02 Feb, 2018
1 commit
-
Pull ARM SoC driver updates from Arnd Bergmann:
"A number of new drivers get added this time, along with many
low-priority bugfixes. The most interesting changes by subsystem are:bus drivers:
- Updates to the Broadcom bus interface driver to support newer SoC
types
- The TI OMAP sysc driver now supports updated DT bindingsmemory controllers:
- A new driver for Tegra186 gets added
- A new driver for the ti-emif sram, to allow relocating
suspend/resume handlers thereSoC specific:
- A new driver for Qualcomm QMI, the interface to the modem on MSM
SoCs
- A new driver for power domains on the actions S700 SoC
- A driver for the Xilinx Zynq VCU logicoreIPreset controllers:
- A new driver for Amlogic Meson-AGX
- various bug fixestee subsystem:
- A new user interface got added to enable asynchronous communication
with the TEE supplicant.
- A new method of using user space memory for communication with the
TEE is added"* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (84 commits)
of: platform: fix OF node refcount leak
soc: fsl: guts: Add a NULL check for devm_kasprintf()
bus: ti-sysc: Fix smartreflex sysc mask
psci: add CPU_IDLE dependency
soc: xilinx: Fix Kconfig alignment
soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv
soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu
soc: bcm: brcmstb: Be multi-platform compatible
soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms
Revert "soc: brcmstb: Only register SoC device on STB platforms"
bus: omap: add MODULE_LICENSE tags
soc: brcmstb: Only register SoC device on STB platforms
tee: shm: Potential NULL dereference calling tee_shm_register()
soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver
dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver
soc: xilinx: Create folder structure for soc specific drivers
of: platform: populate /firmware/ node from of_platform_default_populate_init()
soc: samsung: Add SPDX license identifiers
soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()
tee: shm: don't put_page on null shm->pages
...
23 Jan, 2018
1 commit
-
We need to call of_node_put() for device nodes obtained with
of_find_node_by_path().Fixes: 3aa0582fdb82 ("of: platform: populate /firmware/ node from of_platform_default_populate_init()")
Reported-by: Loys Ollivier
Cc: Frank Rowand
Signed-off-by: Sudeep Holla
Acked-by: Rob Herring
Signed-off-by: Andy Gross
Signed-off-by: Arnd Bergmann
08 Jan, 2018
1 commit
-
Convert remaining DT files to use SPDX-License-Identifier tags.
Cc: Benjamin Herrenschmidt
Cc: Guennadi Liakhovetski
Cc: Paul Mackerras
Cc: Pantelis Antoniou
Reviewed-by: Frank Rowand
Reviewed-by: Philippe Ombredanne
Signed-off-by: Rob Herring
05 Jan, 2018
1 commit
-
Since "/firmware" does not have its own "compatible" property as it's
just collection of nodes representing firmware interface, it's sub-nodes
are not populated during system initialization.Currently different firmware drivers search the /firmware/ node and
populate the sub-node devices selectively. Instead we can populate
the /firmware/ node during init to avoid more drivers continuing to
populate the devices selectively.To generalize the solution this patch populates the /firmware/ node
explicitly from of_platform_default_populate_init().Cc: Arnd Bergmann
Cc: Rob Herring
Signed-off-by: Sudeep Holla
Acked-by: Rob Herring
Acked-by: Bjorn Andersson
Tested-by: Bjorn Andersson
Signed-off-by: Andy Gross
22 Oct, 2017
2 commits
-
The Qualcomm remote file system protocol is used by certain remoteprocs,
in particular the modem, to read and write persistent storage in
platforms where only the application CPU has physical storage access.The protocol is based on a set of QMI-encoded control-messages and a
shared memory buffer for exchaning the data. This driver implements the
latter, providing the user space service access to the carved out chunk
of memory.Acked-by: Rob Herring
Signed-off-by: Bjorn Andersson
Signed-off-by: Andy Gross -
By iterating over all /reserved-memory child nodes and match each one to
a list of compatibles that we want to treat specially, we can easily
extend the list of compatibles to handle - without having to resort to
of_platform_populate() that would create unnecessary platform_devices.Reviewed-by: Rob Herring
Signed-off-by: Bjorn Andersson
Signed-off-by: Andy Gross
25 Aug, 2017
1 commit
-
Use dedicated definition instead of plain -1 where it's appropriate.
