_cmp(cname, kbasename(tchild->full_name)))
+ break;
+
if (tchild != NULL) {
/* new overlay phandle value conflicts with existing value */
if (child->phandle)
return -EINVAL;
/* apply overlay recursively */
- ret = of_overlay_apply_one(ov, tchild, child);
+ ret = of_overlay_apply_one(ov, tchild, child, 0);
of_node_put(tchild);
} else {
/* create empty tree as a target */
- tchild = __of_node_dup(child, "%s/%s", target->full_name, cname);
+ tchild = __of_node_dup(child, "%pOF/%s", target, cname);
if (!tchild)
return -ENOMEM;
@@ -152,7 +229,7 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov,
if (ret)
return ret;
- ret = of_overlay_apply_one(ov, tchild, child);
+ ret = of_overlay_apply_one(ov, tchild, child, 0);
if (ret)
return ret;
}
@@ -168,26 +245,32 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov,
* by using the changeset.
*/
static int of_overlay_apply_one(struct of_overlay *ov,
- struct device_node *target, const struct device_node *overlay)
+ struct device_node *target, const struct device_node *overlay,
+ bool is_symbols_node)
{
struct device_node *child;
struct property *prop;
int ret;
for_each_property_of_node(overlay, prop) {
- ret = of_overlay_apply_single_property(ov, target, prop);
+ ret = of_overlay_apply_single_property(ov, target, prop,
+ is_symbols_node);
if (ret) {
- pr_err("Failed to apply prop @%s/%s\n",
- target->full_name, prop->name);
+ pr_err("Failed to apply prop @%pOF/%s\n",
+ target, prop->name);
return ret;
}
}
+ /* do not allow symbols node to have any children */
+ if (is_symbols_node)
+ return 0;
+
for_each_child_of_node(overlay, child) {
ret = of_overlay_apply_single_device_node(ov, target, child);
if (ret != 0) {
- pr_err("Failed to apply single node @%s/%s\n",
- target->full_name, child->name);
+ pr_err("Failed to apply single node @%pOF/%s\n",
+ target, child->name);
of_node_put(child);
return ret;
}
@@ -213,9 +296,10 @@ static int of_overlay_apply(struct of_overlay *ov)
for (i = 0; i < ov->count; i++) {
struct of_overlay_info *ovinfo = &ov->ovinfo_tab[i];
- err = of_overlay_apply_one(ov, ovinfo->target, ovinfo->overlay);
+ err = of_overlay_apply_one(ov, ovinfo->target, ovinfo->overlay,
+ ovinfo->is_symbols_node);
if (err != 0) {
- pr_err("apply failed '%s'\n", ovinfo->target->full_name);
+ pr_err("apply failed '%pOF'\n", ovinfo->target);
return err;
}
}
@@ -311,6 +395,9 @@ static int of_build_overlay_info(struct of_overlay *ov,
for_each_child_of_node(tree, node)
cnt++;
+ if (of_get_child_by_name(tree, "__symbols__"))
+ cnt++;
+
ovinfo = kcalloc(cnt, sizeof(*ovinfo), GFP_KERNEL);
if (ovinfo == NULL)
return -ENOMEM;
@@ -322,6 +409,20 @@ static int of_build_overlay_info(struct of_overlay *ov,
cnt++;
}
+ node = of_get_child_by_name(tree, "__symbols__");
+ if (node) {
+ ovinfo[cnt].overlay = node;
+ ovinfo[cnt].target = of_find_node_by_path("/__symbols__");
+ ovinfo[cnt].is_symbols_node = 1;
+
+ if (!ovinfo[cnt].target) {
+ pr_err("no symbols in root of device tree.\n");
+ return -EINVAL;
+ }
+
+ cnt++;
+ }
+
/* if nothing filled, return error */
if (cnt == 0) {
kfree(ovinfo);
@@ -400,8 +501,8 @@ int of_overlay_create(struct device_node *tree)
/* build the overlay info structures */
err = of_build_overlay_info(ov, tree);
if (err) {
- pr_err("of_build_overlay_info() failed for tree@%s\n",
- tree->full_name);
+ pr_err("of_build_overlay_info() failed for tree@%pOF\n",
+ tree);
goto err_free_idr;
}
@@ -480,9 +581,8 @@ static int overlay_is_topmost(struct of_overlay *ov, struct device_node *dn)
/* check against each subtree affected by this overlay */
