24 May, 2019
2 commits
-
If a device has relevant power domain, we will check the power up
result in probing the device. If the power up is failed, the device_probe
will return failure immediately.The only exception is the new FLAG (DM_FLAG_IGNORE_POWER_ON) is set by driver
to indicate ignore the power up result.Signed-off-by: Ye Li
(cherry picked from commit 8524ca764d8fbd05da1593abfed62bb075c50cd4) -
Add a new driver FLAG (DM_FLAG_IGNORE_DEFAULT_CLKS). If any driver
is set with this flag, then when probing the device, we will skip
setting the default clocks.This is useful when clock driver can't work with some device driver.
Signed-off-by: Ye Li
10 Dec, 2018
1 commit
-
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
Reviewed-by: Simon Glass
Reviewed-by: Heiko Schocher
30 Nov, 2018
1 commit
-
Add two functions which can find a child device by uclass or by name.
The first is useful with Multi-Function-Devices (MFDs) to find one of a
particular type. The second is useful when only the name is known.Signed-off-by: Simon Glass
15 Nov, 2018
1 commit
-
Currently the comments of several APIs (eg: dm_init_and_scan()) say:
@pre_reloc_only: If true, bind only drivers with the DM_FLAG_PRE_RELOC
flag. If false bind all drivers.The 'Pre-Relocation Support' chapter in doc/driver-model/README.txt
documents the same that both device tree properties and driver flag
are supported.However the implementation only checks these special device tree
properties without checking the driver flag at all. This updates
lists_bind_fdt() to consider both scenarios.Signed-off-by: Bin Meng
Reviewed-by: Simon Glass
Squashed in http://patchwork.ozlabs.org/patch/996473/ :
Signed-off-by: Simon Glass
09 Oct, 2018
3 commits
-
Some devices have children and want to press an existing inactive child
into service when needed. Add a function to help with this.Signed-off-by: Simon Glass
-
Quite a few functions do not actually modify the device that is passed in.
Update the function signatures to reflect that.Signed-off-by: Simon Glass
-
There is no reason why this feature should not be supported for uclass-
private data. Update the code accordingly.Signed-off-by: Simon Glass
30 Sep, 2018
1 commit
-
We cannot use device structures to disable devices, since getting
them with the API functions would bind and activate the device, which
would fail if the underlying device does not exist.
Reviewed-by: Simon Glass
21 Aug, 2018
1 commit
-
Also add device_find_global_by_ofnode() that also find a device based on
the OF node, but doesn't probe the device.Signed-off-by: Jean-Jacques Hiblot
06 Aug, 2018
1 commit
-
Enable power domain associated with the device when probe.
Signed-off-by: Peng Fan
Reviewed-by: Simon Glass
09 Jul, 2018
1 commit
-
Add a new device_bind_ofnode() function which can bind a device given its
ofnode. This allows binding devices more easily with livetree nodes.Signed-off-by: Simon Glass
08 May, 2018
1 commit
-
device_is_compatible() takes udevice, but there is no such a helper
that takes ofnode.Signed-off-by: Masahiro Yamada
Reviewed-by: Simon Glass
07 May, 2018
1 commit
-
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.Signed-off-by: Tom Rini
29 Jan, 2018
1 commit
-
Linux uses the properties 'assigned-clocks', 'assigned-clock-parents'
and 'assigned-clock-rates' to configure the clock subsystem for use
with various peripheral nodes.This implements clk_set_defaults() and hooks it up with the general
device probibin in drivers/core/device.c: when a new device is probed,
clk_set_defaults() will be called for it and will process the
properties mentioned above.Note that this functionality is designed to fail gracefully (i.e. if a
clock-driver does not implement set_parent(), we simply accept this
and ignore the error) as not to break existing board-support.Signed-off-by: Philipp Tomsich
Tested-by: David WuSeries-changes: 2
- Fixed David's email address.Series-version: 2
Cover-letter:
clk: support assigned-clock, assigned-clock-parents, assigned-clock-ratesFor various peripherals on Rockchip SoCs (e.g. for the Ethernet GMAC),
the parent-clock needs to be set via the DTS. This adds the required
plumbing and implements the GMAC case for the RK3399.