No functional change intended.
Signed-off-by: Andy Shevchenko
Signed-off-by: Rob Herring
19 Jul, 2017
1 commit
-
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.Signed-off-by: Rob Herring
08 Jul, 2017
1 commit
-
Pull DeviceTree updates from Rob Herring:
- vsprintf format specifier %pOF for device_node's. This will enable us
to stop storing the full node names. Conversion of users will happen
next cycle.- Update documentation to point to DT specification instead of ePAPR.
- Split out graph and property functions to a separate file.
- New of-graph functions for ALSA
- Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
Itead, and BananaPi.- Improve dtx_diff utility filename printing.
* tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (32 commits)
of: document /sys/firmware/fdt
dt-bindings: Add RISC-V vendor prefix
vsprintf: Add %p extension "%pOF" for device tree
of: find_node_by_full_name rewrite to compare each level
of: use kbasename instead of open coding
dt-bindings: thermal: add file extension to brcm,ns-thermal
of: update ePAPR references to point to Devicetree Specification
scripts/dtc: dtx_diff - Show real file names in diff header
of: detect invalid phandle in overlay
of: be consistent in form of file mode
of: make __of_attach_node() static
of: address.c header comment typo
of: fdt.c header comment typo
of: make of_fdt_is_compatible() static
dt-bindings: display-timing.txt convert non-ascii characters to ascii
Documentation: remove overlay-notes reference to non-existent file
dt-bindings: usb: exynos-usb: Add missing required VDD properties
dt-bindings: Add vendor prefix for Linksys
MAINTAINERS: add device tree ABI documentation file
of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd
...
23 Jun, 2017
1 commit
-
Several places in DT code open code the equivalent of kbasename.
Replace them.The behavior for root nodes in node_name_cmp will be slightly different.
Instead of comparing "/", "" will be compared. The comparison will be
the same.Reviewed-by: Andy Shevchenko
Signed-off-by: Rob Herring
23 May, 2017
1 commit
-
of_platform_device_destroy is the counterpart to
of_platform_device_create which is a non-static function.After creating a platform device it might be neccessary
to destroy it to deal with -EPROBE_DEFER where a
repeated of_platform_device_create call would fail otherwise.Therefore also make of_platform_device_destroy globally visible.
Signed-off-by: Jan Glauber
Acked-by: Rob Herring
Signed-off-by: Ulf Hansson
10 May, 2017
1 commit
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Pull IOMMU updates from Joerg Roedel:
- code optimizations for the Intel VT-d driver
- ability to switch off a previously enabled Intel IOMMU
- support for 'struct iommu_device' for OMAP, Rockchip and Mediatek
IOMMUs- header optimizations for IOMMU core code headers and a few fixes that
became necessary in other parts of the kernel because of that- ACPI/IORT updates and fixes
- Exynos IOMMU optimizations
- updates for the IOMMU dma-api code to bring it closer to use per-cpu
iova caches- new command-line option to set default domain type allocated by the
iommu core code- another command line option to allow the Intel IOMMU switched off in
a tboot environment- ARM/SMMU: TLB sync optimisations for SMMUv2, Support for using an
IDENTITY domain in conjunction with DMA ops, Support for SMR masking,
Support for 16-bit ASIDs (was previously broken)- various other small fixes and improvements
* tag 'iommu-updates-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (63 commits)
soc/qbman: Move dma-mapping.h include to qman_priv.h
soc/qbman: Fix implicit header dependency now causing build fails
iommu: Remove trace-events include from iommu.h
iommu: Remove pci.h include from trace/events/iommu.h
arm: dma-mapping: Don't override dma_ops in arch_setup_dma_ops()
ACPI/IORT: Fix CONFIG_IOMMU_API dependency
iommu/vt-d: Don't print the failure message when booting non-kdump kernel
iommu: Move report_iommu_fault() to iommu.c
iommu: Include device.h in iommu.h
x86, iommu/vt-d: Add an option to disable Intel IOMMU force on
iommu/arm-smmu: Return IOVA in iova_to_phys when SMMU is bypassed
iommu/arm-smmu: Correct sid to mask
iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid()
iommu: Make iommu_bus_notifier return NOTIFY_DONE rather than error code
omap3isp: Remove iommu_group related code
iommu/omap: Add iommu-group support
iommu/omap: Make use of 'struct iommu_device'
iommu/omap: Store iommu_dev pointer in arch_data
iommu/omap: Move data structures to omap-iommu.h
iommu/omap: Drop legacy-style device support
...
