From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: [PATCH 4/5] checks: Add infrastructure for setting bus type of nodes Date: Tue, 24 Jan 2017 11:45:33 -0600 Message-ID: <20170124174534.3865-5-robh@kernel.org> References: <20170124174534.3865-1-robh@kernel.org> Return-path: In-Reply-To: <20170124174534.3865-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Sender: devicetree-compiler-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: David Gibson Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-compiler-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org In preparation to support bus specific checks, add the necessary infrastructure to determine and set the bus type for nodes. Signed-off-by: Rob Herring --- checks.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ dtc.h | 11 +++++++++++ 2 files changed, 62 insertions(+) diff --git a/checks.c b/checks.c index 8e310d69ca3d..5ef63a6a4317 100644 --- a/checks.c +++ b/checks.c @@ -587,6 +587,53 @@ static void fixup_path_references(struct check *c, struct dt_info *dti, } ERROR(path_references, fixup_path_references, NULL, &duplicate_node_names); +struct bus_type *bus_types[] = { + NULL +}; + +static void fixup_bus_type(struct check *c, struct dt_info *dti, + struct node *node) +{ + struct bus_type **bus; + + for (bus = bus_types; *bus != NULL; bus++) { + if (!(*bus)->bridge_is_type(node)) + continue; + + node->bus_type = *bus; + break; + } +} +ERROR(bus_type, fixup_bus_type, NULL); + +static void check_bus_bridge(struct check *c, struct dt_info *dti, + struct node *node) +{ + struct bus_type *bt; + + if (!node->bus_type) + return; + + bt = node->bus_type; + if (bt->check_bridge) + bt->check_bridge(c, dti, node); +} +WARNING(bus_bridge, check_bus_bridge, NULL); + +static void check_bus_device(struct check *c, struct dt_info *dti, + struct node *node) +{ + struct bus_type *bt; + + if (!node->parent || !node->parent->bus_type) + return; + + bt = node->parent->bus_type; + if (bt->check_device) + bt->check_device(c, dti, node); +} +WARNING(bus_device, check_bus_device, NULL); + /* * Semantic checks */ @@ -753,6 +800,7 @@ static struct check *check_table[] = { &explicit_phandles, &phandle_references, &path_references, + &bus_type, &address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell, &device_type_is_string, &model_is_string, &status_is_string, @@ -764,6 +812,9 @@ static struct check *check_table[] = { &unit_address_vs_reg, + &bus_bridge, + &bus_device, + &avoid_default_addr_size, &obsolete_chosen_interrupt_controller, diff --git a/dtc.h b/dtc.h index c6f125c68ba8..f27397cd7622 100644 --- a/dtc.h +++ b/dtc.h @@ -136,6 +136,16 @@ struct label { struct label *next; }; +struct check; +struct node; +struct dt_info; + +struct bus_type { + bool (*bridge_is_type)(struct node *node); + void (*check_bridge)(struct check *c, struct dt_info *dti, struct node *node); + void (*check_device)(struct check *c, struct dt_info *dti, struct node *node); +}; + struct property { bool deleted; char *name; @@ -162,6 +172,7 @@ struct node { int addr_cells, size_cells; struct label *labels; + struct bus_type *bus_type; }; #define for_each_label_withdel(l0, l) \ -- 2.10.1