END
22 Jan, 2018
1 commit
-
Judging from its name and parameters, device_is_compatible looks like it
is compatible with a live device tree, but it actually isn't.Make it compatible with a live device tree.
Reviewed-by: Simon Glass
Signed-off-by: Mario Six
09 Oct, 2017
1 commit
-
The size variable may not be always be a mulitple of
ARCH_DMA_MINALIGN and using it to flush cache leads to cache
misaligned warnings.Therefore, round up the size to a multiple of ARCH_DMA_MINLAIGN
when allocating private data.Signed-off-by: Faiz Abbas
Reviewed-by: Simon Glass
05 Oct, 2017
1 commit
-
As we discussed before in ML, dm_dbg() causes undefined reference
error if #define DEBUG is added to users, but not drivers/core/util.cWe do not need this macro because we can use pr_debug() instead, and
it is pretty easy to enable it for the DM core by using ccflags-y.Signed-off-by: Masahiro Yamada
01 Jun, 2017
5 commits
-
When a live tree is being used we need to record the node that was used to
create the device. Update device_bind_with_driver_data() to support this.Signed-off-by: Simon Glass
-
The of_ prefix conflicts with the livetree version of this function.
Rename it to avoid problems when we add livetree support.Signed-off-by: Simon Glass
-
This core function will need to work with a live tree also. Update it to
accept an ofnode instead of an offset.Signed-off-by: Simon Glass
-
With live tree we need a struct device_node * to reference a node. With
the existing flat tree, we need an int offset. We need to unify these into
a single value which can represent both.Add an ofnode union for this and adjust existing code to move to this.
Signed-off-by: Simon Glass
-
Move this group of address-related functions into a new file. These use
the flat device tree. Future work will provide new versions of these which
can support the live tree.Signed-off-by: Simon Glass
14 Apr, 2017
1 commit
-
There is a strange interaction with drivers which use DMA if the cache
starts off in a dirty state. Buffer space which the driver reads (but has
not previously written) can contain zero bytes from alloc_priv(). This can
cause corruption of the memory used by DMA for incoming data.Fix this and add a comment to explain the problem.
This allows the dwc2 driver to work correctly with driver model, for
example.Signed-off-by: Simon Glass
05 Apr, 2017
1 commit
-
This patch adds the flags parameter to device_remove() and changes all
calls to this function to provide the default value of DM_REMOVE_NORMAL
for "normal" device removal.This is in preparation for the driver specific pre-OS (e.g. DMA
cancelling) remove support.Signed-off-by: Stefan Roese
Cc: Simon Glass
Acked-by: Simon Glass
08 Feb, 2017
1 commit
-
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.Signed-off-by: Simon Glass
03 Dec, 2016
1 commit
-
The currently available functions accessing the 'reg' property of a
device only retrieve the address. Sometimes its also necessary to
retrieve the size described by the 'reg' property. This patch adds
the new function dev_get_addr_size_index() which retrieves both,
the address and the size described by the 'reg' property.Signed-off-by: Stefan Roese
Cc: Simon Glass
Acked-by: Simon Glass
24 Oct, 2016
1 commit
-
Commit b02e4044ff8e ("libfdt: Bring in upstream stringlist
functions") broke codying style in some places especially
by inserting an extra whitespace before fdt_stringlist_count().Signed-off-by: Masahiro Yamada
Acked-by: Simon Glass
14 Oct, 2016
1 commit
-
These have now landed upstream. The naming is different and in one case the
function signature has changed. Update the code to match.This applies the following upstream commits by
Thierry Reding :604e61e fdt: Add functions to retrieve strings
8702bd1 fdt: Add a function to get the index of a string
2218387 fdt: Add a function to count stringsSigned-off-by: Simon Glass
12 Aug, 2016
1 commit
-
Some code may want to read reg values from DT, but from nodes that aren't
associated with DM devices, so using dev_get_addr_index() isn't
appropriate. In this case, fdtdec_get_addr_size_*() are the functions to
use. However, "translation" (via the chain of ranges properties in parent
nodes) may still be desirable. Add a function parameter to request that,
and implement it. Update all call sites to default to the original
behaviour.Signed-off-by: Stephen Warren
Reviewed-by: Simon Glass
Squashed in build fix from Stephen:
Signed-off-by: Simon Glass
15 Jul, 2016
3 commits
-
Devices which use of-platdata have their own platdata. However, in many
cases the driver will have its own auto-alloced platdata, for use with the
device tree. The ofdata_to_platdata() method converts the device tree
settings to platdata.With of-platdata we would not normally allocate the platdata since it is
provided by the U_BOOT_DEVICE() declaration. However this is inconvenient
since the of-platdata struct is closely tied to the device tree properties.
