This defines a new compatible option for MFD devices "simple-mfd" that will
make the OF core spawn child devices for all subnodes of that MFD device.
It is optional but handy for things like syscon and possibly other
simpler MFD devices.
Since there was no file to put the documentation in, I took this opportunity
to make a small writeup on MFD devices and add the compatible definition
there.
Suggested-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Devicetree <devicetree@vger.kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- DT endianness specification bindings
- Big endian 8250 serial support
- DT overlay unittest updates
- Various DT doc updates
- Compile fixes for OF_IRQ=n
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Merge tag 'devicetree-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull second batch of devicetree updates from Rob Herring:
"As Grant mentioned in the first devicetree pull request, here is the
2nd batch of DT changes for 4.1. The main remaining item here is the
endianness bindings and related 8250 driver support.
- DT endianness specification bindings
- big-endian 8250 serial support
- DT overlay unittest updates
- various DT doc updates
- compile fixes for OF_IRQ=n"
* tag 'devicetree-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
frv: add io{read,write}{16,32}be functions
mn10300: add io{read,write}{16,32}be functions
Documentation: DT bindings: add doc for Altera's SoCFPGA platform
of: base: improve of_get_next_child() kernel-doc
Doc: dt: arch_timer: discourage clock-frequency use
of: unittest: overlay: Keep track of created overlays
of/fdt: fix allocation size for device node path
serial: of_serial: Support big-endian register accesses
serial: 8250: Add support for big-endian MMIO accesses
of: Document {little,big,native}-endian bindings
of/fdt: Add endianness helper function for early init code
of: Add helper function to check MMIO register endianness
of/fdt: Remove "reg" data prints from early_init_dt_scan_memory
of: add vendor prefix for Artesyn
of: Add dummy of_irq_to_resource_table() for IRQ_OF=n
of: OF_IRQ should depend on IRQ_DOMAIN
devicetree changes queued up for v4.1. Here are the highlights:
- Lots of unittest cleanup from Frank Rowand
- Bugfixes and updates to the of_graph code
- Tighten up of_get_mac_address() code
- Documentation updates
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree changes from Grant Likely:
"Here are the devicetree changes queued up for v4.1. Nothing really
exciting here. Rob has another few commits for big-endian attached
UARTs, but those will be sent in a separate merge request since they
haven't been as thoroughly tested as this batch.
Here are the highlights:
- lots of unittest cleanup from Frank Rowand
- bugfixes and updates to the of_graph code
- tighten up of_get_mac_address() code
- documentation updates"
* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
of/unittest: Fix of_platform_depopulate test case
of/unittest: early return from test skips tests
of/unittest: breadcrumbs to reduce pain of future maintainers
of/unittest: reduce checkpatch noise - line after declarations
of/unittest: typo in error string
of/unittest: add const where needed
of_net: factor out repetitive code from of_get_mac_address()
drivers/of: Add empty ranges quirk for PA-Semi
of: Allow selection of OF_DYNAMIC and OF_OVERLAY if OF_UNITTEST
of: Empty node & property flag accessors when !OF
of: Explicitly include linux/types.h in of_graph.h
dt-bindings: brcm: rationalize Broadcom documentation naming
of/unittest: replace 'selftest' with 'unittest'
Documentation: rename of_selftest.txt to of_unittest.txt
Documentation: update the of_selftest.txt
dt: OF_UNITTEST make dependency broken
MAINTAINERS: Pantelis Antoniou device tree overlay maintainer
of: Add of_graph_get_port_by_id function
of: Add for_each_endpoint_of_node helper macro
of: Decrement refcount of previous endpoint in of_graph_get_next_endpoint
Add two new facts to of_get_next_child() documentation:
* of_get_next_child() returns NULL when there is not next child
* of_get_next_child() decrements the refcount of prev
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Rob Herring <robh@kernel.org>
Pull networking updates from David Miller:
1) Add BQL support to via-rhine, from Tino Reichardt.
2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
can support hw switch offloading. From Floria Fainelli.
3) Allow 'ip address' commands to initiate multicast group join/leave,
from Madhu Challa.
4) Many ipv4 FIB lookup optimizations from Alexander Duyck.
5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
Borkmann.
6) Remove the ugly compat support in ARP for ugly layers like ax25,
rose, etc. And use this to clean up the neigh layer, then use it to
implement MPLS support. All from Eric Biederman.
7) Support L3 forwarding offloading in switches, from Scott Feldman.