list_for_each_entry(ce, &ovt->cset.entries, node) {
if (overlay_subtree_check(ce->np, dn)) {
- pr_err("%s: #%d clashes #%d @%s\n",
- __func__, ov->id, ovt->id,
- dn->full_name);
+ pr_err("%s: #%d clashes #%d @%pOF\n",
+ __func__, ov->id, ovt->id, dn);
return 0;
}
}
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index b19524623498..ac15d0e3d27d 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -118,7 +118,7 @@ struct platform_device *of_device_alloc(struct device_node *np,
int rc, i, num_reg = 0, num_irq;
struct resource *res, temp_res;
- dev = platform_device_alloc("", -1);
+ dev = platform_device_alloc("", PLATFORM_DEVID_NONE);
if (!dev)
return NULL;
@@ -228,7 +228,7 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
const void *prop;
int i, ret;
- pr_debug("Creating amba device %s\n", node->full_name);
+ pr_debug("Creating amba device %pOF\n", node);
if (!of_device_is_available(node) ||
of_node_test_and_set_flag(node, OF_POPULATED))
@@ -259,15 +259,15 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
ret = of_address_to_resource(node, 0, &dev->res);
if (ret) {
- pr_err("amba: of_address_to_resource() failed (%d) for %s\n",
- ret, node->full_name);
+ pr_err("amba: of_address_to_resource() failed (%d) for %pOF\n",
+ ret, node);
goto err_free;
}
ret = amba_device_add(dev, &iomem_resource);
if (ret) {
- pr_err("amba_device_add() failed (%d) for %s\n",
- ret, node->full_name);
+ pr_err("amba_device_add() failed (%d) for %pOF\n",
+ ret, node);
goto err_free;
}
@@ -310,7 +310,7 @@ static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *l
if (!of_address_to_resource(np, 0, &res))
if (res.start != auxdata->phys_addr)
continue;
- pr_debug("%s: devname=%s\n", np->full_name, auxdata->name);
+ pr_debug("%pOF: devname=%s\n", np, auxdata->name);
return auxdata;
}
@@ -323,7 +323,7 @@ static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *l
if (!of_device_is_compatible(np, auxdata->compatible))
continue;
if (!auxdata->phys_addr && !auxdata->name) {
- pr_debug("%s: compatible match\n", np->full_name);
+ pr_debug("%pOF: compatible match\n", np);
return auxdata;
}
}
@@ -356,14 +356,14 @@ static int of_platform_bus_create(struct device_node *bus,
/* Make sure it has a compatible property */
if (strict && (!of_get_property(bus, "compatible", NULL))) {
- pr_debug("%s() - skipping %s, no compatible prop\n",
- __func__, bus->full_name);
+ pr_debug("%s() - skipping %pOF, no compatible prop\n",
+ __func__, bus);
return 0;
}
if (of_node_check_flag(bus, OF_POPULATED_BUS)) {
- pr_debug("%s() - skipping %s, already populated\n",
- __func__, bus->full_name);
+ pr_debug("%s() - skipping %pOF, already populated\n",
+ __func__, bus);
return 0;
}
@@ -387,7 +387,7 @@ static int of_platform_bus_create(struct device_node *bus,
return 0;
for_each_child_of_node(bus, child) {
- pr_debug(" create child: %s\n", child->full_name);
+ pr_debug(" create child: %pOF\n", child);
rc = of_platform_bus_create(child, matches, lookup, &dev->dev, strict);
if (rc) {
of_node_put(child);
@@ -419,7 +419,7 @@ int of_platform_bus_probe(struct device_node *root,
return -EINVAL;
pr_debug("%s()\n", __func__);
- pr_debug(" starting at: %s\n", root->full_name);
+ pr_debug(" starting at: %pOF\n", root);
/* Do a self check of bus type, if there's a match, create children */
if (of_match_node(matches, root)) {
@@ -471,7 +471,7 @@ int of_platform_populate(struct device_node *root,
return -EINVAL;
pr_debug("%s()\n", __func__);
- pr_debug(" starting at: %s\n", root->full_name);
+ pr_debug(" starting at: %pOF\n", root);