It is unlikely to exactly match the platdata needed by the driver.In fact a useful approach is to declare platdata in the driver like this:
struct r3288_mmc_platdata {
struct dtd_rockchip_rk3288_dw_mshc of_platdata;
/* the 'normal' fields go here */
};In this case we have dt_platadata available, but the normal fields are not
present, since ofdata_to_platdata() is never called. In fact driver model
doesn't allocate any space for the 'normal' fields, since it sees that there
is already platform data attached to the device.To make this easier, adjust driver model to allocate the full size of the
struct (i.e. platdata_auto_alloc_size from the driver) and copy in the
of-platdata. This means that when the driver's bind() method is called,
the of-platdata will be present, followed by zero bytes for the empty
'normal field' portion.A new DM_FLAG_OF_PLATDATA flag is available that indicates that the platdata
came from of-platdata. When the allocation/copy happens, the
DM_FLAG_ALLOC_PDATA flag will be set as well. The dtoc tool is updated to
output the platdata_size field, since U-Boot has no other way of knowing
the size of the of-platdata struct.Signed-off-by: Simon Glass
-
This is a flag. Adjust the name to be consistent with the other flags.
Signed-off-by: Simon Glass
-
When CONFIG_SPL_OF_PLATDATA is enabled we should not access the device
tree. Remove all references to this in the core driver-model code.Signed-off-by: Simon Glass
09 Jul, 2016
1 commit
-
This API helps to map physical register addresss pace of device to
virtual address space easily. Its just a wrapper around map_physmem()
with MAP_NOCACHE flag.Signed-off-by: Vignesh R
Suggested-by: Simon Glass
Reviewed-by: Jagan Teki
Reviewed-by: Simon Glass
Signed-off-by: Jagan Teki
27 May, 2016
1 commit
-
This will allow a driver's bind function to use the driver data. One
example is the Tegra186 GPIO driver, which instantiates child devices
for each of its GPIO ports, yet supports two different HW instances each
with a different set of ports, and identified by the udevice_id .data
field.Signed-off-by: Stephen Warren
Acked-by: Simon Glass
25 May, 2016
1 commit
-
Provide an api to check whether the given device or machine is
compatible with the given compat string which helps in making
decisions in drivers based on device or machine compatible.Idea taken from Linux.
Signed-off-by: Mugunthan V N
Reviewed-by: Joe Hershberger
17 May, 2016
2 commits
-
Some devices have a name that is stored in allocated memory. At present
there is no mechanism to free this memory when the device is unbound.Add a device flag to track whether a name is allocated and a function to
add the flag. Free the memory when the device is unbound.Signed-off-by: Simon Glass
-
Use the device's own DT offset, not the device's parent's.
Fixes: 43c4d44e3330 ("fdt: implement dev_get_addr_name()")
Signed-off-by: Stephen Warren
Acked-by: Simon Glass
25 Apr, 2016
1 commit
-
On some platforms (e.g. x86), the return value of dev_get_addr() can't
be assigned to a pointer type variable directly. As there might be a
difference between the size of fdt_addr_t and the pointer type. On
x86 for example, "fdt_addr_t" is 64bit but "void *" only 32bit. So
assigning the register base directly in dev_get_addr() results in this
compilation warning:
warning: cast to pointer from integer of different sizeThis patch introduces the new function dev_get_addr_ptr() that
returns a pointer to the 'reg' address that can be used by drivers
in this case.Signed-off-by: Stefan Roese
Reviewed-by: Simon Glass
Reviewed-by: Bin Meng
15 Apr, 2016
1 commit
-
This function parses the reg property based on an index found in the
reg-names property. This is required for bindings that are written
using reg-names rather than hard-coding indices in reg.Signed-off-by: Stephen Warren
Acked-by: Simon Glass