8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
up route lookups even further. From Alexander Duyck.
9) Many improvements and bug fixes to the rhashtable implementation,
from Herbert Xu and Thomas Graf. In particular, in the case where
an rhashtable user bulk adds a large number of items into an empty
table, we expand the table much more sanely.
10) Don't make the tcp_metrics hash table per-namespace, from Eric
Biederman.
11) Extend EBPF to access SKB fields, from Alexei Starovoitov.
12) Split out new connection request sockets so that they can be
established in the main hash table. Much less false sharing since
hash lookups go direct to the request sockets instead of having to
go first to the listener then to the request socks hashed
underneath. From Eric Dumazet.
13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.
14) Support stable privacy address generation for RFC7217 in IPV6. From
Hannes Frederic Sowa.
15) Hash network namespace into IP frag IDs, also from Hannes Frederic
Sowa.
16) Convert PTP get/set methods to use 64-bit time, from Richard
Cochran.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
fm10k: Bump driver version to 0.15.2
fm10k: corrected VF multicast update
fm10k: mbx_update_max_size does not drop all oversized messages
fm10k: reset head instead of calling update_max_size
fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
fm10k: update xcast mode before synchronizing multicast addresses
fm10k: start service timer on probe
fm10k: fix function header comment
fm10k: comment next_vf_mbx flow
fm10k: don't handle mailbox events in iov_event path and always process mailbox
fm10k: use separate workqueue for fm10k driver
fm10k: Set PF queues to unlimited bandwidth during virtualization
fm10k: expose tx_timeout_count as an ethtool stat
fm10k: only increment tx_timeout_count in Tx hang path
fm10k: remove extraneous "Reset interface" message
fm10k: separate PF only stats so that VF does not display them
fm10k: use hw->mac.max_queues for stats
fm10k: only show actual queues, not the maximum in hardware
fm10k: allow creation of VLAN on default vid
fm10k: fix unused warnings
...
Pull i2c updates from Wolfram Sang:
"Most notable:
- introducing the i2c_quirk infrastructure. Now, flaws of I2C
controllers can be described and the core will check if the flaws
collide with the messages to be sent
- wait_for_completion return type cleanup series
- new drivers for Digicolor, Netlogic XLP, Ingenic JZ4780
- updates to the I2C slave framework which include API changes. Its
only user was updated, too. Documentation was finally added
- changed dynamic bus numbering for the DT case. This could change
bus numbers for users. However, it fixes a collision where dynamic
and static busses request the same id.
- driver bugfixes, cleanups"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (52 commits)
i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller
of: Add vendor prefix 'netlogic'
i2c: davinci: use ICPFUNC to toggle I2C as gpio for bus recovery
i2c: davinci: use bus recovery infrastructure
i2c: change input parameter to i2c_adapter for prepare/unprepare_recovery
i2c: i2c-mux-gpio: remove error messages for probe deferrals
i2c: jz4780: Add i2c bus controller driver for Ingenic JZ4780
i2c: dln2: set the device tree node of the adapter
i2c: davinci: fixup wait_for_completion_timeout handling
i2c: mpc: Fix ISR return value
i2c: slave-eeprom: add more info when to increase the pointer
i2c: slave: add documentation for i2c-slave-eeprom
Documentation: i2c: describe the new slave mode
i2c: slave: rework the slave API
i2c: add support for the Digicolor I2C controller
i2c: busses with dynamic ids should start after fixed ids for DT
of: base: add function to get highest id of an alias stem
i2c: designware: Suppress error message if platform_get_irq() < 0
i2c: mpc: assign the correct prescaler from SVR
i2c: img-scb: fixup of wait_for_completion_timeout return handling
...
During the course of the overlay selftests some of them remain
applied. While this does not pose a real problem, make sure you track
them and destroy them at the end of the test.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The allocation size of device node path is off by one which drops the
'\0' terminator.
Signed-off-by: Ricky Liang <jcliang@chromium.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Provide a libfdt-based equivalent for of_device_is_big_endian(), suitable
for use in the early_init_* functions.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
SoC peripherals can come in several different flavors:
- little-endian: registers always need to be accessed in LE mode (so the
kernel should perform a swap if the CPU is running BE)
- big-endian: registers always need to be accessed in BE mode (so the
kernel should perform a swap if the CPU is running LE)
- native-endian: the bus will automatically swap accesses, so the kernel
should never swap
Introduce a function that checks an OF device node to see whether it
contains a "big-endian" or "native-endian" property. For the former case,
always return true. For the latter case, return true iff the kernel was
built for BE (implying that the BE MMIO accessors do not perform a swap).