for_each_child_of_node(root, child) {
rc = of_platform_bus_create(child, matches, lookup, parent, true);
@@ -660,8 +660,8 @@ static int of_platform_notify(struct notifier_block *nb,
of_dev_put(pdev_parent);
if (pdev == NULL) {
- pr_err("%s: failed to create for '%s'\n",
- __func__, rd->dn->full_name);
+ pr_err("%s: failed to create for '%pOF'\n",
+ __func__, rd->dn);
/* of_platform_device_create tosses the error code */
return notifier_from_errno(-EINVAL);
}
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 067f9fab7b77..fbb72116e9d4 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -55,8 +55,8 @@ int of_property_count_elems_of_size(const struct device_node *np,
return -ENODATA;
if (prop->length % elem_size != 0) {
- pr_err("size of %s in node %s is not a multiple of %d\n",
- propname, np->full_name, elem_size);
+ pr_err("size of %s in node %pOF is not a multiple of %d\n",
+ propname, np, elem_size);
return -EINVAL;
}
@@ -537,8 +537,8 @@ int of_graph_parse_endpoint(const struct device_node *node,
{
struct device_node *port_node = of_get_parent(node);
- WARN_ONCE(!port_node, "%s(): endpoint %s has no parent node\n",
- __func__, node->full_name);
+ WARN_ONCE(!port_node, "%s(): endpoint %pOF has no parent node\n",
+ __func__, node);
memset(endpoint, 0, sizeof(*endpoint));
@@ -621,14 +621,13 @@ struct device_node *of_graph_get_next_endpoint(const struct device_node *parent,
of_node_put(node);
if (!port) {
- pr_err("graph: no port node found in %s\n",
- parent->full_name);
+ pr_err("graph: no port node found in %pOF\n", parent);
return NULL;
}
} else {
port = of_get_parent(prev);
- if (WARN_ONCE(!port, "%s(): endpoint %s has no parent node\n",
- __func__, prev->full_name))
+ if (WARN_ONCE(!port, "%s(): endpoint %pOF has no parent node\n",
+ __func__, prev))
return NULL;
}
@@ -797,8 +796,8 @@ struct device_node *of_graph_get_remote_node(const struct device_node *node,
endpoint_node = of_graph_get_endpoint_by_regs(node, port, endpoint);
if (!endpoint_node) {
- pr_debug("no valid endpoint (%d, %d) for node %s\n",
- port, endpoint, node->full_name);
+ pr_debug("no valid endpoint (%d, %d) for node %pOF\n",
+ port, endpoint, node);
return NULL;
}
@@ -828,23 +827,23 @@ static void of_fwnode_put(struct fwnode_handle *fwnode)
of_node_put(to_of_node(fwnode));
}
-static bool of_fwnode_device_is_available(struct fwnode_handle *fwnode)
+static bool of_fwnode_device_is_available(const struct fwnode_handle *fwnode)
{
return of_device_is_available(to_of_node(fwnode));
}
-static bool of_fwnode_property_present(struct fwnode_handle *fwnode,
+static bool of_fwnode_property_present(const struct fwnode_handle *fwnode,
const char *propname)
{
return of_property_read_bool(to_of_node(fwnode), propname);
}
-static int of_fwnode_property_read_int_array(struct fwnode_handle *fwnode,
+static int of_fwnode_property_read_int_array(const struct fwnode_handle *fwnode,
const char *propname,
unsigned int elem_size, void *val,
size_t nval)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
if (!val)
return of_property_count_elems_of_size(node, propname,
@@ -864,24 +863,26 @@ static int of_fwnode_property_read_int_array(struct fwnode_handle *fwnode,
return -ENXIO;
}
-static int of_fwnode_property_read_string_array(struct fwnode_handle *fwnode,
- const char *propname,
- const char **val, size_t nval)
+static int
+of_fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
+ const char *propname, const char **val,
+ size_t nval)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
return val ?
