| Commit message (Collapse) | Author | Age |
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CONFIG_REGULATOR_AB8500_DEBUG is always not defined.
ab8500_regulator_debug_init() is not called at all now,
ab8500_regulator_debug_exit() simply return 0, thus remove them.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A quiet release, more bug fixes than anything else. A few things do
stand out though:
- updates to several drivers to move towards the standard GPIO chip
select handling in the core.
- DMA support for the SH MSIOF driver.
- support for Rockchip SPI controllers (their first mainline
submission)"
* tag 'spi-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (64 commits)
spi: davinci: use spi_device.cs_gpio to store gpio cs per spi device
spi: davinci: add support to configure gpio cs through dt
spi/pl022: Explicitly truncate large bitmask
spi/atmel: Fix pointer to int conversion warnings on 64 bit builds
spi: davinci: fix to support more than 2 chip selects
spi: topcliff-pch: don't hardcode PCI slot to get DMA device
spi: orion: fix incorrect handling of cell-index DT property
spi: orion: Fix error return code in orion_spi_probe()
spi/rockchip: fix error return code in rockchip_spi_probe()
spi/rockchip: remove redundant dev_err call in rockchip_spi_probe()
spi/rockchip: remove duplicated include from spi-rockchip.c
ARM: dts: fix the chip select gpios definition in the SPI nodes
spi: s3c64xx: Update binding documentation
spi: s3c64xx: use the generic SPI "cs-gpios" property
spi: s3c64xx: Revert "spi: s3c64xx: Added provision for dedicated cs pin"
spi: atmel: Use dmaengine_prep_slave_sg() API
spi: topcliff-pch: Update error messages for dmaengine_prep_slave_sg() API
spi: sh-msiof: Use correct device for DMA mapping with IOMMU
spi: sh-msiof: Handle dmaengine_prep_slave_single() failures gracefully
spi: rspi: Handle dmaengine_prep_slave_sg() failures gracefully
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'spi/topic/topcliff-pch' into spi-next
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Linux 3.16-rc3
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Add DMA support to the MSIOF driver using platform data.
As MSIOF DMA is limited to 32-bit words (requiring byte/wordswapping for
smaller wordsizes), and the group length is limited to 256 words, DMA is
performed on two fixed pages, allocated and mapped at driver initialization
time.
Performance figures (in Mbps) on r8a7791/koelsch at different SPI clock
frequencies for 1024-byte and 4096-byte transfers:
1024 bytes 4096 bytes
- 3.25 MHz: PIO 2.1, DMA 2.6 | PIO 2.8, DMA 3.1
- 6.5 MHz: PIO 3.2, DMA 4.4 | PIO 5.0, DMA 5.9
- 13 MHz: PIO 4.2, DMA 6.6 | PIO 8.2, DMA 10.7
- 26 MHz: PIO 5.9, DMA 10.4 | PIO 12.4, DMA 18.4
Note that DMA is only faster than PIO for transfers that exceed the FIFO
size (typically 64 words / 256 bytes).
Also note that large transfers (larger than the group length for DMA, or
larger than the FIFO size for PIO), should use cs-gpio (with the
appropriate pinmux setup), as the hardware chipselect will be deasserted in
between chunks.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"This time with:
- support for the generic PCI device alias code in x86 IOMMU drivers
- a new sysfs interface for IOMMUs
- preparations for hotplug support in the Intel IOMMU driver
- change the AMD IOMMUv2 driver to not hold references to core data
structures like mm_struct or task_struct. Rely on mmu_notifers
instead.
