diff options
| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2018-12-07 14:50:39 +0100 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2018-12-10 06:05:32 +0100 |
| commit | 3542ff29e4542b8cb0ac3ae861247e9bd487f22f (patch) | |
| tree | c367a4fefd555225d5be719f2cd12e564b4592ad /drivers/core/device.c | |
| parent | f32a8007ef0fcc1a8f27e0cb444f6861163b03f6 (diff) | |
dm: device: Allow using uclass_find_device_by_seq() without OF_CONTROL
If OF_CONTROL is not enabled and DM_SEQ_ALIAS is enabled, we must
assign an alias (requested sequence number) to devices that belongs to a
class with the DM_UC_FLAG_SEQ_ALIAS flag. Otherwise
uclass_find_device_by_seq() cannot be used to get/probe a device. In
particular i2c_get_chip_for_busnum() cannot be used.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers/core/device.c')
| -rw-r--r-- | drivers/core/device.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c index 836bcadced..0d15e5062b 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -70,7 +70,8 @@ static int device_bind_common(struct udevice *parent, const struct driver *drv, dev->seq = -1; dev->req_seq = -1; - if (CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(DM_SEQ_ALIAS)) { + if (CONFIG_IS_ENABLED(DM_SEQ_ALIAS) && + (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS)) { /* * Some devices, such as a SPI bus, I2C bus and serial ports * are numbered using aliases. @@ -78,10 +79,11 @@ static int device_bind_common(struct udevice *parent, const struct driver *drv, * This is just a 'requested' sequence, and will be * resolved (and ->seq updated) when the device is probed. */ - if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) { - if (uc->uc_drv->name && ofnode_valid(node)) { + if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) { + if (uc->uc_drv->name && ofnode_valid(node)) dev_read_alias_seq(dev, &dev->req_seq); - } + } else { + dev->req_seq = uclass_find_next_free_req_seq(drv->id); } } |