20 Apr, 2017
2 commits
-
Configuring DMA ops at probe time will allow deferring device probe when
the IOMMU isn't available yet. The dma_configure for the device is
now called from the generic device_attach callback just before the
bus/driver probe is called. This way, configuring the DMA ops for the
device would be called at the same place for all bus_types, hence the
deferred probing mechanism should work for all buses as well.pci_bus_add_devices (platform/amba)(_device_create/driver_register)
| |
pci_bus_add_device (device_add/driver_register)
| |
device_attach device_initial_probe
| |
__device_attach_driver __device_attach_driver
|
driver_probe_device
|
really_probe
|
dma_configureSimilarly on the device/driver_unregister path __device_release_driver is
called which inturn calls dma_deconfigure.This patch changes the dma ops configuration to probe time for
both OF and ACPI based platform/amba/pci bus devices.Tested-by: Marek Szyprowski
Tested-by: Hanjun Guo
Reviewed-by: Robin Murphy
Acked-by: Rob Herring
Acked-by: Bjorn Helgaas (drivers/pci part)
Acked-by: Rafael J. Wysocki
Signed-off-by: Sricharan R
Signed-off-by: Joerg Roedel -
As part of moving DMA initializing to probe time the
of_dma_deconfigure() function will need to be called from different
source files. Make it public and move it to drivers/of/device.c where
the of_dma_configure() function is.Tested-by: Marek Szyprowski
Reviewed-by: Robin Murphy
Acked-by: Rob Herring
Signed-off-by: Laurent Pinchart
Signed-off-by: Joerg Roedel
07 Mar, 2017
1 commit
-
First slice of drm-misc-next for 4.12:
Core/subsystem-wide:
- link status core patch from Manasi, for signalling link train fail
to userspace. I also had the i915 patch in here, but that had a
small buglet in our CI, so reverted.
- more debugfs_remove removal from Noralf, almost there now (Noralf
said he'll try to follow up with the stragglers).
- drm todo moved into kerneldoc, for better visibility (see
Documentation/gpu/todo.rst), lots of starter tasks in there.
- devm_ of helpers + use it in sti (from Ben Gaignard, acked by Rob
Herring)
- extended framebuffer fbdev support (for fbdev flipping), and vblank
wait ioctl fbdev support (Maxime Ripard)
- misc small things all over, as usual
- add vblank callbacks to drm_crtc_funcs, plus make lots of good use
of this to simplify drivers (Shawn Guo)
- new atomic iterator macros to unconfuse old vs. new stateSmall drivers:
- vc4 improvements from Eric
- vc4 kerneldocs (Eric)!
- tons of improvements for dw-mipi-dsi in rockchip from John Keeping
and Chris Zhong.
- MAINTAINERS entries for drivers managed in drm-misc. It's not yet
official, still an experiment, but definitely not complete fail and
better to avoid confusion. We kinda screwed that up with drm-misc a
bit when we started committers last year.
- qxl atomic conversion (Gabriel Krisman)
- bunch of virtual driver polish (qxl, virgl, ...)