- removal of the OMAP IOVMM interface, all users of it are converted
to DMA-API now
- make the struct iommu_ops const everywhere
- initial PCI support for the ARM SMMU driver
- there is now a generic device tree binding documented for ARM
IOMMUs
- various fixes and cleanups all over the place
Also included are some changes to the OMAP code, which are acked by
the maintainer"
* tag 'iommu-updates-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (67 commits)
devicetree: Add generic IOMMU device tree bindings
iommu/vt-d: Fix race setting IRQ CPU affinity while freeing IRQ
iommu/amd: Fix 2 typos in comments
iommu/amd: Fix device_state reference counting
iommu/amd: Remove change_pte mmu_notifier call-back
iommu/amd: Don't set pasid_state->mm to NULL in unbind_pasid
iommu/exynos: Select ARM_DMA_USE_IOMMU
iommu/vt-d: Exclude devices using RMRRs from IOMMU API domains
iommu/omap: Remove platform data da_start and da_end fields
ARM: omap: Don't set iommu pdata da_start and da_end fields
iommu/omap: Remove virtual memory manager
iommu/vt-d: Fix issue in computing domain's iommu_snooping flag
iommu/vt-d: Introduce helper function iova_size() to improve code readability
iommu/vt-d: Introduce helper domain_pfn_within_range() to simplify code
iommu/vt-d: Simplify intel_unmap_sg() and kill duplicated code
iommu/vt-d: Change iommu_enable/disable_translation to return void
iommu/vt-d: Simplify include/linux/dmar.h
iommu/vt-d: Avoid freeing virtual machine domain in free_dmar_iommu()
iommu/vt-d: Fix possible invalid memory access caused by free_dmar_iommu()
iommu/vt-d: Allocate dynamic domain id for virtual domains only
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'arm/exynos' and 'core' into next
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The fields were used by the now gone omap-iovmm driver. They're not used
anymore, remove them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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The OMAP3 ISP driver was the only user of the OMAP IOVMM API. Now that
is has been ported to the DMA API, remove the unused virtual memory
manager.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Any kernel source registering the invalid PPR calback may include the header file with PPR fault flags macros definitions.
Thus we move them to include/linux/amd-iommu.h
Signed-off-by: Alexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Simplify include/linux/dmar.h a bit based on the fact that
both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP select CONFIG_DMAR_TABLE.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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0-day kernel build testing reports:
arch/x86/kvm/x86.o: In function `iommu_device_destroy':
>> (.text+0x7a0a): multiple definition of `iommu_device_destroy'
arch/x86/kvm/../../../virt/kvm/vfio.o:vfio.c:(.text+0x490): first defined here
arch/x86/kvm/x86.o: In function `iommu_device_link':
>> (.text+0x7a15): multiple definition of `iommu_device_link'
arch/x86/kvm/../../../virt/kvm/vfio.o:vfio.c:(.text+0x49b): first defined here
arch/x86/kvm/x86.o: In function `iommu_device_unlink':
>> (.text+0x7a25): multiple definition of `iommu_device_unlink'
arch/x86/kvm/../../../virt/kvm/vfio.o:vfio.c:(.text+0x4ab): first defined here
arch/x86/kvm/x86.o: In function `iommu_device_create':
>> (.text+0x79f8): multiple definition of `iommu_device_create'
arch/x86/kvm/../../../virt/kvm/vfio.o:vfio.c:(.text+0x47e): first defined here
These are due to failing to define the stubs as static inline. Fix.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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This structure is read-only data and should never be modified.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Register our DRHD IOMMUs, cross link devices, and provide a base set
of attributes for the IOMMU. Note that IRQ remapping support parses
the DMAR table very early in boot, well before the iommu_class can
reasonably be setup, so our registration is split between
intel_iommu_init(), which occurs later, and alloc_iommu(), which
typically occurs much earlier, but may happen at any time later
with IOMMU hot-add support.
On a typical desktop system, this provides the following (pruned):
$ find /sys | grep dmar
/sys/devices/virtual/iommu/dmar0
/sys/devices/virtual/iommu/dmar0/devices
/sys/devices/virtual/iommu/dmar0/devices/0000:00:02.0
/sys/devices/virtual/iommu/dmar0/intel-iommu
/sys/devices/virtual/iommu/dmar0/intel-iommu/cap
/sys/devices/virtual/iommu/dmar0/intel-iommu/ecap
/sys/devices/virtual/iommu/dmar0/intel-iommu/address
/sys/devices/virtual/iommu/dmar0/intel-iommu/version
/sys/devices/virtual/iommu/dmar1
/sys/devices/virtual/iommu/dmar1/devices
/sys/devices/virtual/iommu/dmar1/devices/0000:00:00.0
/sys/devices/virtual/iommu/dmar1/devices/0000:00:01.0
/sys/devices/virtual/iommu/dmar1/devices/0000:00:16.0
/sys/devices/virtual/iommu/dmar1/devices/0000:00:1a.0
/sys/devices/virtual/iommu/dmar1/devices/0000:00:1b.0
/sys/devices/virtual/iommu/dmar1/devices/0000:00:1c.0
...