of_property_read_string_array(node, propname, val, nval) :
of_property_count_strings(node, propname);
}
-static struct fwnode_handle *of_fwnode_get_parent(struct fwnode_handle *fwnode)
+static struct fwnode_handle *
+of_fwnode_get_parent(const struct fwnode_handle *fwnode)
{
return of_fwnode_handle(of_get_parent(to_of_node(fwnode)));
}
static struct fwnode_handle *
-of_fwnode_get_next_child_node(struct fwnode_handle *fwnode,
+of_fwnode_get_next_child_node(const struct fwnode_handle *fwnode,
struct fwnode_handle *child)
{
return of_fwnode_handle(of_get_next_available_child(to_of_node(fwnode),
@@ -889,10 +890,10 @@ of_fwnode_get_next_child_node(struct fwnode_handle *fwnode,
}
static struct fwnode_handle *
-of_fwnode_get_named_child_node(struct fwnode_handle *fwnode,
+of_fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
const char *childname)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
struct device_node *child;
for_each_available_child_of_node(node, child)
@@ -902,8 +903,38 @@ of_fwnode_get_named_child_node(struct fwnode_handle *fwnode,
return NULL;
}
+static int
+of_fwnode_get_reference_args(const struct fwnode_handle *fwnode,
+ const char *prop, const char *nargs_prop,
+ unsigned int nargs, unsigned int index,
+ struct fwnode_reference_args *args)
+{
+ struct of_phandle_args of_args;
+ unsigned int i;
+ int ret;
+
+ if (nargs_prop)
+ ret = of_parse_phandle_with_args(to_of_node(fwnode), prop,
+ nargs_prop, index, &of_args);
+ else
+ ret = of_parse_phandle_with_fixed_args(to_of_node(fwnode), prop,
+ nargs, index, &of_args);
+ if (ret < 0)
+ return ret;
+ if (!args)
+ return 0;
+
+ args->nargs = of_args.args_count;
+ args->fwnode = of_fwnode_handle(of_args.np);
+
+ for (i = 0; i < NR_FWNODE_REFERENCE_ARGS; i++)
+ args->args[i] = i < of_args.args_count ? of_args.args[i] : 0;
+
+ return 0;
+}
+
static struct fwnode_handle *
-of_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
+of_fwnode_graph_get_next_endpoint(const struct fwnode_handle *fwnode,
struct fwnode_handle *prev)
{
return of_fwnode_handle(of_graph_get_next_endpoint(to_of_node(fwnode),
@@ -911,10 +942,10 @@ of_fwnode_graph_get_next_endpoint(struct fwnode_handle *fwnode,
}
static struct fwnode_handle *
-of_fwnode_graph_get_remote_endpoint(struct fwnode_handle *fwnode)
+of_fwnode_graph_get_remote_endpoint(const struct fwnode_handle *fwnode)
{
- return of_fwnode_handle(of_parse_phandle(to_of_node(fwnode),
- "remote-endpoint", 0));
+ return of_fwnode_handle(
+ of_graph_get_remote_endpoint(to_of_node(fwnode)));
}
static struct fwnode_handle *
@@ -934,10 +965,10 @@ of_fwnode_graph_get_port_parent(struct fwnode_handle *fwnode)
return of_fwnode_handle(of_get_next_parent(np));
}
-static int of_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
+static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
struct fwnode_endpoint *endpoint)
{
- struct device_node *node = to_of_node(fwnode);
+ const struct device_node *node = to_of_node(fwnode);
struct device_node *port_node = of_get_parent(node);
endpoint->local_fwnode = fwnode;
@@ -960,8 +991,10 @@ const struct fwnode_operations of_fwnode_ops = {
.get_parent = of_fwnode_get_parent,
.get_next_child_node = of_fwnode_get_next_child_node,
.get_named_child_node = of_fwnode_get_named_child_node,
+ .get_reference_args = of_fwnode_get_reference_args,
.graph_get_next_endpoint = of_fwnode_graph_get_next_endpoint,
.graph_get_remote_endpoint = of_fwnode_graph_get_remote_endpoint,
.graph_get_port_parent = of_fwnode_graph_get_port_parent,
.graph_parse_endpoint = of_fwnode_graph_parse_endpoint,
};
+EXPORT_SYMBOL_GPL(of_fwnode_ops);
diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index 6e00a9c69e58..2d135fba94c1 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -1,18 +1,27 @@
obj-y += testcases.dtb.o
+
+targets += testcases.dtb testcases.dtb.S
+
+ifdef CONFIG_OF_OVERLAY
+
obj-y += overlay.dtb.o
obj-y += overlay_bad_phandle.dtb.o
+obj-y += overlay_bad_symbol.dtb.o
obj-y += overlay_base.dtb.o
-targets += testcases.dtb testcases.dtb.S
targets += overlay.dtb overlay.dtb.S
targets += overlay_bad_phandle.dtb overlay_bad_phandle.dtb.S
+targets += overlay_bad_symbol.dtb overlay_bad_symbol.dtb.S
targets += overlay_base.dtb overlay_base.dtb.S
-.PRECIOUS: \
- $(obj)/%.dtb.S \
- $(obj)/%.dtb
-
# enable creation of __symbols__ node
DTC_FLAGS_overlay := -@
DTC_FLAGS_overlay_bad_phandle := -@
+DTC_FLAGS_overlay_bad_symbol := -@
DTC_FLAGS_overlay_base := -@
+
+endif
+
+.PRECIOUS: \
+ $(obj)/%.dtb.S \
+ $(obj)/%.dtb
diff --git a/drivers/of/unittest-data/overlay.dts b/drivers/of/unittest-data/overlay.dts
index 6cd7e6a0c13e..9e791fcf05dd 100644
--- a/drivers/of/unittest-data/overlay.dts
+++ b/drivers/of/unittest-data/overlay.dts
@@ -7,7 +7,7 @@
target = <&electric_1>;
__overlay__ {
- status = "ok";
+ status = "okay";
hvac_2: hvac-large-1 {
compatible = "ot,hvac-large";
@@ -23,9 +23,24 @@
__overlay__ {
#address-cells = <1>;
#size-cells = <1>;
- status = "ok";
+ status = "okay";
- ride@200 {
+ ride@100 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ track@30 {
+ incline-up = < 48 32 16 >;
+ };
+
+ track@40 {
+ incline-up = < 47 31 15 >;
+ };
+ };
+
+ ride_200: ride@200 {
+ #address-cells = <1>;
+ #size-cells = <1>;
compatible = "ot,ferris-wheel";
reg = < 0x00000200 0x100 >;
hvac-provider = < &hvac_2 >;
@@ -36,6 +51,14 @@
spin-rph = < 30 >;
gondolas = < 16 >;
gondola-capacity = < 6 >;
+
+ ride_200_left: track@10 {
+ reg = < 0x00000010 0x10 >;
+ };
+
+ ride_200_right: track@20 {
+ reg = < 0x00000020 0x10 >;
+ };
};
};
};
@@ -44,7 +67,7 @@
target = <&lights_2>;
__overlay__ {
- status = "ok";
+ status = "okay";
color = "purple", "white", "red", "green";
rate = < 3 256 >;
};
diff --git a/drivers/of/unittest-data/overlay_bad_symbol.dts b/drivers/of/unittest-data/overlay_bad_symbol.dts
new file mode 100644
index 000000000000..09261cb9a67e
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_bad_symbol.dts
@@ -0,0 +1,22 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+
+ fragment@0 {
+ target = <&electric_1>;
+
+ __overlay__ {
+
+ // This label should cause an error when the overlay
+ // is applied. There is already a symbol hvac_1
+ // in the base tree
+ hvac_1: hvac-medium-2 {
+ compatible = "ot,hvac-medium";
+ heat-range = < 50 75 >;
+ cool-range = < 60 80 >;
+ };
+
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_base.dts b/drivers/of/unittest-data/overlay_base.dts
index 5566b27fb61a..453d0bd83320 100644
--- a/drivers/of/unittest-data/overlay_base.dts
+++ b/drivers/of/unittest-data/overlay_base.dts
@@ -44,6 +44,8 @@
orientation = < 127 >;
ride@100 {
+ #address-cells = <1>;
+ #size-cells = <1>;
compatible = "ot,roller-coaster";
reg = < 0x00000100 0x100 >;
hvac-provider = < &hvac_1 >;
@@ -53,6 +55,15 @@
spin-controller = < &spin_ctrl_2 5 &spin_ctrl_2 7 >;
spin-controller-names = "track_1", "track_2";
queues = < 2 >;
+
+ track@30 {
+ reg = < 0x00000030 0x10 >;
+ };
+
+ track@40 {
+ reg = < 0x00000040 0x10 >;
+ };
+
};
};
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 0107fc680335..29a35cb1da64 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -46,46 +46,54 @@ static struct unittest_results {
static void __init of_unittest_find_node_by_name(void)
{
struct device_node *np;
- const char *options;
+ const char *options, *name;
np = of_find_node_by_path("/testcase-data");
