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rs485 allows for robust half-duplex serial communication. It is often
implemented by attaching an rs485 transceiver to a UART. The UART's
RTS line is wired to the transceiver's Transmit Enable pin and
determines whether the transceiver is sending or receiving.
Examples for such transceivers are Maxim MAX13451E and TI SN65HVD1781A:
https://datasheets.maximintegrated.com/en/ds/MAX13450E-MAX13451E.pdf
http://www.ti.com/lit/ds/symlink/sn65hvd1781a-q1.pdf
In the devicetree, the transceiver itself is not represented, only the
UART is. A few rs485-specific dt-bindings already exist and these go
into the UART's device node.
This commit adds a binding to set the RTS polarity. Most (if not all)
transceivers require the Transmit Enable pin be driven high for sending,
but in some cases boards may negate the pin and RTS must then be driven
low. Consequently the polarity defaults to active high but can be
inverted with the newly added "rs485-rts-active-low" binding.
Document this binding in rs485.txt and in the two drivers fsl-imx-uart
and fsl-lpuart that are about to be amended with support for it.
Curiously, the omap_serial driver defaults to active low and already
supports an "rs485-rts-active-high" binding to invert the polarity.
This is left unchanged to retain compatibility, but the binding is
herewith documented.
Cc: Mark Jackson <mpfj@newflow.co.uk>
Cc: Michał Oleszczyk <oleszczyk.m@gmail.com>
Cc: Rafael Gago Castano <rgc@hms.se>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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'fsl,irda-mode' property has been removed since commit afe9cbb1a6ad
("serial: imx: drop support for IRDA"), so remove it from the binding
document.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Pull more drm updates from Dave Airlie:
"Fixes/cleanups for rc1, non-desktop flags for VR
- remove the MSM dt-bindings file Rob managed to push in the previous
pull.
- add a property/edid quirk to denote HMD devices, I had these
hanging around for a few weeks and Keith had done some work on
them, they are fairly self contained and small, and only affect
people using HTC Vive VR headsets so far.
- amdgpu, tegra, tilcdc, fsl fixes
- some imx-drm cleanups I missed, these seemed pretty small, and no
reason to hold off.
I have one TTM regression fix (fixes bochs-vga in qemu) sitting
locally awaiting review I'll probably send that in a separate pull
request tomorrow"
* tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux: (33 commits)
dt-bindings: remove file that was added accidentally
drm/edid: quirk HTC vive headset as non-desktop. [v2]
drm/fb: add support for not enabling fbcon on non-desktop displays [v2]
drm: add connector info/property for non-desktop displays [v2]
drm/amdgpu: fix rmmod KCQ disable failed error
drm/amdgpu: fix kernel hang when starting VNC server
drm/amdgpu: don't skip attributes when powerplay is enabled
drm/amd/pp: fix typecast error in powerplay.
drm/tilcdc: Remove obsolete "ti,tilcdc,slave" dts binding support
drm/tegra: sor: Reimplement pad clock
Revert "drm/radeon: dont switch vt on suspend"
drm/amd/amdgpu: fix over-bound accessing in amdgpu_cs_wait_any_fence
drm/amd/powerplay: fix unfreeze level smc message for smu7
drm/amdgpu:fix memleak
drm/amdgpu:fix memleak in takedown
drm/amd/pp: fix dpm randomly failed on Vega10
drm/amdgpu: set f_mapping on exported DMA-bufs
drm/amdgpu: Properly allocate VM invalidate eng v2
drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()
drm/fsl-dcu: avoid disabling pixel clock twice on suspend
...