/sys/devices/virtual/iommu/dmar1/intel-iommu
/sys/devices/virtual/iommu/dmar1/intel-iommu/cap
/sys/devices/virtual/iommu/dmar1/intel-iommu/ecap
/sys/devices/virtual/iommu/dmar1/intel-iommu/address
/sys/devices/virtual/iommu/dmar1/intel-iommu/version
/sys/class/iommu/dmar0
/sys/class/iommu/dmar1
(devices also link back to the dmar units)
This makes address, version, capabilities, and extended capabilities
available, just like printed on boot. I've tried not to duplicate
data that can be found in the DMAR table, with the exception of the
address, which provides an easy way to associate the sysfs device with
a DRHD entry in the DMAR. It's tempting to add scopes and RMRR data
here, but the full DMAR table is already exposed under /sys/firmware/
and therefore already provides a way for userspace to learn such
details.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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IOMMUs currently have no common representation to userspace, most
seem to have no representation at all aside from a few printks
on bootup. There are however features of IOMMUs that are useful
to know about. For instance the IOMMU might support superpages,
making use of processor large/huge pages more important in a device
assignment scenario. It's also useful to create cross links between
devices and IOMMU hardware units, so that users might be able to
load balance their devices to avoid thrashing a single hardware unit.
This patch adds a device create and destroy interface as well as
device linking, making it very lightweight for an IOMMU driver to add
basic support. IOMMU drivers can provide additional attributes
automatically by using an attribute_group.
The attributes exposed are expected to be relatively device specific,
the means to retrieve them certainly are, so there are currently no
common attributes for the new class created here.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Currently each IOMMU driver that supports IOMMU groups has its own
code for discovering the base device used in grouping. This code
is generally not specific to the IOMMU hardware, but to the bus of
the devices managed by the IOMMU. We can therefore create a common
interface for supporting devices on different buses.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"Notable changes:
- Heiko Schocher provided a driver for TI TMP103.
- Kamil Debski provided a driver for pwm-controlled fans.
- Neelesh Gupta provided a driver for power, fan rpm, voltage and
temperature reporting on powerpc/powernv systems.
- Scott Kanowitz provided a driver supporting Lattice's POWR1220
power manager IC.
- Richard Zhu provided a pmbus front-end driver for TPS40422.
- Frans Klaver added support for TMP112 to the lm75 driver.
- Johannes Pointner added support for EPCOS B57330V2103 to the
ntc_thermistor driver.
- Guenter Roeck added support for TMP441 and TMP442 to the tmp421
driver.
- Axel Lin converted several drivers to the new hwmon API (36 of
them, if I counted correctly), and cleaned up many of the drivers
along the way.
There are also a number of patches fixing bugs discovered while
testing Axel's changes"
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (88 commits)
hwmon: (g762) Use of_property_read_u32 at appropriate place
hwmon: (sis5595) Prevent overflow problem when writing large limits
hwmon: (gpio-fan) Prevent overflow problem when writing large limits
hwmon: (ibmpowernv) Use of_property_read_u32 at appropriate place
hwmon: (lm85) Convert to devm_hwmon_device_register_with_groups
hwmon: (lm85) Avoid forward declaration
hwmon: (lm78) Convert to devm_hwmon_device_register_with_groups
hwmon: (max6697) Use of_property_read_bool at appropriate places
hwmon: (pwm-fan) Make SENSORS_PWM_FAN depend on OF
hwmon: (pwm-fan) Remove duplicate dev_set_drvdata call
hwmon: (nct6775) Remove num_attr_groups from struct nct6775_data
hwmon: (nct6775) Update module description and Kconfig for NCT6106D and NCT6791D
hwmon: (adt7411) Convert to devm_hwmon_device_register_with_groups
hwmon: (g762) Convert to hwmon_device_register_with_groups
hwmon: (emc2103) Convert to devm_hwmon_device_register_with_groups
hwmon: (smsc47m1) Avoid forward declaration
hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groups
hwmon: (smsc47m192) Avoid forward declaration
hwmon: (max1668) Make max1668_addr_list array const
hwmon: (max6639) Make normal_i2c array const
...
