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authorSimon Glass <sjg@chromium.org>2015-01-25 08:27:05 -0700
committerSimon Glass <sjg@chromium.org>2015-01-29 17:09:55 -0700
commit9cc36a2b89ebe5148d69d521745c1e1d26365c3a (patch)
treeb7c92e1a8f9f9a2a87c3fd12735ff5bc3d5a502d /drivers/i2c
parentb367053102e597eb21b0a5e86c63e8d10f368cb0 (diff)
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dm: core: Add a flag to control sequence numbering
At present we try to use the 'reg' property and device tree aliases to give devices a sequence number. The 'reg' property is often actually a memory address, so the sequence numbers thus-obtained are not useful. It would be better if the devices were just sequentially numbered in that case. In fact neither I2C nor SPI use this feature, so drop it. Some devices need us to look up an alias to number them within the uclass. Add a flag to control this, so it is not done unless it is needed. Adjust the tests to test this new behaviour. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/i2c-uclass.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index 24e5ec6..94b49df 100644
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -453,6 +453,7 @@ int i2c_post_bind(struct udevice *dev)
UCLASS_DRIVER(i2c) = {
.id = UCLASS_I2C,
.name = "i2c",
+ .flags = DM_UC_FLAG_SEQ_ALIAS,
.per_device_auto_alloc_size = sizeof(struct dm_i2c_bus),
.post_bind = i2c_post_bind,
.post_probe = i2c_post_probe,