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git://git.pengutronix.de/git/pza/linux into drm-next
drm/imx: various cleanups
- Switch to drm_*_get/put() helpers
- Use correct parallel-display connector enum: DPI instead of VGA
- Remove incorrect unit name from device tree binding documentation example
- Remove an unused variable
* tag 'imx-drm-next-2017-10-18' of git://git.pengutronix.de/git/pza/linux:
gpu: ipu-v3: ipu-dc: Remove unused 'di' variable
dt-bindings: fsl-imx-drm: Remove incorrect "@di0" usage
drm/imx: parallel-display: use correct connector enum
drm/imx: switch to drm_*_get(), drm_*_put() helpers
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Improve the binding example by removing the '@di0' notation, which
fixes the following build warning:
Warning (unit_address_vs_reg): Node /display@di0 has a unit name, but
no reg property
Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"The changes for this release include power management improvements for
the pwm-img driver, support for the backup mode on pwm-atmel-tcb as
well as support for more hardware with the R-Car and Mediatek drivers.
To round things off there's a bit of cleanup for sunxi and stm32-lp"
* tag 'pwm/for-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: stm32-lp: Remove pwm_is_enabled() check before calling pwm_disable()
pwm: mediatek: Add MT2712/MT7622 support
pwm: sunxi: Use of_device_get_match_data()
pwm: atmel-tcb: Support backup mode
dt-bindings: pwm: Add R-Car D3 device tree bindings
pwm: img: Add runtime PM
pwm: img: Add suspend / resume handling
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Add device tree bindings for the PWM controller found on R-Car D3 SoCs.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"There is nothing scary this cycle, mostly driver fixes and updates.
The core fix has been in for a while and has been tested on multiple
kernel revisions by multiple teams.
Core:
- Fix setting the alarm to the next expiring timer
New drivers:
- Mediatek MT7622 RTC
- NXP PCF85363
- Spreadtrum SC27xx PMIC RTC
Drivers updates:
- Use generic nvmem to expose the Non volatile ram for ds1305,
ds1511, m48t86 and omap
- abx80x: solve possible race condition at probe
- armada38x: support trimming the RTC oscillator
- at91rm9200: fix reading the alarm value at boot
- ds1511: allow waking platform
- m41t80: rework square wave output
- pcf8523: support trimming the RTC oscillator
- pcf8563: fix clock output rate
- pl031: make interrupt optional
- xgene: fix suspend/resume"
* tag 'rtc-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
dt-bindings: rtc: imxdi: Improve the bindings text
rtc: sc27xx: Add Spreadtrum SC27xx PMIC RTC driver
dt-bindings: rtc: Add Spreadtrum SC27xx RTC documentation
rtc: at91rm9200: fix reading alarm value
rtc: at91rm9200: stop calculating yday in at91_rtc_readalarm
rtc: sysfs: Use time64_t variables to set time/alarm
rtc: xgene: mark PM functions as __maybe_unused
rtc: xgene: Fix suspend/resume
rtc: pcf8563: don't alway enable the alarm
rtc: pcf8563: fix output clock rate
rtc: rx8010: Fix for incorrect return value
rtc: rx8010: Specify correct address for RX8010_RESV31
rtc: rx8010: Remove duplicate define
rtc: m41t80: remove unneeded checks from m41t80_sqw_set_rate
rtc: m41t80: avoid i2c read in m41t80_sqw_is_prepared
rtc: m41t80: avoid i2c read in m41t80_sqw_recalc_rate
rtc: m41t80: fix m41t80_sqw_round_rate return value
rtc: m41t80: m41t80_sqw_set_rate should return 0 on success
rtc: add support for NXP PCF85363 real-time clock
rtc: omap: Support scratch registers
...
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Improve the bindings text by doing the following changes:
- Remove the i.MX53 reference, as the RTC on i.MX53 is a different hardware
- Add 'clocks' to the list of required properties
- Explain that the optional security violation irq is the second entry
- Use the real unit address and irq numbers for i.MX25
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Juergen Borleis <jbe@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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This patch adds the binding documentation for Spreadtrum SC27xx series
RTC device.
Signed-off-by: Baolin Wang <baolin.wang@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Note that alarms are not currently implemented.