- misc tiny patches all overThis is the first time we've done the same merge-window blackout for
drm-misc as we've done for drm-intel for ages, hence why we have a
_lot_ of stuff queued already. But it's still only half of drm-intel
(room to grow!), and the drivers in drm-misc experiment seems to work
at least insofar as that you also get lots of driver updates here
alredy.* tag 'drm-misc-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc: (141 commits)
drm/vc4: Fix OOPSes from trying to cache a partially constructed BO.
drm/vc4: Fulfill user BO creation requests from the kernel BO cache.
Revert "drm/i915: Implement Link Rate fallback on Link training failure"
drm/fb-helper: implement ioctl FBIO_WAITFORVSYNC
drm: Update drm_fbdev_cma_init documentation
drm/rockchip/dsi: add dw-mipi power domain support
drm/rockchip/dsi: fix insufficient bandwidth of some panel
dt-bindings: add power domain node for dw-mipi-rockchip
drm/rockchip/dsi: remove mode_valid function
drm/rockchip/dsi: dw-mipi: correct the coding style
drm/rockchip/dsi: dw-mipi: support RK3399 mipi dsi
dt-bindings: add rk3399 support for dw-mipi-rockchip
drm/rockchip: dw-mipi-dsi: add reset control
drm/rockchip: dw-mipi-dsi: support non-burst modes
drm/rockchip: dw-mipi-dsi: defer probe if panel is not loaded
drm/rockchip: vop: test for P{H,V}SYNC
drm/rockchip: dw-mipi-dsi: use positive check for N{H, V}SYNC
drm/rockchip: dw-mipi-dsi: use specific poll helper
drm/rockchip: dw-mipi-dsi: improve PLL configuration
drm/rockchip: dw-mipi-dsi: properly configure PHY timing
...
28 Feb, 2017
1 commit
-
Lots of calls to of_platform_populate() are not unbalanced by a call
to of_platform_depopulate(). This create issues while drivers are
bind/unbind.In way to solve those issues is to add devm_of_platform_populate()
which will call of_platform_depopulate() when the device is unbound
from the bus.Signed-off-by: Benjamin Gaignard
Acked-by: Rob Herring
Signed-off-by: Daniel Vetter
Link: http://patchwork.freedesktop.org/patch/msgid/1487952874-23635-2-git-send-email-benjamin.gaignard@linaro.org
09 Feb, 2017
1 commit
-
of_device_make_bus_id() was changed to non-static by commit c66012253800
("of/device: Make of_device_make_bus_id() usable by other code") more than
6 years ago, but there are no users of it outside of platform.c. Make the
function static again.Signed-off-by: Frank Rowand
Signed-off-by: Rob Herring
15 Nov, 2016
2 commits
-
Add comment clarifying that of_find_device_by_node() takes a reference
to the embedded struct device which needs to be dropped after use.Note that most current users fail to do so.
Signed-off-by: Johan Hovold
Signed-off-by: Rob Herring -
Update the comment to of_platform_device_destroy() to reflect that it no
longer returns a status value.Fixes: 75f353b61342 ("of/platform: Fix of_platform_device_destroy...")
Signed-off-by: Johan Hovold
Signed-off-by: Rob Herring
16 Oct, 2016
1 commit
-
Pull MIPS updates from Ralf Baechle:
"This is the main MIPS pull request for 4.9:MIPS core arch code:
- traps: 64bit kernels should read CP0_EBase 64bit
- traps: Convert ebase to KSEG0
- c-r4k: Drop bc_wback_inv() from icache flush
- c-r4k: Split user/kernel flush_icache_range()
- cacheflush: Use __flush_icache_user_range()
- uprobes: Flush icache via kernel address
- KVM: Use __local_flush_icache_user_range()
- c-r4k: Fix flush_icache_range() for EVA
- Fix -mabi=64 build of vdso.lds
- VDSO: Drop duplicated -I*/-E* aflags
- tracing: move insn_has_delay_slot to a shared header
- tracing: disable uprobe/kprobe on compact branch instructions
- ptrace: Fix regs_return_value for kernel context
- Squash lines for simple wrapper functions
- Move identification of VP(E) into proc.c from smp-mt.c
- Add definitions of SYNC barrierstype values
- traps: Ensure full EBase is written
- tlb-r4k: If there are wired entries, don't use TLBINVF
- Sanitise coherentio semantics
- dma-default: Don't check hw_coherentio if device is non-coherent
- Support per-device DMA coherence
- Adjust MIPS64 CAC_BASE to reflect Config.K0
- Support generating Flattened Image Trees (.itb)
- generic: Introduce generic DT-based board support
- generic: Convert SEAD-3 to a generic board
- Enable hardened usercopy
- Don't specify STACKPROTECTOR in defconfigsOcteon:
- Delete dead code and files across the platform.