- unittest(np && !strcmp("/testcase-data", np->full_name),
+ name = kasprintf(GFP_KERNEL, "%pOF", np);
+ unittest(np && !strcmp("/testcase-data", name),
"find /testcase-data failed\n");
of_node_put(np);
+ kfree(name);
/* Test if trailing '/' works */
np = of_find_node_by_path("/testcase-data/");
unittest(!np, "trailing '/' on /testcase-data/ should fail\n");
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
- unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
+ name = kasprintf(GFP_KERNEL, "%pOF", np);
+ unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name),
"find /testcase-data/phandle-tests/consumer-a failed\n");
of_node_put(np);
+ kfree(name);
np = of_find_node_by_path("testcase-alias");
- unittest(np && !strcmp("/testcase-data", np->full_name),
+ name = kasprintf(GFP_KERNEL, "%pOF", np);
+ unittest(np && !strcmp("/testcase-data", name),
"find testcase-alias failed\n");
of_node_put(np);
+ kfree(name);
/* Test if trailing '/' works on aliases */
np = of_find_node_by_path("testcase-alias/");
unittest(!np, "trailing '/' on testcase-alias/ should fail\n");
np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
- unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
+ name = kasprintf(GFP_KERNEL, "%pOF", np);
+ unittest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", name),
"find testcase-alias/phandle-tests/consumer-a failed\n");
of_node_put(np);
+ kfree(name);
np = of_find_node_by_path("/testcase-data/missing-path");
- unittest(!np, "non-existent path returned node %s\n", np->full_name);
+ unittest(!np, "non-existent path returned node %pOF\n", np);
of_node_put(np);
np = of_find_node_by_path("missing-alias");
- unittest(!np, "non-existent alias returned node %s\n", np->full_name);
+ unittest(!np, "non-existent alias returned node %pOF\n", np);
of_node_put(np);
np = of_find_node_by_path("testcase-alias/missing-path");
- unittest(!np, "non-existent alias with relative path returned node %s\n", np->full_name);
+ unittest(!np, "non-existent alias with relative path returned node %pOF\n", np);
of_node_put(np);
np = of_find_node_opts_by_path("/testcase-data:testoption", &options);
@@ -315,8 +323,8 @@ static void __init of_unittest_check_phandles(void)
hash_for_each_possible(phandle_ht, nh, node, np->phandle) {
if (nh->np->phandle == np->phandle) {
- pr_info("Duplicate phandle! %i used by %s and %s\n",
- np->phandle, nh->np->full_name, np->full_name);
+ pr_info("Duplicate phandle! %i used by %pOF and %pOF\n",
+ np->phandle, nh->np, np);
dup_count++;
break;
}
@@ -406,8 +414,8 @@ static void __init of_unittest_parse_phandle_with_args(void)
passed = false;
}
- unittest(passed, "index %i - data error on node %s rc=%i\n",
- i, args.np->full_name, rc);
+ unittest(passed, "index %i - data error on node %pOF rc=%i\n",
+ i, args.np, rc);
}
/* Check for missing list property */
@@ -590,7 +598,7 @@ static void __init of_unittest_changeset(void)
/* Make sure node names are constructed correctly */
unittest((np = of_find_node_by_path("/testcase-data/changeset/n2/n21")),
- "'%s' not added\n", n21->full_name);
+ "'%pOF' not added\n", n21);
of_node_put(np);
unittest(!of_changeset_revert(&chgset), "revert failed\n");
@@ -621,8 +629,8 @@ static void __init of_unittest_parse_interrupts(void)
passed &= (args.args_count == 1);
passed &= (args.args[0] == (i + 1));
- unittest(passed, "index %i - data error on node %s rc=%i\n",
- i, args.np->full_name, rc);
+ unittest(passed, "index %i - data error on node %pOF rc=%i\n",
+ i, args.np, rc);
}
of_node_put(np);
@@ -667,8 +675,8 @@ static void __init of_unittest_parse_interrupts(void)
default:
passed = false;
}