64 bytes of nvmem is supported and exposed in
sysfs (# is the instance number, starting with 0):
/sys/bus/nvmem/devices/pcf85363-#/nvmem
Signed-off-by: Eric Nelson <eric@nelint.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Add device-tree binding for MediaTek SoC based RTC
Cc: devicetree@vger.kernel.org
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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The vendor string for Microcrystal is microcrystal.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Pull MTD updates from Richard Weinberger:
"General changes:
- Unconfuse get_unmapped_area and point/unpoint driver methods
- New partition parser: sharpslpart
- Kill GENERIC_IO
- Various fixes
NAND changes:
- Add a flag to mark NANDs that require 3 address cycles to encode a
page address
- Set a default ECC/free layout when NAND_ECC_NONE is requested
- Fix a bug in panic_nand_write()
- Another batch of cleanups for the denali driver
- Fix PM support in the atmel driver
- Remove support for platform data in the omap driver
- Fix subpage write in the omap driver
- Fix irq handling in the mtk driver
- Change link order of mtk_ecc and mtk_nand drivers to speed up boot
time
- Change log level of ECC error messages in the mxc driver
- Patch the pxa3xx driver to support Armada 8k platforms
- Add BAM DMA support to the qcom driver
- Convert gpio-nand to the GPIO desc API
- Fix ECC handling in the mt29f driver
SPI-NOR changes:
- Introduce system power management support
- New mechanism to select the proper .quad_enable() hook by JEDEC
ID, when needed, instead of only by manufacturer ID
- Add support to new memory parts from Gigadevice, Winbond, Macronix
and Everspin
- Maintainance for Cadence, Intel, Mediatek and STM32 drivers"
* tag 'for-linus-20171120' of git://git.infradead.org/linux-mtd: (85 commits)
mtd: Avoid probe failures when mtd->dbg.dfs_dir is invalid
mtd: sharpslpart: Add sharpslpart partition parser
mtd: Add sanity checks in mtd_write/read_oob()
mtd: remove the get_unmapped_area method
mtd: implement mtd_get_unmapped_area() using the point method
mtd: chips/map_rom.c: implement point and unpoint methods
mtd: chips/map_ram.c: implement point and unpoint methods
mtd: mtdram: properly handle the phys argument in the point method
mtd: mtdswap: fix spelling mistake: 'TRESHOLD' -> 'THRESHOLD'
mtd: slram: use memremap() instead of ioremap()
kconfig: kill off GENERIC_IO option
mtd: Fix C++ comment in include/linux/mtd/mtd.h
mtd: constify mtd_partition
mtd: plat-ram: Replace manual resource management by devm
mtd: nand: Fix writing mtdoops to nand flash.
mtd: intel-spi: Add Intel Lewisburg PCH SPI super SKU PCI ID
mtd: nand: mtk: fix infinite ECC decode IRQ issue
mtd: spi-nor: Add support for mr25h128
mtd: nand: mtk: change the compile sequence of mtk_nand.o and mtk_ecc.o
mtd: spi-nor: enable 4B opcodes for mx66l51235l
...
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From Boris:
"
Core changes:
* Add a flag to mark NANDs that require 3 address cycles to encode a
page address
* Set a default ECC/free layout when NAND_ECC_NONE is requested
* Fix a bug in panic_nand_write()
Driver changes:
* Another batch of cleanups for the denali driver
* Fix PM support in the atmel driver
* Remove support for platform data in the omap driver
* Fix subpage write in the omap driver
* Fix irq handling in the mtk driver
* Change link order of mtk_ecc and mtk_nand drivers to speed up boot
time
* Change log level of ECC error messages in the mxc driver
* Patch the pxa3xx driver to support Armada 8k platforms
* Add BAM DMA support to the qcom driver
* Convert gpio-nand to the GPIO desc API
* Fix ECC handling in the mt29f driver
"
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Document the new pxa3xx_nand driver compatible string for A7k/A8k SoCs
that need to access system controller registers in order to enable the
NAND controller through the use of a phandle pointed to by the
'marvell,system-controller' property.
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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This example allocates much more than needed for address regions.
As for "denali_reg", as you see in drivers/mtd/nand/denali.h, all
registers fit in 0x1000.