Otherwise return false, assuming LE registers.
LE registers are assumed by default because most existing drivers (libahci,
serial8250, usb) always use readl/writel in the absence of instructions
to the contrary, so that will be our fallback.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Commit 51975db0b7 ("of/flattree: merge early_init_dt_scan_memory()
common code") consolidated some code from PowerPC (typically
big-endian), and ended-up adding a pr_debug() printing reg properties in
big-endian (DT native) format, not CPU endian.
This debug print suffers from two problems:
- we only print 4 "reg" values, while there could be more on typical
systems having multiple memory ranges
- we print these 4 "reg" values in FDT endianess, that is big-endian,
and these values could be confusing for little-endian configurations
Since we are already printing the base address and size of the memory
regions parsed by early_init_dt_scan_memory() later in a way that is
both endian correct, and takes into account arbitrary number of memory
banks, just remove that part of the debug print.
Suggested-by: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
If CONFIG_IRQ_DOMAIN=n:
drivers/of/irq.c: In function ‘of_irq_get’:
drivers/of/irq.c:406: error: implicit declaration of function ‘irq_find_host’
drivers/of/irq.c:406: warning: assignment makes pointer from integer without a cast
make[2]: *** [drivers/of/irq.o] Error 1
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Conflicts:
drivers/net/ethernet/mellanox/mlx4/cmd.c
net/core/fib_rules.c
net/ipv4/fib_frontend.c
The fib_rules.c and fib_frontend.c conflicts were locking adjustments
in 'net' overlapping addition and removal of code in 'net-next'.
The mlx4 conflict was a bug fix in 'net' happening in the same
place a constant was being replaced with a more suitable macro.
Signed-off-by: David S. Miller <davem@davemloft.net>
The previous commit, "of/unittest: early return from test skips tests"
exposed broken tests for the of_platform_unpopulate() function. The
problem was the populate and depopulate calls were not symmetrical like
they were intended to be, and unpopulate depends on the parent device to
have it's of_node pointer pointing to the parent device node. Fix these
bugs so that the test case works correctly.
In the process, the test_bus used as a container for the test devices
has been changed from a statically allocated struct device (which is
bad) to a properly allocated device with a .release() method (which is
good). This stops the test code from being a bad example of abusing the
device model.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Frank Rowand <frank.rowand@sonymobile.com>
Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Fix bugs pointed out by checkpatch: Mis-coding of two if statements
caused early return from function.
Number of tests completed increased from 102 to 107.
Number of tests failed increased from 0 to 2.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Fix warnings pointed out by checkpatch.
Checkpatch warns: externs should be avoided in .c files
Reducing pain for future maintainers - adding a comment so that anyone trying
to find where the extern data is created will be able to find it.
(grep will not find that location)
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Fix warnings pointed out by checkpatch.
No bug fixes, but reduce the number of checkpatch warnings so that future
problems will stand out better.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Fix bug pointed out by checkpatch.
Splitting string incorrectly removed a space between two words.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Fix warnings pointed out by checkpatch.
No bugs fixed, but the test code should be a good example of how to use
the devicetree API.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
of_get_mac_address() basically does the same thing thrice, every time with a
different property name, so it makes sense to factor out the repetitive code
into separate function. While at it, we can start using ETH_ALEN instead of the
bare number and drop unnecessary parens around the property length check.
The resulting ARM object file is 100 bytes less in size than before the patch.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The "sdc" node is missing the ranges property, it needs to be treated
as having an empty one otherwise translation fails for its children.
Fixes 746c9e9f92, "of/base: Fix PowerPC address parsing hack"
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Stable <stable@vger.kernel.org> # v3.18+
Currently OF_DYNAMIC and OF_OVERLAY are not visible to the user, and are
selected automatically only when needed.
Allow them to be enabled manually to improve device tree unit test
coverage.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The "sdc" node is missing the ranges property, it needs to be treated
as having an empty one otherwise translation fails for its children.
Fixes 746c9e9f92, "of/base: Fix PowerPC address parsing hack"
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Stable <stable@vger.kernel.org> # v3.18+
This patch just replace the string 'selftest' with 'unittest'
in OF unittest and data and binding file.
I have tested it successfully on ARM.
Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
If CONFIG_OF_UNITTEST=y then a kernel image make will always cause .version to
be incremented, even if there are not source changes. This is caused by
a lack of dependency tracking and checking for
drivers/of/unittest-data/testcases.dtb.o.
Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This series converts of_graph_get_next_endpoint to decrement the refcount of
the passed prev parameter. This allows to add a for_each_endpoint_of_node
helper macro to loop over all endpoints in a device tree node.
The of_graph_get_port_by_id function is added to retrieve a port by its known
port id (contained in the reg property) from the device tree.
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Merge tag 'of-graph-for-4.0' of git://git.pengutronix.de/git/pza/linux into for-next
Pull of-graph helpers from Philipp Zabel:
of: Add of-graph helpers to loop over endpoints and find ports by id
This series converts of_graph_get_next_endpoint to decrement the refcount of
the passed prev parameter. This allows to add a for_each_endpoint_of_node
helper macro to loop over all endpoints in a device tree node.
The of_graph_get_port_by_id function is added to retrieve a port by its known
port id (contained in the reg property) from the device tree.
Conflicts:
net/netfilter/nf_tables_core.c
The nf_tables_core.c conflict was resolved using a conflict resolution
from Stephen Rothwell as a guide.
Signed-off-by: David S. Miller <davem@davemloft.net>
Conflicts:
drivers/net/ethernet/emulex/benet/be_main.c
net/core/sysctl_net_core.c
net/ipv4/inet_diag.c
The be_main.c conflict resolution was really tricky. The conflict
hunks generated by GIT were very unhelpful, to say the least. It
split functions in half and moved them around, when the real actual
conflict only existed solely inside of one function, that being
be_map_pci_bars().
So instead, to resolve this, I checked out be_main.c from the top
of net-next, then I applied the be_main.c changes from 'net' since
the last time I merged. And this worked beautifully.
The inet_diag.c and sysctl_net_core.c conflicts were simple
overlapping changes, and were easily to resolve.
Signed-off-by: David S. Miller <davem@davemloft.net>
* pci/iommu:
of: Calculate device DMA masks based on DT dma-range size
arm: dma-mapping: limit IOMMU mapping size
PCI: Update DMA configuration from DT
of/pci: Add of_pci_dma_configure() to update DMA configuration
PCI: Add helper functions pci_get[put]_host_bridge_device()
of: Fix size when dma-range is not used
of: Move of_dma_configure() to device.c to help re-use
of: iommu: Add ptr to OF node arg to of_iommu_configure()
* pci/resource:
PCI: Fail pci_ioremap_bar() on unassigned resources
PCI: Show driver, BAR#, and resource on pci_ioremap_bar() failure
PCI: Mark invalid BARs as unassigned
PNP: Don't check for overlaps with unassigned PCI BARs
This reverts commit 2fa645cb27.
The assumption that at least 1 preferred console will be registered
when the stdout-path property is set is invalid, which can result
in _no_ consoles.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Commit 106937e8cc ("of: fix handling of '/' in options for
of_find_node_by_path()") caused a regression in OF handling of
stdout-path. While it fixes some cases which have '/' after the ':', it
breaks cases where there is more than one '/' *before* the ':'.
For example, it breaks this boot string
stdout-path = "/rdb/serial@f040ab00:115200";
So rather than doing sequentialized checks (first for '/', then for ':';
or vice versa), to get the correct behavior we need to check for the
first occurrence of either one of them.
It so happens that the handy strcspn() helper can do just that.
Fixes: 106937e8cc ("of: fix handling of '/' in options for of_find_node_by_path()")
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: stable@vger.kernel.org # 3.19
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
There were regressions seen with commit 106937e8cc ("of: fix handling
of '/' in options for of_find_node_by_path()"), where we couldn't handle
extra '/' before the ':'. Let's test for this now.
Confirmed that this test fails without the previous patch and passes
when patched. All other tests pass.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
The error code paths that require cleanup use a goto to jump to the
cleanup code and return an error code. However, the error code variable
res, which is initialized to -EINVAL when declared, is then overwritten
with the return value of of_parse_phandle_with_args(), and reused as the
return code from of_irq_parse_one(). This leads to an undetermined error
being returned instead of the expected -EINVAL value. Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: stable@vger.kernel.org # 3.13+
Signed-off-by: Rob Herring <robh@kernel.org>
I2C 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 <wsa+renesas@sang-engineering.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Calculate the dma_mask and coherent_dma_mask based on the dma-range values
set in DT for the device.