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This patch adds support for the ntc thermistor B57330V2103 from EPCOS.
Signed-off-by: Johannes Pointner <johannes.pointner@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH:
"Here is the big USB driver update for 3.17-rc1.
Loads of gadget driver changes in here, including some big file
movements to make things easier to manage over time. There's also the
usual xhci and uas driver updates, and a handful of other changes in
here. The changelog has the full details.
All of these have been in linux-next for a while"
* tag 'usb-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (211 commits)
USB: devio: fix issue with log flooding
uas: Log a warning when we cannot use uas because the hcd lacks streams
uas: Only complain about missing sg if all other checks succeed
xhci: Add missing checks for xhci_alloc_command failure
xhci: Rename Asrock P67 pci product-id to EJ168
xhci: Blacklist using streams on the Etron EJ168 controller
uas: Limit qdepth to 32 when connected over usb-2
uwb/whci: use correct structure type name in sizeof
usb-core bInterval quirk
USB: serial: ftdi_sio: Add support for new Xsens devices
USB: serial: ftdi_sio: Annotate the current Xsens PID assignments
usb: chipidea: debug: fix sparse non static symbol warnings
usb: ci_hdrc_imx doc: fsl,usbphy is required
usb: ci_hdrc_imx: Return -EINVAL for missing USB PHY
usb: core: allow zero packet flag for interrupt urbs
usb: lvstest: Fix sparse warnings generated by kbuild test bot
USB: core: hcd-pci: free IRQ before disabling PCI device when shutting down
phy: miphy365x: Represent each PHY channel as a DT subnode
phy: miphy365x: Provide support for the MiPHY356x Generic PHY
phy: miphy365x: Add Device Tree bindings for the MiPHY365x
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This patch adds a usb quirk to support devices with interupt endpoints
and bInterval values expressed as microframes. The quirk causes the
parse endpoint function to modify the reported bInterval to a standards
conforming value.
There is currently code in the endpoint parser that checks for
bIntervals that are outside of the valid range (1-16 for USB 2+ high
speed and super speed interupt endpoints). In this case, the code assumes
the bInterval is being reported in 1ms frames. As well, the correction
is only applied if the original bInterval value is out of the 1-16 range.
With this quirk applied to the device, the bInterval will be
accurately adjusted from microframes to an exponent.
Signed-off-by: James P Michels III <james.p.michels@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
Kishon writes:
for_3.17
Adds regulator support in PHY core. PHY core is modified to support
representation of multi-phy PHY providers with each individual PHY
as sub-node OF PHY provider node. New PHY drivers adapted to PHY
framework (hix5hd2 SATA PHY, QCOM APQ8064 SATA PHY,
QCOM IPQ806x SATA PHY, Berlin SATA PHY and MiPHY356x). Existing
TI PIPE3 PHY can now be used for PCIe too. Includes misc fixes and
cleanups.
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In case of multi-phy PHY providers, each PHY should be modeled as a sub
node of the PHY provider. Then each PHY will have a different node pointer
(node pointer of sub node) than that of PHY provider. Added this provision
in the PHY core.
Also fixed all drivers to use the updated API.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
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Some PHYs can be powered by an external power regulator.
e.g. USB_HS PHY on DRA7 SoC. Make the PHY core support a
power regulator.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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8-bit delay value (0xF1) is required for GEN2 devices to be enumerated
consistently. Added an API to be called from PHY drivers to set this delay
value and called it from PIPE3 driver to set the delay value.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.17 merge window
Surprisingly enough, while a big set of patches, the majority is
composed of cleanups (using devm_*, fixing sparse errors, moving
code around, adding const, etc).
The highlights are addition of new support for PLX USB338x devices,
and support for USB 2.0-only configurations of the DWC3 IP core.
Signed-of-by: Felipe Balbi <balbi@ti.com>
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In preparation for DT conversion to reduce reliance on platform device
callbacks.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Introduce the module_usb_composite_driver macro as a convenience macro
for USB gadget composite driver modules, similar to module_usb_driver.
It is intended to be used by drivers which init/exit section does
nothing but calling usb_composite_probe/usb_composite_unrregister. By
using this macro it is possible to eliminate a few lines of boilerplate
code per USB gadget composite driver.