- Change to use all memory into use by default.
- Rename upper case variables in setup code to lowercase.
- Delete legacy hack for broken bootloaders.
- Leave maintaining the link state to the actual ethernet/PHY drivers.
- Add DTS for D-Link DSR-500N.
- Fix PCI interrupt routing on D-Link DSR-500N.Pistachio:
- Remove ANDROID_TIMED_OUTPUT from defconfigTX39xx:
- Move GPIO setup from .mem_setup() to .arch_init()
- Convert to Common Clock FrameworkTX49xx:
- Move GPIO setup from .mem_setup() to .arch_init()
- Convert to Common Clock Frameworktxx9wdt:
- Add missing clock (un)prepare calls for CCFBMIPS:
- Add PW, GPIO SDHCI and NAND device node names
- Support APPENDED_DTB
- Add missing bcm97435svmb to DT_NONE
- Rename bcm96358nb4ser to bcm6358-neufbox4-sercom
- Add DT examples for BCM63268, BCM3368 and BCM6362
- Add support for BCM3368 and BCM6362PCI
- Reduce stack frame usage
- Use struct list_head lists
- Support for CONFIG_PCI_DOMAINS_GENERIC
- Make pcibios_set_cache_line_size an initcall
- Inline pcibios_assign_all_busses
- Split pci.c into pci.c & pci-legacy.c
- Introduce CONFIG_PCI_DRIVERS_LEGACY
- Support generic driversCPC
- Convert bare 'unsigned' to 'unsigned int'
- Avoid lock when MIPS CM >= 3 is presentGIC:
- Delete unused file smp-gic.cmt7620:
- Delete unnecessary assignment for the field "owner" from PCIBCM63xx:
- Let clk_disable() return immediately if clk is NULLpm-cps:
- Change FSB workaround to CPU blacklist
- Update comments on barrier instructions
- Use MIPS standard lightweight ordering barrier
- Use MIPS standard completion barrier
- Remove selection of sync types
- Add MIPSr6 CPU support
- Support CM3 changes to Coherence Enable RegisterSMP:
- Wrap call to mips_cpc_lock_other in mips_cm_lock_other
- Introduce mechanism for freeing and allocating IPIscpuidle:
- cpuidle-cps: Enable use with MIPSr6 CPUs.SEAD3:
- Rewrite to use DT and generic kernel feature.USB:
- host: ehci-sead3: Remove SEAD-3 EHCI codeFBDEV:
- cobalt_lcdfb: Drop SEAD3 supportdt-bindings:
- Document a binding for simple ASCII LCDsauxdisplay:
- img-ascii-lcd: driver for simple ASCII LCD displaysirqchip i8259:
- i8259: Add domain before mapping parent irq
- i8259: Allow platforms to override poll function
- i8259: Remove unused i8259A_irq_pendingMalta:
- Rewrite to use DTof/platform:
- Probe "isa" busses by defaultCM:
- Print CM error reports upon bus errorsModule:
- Migrate exception table users off module.h and onto extable.h
- Make various drivers explicitly non-modular:
- Audit and remove any unnecessary uses of module.hmailmap:
- Canonicalize to Qais' current email address.Documentation:
- MIPS supports HAVE_REGS_AND_STACK_ACCESS_APILoongson1C:
- Add CPU support for Loongson1C
- Add board support
- Add defconfig
- Add RTC support for Loongson1C boardAll this except one Documentation fix has sat in linux-next and has
survived Imagination's automated build test system"* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (127 commits)
Documentation: MIPS supports HAVE_REGS_AND_STACK_ACCESS_API
MIPS: ptrace: Fix regs_return_value for kernel context
MIPS: VDSO: Drop duplicated -I*/-E* aflags
MIPS: Fix -mabi=64 build of vdso.lds
MIPS: Enable hardened usercopy
MIPS: generic: Convert SEAD-3 to a generic board
MIPS: generic: Introduce generic DT-based board support
MIPS: Support generating Flattened Image Trees (.itb)
MIPS: Adjust MIPS64 CAC_BASE to reflect Config.K0
MIPS: Print CM error reports upon bus errors
MIPS: Support per-device DMA coherence
MIPS: dma-default: Don't check hw_coherentio if device is non-coherent
MIPS: Sanitise coherentio semantics
MIPS: PCI: Support generic drivers
MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY
MIPS: PCI: Split pci.c into pci.c & pci-legacy.c
MIPS: PCI: Inline pcibios_assign_all_busses
MIPS: PCI: Make pcibios_set_cache_line_size an initcall
MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC
MIPS: PCI: Use struct list_head lists
...
