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| author | Rob Herring <robh@kernel.org> | 2023-06-09 12:30:56 -0600 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2023-08-09 15:41:38 +0930 |
| commit | 23ad7ec1ed79b270a63004f43a301591647f65e8 (patch) | |
| tree | e1fec2e07f19c9fdaf3a2b4897c598b1d384796f /drivers/fsi | |
| parent | 288f1acf51d9844ce130d69233c2aea7999f69db (diff) | |
| download | linux-stable-23ad7ec1ed79b270a63004f43a301591647f65e8.tar.gz linux-stable-23ad7ec1ed79b270a63004f43a301591647f65e8.tar.bz2 linux-stable-23ad7ec1ed79b270a63004f43a301591647f65e8.zip | |
fsi: Use of_property_read_reg() to parse "reg"
Use the recently added of_property_read_reg() helper to get the
untranslated "reg" address value.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20230609183056.1765183-1-robh@kernel.org
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/fsi')
| -rw-r--r-- | drivers/fsi/fsi-core.c | 39 |
1 files changed, 9 insertions, 30 deletions
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 0b927c9f4267..19c4d5b3bde9 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -16,6 +16,7 @@ #include <linux/idr.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_address.h> #include <linux/slab.h> #include <linux/bitops.h> #include <linux/cdev.h> @@ -415,28 +416,18 @@ EXPORT_SYMBOL_GPL(fsi_slave_release_range); static bool fsi_device_node_matches(struct device *dev, struct device_node *np, uint32_t addr, uint32_t size) { - unsigned int len, na, ns; - const __be32 *prop; - uint32_t psize; + u64 paddr, psize; - na = of_n_addr_cells(np); - ns = of_n_size_cells(np); - - if (na != 1 || ns != 1) - return false; - - prop = of_get_property(np, "reg", &len); - if (!prop || len != 8) + if (of_property_read_reg(np, 0, &paddr, &psize)) return false; - if (of_read_number(prop, 1) != addr) + if (paddr != addr) return false; - psize = of_read_number(prop + 1, 1); if (psize != size) { dev_warn(dev, - "node %s matches probed address, but not size (got 0x%x, expected 0x%x)", - of_node_full_name(np), psize, size); + "node %pOF matches probed address, but not size (got 0x%llx, expected 0x%x)", + np, psize, size); } return true; @@ -653,24 +644,12 @@ static void fsi_slave_release(struct device *dev) static bool fsi_slave_node_matches(struct device_node *np, int link, uint8_t id) { - unsigned int len, na, ns; - const __be32 *prop; - - na = of_n_addr_cells(np); - ns = of_n_size_cells(np); - - /* Ensure we have the correct format for addresses and sizes in - * reg properties - */ - if (na != 2 || ns != 0) - return false; + u64 addr; - prop = of_get_property(np, "reg", &len); - if (!prop || len != 8) + if (of_property_read_reg(np, 0, &addr, NULL)) return false; - return (of_read_number(prop, 1) == link) && - (of_read_number(prop + 1, 1) == id); + return addr == (((u64)link << 32) | id); } /* Find a matching node for the slave at (link, id). Returns NULL if none |