Based on f3a6a4b6 ("USB: Add helper macro for usb_driver boilerplate")
which introduced the according macro for USB drivers.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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This patch adds support for the PLX USB3380 and USB3382.
This driver is based on the driver from the manufacturer.
Since USB338X is register compatible with NET2280, I thought that it
would be better to include this hardware into net2280 driver.
Manufacturer's driver only supported the USB33X, did not follow the
Kernel Style and contain some trivial errors. This patch has tried to
address this issues.
This patch has only been tested on USB338x hardware, but the merge has
been done trying to not affect the behaviour of NET2280.
Tested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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We want those fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If an xhci platform supports USB3 LPM capability then enable
XHCI_LPM_SUPPORT quirk flag.
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver update from Greg KH:
"Here's the big tty / serial driver update for 3.17-rc1.
Nothing major, just a number of fixes and new features for different
serial drivers, and some more tty core fixes and documentation of the
tty locks.
All of these have been in linux-next for a while"
* tag 'tty-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (82 commits)
tty/n_gsm.c: fix a memory leak in gsmld_open
pch_uart: don't hardcode PCI slot to get DMA device
tty: n_gsm, use setup_timer
Revert "ARC: [arcfpga] stdout-path now suffices for earlycon/console"
serial: sc16is7xx: Correct initialization of s->clk
serial: 8250_dw: Add support for deferred probing
serial: 8250_dw: Add optional reset control support
serial: st-asc: Fix overflow in baudrate calculation
serial: st-asc: Don't call BUG in asc_console_setup()
tty: serial: msm: Make of_device_id array const
tty/n_gsm.c: get gsm->num after gsm_activate_mux
serial/core: Fix too big allocation for attribute member
drivers/tty/serial: use correct type for dma_map/unmap
serial: altera_jtaguart: Fix putchar function passed to uart_console_write()
serial/uart/8250: Add tunable RX interrupt trigger I/F of FIFO buffers
Serial: allow port drivers to have a default attribute group
tty: kgdb_nmi: Automatically manage tty enable
serial: altera_jtaguart: Adpot uart_console_write()
serial: samsung: improve code clarity by defining a variable
serial: samsung: correct the case and default order in switch
...
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Add tunable RX interrupt trigger I/F of FIFO buffers.
Serial devices are used as not only message communication devices but control
or sending communication devices. For the latter uses, normally small data
will be exchanged, so user applications want to receive data unit as soon as
possible for real-time tendency. If we have a sensor which sends a 1 byte data
each time and must control a device based on the sensor feedback, the RX
interrupt should be triggered for each data.
According to HW specification of serial UART devices, RX interrupt trigger
can be changed, but the trigger is hard-coded. For example, RX interrupt trigger
in 16550A can be set to 1, 4, 8, or 14 bytes for HW, but current driver sets
the trigger to only 8bytes.
This patch makes some devices change RX interrupt trigger from userland.
<How to use>
- Read current setting
# cat /sys/class/tty/ttyS0/rx_trig_bytes
8
- Write user setting
# echo 1 > /sys/class/tty/ttyS0/rx_trig_bytes
# cat /sys/class/tty/ttyS0/rx_trig_bytes
1
<Support uart devices>
- 16550A and Tegra (1, 4, 8, or 14 bytes)
- 16650V2 (8, 16, 24, or 28 bytes)
- 16654 (8, 16, 56, or 60 bytes)
- 16750 (1, 16, 32, or 56 bytes)
<Change log>
Changes in V9:
- Use attr_group instead of dev_spec_attr_group of uart_port structure
Changes in V8:
- Divide this patch from V7's patch based on Greg's comment
Changes in V7:
- Add Documentation
- Change I/F name from rx_int_trig to rx_trig_bytes because the name
rx_int_trig is hard to understand how users specify the value
Changes in V6:
- Move FCR_RX_TRIG_* definition in 8250.h to include/uapi/linux/serial_reg.h,
rename those to UART_FCR_R_TRIG_*, and use UART_FCR_TRIGGER_MASK to
UART_FCR_R_TRIG_BITS()
- Change following function names:
convert_fcr2val() => fcr_get_rxtrig_bytes()
convert_val2rxtrig() => bytes_to_fcr_rxtrig()
- Fix typo in serial8250_do_set_termios()
- Delete the verbose error message pr_info() in bytes_to_fcr_rxtrig()
- Rename *rx_int_trig/rx_trig* to *rxtrig* for several functions or variables