06 Oct, 2016
1 commit
-
Since commit 44a7185c2ae6 ("of/platform: Add common method to populate
default bus") platforms calling of_platform_bus_probe from an initcall
is either a rather unsafe race with of_platform_default_populate_init or
a no-op. The MIPS Malta board needs to probe devices under an ISA bus,
which we do support in the of_busses array but until now haven't
included in of_default_bus_match_table.Add an "isa" entry to of_default_bus_match_table such that we can just
accept use of of_platform_default_populate_init & remove the
Malta-specific match table in a later patch.Signed-off-by: Paul Burton
Acked-by: Rob Herring
Cc: Frank Rowand
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14275/
Signed-off-by: Ralf Baechle
15 Sep, 2016
1 commit
-
Whilst we're some of the way towards a universal firmware property
interface, drivers which deal with both OF and ACPI probing end up
having to do things like this:dev->of_node ? &dev->of_node->fwnode : dev->fwnode
This seems unnecessary, when the OF code could instead simply fill in
the device's fwnode when binding the of_node, and let the drivers use
dev->fwnode either way. Let's give it a go and see what falls out.Signed-off-by: Robin Murphy
Signed-off-by: Rob Herring
13 Aug, 2016
1 commit
-
With the commit 44a7185c2ae6 ("of/platform: Add common method to
populate default bus"), a default function is introduced to populate
the default bus and this function is invoked at the arch_initcall_sync
level. But a lot of ppc boards use machine_device_initcall() to
populate the default bus. This means that the default populate function
has higher priority and would override the arch specific population of
the bus. The side effect is that some arch specific bus are not probed,
then cause various malfunction due to the miss of some devices. Since
it is very possible to introduce bugs if we simply change the initcall
level for all these boards(about 30+). This just disable this default
function for all the ppc boards.Signed-off-by: Kevin Hao
Signed-off-by: Rob Herring
06 Aug, 2016
1 commit
-
Instead of a ramoops-specific node, use a child node of /reserved-memory.
This requires that of_platform_device_create() be explicitly called
for the node, though, since "/reserved-memory" does not have its own
"compatible" property.Suggested-by: Rob Herring
Signed-off-by: Kees Cook
Acked-by: Rob Herring
19 Jul, 2016
1 commit
-
Clean-up all the DT printk functions to use common pr_fmt prefix.
Some print statements such as kmalloc errors were redundant, so just
drop those.Cc: Frank Rowand
Cc: Pantelis Antoniou
Reviewed-by: Frank Rowand
Signed-off-by: Rob Herring
24 Jun, 2016
2 commits
-
This reverts commit b80443c2211c7daaabd20fbbe9e7beb3fa3408e0.
