From 9a96f55034e41b4e002b767e9218d55f03bdff7d Mon Sep 17 00:00:00 2001 From: Aishwarya Pant Date: Tue, 26 Sep 2017 13:58:49 +0530 Subject: drm: introduce drm_dev_{get/put} functions Reference counting functions in the kernel typically use get/put suffixes. For maintaining coding style consistency, introduce drm_dev_{get/put} functions. All callers of drm_dev_ref() API have been converted in this patch and hence it has been dropped while the drm_dev_unref() API with non-trivial number of users remains for compatibility. The semantic patch scripts/coccinelle/api/drm-get-put.cocci has been updated with the new helper for conversion of drm_dev_unref() to drm_dev_put() Signed-off-by: Aishwarya Pant Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/6babda56134035a98220d5d37a4fd4048df214ce.1506413698.git.aishpant@gmail.com --- scripts/coccinelle/api/drm-get-put.cocci | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'scripts') diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci index 0c7a9265c07e..dc10dee356c2 100644 --- a/scripts/coccinelle/api/drm-get-put.cocci +++ b/scripts/coccinelle/api/drm-get-put.cocci @@ -50,6 +50,9 @@ expression object; | - drm_property_unreference_blob(object) + drm_property_blob_put(object) +| +- drm_dev_unref(object) ++ drm_dev_put(object) ) @r depends on report@ @@ -81,6 +84,8 @@ drm_gem_object_unreference_unlocked(object) drm_property_unreference_blob@p(object) | drm_property_reference_blob@p(object) +| +drm_dev_unref@p(object) ) @script:python depends on report@ -- cgit v1.2.3 From 5cb5c31cdf246099f7d48a57f448b05b7941cd6a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 19 Sep 2017 13:08:13 +0200 Subject: scripts/kernel-doc: warn on excess enum value descriptions The existing message "Excess struct/union/enum/typedef member [...]" made it sound like this would already be done, but the code is never invoked for enums or typedefs (and really can't be). Add some code to the enum dumper to handle this there instead. While at it, also make the above message more accurate by simply dumping the type that was passed in, and pass the struct/union differentiation in. Signed-off-by: Johannes Berg Signed-off-by: Jonathan Corbet --- scripts/kernel-doc | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'scripts') diff --git a/scripts/kernel-doc b/scripts/kernel-doc index 9d3eafea58f0..67d051edd615 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -2168,7 +2168,7 @@ sub dump_struct($$) { my $nested; if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) { - #my $decl_type = $1; + my $decl_type = $1; $declaration_name = $2; my $members = $3; @@ -2194,7 +2194,7 @@ sub dump_struct($$) { $members =~ s/DECLARE_HASHTABLE\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[1 << (($2) - 1)\]/gos; create_parameterlist($members, ';', $file); - check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested); + check_sections($file, $declaration_name, $decl_type, $sectcheck, $struct_actual, $nested); output_declaration($declaration_name, 'struct', @@ -2226,6 +2226,8 @@ sub dump_enum($$) { if ($x =~ /enum\s+(\w+)\s*{(.*)}/) { $declaration_name = $1; my $members = $2; + my %_members; + $members =~ s/\s+$//; foreach my $arg (split ',', $members) { @@ -2236,9 +2238,16 @@ sub dump_enum($$) { print STDERR "${file}:$.: warning: Enum value '$arg' ". "not described in enum '$declaration_name'\n"; } - + $_members{$arg} = 1; } + while (my ($k, $v) = each %parameterdescs) { + if (!exists($_members{$k})) { + print STDERR "${file}:$.: warning: Excess enum value " . + "'$k' description in '$declaration_name'\n"; + } + } + output_declaration($declaration_name, 'enum', {'enum' => $declaration_name, @@ -2506,7 +2515,7 @@ sub check_sections($$$$$$) { } else { if ($nested !~ m/\Q$sects[$sx]\E/) { print STDERR "${file}:$.: warning: " . - "Excess struct/union/enum/typedef member " . + "Excess $decl_type member " . "'$sects[$sx]' " . "description in '$decl_name'\n"; ++$warnings; -- cgit v1.2.3 From d1ff70241a275133e1a0258b7c23588b122276c8 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 2 Oct 2017 13:38:34 +0300 Subject: thunderbolt: Add support for XDomain discovery protocol When two hosts are connected over a Thunderbolt cable, there is a protocol they can use to communicate capabilities supported by the host. The discovery protocol uses automatically configured control channel (ring 0) and is build on top of request/response transactions using special XDomain primitives provided by the Thunderbolt base protocol. The capabilities consists of a root directory block of basic properties used for identification of the host, and then there can be zero or more directories each describing a Thunderbolt service and its capabilities. Once both sides have discovered what is supported the two hosts can setup high-speed DMA paths and transfer data to the other side using whatever protocol was agreed based on the properties. The software protocol used to communicate which DMA paths to enable is service specific. This patch adds support for the XDomain discovery protocol to the Thunderbolt bus. We model each remote host connection as a Linux XDomain device. For each Thunderbolt service found supported on the XDomain device, we create Linux Thunderbolt service device which Thunderbolt service drivers can then bind to based on the protocol identification information retrieved from the property directory describing the service. This code is based on the work done by Amir Levy and Michael Jamet. Signed-off-by: Michael Jamet Signed-off-by: Mika Westerberg Reviewed-by: Yehezkel Bernat Reviewed-by: Andy Shevchenko Signed-off-by: David S. Miller --- scripts/mod/devicetable-offsets.c | 7 +++++++ scripts/mod/file2alias.c | 25 +++++++++++++++++++++++++ 2 files changed, 32 insertions(+) (limited to 'scripts') diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c index e4d90e50f6fe..57263f2f8f2f 100644 --- a/scripts/mod/devicetable-offsets.c +++ b/scripts/mod/devicetable-offsets.c @@ -206,5 +206,12 @@ int main(void) DEVID_FIELD(fsl_mc_device_id, vendor); DEVID_FIELD(fsl_mc_device_id, obj_type); + DEVID(tb_service_id); + DEVID_FIELD(tb_service_id, match_flags); + DEVID_FIELD(tb_service_id, protocol_key); + DEVID_FIELD(tb_service_id, protocol_id); + DEVID_FIELD(tb_service_id, protocol_version); + DEVID_FIELD(tb_service_id, protocol_revision); + return 0; } diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 29d6699d5a06..6ef6e63f96fd 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1301,6 +1301,31 @@ static int do_fsl_mc_entry(const char *filename, void *symval, } ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id, do_fsl_mc_entry); +/* Looks like: tbsvc:kSpNvNrN */ +static int do_tbsvc_entry(const char *filename, void *symval, char *alias) +{ + DEF_FIELD(symval, tb_service_id, match_flags); + DEF_FIELD_ADDR(symval, tb_service_id, protocol_key); + DEF_FIELD(symval, tb_service_id, protocol_id); + DEF_FIELD(symval, tb_service_id, protocol_version); + DEF_FIELD(symval, tb_service_id, protocol_revision); + + strcpy(alias, "tbsvc:"); + if (match_flags & TBSVC_MATCH_PROTOCOL_KEY) + sprintf(alias + strlen(alias), "k%s", *protocol_key); + else + strcat(alias + strlen(alias), "k*"); + ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id); + ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION, + protocol_version); + ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION, + protocol_revision); + + add_wildcard(alias); + return 1; +} +ADD_TO_DEVTABLE("tbsvc", tb_service_id, do_tbsvc_entry); + /* Does namelen bytes of name exactly match the symbol? */ static bool sym_is(const char *name, unsigned namelen, const char *symbol) { -- cgit v1.2.3 From 4322323058f010274564006d61945187a15b6361 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Sun, 24 Sep 2017 18:27:25 -0500 Subject: scripts/dtc: add fdt_overlay.c and fdt_addresses.c to sync script libfdt has gained some new files. We need to include them in the kernel's copy. Reported-by: Kyle Yan Signed-off-by: Rob Herring --- scripts/dtc/update-dtc-source.sh | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/dtc/update-dtc-source.sh b/scripts/dtc/update-dtc-source.sh index b8ebcc6722d2..f3e5c596050a 100755 --- a/scripts/dtc/update-dtc-source.sh +++ b/scripts/dtc/update-dtc-source.sh @@ -34,7 +34,9 @@ DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c srcpos.h treesource.c util.c util.h version_gen.h Makefile.dtc \ dtc-lexer.l dtc-parser.y" DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h" -LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_empty_tree.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h" +LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_addresses.c fdt_empty_tree.c \ + fdt_overlay.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c \ + fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h" get_last_dtc_version() { git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/' -- cgit v1.2.3 From 4201d057ea91c3d6efd2db65219bc91fae413bc2 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 3 Oct 2017 11:37:04 -0500 Subject: scripts/dtc: Update to upstream version v1.4.5-3-gb1a60033c110 This adds the following commits from upstream: b1a60033c110 tests: Add a test for overlays syntactic sugar 737b2df39cc8 overlay: Add syntactic sugar version of overlays 497432fd2131 checks: Use proper format modifier for size_t 22a65c5331c2 dtc: Bump version to v1.4.5 c575d8059fff Add fdtoverlay to .gitignore b6a6f9490d19 fdtoverlay: Sanity check blob size 8c1eb1526d2d pylibfdt: Use Python2 explicitly ee3d26f6960b checks: add interrupts property check c1e7738988f5 checks: add gpio binding properties check b3bbac02d5e3 checks: add phandle with arg property checks fe50bd1ecc1d fdtget: Split out cell list display into a new function 62d812308d11 README: Add a note about test_tree1.dts 5bed86aee9e8 pylibfdt: Add support for fdt_subnode_offset() 46f31b65b3b3 pylibfdt: Add support for fdt_node_offset_by_phandle() a3ae43723687 pylibfdt: Add support for fdt_parent_offset() a198af80344c pylibfdt: Add support for fdt_get_phandle() b9eba92ea50f tests: Return a failure code when any tests fail 155faf6cc209 pylibfdt: Use local pylibfdt module 50e5cd07f325 pylibfdt: Add a test for use of uint32_t ab78860f09f5 pylibfdt: Add stdint include to fix uint32_t 36f511fb1113 tests: Add stacked overlay tests on fdtoverlay 1bb00655d3e5 fdt: Allow stacked overlays phandle references a33c2247ac8d Introduce fdt_setprop_placeholder() method 0016f8c2aa32 dtc: change default phandles to ePAPR style instead of both e3b9a9588a35 tests: fdtoverlay unit test 42409146f2db fdtoverlay: A tool that applies overlays aae22722fc8d manual: Document missing options 13ce6e1c2fc4 dtc: fix sprintf() format string error, again d990b8013889 Makefile: Fix build on MSYS2 and Cygwin 51f56dedf8ea Clean up shared library compile/link options 21a2bc896e3d Suppress expected error message in fdtdump test 2a42b14d0d03 dtc: check.c fix compile error a10cb3c818d3 Fix get_node_by_path string equality check 548aea2c436a fdtdump: Discourage use of fdtdump c2258841a785 fdtdump: Fix over-zealous version check 9067ee4be0e6 Fix a few whitespace and style nits e56f2b07be38 pylibfdt: Use setup.py to build the swig file 896f1c133265 pylibfdt: Use Makefile constructs to implement NO_PYTHON 90db6d9989ca pylibfdt: Allow setup.py to operate stand-alone e20d9658cd8f Add Coverity Scan support b04a2cf08862 pylibfdt: Fix code style in setup.py 1c5170d3a466 pylibfdt: Rename libfdt.swig to libfdt.i 580a9f6c2880 Add a libfdt function to write a property placeholder ab15256d8d02 pylibfdt: Use the call function to simplify the Makefile 9f2e3a3a1f19 pylibfdt: Use the correct libfdt version in the module e91c652af215 pylibfdt: Enable installation of Python module 8a892fd85d94 pylibfdt: Allow building to be disabled 741cdff85d3e .travis.yml: Add builds with and without Python library prerequisites 14c4171f4f9a pylibfdt: Use package_dir to set the package directory 89a5062ab231 pylibfdt: Use environment to pass C flags and files 4e0e0d049757 pylibfdt: Allow pkg-config to be supplied in the environment 6afd7d9688f5 Correct typo: s/pylibgfdt/pylibfdt/ Signed-off-by: Rob Herring --- scripts/dtc/checks.c | 282 +++++++++++- scripts/dtc/dtc-lexer.lex.c_shipped | 10 +- scripts/dtc/dtc-parser.tab.c_shipped | 430 ++++++++--------- scripts/dtc/dtc-parser.y | 20 +- scripts/dtc/dtc.c | 2 +- scripts/dtc/dtc.h | 3 + scripts/dtc/libfdt/fdt_addresses.c | 96 ++++ scripts/dtc/libfdt/fdt_empty_tree.c | 1 - scripts/dtc/libfdt/fdt_overlay.c | 861 +++++++++++++++++++++++++++++++++++ scripts/dtc/libfdt/fdt_ro.c | 4 +- scripts/dtc/libfdt/fdt_rw.c | 24 +- scripts/dtc/libfdt/fdt_sw.c | 16 +- scripts/dtc/libfdt/fdt_wip.c | 4 +- scripts/dtc/libfdt/libfdt.h | 47 ++ scripts/dtc/livetree.c | 31 +- scripts/dtc/version_gen.h | 2 +- 16 files changed, 1603 insertions(+), 230 deletions(-) create mode 100644 scripts/dtc/libfdt/fdt_addresses.c create mode 100644 scripts/dtc/libfdt/fdt_overlay.c (limited to 'scripts') diff --git a/scripts/dtc/checks.c b/scripts/dtc/checks.c index 62ea8f83d4a0..08a3a29edae3 100644 --- a/scripts/dtc/checks.c +++ b/scripts/dtc/checks.c @@ -873,7 +873,7 @@ static void check_simple_bus_reg(struct check *c, struct dt_info *dti, struct no while (size--) reg = (reg << 32) | fdt32_to_cpu(*(cells++)); - snprintf(unit_addr, sizeof(unit_addr), "%llx", (unsigned long long)reg); + snprintf(unit_addr, sizeof(unit_addr), "%"PRIx64, reg); if (!streq(unitname, unit_addr)) FAIL(c, dti, "Node %s simple-bus unit address format error, expected \"%s\"", node->fullpath, unit_addr); @@ -956,6 +956,265 @@ static void check_obsolete_chosen_interrupt_controller(struct check *c, WARNING(obsolete_chosen_interrupt_controller, check_obsolete_chosen_interrupt_controller, NULL); +struct provider { + const char *prop_name; + const char *cell_name; + bool optional; +}; + +static void check_property_phandle_args(struct check *c, + struct dt_info *dti, + struct node *node, + struct property *prop, + const struct provider *provider) +{ + struct node *root = dti->dt; + int cell, cellsize = 0; + + if (prop->val.len % sizeof(cell_t)) { + FAIL(c, dti, "property '%s' size (%d) is invalid, expected multiple of %zu in node %s", + prop->name, prop->val.len, sizeof(cell_t), node->fullpath); + return; + } + + for (cell = 0; cell < prop->val.len / sizeof(cell_t); cell += cellsize + 