(but UI remains rx_int_trig)
- Change the meaningless variable name 'val' to 'bytes' following functions:
fcr_get_rxtrig_bytes(), bytes_to_fcr_rxtrig(), do_set_rxtrig(),
do_serial8250_set_rxtrig(), and serial8250_set_attr_rxtrig()
- Use up->fcr in order to get rxtrig_bytes instead of rx_trig_raw in
fcr_get_rxtrig_bytes()
- Use conf_type->rxtrig_bytes[0] instead of switch statement for support check
in register_dev_spec_attr_grp()
- Delete the checking whether a user changed FCR or not when minimum buffer
is needed in serial8250_do_set_termios()
Changes in V5.1:
- Fix FCR_RX_TRIG_MAX_STATE definition
Changes in V5:
- Support Tegra, 16650V2, 16654, and 16750
- Store default FCR value to up->fcr when the port is first created
- Add rx_trig_byte[] in uart_config[] for each device and use rx_trig_byte[]
in convert_fcr2val() and convert_val2rxtrig()
Changes in V4:
- Introduce fifo_bug flag in uart_8250_port structure
This is enabled only when parity is enabled and UART_BUG_PARITY is enabled
for up->bugs. If this flag is enabled, user cannot set RX trigger.
- Return -EOPNOTSUPP when it does not support device at convert_fcr2val() and
at convert_val2rxtrig()
- Set the nearest lower RX trigger when users input a meaningless value at
convert_val2rxtrig()
- Check whether p->fcr is existing at serial8250_clear_and_reinit_fifos()
- Set fcr = up->fcr in the begging of serial8250_do_set_termios()
Changes in V3:
- Change I/F from ioctl(2) to sysfs(rx_int_trig)
Changed in V2:
- Use _IOW for TIOCSFIFORTRIG definition
- Pass the interrupt trigger value itself
Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some serial drivers (like 8250), want to add sysfs files. We need to do
so in a race-free way, so allow any port to be able to specify an
attribute group that should be added at device creation time.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It helps to cast struct uart_port to struct uart_8250_port at runtime.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We want those fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The two functions alloc_tty_struct and initialize_tty_struct are
always called together. Merge them into alloc_tty_struct, updating its
prototype and the only two callers of these functions.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The tty core calls the tty driver's open, close and hangup
methods holding the tty lock.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here's the big pull request for the staging driver tree for 3.17-rc1.
Lots of things in here, over 2000 patches, but the best part is this:
1480 files changed, 39070 insertions(+), 254659 deletions(-)
Thanks to the great work of Kristina Martšenko, 14 different staging
drivers have been removed from the tree as they were obsolete and no
one was willing to work on cleaning them up. Other than the driver
removals, loads of cleanups are in here (comedi, lustre, etc.) as well
as the usual IIO driver updates and additions.
All of this has been in the linux-next tree for a while"
* tag 'staging-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (2199 commits)
staging: comedi: addi_apci_1564: remove diagnostic interrupt support code
staging: comedi: addi_apci_1564: add subdevice to check diagnostic status
staging: wlan-ng: coding style problem fix
staging: wlan-ng: fixing coding style problems
staging: comedi: ii_pci20kc: request and ioremap memory
staging: lustre: bitwise vs logical typo
staging: dgnc: Remove unneeded dgnc_trace.c and dgnc_trace.h
staging: dgnc: rephrase comment
staging: comedi: ni_tio: remove some dead code
staging: rtl8723au: Fix static symbol sparse warning
staging: rtl8723au: usb_dvobj_init(): Remove unused variable 'pdev_desc'
staging: rtl8723au: Do not duplicate kernel provided USB macros
staging: rtl8723au: Remove never set struct pwrctrl_priv.bHWPowerdown
staging: rtl8723au: Remove two never set variables
staging: rtl8723au: RSSI_test is never set
staging:r8190: coding style: Fixed checkpatch reported Error
staging:r8180: coding style: Fixed too long lines
staging:r8180: coding style: Fixed commenting style
staging: lustre: ptlrpc: lproc_ptlrpc.c - fix dereferenceing user space buffer
staging: lustre: ldlm: ldlm_resource.c - fix dereferenceing user space buffer
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
Fourth round of IIO new drivers, functionality and cleanups for the 3.17 cycle
New functionality
* A new modifier to indicate that a rotation is relative to either
true or magnetic north. This is to be used by some magnetometers
that provide data in this way.
