24 May, 2019
2 commits
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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
20 Feb, 2019
1 commit
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At present it is not possible to use the syscon devices for PCI devices
since a regmap is required. Since PCI uses a 3-cell address the conversion
of the 'reg' property to an address always fails. In any case, the regmap
is not useful with PCI since devices are accessed through the PCI bus
which regmap does not support.Add a special case for PCI syscon devices, so that they don't set up a
regmap.Signed-off-by: Simon Glass
Reviewed-by: Bin Meng
12 Feb, 2019
1 commit
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- DM I2C improvements
09 Feb, 2019
1 commit
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While uclass_find_device() fails with -ENODEV in case of list_empty
strangely uclass_find_first_device() returns 0.Fix uclass_find_first_device() to also fail with -ENODEV instead.
Signed-off-by: Marcel Ziswiler
Reviewed-by: Simon Glass
08 Feb, 2019
2 commits
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It is wrapper for calling of_alias_get_highest_id() when live tree is
enabled and fdtdec_get_alias_highest_id() if not.Signed-off-by: Michal Simek
Reviewed-by: Heiko Schocher
Reviewed-by: Simon Glass -
The same functionality was added to Linux for i2c bus registration with this
commit message:"
of: base: add function to get highest id of an alias stemI2C supports adding adapters using either a dynamic or fixed id. The
latter is provided by aliases in the DT case. To prevent id collisions
of those two types, install this function which gives us the highest
fixed id, so we can then let the dynamically created ones come after
this highest number.Signed-off-by: Wolfram Sang
Acked-by: Rob Herring
Signed-off-by: Wolfram Sang
"Add it also to U-Boot for DM I2C support.
Signed-off-by: Michal Simek
Reviewed-by: Heiko Schocher
Reviewed-by: Simon Glass
18 Jan, 2019
1 commit
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Signed-off-by: Chris Packham
Reviewed-by: Simon Glass
15 Jan, 2019
1 commit
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At present the 'Index' column assumes there is only one digit. But on some
devices (e.g. snow) there are a lot of regulators and GPIO banks. Adjust
the output to allow for two digits without messing up the display.Also capatalise the heading to match.
Fixes: 5197dafc42 (dm: core: Widen the dump tree to show more of the
driver's name.)Signed-off-by: Simon Glass
Reviewed-by: Liviu Dudau
16 Dec, 2018
1 commit
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+ Update the function syscon_node_to_regmap() to force bound on
syscon uclass and directly use the list of device from DM.
+ Remove the static list syscon_list.This patch avoid issue (crash) when syscon_node_to_regmap() is called
before and after reallocation (list content is invalid).Signed-off-by: Patrick Delaunay
14 Dec, 2018
1 commit
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The current dev_read...() functions use s32 and u32 which are convenient
for device tree but not so useful for normal code, which often wants to
use normal integers for values.Add a helper which supports returning an unsigned int. Also add signed
versions of the unsigned readers.Signed-off-by: Simon Glass
10 Dec, 2018
4 commits
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- DM_I2C_COMPAT removal for all ti platforms from Jean-Jacques Hiblot
- Fix in i2c command help output from Chirstoph Muellner. -
To reset the DM after a new dtb is loaded, we need to call dm_uninit()
and then dm_init(). This fails however because gd->dm_root is not nullified
by dm_uninit().
Fixing it by setting gd->dm_root in dm_uninit().Signed-off-by: Jean-Jacques Hiblot
Reviewed-by: Simon Glass
Reviewed-by: Heiko Schocher -
It is currently not possible to include the support to remove devices in
the SPL. This is however needed by platforms that re-select their dtb after
DM is initialized; they need to remove all the previously bound devices
before triggering a scan of the new DT.Add a Kconfig option to be able to include the support for device removal
in the SPL.Signed-off-by: Jean-Jacques Hiblot
Reviewed-by: Simon GlassSeeries-changes:3
- update commit message
Reviewed-by: Tom Rini
Reviewed-by: Heiko Schocher -
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
07 Dec, 2018
1 commit
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syscon_regmap_lookup_by_phandle() can be used to get the regmap of a syscon
device from a reference in the DTS. It operates similarly to the linux
version of the namesake function.Signed-off-by: Jean-Jacques Hiblot
Reviewed-by: Simon Glass
05 Dec, 2018
1 commit
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This functions allow us to get and remap I/O addresses by name, which is useful when there are multiple reg addresses indexed by reg-names property.
This is needed in bmips dma/eth patch series, but can also be used on many
other drivers.Signed-off-by: Álvaro Fernández Rojas
Reviewed-by: Daniel Schwierzeck
Reviewed-by: Simon Glass
30 Nov, 2018
3 commits
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Currently the else part of ofnode_get_addr_index function
does not fetch addresses based on the index but rather just
returns the base address. Fix that.Signed-off-by: Keerthy
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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
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This function may be useful to code outside of the code driver-model
implementation. Export it and add a test.Signed-off-by: Simon Glass
21 Nov, 2018
1 commit
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With drivers that have prefix names that are quite long (like
'versatile_') it is useful to have a wider column for the driver's
name when dumping the device driver tree.Also update the tests to take into account the wider output format.