1) { + struct node *provider_node; + struct property *cellprop; + int phandle; + + phandle = propval_cell_n(prop, cell); + /* + * Some bindings use a cell value 0 or -1 to skip over optional + * entries when each index position has a specific definition. + */ + if (phandle == 0 || phandle == -1) { + cellsize = 0; + continue; + } + + /* If we have markers, verify the current cell is a phandle */ + if (prop->val.markers) { + struct marker *m = prop->val.markers; + for_each_marker_of_type(m, REF_PHANDLE) { + if (m->offset == (cell * sizeof(cell_t))) + break; + } + if (!m) + FAIL(c, dti, "Property '%s', cell %d is not a phandle reference in %s", + prop->name, cell, node->fullpath); + } + + provider_node = get_node_by_phandle(root, phandle); + if (!provider_node) { + FAIL(c, dti, "Could not get phandle node for %s:%s(cell %d)", + node->fullpath, prop->name, cell); + break; + } + + cellprop = get_property(provider_node, provider->cell_name); + if (cellprop) { + cellsize = propval_cell(cellprop); + } else if (provider->optional) { + cellsize = 0; + } else { + FAIL(c, dti, "Missing property '%s' in node %s or bad phandle (referred from %s:%s[%d])", + provider->cell_name, + provider_node->fullpath, + node->fullpath, prop->name, cell); + break; + } + + if (prop->val.len < ((cell + cellsize + 1) * sizeof(cell_t))) { + FAIL(c, dti, "%s property size (%d) too small for cell size %d in %s", + prop->name, prop->val.len, cellsize, node->fullpath); + } + } +} + +static void check_provider_cells_property(struct check *c, + struct dt_info *dti, + struct node *node) +{ + struct provider *provider = c->data; + struct property *prop; + + prop = get_property(node, provider->prop_name); + if (!prop) + return; + + check_property_phandle_args(c, dti, node, prop, provider); +} +#define WARNING_PROPERTY_PHANDLE_CELLS(nm, propname, cells_name, ...) \ + static struct provider nm##_provider = { (propname), (cells_name), __VA_ARGS__ }; \ + WARNING(nm##_property, check_provider_cells_property, &nm##_provider, &phandle_references); + +WARNING_PROPERTY_PHANDLE_CELLS(clocks, "clocks", "#clock-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(cooling_device, "cooling-device", "#cooling-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(dmas, "dmas", "#dma-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(hwlocks, "hwlocks", "#hwlock-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(interrupts_extended, "interrupts-extended", "#interrupt-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(io_channels, "io-channels", "#io-channel-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(iommus, "iommus", "#iommu-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(mboxes, "mboxes", "#mbox-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(msi_parent, "msi-parent", "#msi-cells", true); +WARNING_PROPERTY_PHANDLE_CELLS(mux_controls, "mux-controls", "#mux-control-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(phys, "phys", "#phy-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(power_domains, "power-domains", "#power-domain-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(pwms, "pwms", "#pwm-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(resets, "resets", "#reset-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(sound_dais, "sound-dais", "#sound-dai-cells"); +WARNING_PROPERTY_PHANDLE_CELLS(thermal_sensors, "thermal-sensors", "#thermal-sensor-cells"); + +static bool prop_is_gpio(struct property *prop) +{ + char *str; + + /* + * *-gpios and *-gpio can appear in property names, + * so skip over any false matches (only one known ATM) + */ + if (strstr(prop->name, "nr-gpio")) + return false; + + str = strrchr(prop->name, '-'); + if (str) + str++; + else + str = prop->name; + if (!(streq(str, "gpios") || streq(str, "gpio"))) + return false; + + return true; +} + +static void check_gpios_property(struct check *c, + struct dt_info *dti, + struct node *node) +{ + struct property *prop; + + /* Skip GPIO hog nodes which have 'gpios' property */ + if (get_property(node, "gpio-hog")) + return; + + for_each_property(node, prop) { + struct provider provider; + + if (!prop_is_gpio(prop)) + continue; + + provider.prop_name = prop->name; + provider.cell_name = "#gpio-cells"; + provider.optional = false; + check_property_phandle_args(c, dti, node, prop, &provider); + } + +} +WARNING(gpios_property, check_gpios_property, NULL, &phandle_references); + +static void check_deprecated_gpio_property(struct check *c, + struct dt_info *dti, + struct node *node) +{ + struct property *prop; + + for_each_property(node, prop) { + char *str; + + if (!prop_is_gpio(prop)) + continue; + + str = strstr(prop->name, "gpio"); + if (!streq(str, "gpio")) + continue; + + FAIL(c, dti, "'[*-]gpio' is deprecated, use '[*-]gpios' instead for %s:%s", + node->fullpath, prop->name); + } + +} +CHECK(deprecated_gpio_property, check_deprecated_gpio_property, NULL); + +static bool node_is_interrupt_provider(struct node *node) +{ + struct property *prop; + + prop = get_property(node, "interrupt-controller"); + if (prop) + return true; + + prop = get_property(node, "interrupt-map"); + if (prop) + return true; + + return false; +} +static void check_interrupts_property(struct check *c, + struct dt_info *dti, + struct node *node) +{ + struct node *root = dti->dt; + struct node *irq_node = NULL, *parent = node; + struct property *irq_prop, *prop = NULL; + int irq_cells, phandle; + + irq_prop = get_property(node, "interrupts"); + if (!irq_prop) + return; + + if (irq_prop->val.len % sizeof(cell_t)) + FAIL(c, dti, "property '%s' size (%d) is invalid, expected multiple of %zu in node %s", + irq_prop->name, irq_prop->val.len, sizeof(cell_t), + node->fullpath); + + while (parent && !prop) { + if (parent != node && node_is_interrupt_provider(parent)) { + irq_node = parent; + break; + } + + prop = get_property(parent, "interrupt-parent"); + if (prop) { + phandle = propval_cell(prop); + irq_node = get_node_by_phandle(root, phandle); + if (!irq_node) { + FAIL(c, dti, "Bad interrupt-parent phandle for %s", + node->fullpath); + return; + } + if (!node_is_interrupt_provider(irq_node)) + FAIL(c, dti, + "Missing interrupt-controller or interrupt-map property in %s", + irq_node->fullpath); + + break; + } + + parent = parent->parent; + } + + if (!irq_node) { + FAIL(c, dti, "Missing interrupt-parent for %s", node->fullpath); + return; + } + + prop = get_property(irq_node, "#interrupt-cells"); + if (!prop) { + FAIL(c, dti, "Missing #interrupt-cells in interrupt-parent %s", + irq_node->fullpath); + return; + } + + irq_cells = propval_cell(prop); + if (irq_prop->val.len % (irq_cells * sizeof(cell_t))) { + FAIL(c, dti, + "interrupts size is (%d), expected multiple of %d in %s", + irq_prop->val.len, (int)(irq_cells * sizeof(cell_t)), + node->fullpath); + } +} +WARNING(interrupts_property, check_interrupts_property, &phandle_references); + static struct check *check_table[] = { &duplicate_node_names, &duplicate_property_names, &node_name_chars, &node_name_format, &property_name_chars, @@ -987,6 +1246,27 @@ static struct check *check_table[] = { &avoid_default_addr_size, &obsolete_chosen_interrupt_controller, + &clocks_property, + &cooling_device_property, + &dmas_property, + &hwlocks_property, + &interrupts_extended_property, + &io_channels_property, + &iommus_property, + &mboxes_property, + &msi_parent_property, + &mux_controls_property, + &phys_property, + &power_domains_property, + &pwms_property, + &resets_property, + &sound_dais_property, + &thermal_sensors_property, + + &deprecated_gpio_property, + &gpios_property, + &interrupts_property, + &always_fail, }; diff --git a/scripts/dtc/dtc-lexer.lex.c_shipped b/scripts/dtc/dtc-lexer.lex.c_shipped index 64c243772398..011bb9632ff2 100644 --- a/scripts/dtc/dtc-lexer.lex.c_shipped +++ b/scripts/dtc/dtc-lexer.lex.c_shipped @@ -1397,7 +1397,7 @@ static int yy_get_next_buffer (void) { char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; char *source = (yytext_ptr); - yy_size_t number_to_move, i; + int number_to_move, i; int ret_val; if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) @@ -1426,7 +1426,7 @@ static int yy_get_next_buffer (void) /* Try to read more data. */ /* First move last chars to start of buffer. */ - number_to_move = (yy_size_t) ((yy_c_buf_p) - (yytext_ptr)) - 1; + number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1); for ( i = 0; i < number_to_move; ++i ) *(dest++) = *(source++); @@ -1508,7 +1508,7 @@ static int yy_get_next_buffer (void) else ret_val = EOB_ACT_CONTINUE_SCAN; - if ((int) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + if (((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { /* Extend the array by 50%, plus the number we really need. */ int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ); @@ -1987,10 +1987,10 @@ YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, int _yybytes_len ) YY_BUFFER_STATE b; char *buf; yy_size_t n; - yy_size_t i; + int i; /* Get memory for full buffer, including space for trailing EOB's. */ - n = (yy_size_t) _yybytes_len + 2; + n = (yy_size_t) (_yybytes_len + 2); buf = (char *) yyalloc(n ); if ( ! buf ) YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); diff --git a/scripts/dtc/dtc-parser.tab.c_shipped b/scripts/dtc/dtc-parser.tab.c_shipped index 0a7a5ed86f04..aea514fa6928 100644 --- a/scripts/dtc/dtc-parser.tab.c_shipped +++ b/scripts/dtc/dtc-parser.tab.c_shipped @@ -448,7 +448,7 @@ union yyalloc /* YYNNTS -- Number of nonterminals. */ #define YYNNTS 30 /* YYNRULES -- Number of rules. */ -#define YYNRULES 84 +#define YYNRULES 85 /* YYNSTATES -- Number of states. */ #define YYNSTATES 149 @@ -499,14 +499,14 @@ static const yytype_uint8 yytranslate[] = static const yytype_uint16 yyrline[] = { 0, 109, 109, 117, 121, 128, 129, 139, 142, 149, - 153, 161, 165, 170, 181, 191, 206, 214, 217, 224, - 228, 232, 236, 244, 248, 252, 256, 260, 276, 286, - 294, 297, 301, 308, 324, 329, 348, 362, 369, 370, - 371, 378, 382, 383, 387, 388, 392, 393, 397, 398, - 402, 403, 407, 408, 412, 413, 414, 418, 419, 420, - 421, 422, 426, 427, 428, 432, 433, 434, 438, 439, - 448, 457, 461, 462, 463, 464, 469, 472, 476, 484, - 487, 491, 499, 503, 507 + 153, 161, 165, 170, 181, 200, 213, 220, 228, 231, + 238, 242, 246, 250, 258, 262, 266, 270, 274, 290, + 300, 308, 311, 315, 322, 338, 343, 362, 376, 383, + 384, 385, 392, 396, 397, 401, 402, 406, 407, 411, + 412, 416, 417, 421, 422, 426, 427, 428, 432, 433, + 434, 435, 436, 440, 441, 442, 446, 447, 448, 452, + 453, 462, 471, 475, 476, 477, 478, 483, 486, 490, + 498, 501, 505, 513, 517, 521 }; #endif @@ -582,20 +582,20 @@ static const yytype_int8 yypact[] = static const yytype_uint8 yydefact[] = { 0, 0, 0, 5, 7, 3, 1, 6, 0, 0, - 0, 7, 0, 38, 39, 0, 0, 10, 0, 2, - 8, 4, 0, 0, 0, 72, 0, 41, 42, 44, - 46, 48, 50, 52, 54, 57, 64, 67, 71, 0, - 17, 11, 0, 0, 0, 0, 73, 74, 75, 40, + 16, 7, 0, 39, 40, 0, 0, 10, 0, 2, + 8, 4, 0, 0, 0, 73, 0, 42, 43, 45, + 47, 49, 51, 53, 55, 58, 65, 68, 72, 0, + 18, 11, 0, 0, 0, 0, 74, 75, 76, 41, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, - 79, 0, 0, 14, 12, 45, 0, 47, 49, 51, - 53, 55, 56, 60, 61, 59, 58, 62, 63, 65, - 66, 69, 68, 70, 0, 0, 0, 0, 18, 0, - 79, 15, 13, 0, 0, 0, 20, 30, 82, 22, - 84, 0, 81, 80, 43, 21, 83, 0, 0, 16, - 29, 19, 31, 0, 23, 32, 26, 0, 76, 34, - 0, 0, 0, 0, 37, 36, 24, 35, 33, 0, - 77, 78, 25, 0, 28, 0, 0, 0, 27 + 80, 0, 0, 14, 12, 46, 0, 48, 50, 52, + 54, 56, 57, 61, 62, 60, 59, 63, 64, 66, + 67, 70, 69, 71, 0, 0, 0, 0, 19, 0, + 80, 15, 13, 0, 0, 0, 21, 31, 83, 23, + 85, 0, 82, 81, 44, 22, 84, 0, 0, 17, + 30, 20, 32, 0, 24, 33, 27, 0, 77, 35, + 0, 0, 0, 0, 38, 37, 25, 36, 34, 0, + 78, 79, 26, 0, 29, 0, 0, 0, 28 }; /* YYPGOTO[NTERM-NUM]. */ @@ -678,28 +678,28 @@ static const yytype_uint8 yystos[] = static const yytype_uint8 yyr1[] = { 0, 48, 49, 50, 50, 51, 51, 52, 52, 53, - 53, 54, 54, 54, 54, 54, 55, 56, 56, 57, - 57, 57, 57, 58, 58, 58, 58, 58, 58, 58, - 59, 59, 59, 60, 60, 60, 60, 60, 61, 61, - 61, 62, 63, 63, 64, 64, 65, 65, 66, 66, - 67, 67, 68, 68, 69, 69, 69, 70, 70, 70, - 70, 70, 71, 71, 71, 72, 72, 72, 73, 73, - 73, 73, 74, 74, 74, 74, 75, 75, 75, 76, - 76, 76, 77, 77, 77 + 53, 54, 54, 54, 54, 54, 54, 55, 56, 56, + 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, + 58, 59, 59, 59, 60, 60, 60, 60, 60, 61, + 61, 61, 62, 63, 63, 64, 64, 65, 65, 66, + 66, 67, 67, 68, 68, 69, 69, 69, 70, 70, + 70, 70, 70, 71, 71, 71, 72, 72, 72, 73, + 73, 73, 73, 74, 74, 74, 74, 75, 75, 75, + 76, 76, 76, 77, 77, 77 }; /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN. */ static const yytype_uint8 yyr2[] = { 0, 2, 3, 2, 4, 1, 2, 0, 2, 4, - 2, 2, 3, 4, 3, 4, 5, 0, 2, 4, - 2, 3, 2, 2, 3, 4, 2, 9, 5, 2, - 0, 2, 2, 3, 1, 2, 2, 2, 1, 1, - 3, 1, 1, 5, 1, 3, 1, 3, 1, 3, - 1, 3, 1, 3, 1, 3, 3, 1, 3, 3, - 3, 3, 3, 3, 1, 3, 3, 1, 3, 3, - 3, 1, 1, 2, 2, 2, 0, 2, 2, 0, - 2, 2, 2, 3, 2 + 2, 2, 3, 4, 3, 4, 0, 5, 0, 2, + 4, 2, 3, 2, 2, 3, 4, 2, 9, 5, + 2, 0, 2, 2, 3, 1, 2, 2, 2, 1, + 1, 3, 1, 1, 5, 1, 3, 1, 3, 1, + 3, 1, 3, 1, 3, 1, 3, 3, 1, 3, + 3, 3, 3, 3, 3, 1, 3, 3, 1, 3, + 3, 3, 1, 1, 2, 2, 2, 0, 2, 2, + 0, 2, 2, 2, 3, 2 }; @@ -1572,17 +1572,26 @@ yyreduce: { struct node *target = get_node_by_ref((yyvsp[-2].node), (yyvsp[-1].labelref)); - if (target) + if (target) { merge_nodes(target, (yyvsp[0].node)); - else - ERROR(&(yylsp[-1]), "Label or path %s not found", (yyvsp[-1].labelref)); + } else { + /* + * We rely on the rule being always: + * versioninfo plugindecl memreserves devicetree + * so $-1 is what we want (plugindecl) + */ + if ((yyvsp[(-1) - (3)].flags) & DTSF_PLUGIN) + add_orphan_node((yyvsp[-2].node), (yyvsp[0].node), (yyvsp[-1].labelref)); + else + ERROR(&(yylsp[-1]), "Label or path %s not found", (yyvsp[-1].labelref)); + } (yyval.node) = (yyvsp[-2].node); } -#line 1582 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1591 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 15: -#line 192 "dtc-parser.y" /* yacc.c:1646 */ +#line 201 "dtc-parser.y" /* yacc.c:1646 */ { struct node *target = get_node_by_ref((yyvsp[-3].node), (yyvsp[-1].labelref)); @@ -1594,100 +1603,109 @@ yyreduce: (yyval.node) = (yyvsp[-3].node); } -#line 1598 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1607 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 16: -#line 207 "dtc-parser.y" /* yacc.c:1646 */ +#line 213 "dtc-parser.y" /* yacc.c:1646 */ { - (yyval.node) = build_node((yyvsp[-3].proplist), (yyvsp[-2].nodelist)); + /* build empty node */ + (yyval.node) = name_node(build_node(NULL, NULL), ""); } -#line 1606 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1616 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 17: -#line 214 "dtc-parser.y" /* yacc.c:1646 */ +#line 221 "dtc-parser.y" /* yacc.c:1646 */ { - (yyval.proplist) = NULL; + (yyval.node) = build_node((yyvsp[-3].proplist), (yyvsp[-2].nodelist)); } -#line 1614 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1624 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 18: -#line 218 "dtc-parser.y" /* yacc.c:1646 */ +#line 228 "dtc-parser.y" /* yacc.c:1646 */ { - (yyval.proplist) = chain_property((yyvsp[0].prop), (yyvsp[-1].proplist)); + (yyval.proplist) = NULL; } -#line 1622 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1632 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 19: -#line 225 "dtc-parser.y" /* yacc.c:1646 */ +#line 232 "dtc-parser.y" /* yacc.c:1646 */ { - (yyval.prop) = build_property((yyvsp[-3].propnodename), (yyvsp[-1].data)); + (yyval.proplist) = chain_property((yyvsp[0].prop), (yyvsp[-1].proplist)); } -#line 1630 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1640 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 20: -#line 229 "dtc-parser.y" /* yacc.c:1646 */ +#line 239 "dtc-parser.y" /* yacc.c:1646 */ { - (yyval.prop) = build_property((yyvsp[-1].propnodename), empty_data); + (yyval.prop) = build_property((yyvsp[-3].propnodename), (yyvsp[-1].data)); } -#line 1638 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1648 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 21: -#line 233 "dtc-parser.y" /* yacc.c:1646 */ +#line 243 "dtc-parser.y" /* yacc.c:1646 */ { - (yyval.prop) = build_property_delete((yyvsp[-1].propnodename)); + (yyval.prop) = build_property((yyvsp[-1].propnodename), empty_data); } -#line 1646 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1656 "dtc-parser.tab.c" /* yacc.c:1646 */ break; case 22: -#line 237 "dtc-parser.y" /* yacc.c:1646 */ +#line 247 "dtc-parser.y" /* yacc.c:1646 */ + { + (yyval.prop) = build_property_delete((yyvsp[-1].propnodename)); + } +#line 1664 "dtc-parser.tab.c" /* yacc.c:1646 */ + break; + + case 23: +#line 251 "dtc-parser.y" /* yacc.c:1646 */ { add_label(&(yyvsp[0].prop)->labels, (yyvsp[-1].labelref)); (yyval.prop) = (yyvsp[0].prop); } -#line 1655 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1673 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 23: -#line 245 "dtc-parser.y" /* yacc.c:1646 */ + case 24: +#line 259 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_merge((yyvsp[-1].data), (yyvsp[0].data)); } -#line 1663 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1681 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 24: -#line 249 "dtc-parser.y" /* yacc.c:1646 */ + case 25: +#line 263 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_merge((yyvsp[-2].data), (yyvsp[-1].array).data); } -#line 1671 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1689 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 25: -#line 253 "dtc-parser.y" /* yacc.c:1646 */ + case 26: +#line 267 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_merge((yyvsp[-3].data), (yyvsp[-1].data)); } -#line 1679 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1697 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 26: -#line 257 "dtc-parser.y" /* yacc.c:1646 */ + case 27: +#line 271 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_add_marker((yyvsp[-1].data), REF_PATH, (yyvsp[0].labelref)); } -#line 1687 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1705 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 27: -#line 261 "dtc-parser.y" /* yacc.c:1646 */ + case 28: +#line 275 "dtc-parser.y" /* yacc.c:1646 */ { FILE *f = srcfile_relative_open((yyvsp[-5].data).val, NULL); struct data d; @@ -1703,11 +1721,11 @@ yyreduce: (yyval.data) = data_merge((yyvsp[-8].data), d); fclose(f); } -#line 1707 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1725 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 28: -#line 277 "dtc-parser.y" /* yacc.c:1646 */ + case 29: +#line 291 "dtc-parser.y" /* yacc.c:1646 */ { FILE *f = srcfile_relative_open((yyvsp[-1].data).val, NULL); struct data d = empty_data; @@ -1717,43 +1735,43 @@ yyreduce: (yyval.data) = data_merge((yyvsp[-4].data), d); fclose(f); } -#line 1721 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1739 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 29: -#line 287 "dtc-parser.y" /* yacc.c:1646 */ + case 30: +#line 301 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_add_marker((yyvsp[-1].data), LABEL, (yyvsp[0].labelref)); } -#line 1729 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1747 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 30: -#line 294 "dtc-parser.y" /* yacc.c:1646 */ + case 31: +#line 308 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = empty_data; } -#line 1737 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1755 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 31: -#line 298 "dtc-parser.y" /* yacc.c:1646 */ + case 32: +#line 312 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = (yyvsp[-1].data); } -#line 1745 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1763 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 32: -#line 302 "dtc-parser.y" /* yacc.c:1646 */ + case 33: +#line 316 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_add_marker((yyvsp[-1].data), LABEL, (yyvsp[0].labelref)); } -#line 1753 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1771 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 33: -#line 309 "dtc-parser.y" /* yacc.c:1646 */ + case 34: +#line 323 "dtc-parser.y" /* yacc.c:1646 */ { unsigned long long bits; @@ -1769,20 +1787,20 @@ yyreduce: (yyval.array).data = empty_data; (yyval.array).bits = bits; } -#line 1773 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1791 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 34: -#line 325 "dtc-parser.y" /* yacc.c:1646 */ + case 35: +#line 339 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.array).data = empty_data; (yyval.array).bits = 32; } -#line 1782 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1800 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 35: -#line 330 "dtc-parser.y" /* yacc.c:1646 */ + case 36: +#line 344 "dtc-parser.y" /* yacc.c:1646 */ { if ((yyvsp[-1].array).bits < 64) { uint64_t mask = (1ULL << (yyvsp[-1].array).bits) - 1; @@ -1801,11 +1819,11 @@ yyreduce: (yyval.array).data = data_append_integer((yyvsp[-1].array).data, (yyvsp[0].integer), (yyvsp[-1].array).bits); } -#line 1805 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1823 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 36: -#line 349 "dtc-parser.y" /* yacc.c:1646 */ + case 37: +#line 363 "dtc-parser.y" /* yacc.c:1646 */ { uint64_t val = ~0ULL >> (64 - (yyvsp[-1].array).bits); @@ -1819,129 +1837,129 @@ yyreduce: (yyval.array).data = data_append_integer((yyvsp[-1].array).data, val, (yyvsp[-1].array).bits); } -#line 1823 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1841 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 37: -#line 363 "dtc-parser.y" /* yacc.c:1646 */ + case 38: +#line 377 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.array).data = data_add_marker((yyvsp[-1].array).data, LABEL, (yyvsp[0].labelref)); } -#line 1831 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1849 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 40: -#line 372 "dtc-parser.y" /* yacc.c:1646 */ + case 41: +#line 386 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-1].integer); } -#line 1839 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1857 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 43: -#line 383 "dtc-parser.y" /* yacc.c:1646 */ + case 44: +#line 397 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-4].integer) ? (yyvsp[-2].integer) : (yyvsp[0].integer); } -#line 1845 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1863 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 45: -#line 388 "dtc-parser.y" /* yacc.c:1646 */ + case 46: +#line 402 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) || (yyvsp[0].integer); } -#line 1851 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1869 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 47: -#line 393 "dtc-parser.y" /* yacc.c:1646 */ + case 48: +#line 407 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) && (yyvsp[0].integer); } -#line 1857 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1875 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 49: -#line 398 "dtc-parser.y" /* yacc.c:1646 */ + case 50: +#line 412 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) | (yyvsp[0].integer); } -#line 1863 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1881 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 51: -#line 403 "dtc-parser.y" /* yacc.c:1646 */ + case 52: +#line 417 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) ^ (yyvsp[0].integer); } -#line 1869 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1887 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 53: -#line 408 "dtc-parser.y" /* yacc.c:1646 */ + case 54: +#line 422 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) & (yyvsp[0].integer); } -#line 1875 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1893 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 55: -#line 413 "dtc-parser.y" /* yacc.c:1646 */ + case 56: +#line 427 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) == (yyvsp[0].integer); } -#line 1881 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1899 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 56: -#line 414 "dtc-parser.y" /* yacc.c:1646 */ + case 57: +#line 428 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) != (yyvsp[0].integer); } -#line 1887 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1905 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 58: -#line 419 "dtc-parser.y" /* yacc.c:1646 */ + case 59: +#line 433 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) < (yyvsp[0].integer); } -#line 1893 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1911 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 59: -#line 420 "dtc-parser.y" /* yacc.c:1646 */ + case 60: +#line 434 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) > (yyvsp[0].integer); } -#line 1899 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1917 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 60: -#line 421 "dtc-parser.y" /* yacc.c:1646 */ + case 61: +#line 435 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) <= (yyvsp[0].integer); } -#line 1905 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1923 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 61: -#line 422 "dtc-parser.y" /* yacc.c:1646 */ + case 62: +#line 436 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) >= (yyvsp[0].integer); } -#line 1911 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1929 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 62: -#line 426 "dtc-parser.y" /* yacc.c:1646 */ + case 63: +#line 440 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) << (yyvsp[0].integer); } -#line 1917 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1935 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 63: -#line 427 "dtc-parser.y" /* yacc.c:1646 */ + case 64: +#line 441 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) >> (yyvsp[0].integer); } -#line 1923 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1941 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 65: -#line 432 "dtc-parser.y" /* yacc.c:1646 */ + case 66: +#line 446 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) + (yyvsp[0].integer); } -#line 1929 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1947 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 66: -#line 433 "dtc-parser.y" /* yacc.c:1646 */ + case 67: +#line 447 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) - (yyvsp[0].integer); } -#line 1935 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1953 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 68: -#line 438 "dtc-parser.y" /* yacc.c:1646 */ + case 69: +#line 452 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = (yyvsp[-2].integer) * (yyvsp[0].integer); } -#line 1941 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1959 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 69: -#line 440 "dtc-parser.y" /* yacc.c:1646 */ + case 70: +#line 454 "dtc-parser.y" /* yacc.c:1646 */ { if ((yyvsp[0].integer) != 0) { (yyval.integer) = (yyvsp[-2].integer) / (yyvsp[0].integer); @@ -1950,11 +1968,11 @@ yyreduce: (yyval.integer) = 0; } } -#line 1954 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1972 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 70: -#line 449 "dtc-parser.y" /* yacc.c:1646 */ + case 71: +#line 463 "dtc-parser.y" /* yacc.c:1646 */ { if ((yyvsp[0].integer) != 0) { (yyval.integer) = (yyvsp[-2].integer) % (yyvsp[0].integer); @@ -1963,103 +1981,103 @@ yyreduce: (yyval.integer) = 0; } } -#line 1967 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1985 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 73: -#line 462 "dtc-parser.y" /* yacc.c:1646 */ + case 74: +#line 476 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = -(yyvsp[0].integer); } -#line 1973 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1991 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 74: -#line 463 "dtc-parser.y" /* yacc.c:1646 */ + case 75: +#line 477 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = ~(yyvsp[0].integer); } -#line 1979 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 1997 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 75: -#line 464 "dtc-parser.y" /* yacc.c:1646 */ + case 76: +#line 478 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.integer) = !