As for "nand_data", this IP is generally configured to use Indexed
Addressing mode, where there are only two registers in the address
translation module (CTRL: 0x00, DATA: 0x10). Altera SOCFPGA is
also this case. So, 0x20 is enough.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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This pull-request contains the following notable changes:
From Cyrille:
"
Core changes:
* Introduce system power management support.
* New mechanism to select the proper .quad_enable() hook by JEDEC ID,
when needed, instead of only by manufacturer ID.
* Add support to new memory parts from Gigadevice, Winbond, Macronix and
Everspin.
Driver changes:
* Maintainance for Cadence, Intel, Mediatek and STM32 drivers.
"
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Add Everspin mr25h128 16KB MRAM to the list of supported chips.
Signed-off-by: Philipp Puschmann <pp@emlix.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
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Add "mediatak,mt2712-nor" and "mediatek,mt7622-nor"
for nor flash node's compatible strings.
Explicate the fallback compatible.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guochun Mao <guochun.mao@mediatek.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
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Cadence QSPI IP has a adapted loop-back circuit which can be enabled by
setting BYPASS field to 0 in READCAPTURE register. It enables use of
QSPI return clock to latch the data rather than the internal QSPI
reference clock. For high speed operations, adapted loop-back circuit
using QSPI return clock helps to increase data valid window.
Add DT parameter cdns,rclk-en to help enable adapted loop-back circuit
for boards which do have QSPI return clock provided. Update binding
documentation for the same.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
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Update binding documentation to add a new compatible for TI 66AK2G SoC,
to handle TI SoC specific quirks in the driver.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
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Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here (though removal of the dead igafb
driver stands out in diffstat).
Summary:
- convert timers to use timer_setup() (Kees Cook, Thierry Reding)
- fix panels support on iMX boards in mxsfb driver (Stefan Agner)
- fix timeout on EDID read in udlfb driver (Ladislav Michl)
- add missing modes to fix out of bounds access in controlfb driver
(Geert Uytterhoeven)
- update initialisation paths in sa1100fb driver to be more robust
(Russell King)
- fix error handling path of ->probe method in au1200fb driver
(Christophe JAILLET)
- fix handling of cases when either panel or crt is defined in
sm501fb driver (Sudip Mukherjee, Colin Ian King)
- add ability to the Goldfish FB driver to be recognized by OS via DT
(Aleksandar Markovic)
- structures constifications (Bhumika Goyal)
- misc fixes (Allen Pais, Gustavo A. R. Silva, Dan Carpenter)
- misc cleanups (Colin Ian King, Himanshu Jha, Markus Elfring)
- remove dead igafb driver"
* tag 'fbdev-v4.15' of git://github.com/bzolnier/linux: (42 commits)
OMAPFB: prevent buffer underflow in omapfb_parse_vram_param()
video: fbdev: sm501fb: fix potential null pointer dereference on fbi
fbcon: Initialize ops->info early
video: fbdev: Convert timers to use timer_setup()
video: fbdev: pxa3xx_gcu: Convert timers to use timer_setup()
fbdev: controlfb: Add missing modes to fix out of bounds access
video: fbdev: sis_main: mark expected switch fall-throughs
video: fbdev: cirrusfb: mark expected switch fall-throughs
video: fbdev: aty: radeon_pm: mark expected switch fall-throughs
video: fbdev: sm501fb: mark expected switch fall-through in sm501fb_blank_crt
video: fbdev: intelfb: remove redundant variables
video/fbdev/dnfb: Use common error handling code in dnfb_probe()
sm501fb: suspend and resume fb if it exists
sm501fb: unregister framebuffer only if registered
sm501fb: deallocate colormap only if allocated
video: goldfishfb: Add support for device tree bindings
Documentation: Add device tree binding for Goldfish FB driver
video: udlfb: Fix read EDID timeout
video: fbdev: remove dead igafb driver
video: fbdev: mxsfb: fix pixelclock polarity
...
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Add documentation for DT binding of Goldfish FB driver. The compatible
string used by OS for binding the driver is "google,goldfish-fb".