After covering to use helper of_platform_default_populate() to populate
the default bus, no need to export of_default_bus_match_table anymore.Reviewed-by: Masahiro Yamada
Cc: Masahiro Yamada
Cc: Rob Herring
Cc: Frank Rowand
Cc: Grant Likely
Signed-off-by: Kefeng Wang
Signed-off-by: Rob Herring -
The arch code calls of_platform_populate() with default match table
when it wants to populate default bus.This patch introduce a new of_platform_default_populate_init() and make it
arch_initcall_sync(it should be later than some iommu configration, eg,
of_iommu_init() and swiotlb_late_init in arm64), then we can finish above
job in common method.In order to avoid the default bus being populated twice, simply checking
the flag of bus node whether has be set OF_POPULATED_BUS or not.After that, we can safely remove the caller in arch code.
Btw, add debug print in of_platform_populate(), and use __func__ to
print function's name of of_platform_bus_create().Cc: Rob Herring
Cc: Frank Rowand
Cc: Grant Likely
Signed-off-by: Kefeng Wang
Signed-off-by: Rob Herring
15 Apr, 2016
1 commit
-
We currently try to match of_dev_auxdata based on compatible,
IO address, and device name. But in some cases we have multiple
instances of drivers that can use the same auxdata.Let's add an additional secondary lookup for generic compatible
match for auxdata if no device specific match is found. This does
not change the existing matching, and still allows adding device
specific auxdata.This simplifies things as specifying the IO address and device
name is prone errors as it requires maintaining an in kernel
database for each SoC.To specify a generic match, all that is needed is to add a
OF_DEV_AUXDATA entry with no device instance specified:OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
As the auxdata is already initialized only for the booted SoC,
there's not much of a chance of getting things wrong.Let's also fix two checkpatch warnings while at it to add a
space before parenthesis in the for loop, and remove a comparison
to NULL by using !auxdata->compatible.Acked-by: Rob Herring
Signed-off-by: Tony Lindgren
05 Jan, 2016
1 commit
-
Currently, drivers/bus/uniphier-system-bus.c is kept from being a
module due to the unresolved reference to of_default_bus_match_table.Refer to commit 326ea45aa827 ("bus: uniphier: allow only built-in
driver").Signed-off-by: Masahiro Yamada
Signed-off-by: Rob Herring
22 Oct, 2015
1 commit
-
for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr)://
@@
local idexpression n;
expression root,e;
@@for_each_child_of_node(root,n) {
...
(
of_node_put(n);
|
e = n
|
+ of_node_put(n);
? break;
)
...
}
... when != n
//Signed-off-by: Julia Lawall
Signed-off-by: Rob Herring
02 Sep, 2015
1 commit
-
Pull devicetree updates from Rob Herring:
- added Frank Rowand as DT maintainer in preparation for Grant's
retirement.
- generic MSI binding documentation and a few other minor doc updates
- fix long standing issue with DT platorm device unregistration
- fix loop forever bug in of_find_matching_node_by_address()* tag 'devicetree-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
MAINTAINERS: Add Frank Rowand as DT maintainer
mtd: nand: pxa3xx: add optional dma for pxa architecture
Documentation: DT: cpsw: document missing compatible
Docs: dt: add generic MSI bindings
drivercore: Fix unregistration path of platform devices
of/address: Don't loop forever in of_find_matching_node_by_address().