- unittest(passed, "index %i - data error on node %s rc=%i\n",
- i, args.np->full_name, rc);
+ unittest(passed, "index %i - data error on node %pOF rc=%i\n",
+ i, args.np, rc);
}
of_node_put(np);
}
@@ -737,8 +745,8 @@ static void __init of_unittest_parse_interrupts_extended(void)
passed = false;
}
- unittest(passed, "index %i - data error on node %s rc=%i\n",
- i, args.np->full_name, rc);
+ unittest(passed, "index %i - data error on node %pOF rc=%i\n",
+ i, args.np, rc);
}
of_node_put(np);
}
@@ -917,8 +925,11 @@ static int attach_node_and_children(struct device_node *np)
{
struct device_node *next, *dup, *child;
unsigned long flags;
+ const char *full_name;
- dup = of_find_node_by_path(np->full_name);
+ full_name = kasprintf(GFP_KERNEL, "%pOF", np);
+ dup = of_find_node_by_path(full_name);
+ kfree(full_name);
if (dup) {
update_node_properties(np, dup);
return 0;
@@ -1023,7 +1034,7 @@ static int unittest_probe(struct platform_device *pdev)
}
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
of_platform_populate(np, NULL, NULL, &pdev->dev);
@@ -1035,7 +1046,7 @@ static int unittest_remove(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
return 0;
}
@@ -1649,7 +1660,7 @@ static int unittest_i2c_bus_probe(struct platform_device *pdev)
}
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
std = devm_kzalloc(dev, sizeof(*std), GFP_KERNEL);
if (!std) {
@@ -1687,7 +1698,7 @@ static int unittest_i2c_bus_remove(struct platform_device *pdev)
struct device_node *np = dev->of_node;
struct unittest_i2c_bus_data *std = platform_get_drvdata(pdev);
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
i2c_del_adapter(&std->adap);
return 0;
@@ -1718,7 +1729,7 @@ static int unittest_i2c_dev_probe(struct i2c_client *client,
return -EINVAL;
}
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
return 0;
};
@@ -1728,7 +1739,7 @@ static int unittest_i2c_dev_remove(struct i2c_client *client)
struct device *dev = &client->dev;
struct device_node *np = client->dev.of_node;
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
return 0;
}
@@ -1763,7 +1774,7 @@ static int unittest_i2c_mux_probe(struct i2c_client *client,
struct i2c_mux_core *muxc;
u32 reg, max_reg;
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
if (!np) {
dev_err(dev, "No OF node\n");
@@ -1808,7 +1819,7 @@ static int unittest_i2c_mux_remove(struct i2c_client *client)
struct device_node *np = client->dev.of_node;
struct i2c_mux_core *muxc = i2c_get_clientdata(client);
- dev_dbg(dev, "%s for node @%s\n", __func__, np->full_name);
+ dev_dbg(dev, "%s for node @%pOF\n", __func__, np);
i2c_mux_del_adapters(muxc);
return 0;
}
@@ -1983,6 +1994,8 @@ out:
static inline void __init of_unittest_overlay(void) { }
#endif
+#ifdef CONFIG_OF_OVERLAY
+
/*
* __dtb_ot_begin[] and __dtb_ot_end[] are created by cmd_dt_S_dtb
* in scripts/Makefile.lib
@@ -2010,14 +2023,14 @@ struct overlay_info {
OVERLAY_INFO_EXTERN(overlay_base);
OVERLAY_INFO_EXTERN(overlay);
OVERLAY_INFO_EXTERN(overlay_bad_phandle);
-
-#ifdef CONFIG_OF_OVERLAY
+OVERLAY_INFO_EXTERN(overlay_bad_symbol);
/* order of entries is hard-coded into users of overlays[] */
static struct overlay_info overlays[] = {
OVERLAY_INFO(overlay_base, -9999),
OVERLAY_INFO(overlay, 0),
OVERLAY_INFO(overlay_bad_phandle, -EINVAL),
+ OVERLAY_INFO(overlay_bad_symbol, -EINVAL),
{}
};
@@ -2289,6 +2302,10 @@ static __init void of_unittest_overlay_high_level(void)
unittest(overlay_data_add(2),
"Adding overlay 'overlay_bad_phandle' failed\n");
+
+ unittest(overlay_data_add(3),
+ "Adding overlay 'overlay_bad_symbol' failed\n");
+
return;
err_unlock:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 11:45:07 +0100