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author | Simon Glass <sjg@chromium.org> | 2014-11-11 10:46:18 -0700 |
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committer | Simon Glass <sjg@chromium.org> | 2014-11-22 10:16:45 +0100 |
commit | 2ef249b4420818d7ea31a031f48825e5f38ed3ac (patch) | |
tree | 5f02f7a902dd73e2c7bd0fafe9fa643d0f69c361 /drivers/core | |
parent | c1a6f371ae65f1a3709e872e08bed51321e292fc (diff) | |
download | u-boot-2ef249b4420818d7ea31a031f48825e5f38ed3ac.tar.gz u-boot-2ef249b4420818d7ea31a031f48825e5f38ed3ac.tar.bz2 u-boot-2ef249b4420818d7ea31a031f48825e5f38ed3ac.zip |
dm: core: Allow access to the device's driver_id data
When the device is created from a device tree node, it matches a compatible
string. Allow access to that string and the associated data.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers/core')
-rw-r--r-- | drivers/core/device.c | 5 | ||||
-rw-r--r-- | drivers/core/lists.c | 20 |
2 files changed, 19 insertions, 6 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c index 576a4f253b..81ddecade2 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -380,3 +380,8 @@ int device_find_next_child(struct udevice **devp) return 0; } + +ulong dev_get_of_data(struct udevice *dev) +{ + return dev->of_id->data; +} diff --git a/drivers/core/lists.c b/drivers/core/lists.c index 3a1ea85654..24d2864924 100644 --- a/drivers/core/lists.c +++ b/drivers/core/lists.c @@ -83,28 +83,33 @@ int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only) * * @param blob: Device tree pointer * @param offset: Offset of node in device tree - * @param of_matchL List of compatible strings to match + * @param of_match: List of compatible strings to match + * @param of_idp: Returns the match that was found * @return 0 if there is a match, -ENOENT if no match, -ENODEV if the node * does not have a compatible string, other error <0 if there is a device * tree error */ static int driver_check_compatible(const void *blob, int offset, - const struct udevice_id *of_match) + const struct udevice_id *of_match, + const struct udevice_id **of_idp) { int ret; + *of_idp = NULL; if (!of_match) return -ENOENT; while (of_match->compatible) { ret = fdt_node_check_compatible(blob, offset, of_match->compatible); - if (!ret) + if (!ret) { + *of_idp = of_match; return 0; - else if (ret == -FDT_ERR_NOTFOUND) + } else if (ret == -FDT_ERR_NOTFOUND) { return -ENODEV; - else if (ret < 0) + } else if (ret < 0) { return -EINVAL; + } of_match++; } @@ -116,6 +121,7 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset, { struct driver *driver = ll_entry_start(struct driver, driver); const int n_ents = ll_entry_count(struct driver, driver); + const struct udevice_id *id; struct driver *entry; struct udevice *dev; bool found = false; @@ -127,7 +133,8 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset, if (devp) *devp = NULL; for (entry = driver; entry != driver + n_ents; entry++) { - ret = driver_check_compatible(blob, offset, entry->of_match); + ret = driver_check_compatible(blob, offset, entry->of_match, + &id); name = fdt_get_name(blob, offset, NULL); if (ret == -ENOENT) { continue; @@ -147,6 +154,7 @@ int lists_bind_fdt(struct udevice *parent, const void *blob, int offset, dm_warn("Error binding driver '%s'\n", entry->name); return ret; } else { + dev->of_id = id; found = true; if (devp) *devp = dev; |