Signed-off-by: Liviu Dudau
Reviewed-by: Simon Glass
17 Nov, 2018
1 commit
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Similarly to uclass_first_device_err(), add uclass_next_device_err()
which returns an error if there are no next devices in that uclass.Signed-off-by: Patrice Chotard
Reviewed-by: Simon Glass
15 Nov, 2018
13 commits
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Use the uclass_foreach_dev() macro instead of the open coded version.
Signed-off-by: Liviu Dudau
Reviewed-by: Simon Glass -
Some buses need to set up their child devices after they are probed.
Support a common child_post_probe() method for the uclass.With this change, the two APIs uclass_pre_probe_device() and
uclass_post_probe_device() become symmetric.Signed-off-by: Bin Meng
Reviewed-by: Simon Glass -
Add support for switching the endianness of regmap accesses via the
"little-endian", "big-endian", and "native-endian" boolean properties in
the device tree.The default endianness is native endianness.
Signed-off-by: Mario Six
Reviewed-by: Simon Glass
Reviewed-by: Daniel Schwierzeck -
It is useful to be able to treat the different ranges of a regmap
separately to be able to use distinct offset for them, but this is
currently not implemented in the regmap API.To preserve backwards compatibility, add regmap_read_range and
regmap_write_range functions that take an additional parameter
'range_num' that identifies the range to operate on.Reviewed-by: Anatolij Gustschin
Reviewed-by: Simon Glass
Signed-off-by: Mario Six -
The regmap functions currently assume that all register map accesses
have a data width of 32 bits, but there are maps that have different
widths.To rectify this, implement the regmap_raw_read and regmap_raw_write
functions from the Linux kernel API that specify the width of a desired
read or write operation on a regmap.Implement the regmap_read and regmap_write functions using these raw
functions in a backwards-compatible manner.Reviewed-by: Anatolij Gustschin
Signed-off-by: Mario Six
Reviewed-by: Simon Glass -
Add some debug output in cases where the initialization of a regmap
fails.Reviewed-by: Anatolij Gustschin
Reviewed-by: Simon Glass
Signed-off-by: Mario Six -
Both fdtdec_get_addr_size_fixed and of_address_to_resource can fail with
an error, which is not currently checked during regmap initialization.Since the indentation depth is already quite deep, extract a new
'init_range' method to do the initialization.Reviewed-by: Anatolij Gustschin
Reviewed-by: Simon Glass
Signed-off-by: Mario Six -
A newly created property is currently not freed if a name could not be
allocated. This patch fixes the resulting memory leak in the error
patch.Reported-by: Coverity (CID: 184085)
Fixes: e369e58df79c ("core: Add functions to set properties in live-tree")
Signed-off-by: Mario Six -
ofnode_read_simple_addr_cells may fail and return a negative error code.
Check for this when initializing regmaps.Also check if both_len is zero, since this is perfectly possible, and
would lead to a division-by-zero further down the line.Reviewed-by: Anatolij Gustschin
Reviewed-by: Simon Glass
Signed-off-by: Mario Six -
Document the regmap_alloc() function.
Reviewed-by: Anatolij Gustschin
Reviewed-by: Simon Glass
Signed-off-by: Mario Six -
Commit f2006808f099: ("dm: core: parse chosen node") added a logic
to parse the chosen node during dm_scan_fdt_node(), but unfortunately
it missed adding the same logic in dm_scan_fdt_live(). This mirrors
the logic in the livetree version.The weird thing is that commit f2006808f099 did update the test case
to test such logic, but even if I reset to that commit, the test case
still fails, and I have no idea how it could pass.With this fix, the following 2 test cases now pass:
Test: dm_test_bus_children: bus.c
test/dm/bus.c:112, dm_test_bus_children(): num_devices ==
list_count_items(&uc->dev_head): Expected 7, got 6Test: dm_test_fdt: test-fdt.c
test/dm/test-fdt.c:184, dm_test_fdt(): num_devices ==
list_count_items(&uc->dev_head): Expected 7, got 6Fixes: f2006808f099 ("dm: core: parse chosen node")
Signed-off-by: Bin Meng
Reviewed-by: Simon Glass -
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 -
This adds a new API dm_ofnode_pre_reloc(), a livetree equivalent
API of dm_fdt_pre_reloc().Signed-off-by: Bin Meng
Reviewed-by: Simon Glass
09 Oct, 2018
5 commits
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At present it is not possible to specify that a node should be used before
relocation (in U-Boot proper) without it also ending up in SPL and TPL
device trees. Add a new "u-boot,dm-pre-proper" boolean property for this.Signed-off-by: Simon Glass
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At present ofnode_read_fmap_entry() reads a flash map entry in a format
which is not supported by binman. To allow use to use binman-format
descriptions, update this function.Also add a simple test.
Signed-off-by: Simon Glass
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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
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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
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There is no reason why this feature should not be supported for uclass-
private data. Update the code accordingly.Signed-off-by: Simon Glass