Signed-off-by: Miodrag Dinic <miodrag.dinic@mips.com>
Signed-off-by: Goran Ferenc <goran.ferenc@mips.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@mips.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Douglas Leung <douglas.leung@mips.com>
Cc: James Hogan <james.hogan@mips.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Petar Jovanovic <petar.jovanovic@mips.com>
Cc: Raghu Gandham <raghu.gandham@mips.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- Remove mc13892 as a trivial device
- Improve of_find_node_by_name() documentation
- Fix unit test dtc warnings
- Clean-ups of USB binding documentation
- Fix potential NULL deref in of_pci_map_rid
* tag 'devicetree-fixes-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: trivial-devices: Remove fsl,mc13892
of: Document exactly what of_find_node_by_name() puts
of: unittest: disable interrupts_property warning
of: unittest: let dtc generate __local_fixups__
dt-bindings: usb: document hub and host-controller properties
dt-bindings: usb: clean up compatible property
dt-bindings: usb: fix reg-property port-number range
dt-bindings: usb: fix example hub node name
of/pci: Fix theoretical NULL dereference
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This device's bindings are not trivial: Additional properties are
documented in in Documentation/devicetree/bindings/mfd/mc13xxx.txt.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Hub nodes and host-controller nodes with child nodes must specify values
for #address-cells (1) and #size-cells (0).
Also make the definition of the related reg property a bit more
stringent, and add comments to the example source.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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Add quotation marks around the compatible string to avoid ambiguity due
to following punctuation, and define the VID and PID components.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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The USB hub port-number range for USB 2.0 is 1-255 and not 1-31 which
reflects an arbitrary limit set by the current Linux implementation.
Note that for USB 3.1 hubs the valid range is 1-15.
Increase the documented valid range in the binding to 255, which is the
maximum allowed by the specifications.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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According to the OF Recommended Practice for USB, hub nodes shall be
named "hub", but the example had mixed up the label and node names. Fix
the node name and drop the redundant label.
While at it, remove a newline and add a missing semicolon to the example
source.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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Pull remoteproc updates from Bjorn Andersson:
"This adds an interface for configuring Qualcomm's "secure SMMU" and
adds support for booting the modem Hexagon on MSM8996.
Two new debugfs entries are added in the remoteproc core to introspect
the list of memory carveouts and the loaded resource table"
* tag 'rproc-v4.15' of git://github.com/andersson/remoteproc:
remoteproc: qcom: Fix error handling paths in order to avoid memory leaks
remoteproc: qcom: Drop pr_err in q6v5_xfer_mem_ownership()
remoteproc: debug: add carveouts list dump feature
remoteproc: debug: add resource table dump feature
remoteproc: qcom: Add support for mss remoteproc on msm8996
remoteproc: qcom: Make secure world call for mem ownership switch
remoteproc: qcom: refactor mss fw image loading sequence
firmware: scm: Add new SCM call API for switching memory ownership
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This patch add support for mss boot on msm8996. Major changes
include initializing mss rproc for msm8996, making appropriate
change for executing mss reset sequence etc.
Tested-and-acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Pull rpmsg updates from Bjorn Andersson:
- turn RPMSG_VIRTIO into a user selectable config
- fix few bugs in GLINK
- provide the support for specifying initial buffer sizes for GLINK
channels.
* tag 'rpmsg-v4.15' of git://github.com/andersson/remoteproc:
rpmsg: glink: The mbox client knows_txdone
rpmsg: glink: Add missing MODULE_LICENSE
rpmsg: glink: Use best fit intent during tx
rpmsg: glink: Add support to preallocate intents
dt-bindings: soc: qcom: Support GLINK intents
rpmsg: glink: Initialize the "intent_req_comp" completion variable
rpmsg: Allow RPMSG_VIRTIO to be enabled via menuconfig or defconfig
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Virtual GLINK channels may know what throughput to expect from a
remoteproc. An intent advertises to the remoteproc this channel is
ready to receive data. Allow a channel to define the size and amount of
intents to be prequeued.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chris Lew <clew@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have two changes to the core framework this time around.