* hid magnetometer now supports output rotations from various variants on
North
* HMC5843 driver converted to regmap and reworked to allow easy support
of other similar devices. Support for HMC5983 added via both i2c and SPI.
* Rework of Exynos driver to simplify extension to support more devices.
* Addition of support for the Exynos3250 ADC (which requires an additional
clock) Support for quite a few more devices on its way.
Cleanups
* ad7997 - a number of cleanups and tweaks to how the events are controlled
to make it more intuitive.
* kxcjk - cleanups and minor fixes for this new driver.
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Added the rotation from north usage attributes to the iio modifier enum and to the iio modifier names array.
Signed-off-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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devm_kasprintf() and devm_kvasprintf() are the managed counterparts
for kasprintf() and kvasprintf().
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It was added to support DSP Bridge. Since DSP Bridge was removed, and
nothing else is using the platform device, remove it too.
Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Omar Ramirez Luna <omar.ramirez@copitl.com>
Cc: Suman Anna <s-anna@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We want the fixes in -rc5 in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
3rd round of IIO new drivers, cleanups and functionality for the 3.17 cycle.
New drivers
* isl29125 digital color light sensor driver
* TAOS/AMS tcs3414 digital color sensor
Staging graduation
* ad7291 ADC driver.
New functionality
* st_sensors - device tree support and bindings
* mma8452 - device tree support
Cleanups
* Drop redundant variables in a number of drivers.
* Reorder a structure definition to ealy wiht a warning about static
not being at the beginning in the hid-sensors driver.
* Switch a few more drivers away from using explicit sampling_frequency
attribute to providing this through the core.
* Make hid_sensor_get_reporting_interval static as only used within a single
file.
* Drop a redundant check for negative values in an unsigned variable from
ad9832
* Drop some duplicate case labels in the event monitor example code.
* Use devm_ioremap_resource to simplify error handling.
* Use devm_kzalloc within the blackfin timer driver to simplify error
handling and removal.
* A number of cleanups of the ad7291 from Hartmut Knaack in response
to a patch moving it out of staging.
* Core support for the period info element about events. It has been
in the abi for a while, but not added until now to the newer handling
of information related to events.
* Add HAS_IOMEM dependency to mxs_lradc to avoid build issues when testing
enabled.
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The iio sysfs ABI defines a way to specify period for roc and thresholds.
What: /sys/.../events/in_accel_x_thresh_rising_period
What: /sys/.../events/in_accel_x_thresh_falling_period
what: /sys/.../events/in_accel_x_roc_rising_period
What: /sys/.../events/in_accel_x_roc_falling_period
But there is no way to add period with the current event info enum.
Added IIO_EV_INFO_PERIOD and corresponding string.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The I2C devices that make up the STMicroelectronics MEMS sensors
may be sneakily enabled by cleverly giving the device node the same
name as a string match from the platform device ID table. However
the right method is to use the compatible string.
On detection, the ST sensors use the ID string to probe and
instatiate the right sensor driver, so pass the kernel-internal ID
string in the .data field of the OF match table, and set the I2C
client name to this name when a compatible match is used.
This avoids having misc Linux-specific strings floating around in
the device tree.
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Denis CIOCCA <denis.ciocca@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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The ad7291 driver is in a reasonable shape. It does not use non-standard API/ABI
and there are no major style issues with the driver. So this patch moves it out
of staging.
There is one small warning from checkpatch which is also fixed in this patch.
The patch also sorts the #include directives in alphabetical order.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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By using the info_mask_shared_by_all element of the channel spec, acce
to the sampling frequency becomes available to in kernel users of the
driver. It also shortens and simplifies the code.
This particular conversion was made more complicated by the shared library
and the fact that a number of the drivers do not actually have support for
setting or reading the sampling frequency. The hardware, in those cases
investigated supports it. It's just never been implemented.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
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support.
This allows in kernel client drivers to access this
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Denis Ciocca <denis.ciocca@st.com>
Reviewed-by: Hartmut Knaack <knaack.h@gmx.de>
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