diff options
Diffstat (limited to 'configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch')
-rw-r--r-- | configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch new file mode 100644 index 0000000..8bc5926 --- /dev/null +++ b/configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch @@ -0,0 +1,117 @@ +From: Sascha Hauer <s.hauer@pengutronix.de> +Date: Fri, 20 Dec 2019 12:27:02 +0100 +Subject: [PATCH] of: Add of_bus_n_xxx_cells() + +Added straight from the Kernel. + +Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> +--- + drivers/of/base.c | 46 ++++++++++++++++++++++++++++------------------ + include/of.h | 12 ++++++++++++ + 2 files changed, 40 insertions(+), 18 deletions(-) + +diff --git a/drivers/of/base.c b/drivers/of/base.c +index 98ef5fc0d421..e1d3707d01ee 100644 +--- a/drivers/of/base.c ++++ b/drivers/of/base.c +@@ -78,36 +78,46 @@ static struct device_node *of_aliases; + #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1 + #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1 + +-int of_n_addr_cells(struct device_node *np) ++int of_bus_n_addr_cells(struct device_node *np) + { +- const __be32 *ip; ++ u32 cells; ++ ++ for (; np; np = np->parent) ++ if (!of_property_read_u32(np, "#address-cells", &cells)) ++ return cells; + +- do { +- if (np->parent) +- np = np->parent; +- ip = of_get_property(np, "#address-cells", NULL); +- if (ip) +- return be32_to_cpup(ip); +- } while (np->parent); + /* No #address-cells property for the root node */ + return OF_ROOT_NODE_ADDR_CELLS_DEFAULT; + } ++ ++int of_n_addr_cells(struct device_node *np) ++{ ++ if (np->parent) ++ np = np->parent; ++ ++ return of_bus_n_addr_cells(np); ++} + EXPORT_SYMBOL(of_n_addr_cells); + +-int of_n_size_cells(struct device_node *np) ++int of_bus_n_size_cells(struct device_node *np) + { +- const __be32 *ip; ++ u32 cells; ++ ++ for (; np; np = np->parent) ++ if (!of_property_read_u32(np, "#size-cells", &cells)) ++ return cells; + +- do { +- if (np->parent) +- np = np->parent; +- ip = of_get_property(np, "#size-cells", NULL); +- if (ip) +- return be32_to_cpup(ip); +- } while (np->parent); + /* No #size-cells property for the root node */ + return OF_ROOT_NODE_SIZE_CELLS_DEFAULT; + } ++ ++int of_n_size_cells(struct device_node *np) ++{ ++ if (np->parent) ++ np = np->parent; ++ ++ return of_bus_n_size_cells(np); ++} + EXPORT_SYMBOL(of_n_size_cells); + + struct property *of_find_property(const struct device_node *np, +diff --git a/include/of.h b/include/of.h +index 98ddf795cbb4..fb49f40c12a0 100644 +--- a/include/of.h ++++ b/include/of.h +@@ -113,7 +113,9 @@ struct device_node *of_unflatten_dtb_const(const void *infdt); + struct cdev; + + #ifdef CONFIG_OFTREE ++extern int of_bus_n_addr_cells(struct device_node *np); + extern int of_n_addr_cells(struct device_node *np); ++extern int of_bus_n_size_cells(struct device_node *np); + extern int of_n_size_cells(struct device_node *np); + + extern struct property *of_find_property(const struct device_node *np, +@@ -330,11 +332,21 @@ static inline struct device_d *of_platform_device_create(struct device_node *np, + return NULL; + } + ++static inline int of_bus_n_addr_cells(struct device_node *np) ++{ ++ return 0; ++} ++ + static inline int of_n_addr_cells(struct device_node *np) + { + return 0; + } + ++static inline int of_bus_n_size_cells(struct device_node *np) ++{ ++ return 0; ++} ++ + static inline int of_n_size_cells(struct device_node *np) + { + return 0; |