The first being a large change that introduces runtime PM support to
the clk framework. Now we properly call runtime PM operations on the
device providing a clk when the clk is in use. This helps on SoCs
where the clks provided by a device need something to be powered on
before using the clks, like power domains or regulators. It also helps
power those things down when clks aren't in use.
The other core change is a devm API addition for clk providers so we
can get rid of a bunch of clk driver remove functions that are just
doing of_clk_del_provider().
Outside of the core, we have the usual addition of clk drivers and
smattering of non-critical fixes to existing drivers. The biggest diff
is support for Mediatek MT2712 and MT7622 SoCs, but those patches
really just add a bunch of data.
By the way, we're trying something new here where we build the tree up
with topic branches. We plan to work this into our workflow so that we
don't step on each other's toes, and so the fixes branch can be merged
on an as-needed basis.
Summary:
Core:
- runtime PM support for clk providers
- devm API for of_clk_add_hw_provider()
New Drivers:
- Mediatek MT2712 and MT7622
- Renesas R-Car V3M SoC
Updates:
- runtime PM support for Samsung exynos5433/exynos4412 providers
- removal of clkdev aliases on Samsung SoCs
- convert clk-gpio to use gpio descriptors
- various driver cleanups to match kernel coding style
- Amlogic Video Processing Unit VPU and VAPB clks
- sigma-delta modulation for Allwinner audio PLLs
- Allwinner A83t Display clks
- support for the second display unit clock on Renesas RZ/G1E
- suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
- new clock ids for Rockchip rk3188 and rk3368 SoCs
- various 'const' markings on clk_ops structures
- RPM clk support on Qualcomm MSM8996/MSM8660 SoCs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits)
clk: stm32h7: fix test of clock config
clk: pxa: fix building on older compilers
clk: sunxi-ng: a83t: Fix i2c buses bits
clk: ti: dra7-atl-clock: fix child-node lookups
clk: qcom: common: fix legacy board-clock registration
clk: uniphier: fix DAPLL2 clock rate of Pro5
clk: uniphier: fix parent of miodmac clock data
clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu'
clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep()
clk: hi3660: fix incorrect uart3 clock freqency
clk: kona-setup: Delete error messages for failed memory allocations
ARC: clk: fix spelling mistake: "configurarion" -> "configuration"
clk: cdce925: remove redundant check for non-null parent_name
clk: versatile: Improve sizeof() usage
clk: versatile: Delete error messages for failed memory allocations
clk: ux500: Improve sizeof() usage
clk: ux500: Delete error messages for failed memory allocations
clk: spear: Delete error messages for failed memory allocations
clk: ti: Delete error messages for failed memory allocations
clk: mmp: Adjust checks for NULL pointers
...
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* clk-mediatek:
clk: mediatek: add clock support for MT7622 SoC
clk: mediatek: add clocks dt-bindings required header for MT7622 SoC
clk: mediatek: add the option for determining PLL source clock
dt-bindings: clock: mediatek: document clk bindings for MediaTek MT7622 SoC
clk: mediatek: mark mtk_infrasys_init_early __init
clk: mediatek: Add MT2712 clock support
clk: mediatek: Add dt-bindings for MT2712 clocks
dt-bindings: ARM: Mediatek: Document bindings for MT2712
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This patch adds the binding documentation for apmixedsys, ethsys, hifsys,
infracfg, pericfg, topckgen and audsys for MT7622.
Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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This patch adds the binding documentation for apmixedsys, bdpsys,
imgsys, imgsys, infracfg, mcucfg, mfgcfg, mmsys, pericfg, topckgen,
vdecsys and vencsys for Mediatek MT2712.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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* clk-qcom:
clk: qcom: clk-smd-rpm: add msm8996 rpmclks
clk: qcom: Implement RPM clocks for MSM8660/APQ8060
clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC
clk: qcom: Elaborate on "active" clocks in the RPM clock bindings
clk: qcom: Remove unused RCG ops
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Add all RPM controlled clocks on msm8996 platform
[srini: Fixed various issues with offsets and made names specific to msm8996]
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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These compatible strings need to be added to extend support
for the RPM CC to cover MSM8660/APQ8060. We also need to add
enumberators to the include file for a few clocks that were
missing.