Limit the mask to lower of the default mask and mask calculated.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: Will Deacon <will.deacon@arm.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Export of_mdio_parse_addr() which allows parsing a given Ethernet PHY
node MDIO address, verify it is within the allowed range, and return
its value. This is going to be useful for the DSA code which needs to
deal with multiple layers of MDIO buses.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add testcase variants with '/' in the options string to test for
scan beyond end path name terminated by ':'.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Ensure proper handling of paths with appended options (after ':'),
where those options may contain a '/'.
Fixes: 7914a7c565 ("of: support passing console options with stdout-path")
Reported-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Cc: <stable@vger.kernel.org> # 3.19
Signed-off-by: Rob Herring <robh@kernel.org>
This patch fix the wrong expected value of of_property_match_string
in of_selftest_property_string.
Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Remove the duplicate of_changeset_init. In of_selftest_changeset
testcase, the "struct of_changeset chgset" is initialized twice,
but only once is enough. so, drop the first initializtion code.
Signed-off-by: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
The unittest fails to link if I2C or I2C_MUX is a loadable module:
drivers/built-in.o: In function `selftest_i2c_mux_remove':
unittest.c:(.text+0xb0ce4): undefined reference to `i2c_del_mux_adapter'
This changes the newly added IS_ENABLED() checks to use IS_BUILTIN()
instead, which evaluates to false if the other driver is a module.
Reported-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: d5e75500ca ("of: unitest: Add I2C overlay unit tests.")
Signed-off-by: Rob Herring <robh@kernel.org>
Commit 3e7f7626fd ("of/overlay: Do not generate duplicate nodes") removed
the only use of the 'grandchild' variable, which leads to the following build
warning:
drivers/of/overlay.c: In function 'of_overlay_apply_single_device_node':
drivers/of/overlay.c:89:31: warning: unused variable 'grandchild' [-Wunused-variable]
struct device_node *tchild, *grandchild;
^
Remove this unused variable.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Support for devicetree serial consoles via 'stdout-path' causes
bootconsoles to be disabled when the vt dummy console loads, since
there is no preferred console (the preferred console is not added
until the device is probed).
Ensure there is at least a preferred console, even if never matched.
Requires: "console: Fix console name size mismatch"
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Add of_pci_dma_configure() to allow updating the DMA configuration of the
PCI device using the configuration from DT of the parent of the root bridge
device. Use the newly added APIs pci_get/put_host_bridge_device() for
implementing this.
[bhelgaas: fold in fix for host bridges with no parent OF device]
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> (AMD Seattle)
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Grant Likely <grant.likely@linaro.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: Arnd Bergmann <arnd@arndb.de>
Fix the dma-range size when the DT attribute is missing, i.e., set size to
dev->coherent_dma_mask + 1 instead of dev->coherent_dma_mask. Also add
code to check invalid values of size configured in DT and log error.
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> (AMD Seattle)
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Grant Likely <grant.likely@linaro.org>
CC: Rob Herring <robh+dt@kernel.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: Arnd Bergmann <arnd@arndb.de>
Move of_dma_configure() to device.c so it can be re-used for PCI devices to
obtain DMA configuration from DT. Also add a second argument so that for
PCI, the DT node of root bus host bridge can be used to obtain the DMA
configuration for the slave PCI device.
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> (AMD Seattle)
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
CC: Joerg Roedel <joro@8bytes.org>
CC: Grant Likely <grant.likely@linaro.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: Arnd Bergmann <arnd@arndb.de>
of_iommu_configure() is called from of_dma_configure() to setup iommu ops
using DT property. This API is currently used for platform devices for
which DMA configuration (including IOMMU ops) may come from the device's
parent. To extend this functionality for PCI devices, this API needs to
take a parent node ptr as an argument instead of assuming device's parent.
This is needed since for PCI, the DMA configuration may be defined in the
DT node of the root bus bridge's parent device. Currently only dma-range
is used for PCI and IOMMU is not supported. Return error if the device is
PCI.
Add "parent" parameter (a struct device_node *) to of_iommu_configure().
Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> (AMD Seattle)
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rob Herring <robh+dt@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Grant Likely <grant.likely@linaro.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: Arnd Bergmann <arnd@arndb.de>
The overlay code uses IDRs but does not explicitly include the header
providing the interface, instead relying on an implicit inclusion. Make
the dependency explicit to avoid potential future build issues if the
implicit inclusion goes away.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