of: Add vendor prefix for JEDEC Solid State Technology Association
of/platform: add function to populate default bus
of: Add vendor prefix for Sharp Corporation
26 Aug, 2015
1 commit
-
When a default bus like the simple-bus should be used someone had to
call of_platform_populate() with the default match table. This match
table was not exported, so it is impossible for code build as a module
to use this. Instead of exporting of_default_bus_match_table, add a new
function which uses this default match table and populates the bus.Signed-off-by: Hauke Mehrtens
Signed-off-by: Rob Herring
30 Jul, 2015
1 commit
-
As for PCI, we're able to populate the msi_domain field at probe time,
provided that the device tree has an "msi-parent" property.Signed-off-by: Marc Zyngier
Cc:
Cc: Yijing Wang
Cc: Ma Jun
Cc: Lorenzo Pieralisi
Cc: Duc Dang
Cc: Hanjun Guo
Cc: Bjorn Helgaas
Cc: Jiang Liu
Cc: Jason Cooper
Link: http://lkml.kernel.org/r/1438091186-10244-9-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner
11 May, 2015
1 commit
-
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
Acked-by: Lee Jones
Acked-by: Antoine Tenart
Acked-by: Alexandre Belloni
Cc: Arnd Bergmann
Cc: Devicetree
Cc: Rob Herring
Cc: Benjamin Herrenschmidt
Cc: Grant Likely
Cc: Pawel Moll
Cc: Mark Rutland
Cc: Ian Campbell
Cc: Kumar Gala
Signed-off-by: Linus Walleij
04 Mar, 2015
2 commits
-
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 (AMD Seattle)
Signed-off-by: Murali Karicheri
Signed-off-by: Bjorn Helgaas
Reviewed-by: Catalin Marinas
Acked-by: Will Deacon
Acked-by: Rob Herring
CC: Joerg Roedel
CC: Grant Likely
CC: Russell King
CC: Arnd Bergmann -
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 (AMD Seattle)
Signed-off-by: Murali Karicheri
Signed-off-by: Bjorn Helgaas
Reviewed-by: Catalin Marinas
Acked-by: Rob Herring
Acked-by: Will Deacon
CC: Joerg Roedel
CC: Grant Likely
CC: Russell King
CC: Arnd Bergmann
18 Feb, 2015
1 commit
-
Pull ARM SoC driver updates from Olof Johansson:
"These are changes for drivers that are intimately tied to some SoC and
for some reason could not get merged through the respective subsystem
maintainer tree.This time around, much of this is for at91, with the bulk of it being
syscon and udc drivers.Also, there's:
- coupled cpuidle support for Samsung Exynos4210
- Renesas 73A0 common-clk work
- of/platform changes to tear down DMA mappings on device destruction
- a few updates to the TI Keystone knav code"* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (26 commits)
cpuidle: exynos: add coupled cpuidle support for exynos4210
ARM: EXYNOS: apply S5P_CENTRAL_SEQ_OPTION fix only when necessary
soc: ti: knav_qmss_queue: change knav_range_setup_acc_irq to static
soc: ti: knav_qmss_queue: makefile tweak to build as dynamic module
pcmcia: at91_cf: depend on !ARCH_MULTIPLATFORM
soc: ti: knav_qmss_queue: export API calls for use by user driver
of/platform: teardown DMA mappings on device destruction
usb: gadget: at91_udc: Allocate udc instance
usb: gadget: at91_udc: Update DT binding documentation
usb: gadget: at91_udc: Rework for multi-platform kernel support
usb: gadget: at91_udc: Simplify probe and remove functions
usb: gadget: at91_udc: Remove non-DT handling code
usb: gadget: at91_udc: Document DT clocks and clock-names property
usb: gadget: at91_udc: Drop uclk clock
usb: gadget: at91_udc: Fix clock names
mfd: syscon: Add Atmel SMC binding doc
mfd: syscon: Add atmel-smc registers definition
mfd: syscon: Add Atmel Matrix bus DT binding documentation
mfd: syscon: Add atmel-matrix registers definition
clk: shmobile: fix sparse NULL pointer warning
...
22 Jan, 2015
2 commits
-
When using overlays with drivers calling of_populate the notifier
will try to create the device twice. Using the populated bit
before proceeding protects against this.Signed-off-by: Pantelis Antoniou
Signed-off-by: Grant Likely -
Now that we can create and attach to IOMMU domains via of_dma_configure,
make sure we give the architecture a chance to tear them down when a
platform or amba device is destroyed.Acked-by: Rob Herring
Reported-by: Laurent Pinchart
Signed-off-by: Will Deacon
Signed-off-by: Olof Johansson
14 Jan, 2015
1 commit
-
fix the dev_dbg to display the offset which is the calculated
dma_pfn_offset value and set later in the code.Signed-off-by: Murali Karicheri
Signed-off-by: Rob Herring