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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The concept of "active" clocks is just explained in a bried comment in the
device driver, let's explain it a bit more in the device tree bindings
so everyone understands this.
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
Pull Renesas clk driver updates from Geert Uytterhoeven:
- Add support for the second display unit clock on RZ/G1E,
- Add git repository to MAINTAINERS,
- Add suspend/resume support for R-Car Gen3 CPG/MSSR,
- Small fixes and cleanups.
* tag 'clk-renesas-for-v4.15-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: rcar-gen3: Restore R clock during resume
clk: renesas: rcar-gen3: Restore SDHI clocks during resume
clk: renesas: div6: Restore clock state during resume
clk: renesas: cpg-mssr: Add support to restore core clocks during resume
clk: renesas: cpg-mssr: Restore module clocks during resume
MAINTAINERS: Add git repository to Renesas clock driver section
clk: renesas: cpg-mssr: Add du1 clock to R8A7745
clk: renesas: rz: clk-rz is meant for RZ/A1
clk: renesas: r8a77995: Correct parent clock of INTC-AP
clk: renesas: r8a7796: Correct parent clock of INTC-AP
clk: renesas: r8a7795: Correct parent clock of INTC-AP
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The RZ family of Renesas SoCs has several different subfamilies (RZ/A,
RZ/G, RZ/N, and RZ/T). Clarify that the renesas,rz-cpg-clocks DT
bindings and clk-rz driver apply to RZ/A1 only.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next
Pull Samsung clk driver updates from Sylwester Nawrocki:
- An addition of separate driver for the Exynos 4412 ISP CMU, needed
to model and properly handle the clock controller's dependencies
on the ISP power domain.
- Adding __maybe_unused attributes to the exynos5433_cmu_{suspend,
resume} ops to suppress compiler warnings with CONFIG_PM disabled.
* tag 'clk-v4.15-exynos-pm' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
clk: samsung: Add a separate driver for Exynos4412 ISP clocks
clk: samsung: Add dt bindings for Exynos4412 ISP clock controller
clk: samsung: Instantiate Exynos4412 ISP clocks only when available
clk: samsung: exynos5433: mark PM functions as __maybe_unused
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Some registers for the Exynos 4412 ISP (Camera subsystem) clocks are
located in the ISP power domain. Because those registers are also
located in a different memory region than the main clock controller,
support for them can be provided by a separate clock controller.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next
Pull Renesas clk driver updates from Geert Uytterhoeven:
- Add support for the new R-Car V3M SoC,
- Small fixes and cleanups.
* tag 'clk-renesas-for-v4.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
clk: renesas: rcar-gen2: Delete error message for failed memory allocation
clk: renesas: mstp: Delete error messages for failed memory allocations
clk: renesas: cpg-mssr: Add R8A77970 support
dt-bindings: clock: Add R8A77970 CPG core clock definitions
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Add R-Car V3M (R8A77970) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 code.
Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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* clk-pm-runtime:
clk: samsung: exynos-audss: Add support for runtime PM
clk: samsung: exynos-audss: Use local variable for controller's device
clk: samsung: exynos5433: Add support for runtime PM
clk: samsung: Add support for runtime PM
clk: Add support for runtime PM
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This patch adds support for runtime PM to Exynos Audio SubSystem driver to
enable full support for audio power domain on Exynos5 SoCs. The main change
is moving register saving and restoring code from system sleep PM ops to
runtime PM ops and implementing system sleep PM ops with generic
pm_runtime_force_suspend/resume helpers. Runtime PM of the Exynos AudSS
device is managed from clock core depending on the preparation status
of the provided clocks.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1503302703-13801-6-git-send-email-m.szyprowski@samsung.com
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