(yyvsp[0].integer); } -#line 1985 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2003 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 76: -#line 469 "dtc-parser.y" /* yacc.c:1646 */ + case 77: +#line 483 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = empty_data; } -#line 1993 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2011 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 77: -#line 473 "dtc-parser.y" /* yacc.c:1646 */ + case 78: +#line 487 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_append_byte((yyvsp[-1].data), (yyvsp[0].byte)); } -#line 2001 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2019 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 78: -#line 477 "dtc-parser.y" /* yacc.c:1646 */ + case 79: +#line 491 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.data) = data_add_marker((yyvsp[-1].data), LABEL, (yyvsp[0].labelref)); } -#line 2009 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2027 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 79: -#line 484 "dtc-parser.y" /* yacc.c:1646 */ + case 80: +#line 498 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.nodelist) = NULL; } -#line 2017 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2035 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 80: -#line 488 "dtc-parser.y" /* yacc.c:1646 */ + case 81: +#line 502 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.nodelist) = chain_node((yyvsp[-1].node), (yyvsp[0].nodelist)); } -#line 2025 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2043 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 81: -#line 492 "dtc-parser.y" /* yacc.c:1646 */ + case 82: +#line 506 "dtc-parser.y" /* yacc.c:1646 */ { ERROR(&(yylsp[0]), "Properties must precede subnodes"); YYERROR; } -#line 2034 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2052 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 82: -#line 500 "dtc-parser.y" /* yacc.c:1646 */ + case 83: +#line 514 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.node) = name_node((yyvsp[0].node), (yyvsp[-1].propnodename)); } -#line 2042 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2060 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 83: -#line 504 "dtc-parser.y" /* yacc.c:1646 */ + case 84: +#line 518 "dtc-parser.y" /* yacc.c:1646 */ { (yyval.node) = name_node(build_node_delete(), (yyvsp[-1].propnodename)); } -#line 2050 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2068 "dtc-parser.tab.c" /* yacc.c:1646 */ break; - case 84: -#line 508 "dtc-parser.y" /* yacc.c:1646 */ + case 85: +#line 522 "dtc-parser.y" /* yacc.c:1646 */ { add_label(&(yyvsp[0].node)->labels, (yyvsp[-1].labelref)); (yyval.node) = (yyvsp[0].node); } -#line 2059 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2077 "dtc-parser.tab.c" /* yacc.c:1646 */ break; -#line 2063 "dtc-parser.tab.c" /* yacc.c:1646 */ +#line 2081 "dtc-parser.tab.c" /* yacc.c:1646 */ default: break; } /* User semantic actions sometimes alter yychar, and that requires @@ -2294,7 +2312,7 @@ yyreturn: #endif return yyresult; } -#line 514 "dtc-parser.y" /* yacc.c:1906 */ +#line 528 "dtc-parser.y" /* yacc.c:1906 */ void yyerror(char const *s) diff --git a/scripts/dtc/dtc-parser.y b/scripts/dtc/dtc-parser.y index ca3f5003427c..affc81a8f9ab 100644 --- a/scripts/dtc/dtc-parser.y +++ b/scripts/dtc/dtc-parser.y @@ -182,10 +182,19 @@ devicetree: { struct node *target = get_node_by_ref($1, $2); - if (target) + if (target) { merge_nodes(target, $3); - else - ERROR(&@2, "Label or path %s not found", $2); + } else { + /* + * We rely on the rule being always: + * versioninfo plugindecl memreserves devicetree + * so $-1 is what we want (plugindecl) + */ + if ($-1 & DTSF_PLUGIN) + add_orphan_node($1, $3, $2); + else + ERROR(&@2, "Label or path %s not found", $2); + } $$ = $1; } | devicetree DT_DEL_NODE DT_REF ';' @@ -200,6 +209,11 @@ devicetree: $$ = $1; } + | /* empty */ + { + /* build empty node */ + $$ = name_node(build_node(NULL, NULL), ""); + } ; nodedef: diff --git a/scripts/dtc/dtc.c b/scripts/dtc/dtc.c index f5eed9d72c02..5ed873c72ad1 100644 --- a/scripts/dtc/dtc.c +++ b/scripts/dtc/dtc.c @@ -31,7 +31,7 @@ int reservenum; /* Number of memory reservation slots */ int minsize; /* Minimum blob size */ int padsize; /* Additional padding to blob */ int alignsize; /* Additional padding to blob accroding to the alignsize */ -int phandle_format = PHANDLE_BOTH; /* Use linux,phandle or phandle properties */ +int phandle_format = PHANDLE_EPAPR; /* Use linux,phandle or phandle properties */ int generate_symbols; /* enable symbols & fixup support */ int generate_fixups; /* suppress generation of fixups on symbol support */ int auto_label_aliases; /* auto generate labels -> aliases */ diff --git a/scripts/dtc/dtc.h b/scripts/dtc/dtc.h index fc24e17510fd..35cf926cc14a 100644 --- a/scripts/dtc/dtc.h +++ b/scripts/dtc/dtc.h @@ -31,6 +31,7 @@ #include #include #include +#include #include #include @@ -202,6 +203,7 @@ struct node *build_node_delete(void); struct node *name_node(struct node *node, char *name); struct node *chain_node(struct node *first, struct node *list); struct node *merge_nodes(struct node *old_node, struct node *new_node); +void add_orphan_node(struct node *old_node, struct node *new_node, char *ref); void add_property(struct node *node, struct property *prop); void delete_property_by_name(struct node *node, char *name); @@ -215,6 +217,7 @@ void append_to_property(struct node *node, const char *get_unitname(struct node *node); struct property *get_property(struct node *node, const char *propname); cell_t propval_cell(struct property *prop); +cell_t propval_cell_n(struct property *prop, int n); struct property *get_property_by_label(struct node *tree, const char *label, struct node **node); struct marker *get_marker_label(struct node *tree, const char *label, diff --git a/scripts/dtc/libfdt/fdt_addresses.c b/scripts/dtc/libfdt/fdt_addresses.c new file mode 100644 index 000000000000..eff4dbcc729d --- /dev/null +++ b/scripts/dtc/libfdt/fdt_addresses.c @@ -0,0 +1,96 @@ +/* + * libfdt - Flat Device Tree manipulation + * Copyright (C) 2014 David Gibson + * + * libfdt is dual licensed: you can use it either under the terms of + * the GPL, or the BSD license, at your option. + * + * a) This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + * + * Alternatively, + * + * b) Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * 1. Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * 2. Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include "libfdt_env.h" + +#include +#include + +#include "libfdt_internal.h" + +int fdt_address_cells(const void *fdt, int nodeoffset) +{ + const fdt32_t *ac; + int val; + int len; + + ac = fdt_getprop(fdt, nodeoffset, "#address-cells", &len); + if (!ac) + return 2; + + if (len != sizeof(*ac)) + return -FDT_ERR_BADNCELLS; + + val = fdt32_to_cpu(*ac); + if ((val <= 0) || (val > FDT_MAX_NCELLS)) + return -FDT_ERR_BADNCELLS; + + return val; +} + +int fdt_size_cells(const void *fdt, int nodeoffset) +{ + const fdt32_t *sc; + int val; + int len; + + sc = fdt_getprop(fdt, nodeoffset, "#size-cells", &len); + if (!sc) + return 2; + + if (len != sizeof(*sc)) + return -FDT_ERR_BADNCELLS; + + val = fdt32_to_cpu(*sc); + if ((val < 0) || (val > FDT_MAX_NCELLS)) + return -FDT_ERR_BADNCELLS; + + return val; +} diff --git a/scripts/dtc/libfdt/fdt_empty_tree.c b/scripts/dtc/libfdt/fdt_empty_tree.c index f72d13b1d19c..f2ae9b77c285 100644 --- a/scripts/dtc/libfdt/fdt_empty_tree.c +++ b/scripts/dtc/libfdt/fdt_empty_tree.c @@ -81,4 +81,3 @@ int fdt_create_empty_tree(void *buf, int bufsize) return fdt_open_into(buf, buf, bufsize); } - diff --git a/scripts/dtc/libfdt/fdt_overlay.c b/scripts/dtc/libfdt/fdt_overlay.c new file mode 100644 index 000000000000..bd81241e6658 --- /dev/null +++ b/scripts/dtc/libfdt/fdt_overlay.c @@ -0,0 +1,861 @@ +#include "libfdt_env.h" + +#include +#include + +#include "libfdt_internal.h" + +/** + * overlay_get_target_phandle - retrieves the target phandle of a fragment + * @fdto: pointer to the device tree overlay blob + * @fragment: node offset of the fragment in the overlay + * + * overlay_get_target_phandle() retrieves the target phandle of an + * overlay fragment when that fragment uses a phandle (target + * property) instead of a path (target-path property). + * + * returns: + * the phandle pointed by the target property + * 0, if the phandle was not found + * -1, if the phandle was malformed + */ +static uint32_t overlay_get_target_phandle(const void *fdto, int fragment) +{ + const fdt32_t *val; + int len; + + val = fdt_getprop(fdto, fragment, "target", &len); + if (!val) + return 0; + + if ((len != sizeof(*val)) || (fdt32_to_cpu(*val) == (uint32_t)-1)) + return (uint32_t)-1; + + return fdt32_to_cpu(*val); +} + +/** + * overlay_get_target - retrieves the offset of a fragment's target + * @fdt: Base device tree blob + * @fdto: Device tree overlay blob + * @fragment: node offset of the fragment in the overlay + * @pathp: pointer which receives the path of the target (or NULL) + * + * overlay_get_target() retrieves the target offset in the base + * device tree of a fragment, no matter how the actual targetting is + * done (through a phandle or a path) + * + * returns: + * the targetted node offset in the base device tree + * Negative error code on error + */ +static int overlay_get_target(const void *fdt, const void *fdto, + int fragment, char const **pathp) +{ + uint32_t phandle; + const char *path = NULL; + int path_len = 0, ret; + + /* Try first to do a phandle based lookup */ + phandle = overlay_get_target_phandle(fdto, fragment); + if (phandle == (uint32_t)-1) + return -FDT_ERR_BADPHANDLE; + + /* no phandle, try path */ + if (!phandle) { + /* And then a path based lookup */ + path = fdt_getprop(fdto, fragment, "target-path", &path_len); + if (path) + ret = fdt_path_offset(fdt, path); + else + ret = path_len; + } else + ret = fdt_node_offset_by_phandle(fdt, phandle); + + /* + * If we haven't found either a target or a + * target-path property in a node that contains a + * __overlay__ subnode (we wouldn't be called + * otherwise), consider it a improperly written + * overlay + */ + if (ret < 0 && path_len == -FDT_ERR_NOTFOUND) + ret = -FDT_ERR_BADOVERLAY; + + /* return on error */ + if (ret < 0) + return ret; + + /* return pointer to path (if available) */ + if (pathp) + *pathp = path ? path : NULL; + + return ret; +} + +/** + * overlay_phandle_add_offset - Increases a phandle by an offset + * @fdt: Base device tree blob + * @node: Device tree overlay blob + * @name: Name of the property to modify (phandle or linux,phandle) + * @delta: offset to apply + * + * overlay_phandle_add_offset() increments a node phandle by a given + * offset. + * + * returns: + * 0 on success. + * Negative error code on error + */ +static int overlay_phandle_add_offset(void *fdt, int node, + const char *name, uint32_t delta) +{ + const fdt32_t *val; + uint32_t adj_val; + int len; + + val = fdt_getprop(fdt, node, name, &len); + if (!val) + return len; + + if (len != sizeof(*val)) + return -FDT_ERR_BADPHANDLE; + + adj_val = fdt32_to_cpu(*val); + if ((adj_val + delta) < adj_val) + return -FDT_ERR_NOPHANDLES; + + adj_val += delta; + if (adj_val == (uint32_t)-1) + return -FDT_ERR_NOPHANDLES; + + return fdt_setprop_inplace_u32(fdt, node, name, adj_val); +} + +/** + * overlay_adjust_node_phandles - Offsets the phandles of a node + * @fdto: Device tree overlay blob + * @node: Offset of the node we want to adjust + * @delta: Offset to shift the phandles of + * + * overlay_adjust_node_phandles() adds a constant to all the phandles + * of a given node. This is mainly use as part of the overlay + * application process, when we want to update all the overlay + * phandles to not conflict with the overlays of the base device tree. + * + * returns: + * 0 on success + * Negative error code on failure + */ +static int overlay_adjust_node_phandles(void *fdto, int node, + uint32_t delta) +{ + int child; + int ret; + + ret = overlay_phandle_add_offset(fdto, node, "phandle", delta); + if (ret && ret != -FDT_ERR_NOTFOUND) + return ret; + + ret = overlay_phandle_add_offset(fdto, node, "linux,phandle", delta); + if (ret && ret != -FDT_ERR_NOTFOUND) + return ret; + + fdt_for_each_subnode(child, fdto, node) { + ret = overlay_adjust_node_phandles(fdto, child, delta); + if (ret) + return ret; + } + + return 0; +} + +/** + * overlay_adjust_local_phandles - Adjust the phandles of a whole overlay + * @fdto: Device tree overlay blob + * @delta: Offset to shift the phandles of + * + * overlay_adjust_local_phandles() adds a constant to all the + * phandles of an overlay. This is mainly use as part of the overlay + * application process, when we want to update all the overlay + * phandles to not conflict with the overlays of the base device tree. + * + * returns: + * 0 on success + * Negative error code on failure + */ +static int overlay_adjust_local_phandles(void *fdto, uint32_t delta) +{ + /* + * Start adjusting the phandles from the overlay root + */ + return overlay_adjust_node_phandles(fdto, 0, delta); +} + +/** + * overlay_update_local_node_references - Adjust the overlay references + * @fdto: Device tree overlay blob + * @tree_node: Node offset of the node to operate on + * @fixup_node: Node offset of the matching local fixups node + * @delta: Offset to shift the phandles of + * + * overlay_update_local_nodes_references() update the phandles + * pointing to a node within the device tree overlay by adding a + * constant delta. + * + * This is mainly used as part of a device tree application process, + * where you want the device tree overlays phandles to not conflict + * with the ones from the base device tree before merging them. + * + * returns: + * 0 on success + * Negative error code on failure + */ +static int overlay_update_local_node_references(void *fdto, + int tree_node, + int fixup_node, + uint32_t delta) +{ + int fixup_prop; + int fixup_child; + int ret; + + fdt_for_each_property_offset(fixup_prop, fdto, fixup_node) { + const fdt32_t *fixup_val; + const char *tree_val; + const char *name; + int fixup_len; + int tree_len; + int i; + + fixup_val = fdt_getprop_by_offset(fdto, fixup_prop, + &name, &fixup_len); + if (!fixup_val) + return fixup_len; + + if (fixup_len % sizeof(uint32_t)) + return -FDT_ERR_BADOVERLAY; + + tree_val = fdt_getprop(fdto, tree_node, name, &tree_len); + if (!tree_val) { + if (tree_len == -FDT_ERR_NOTFOUND) + return -FDT_ERR_BADOVERLAY; + + return tree_len; + } + + for (i = 0; i < (fixup_len / sizeof(uint32_t)); i++) { + fdt32_t adj_val; + uint32_t poffset; + + poffset = fdt32_to_cpu(fixup_val[i]); + + /* + * phandles to fixup can be unaligned. + * + * Use a memcpy for the architectures that do + * not support unaligned accesses. + */ + memcpy(&adj_val, tree_val + poffset, sizeof