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* Merge tag 'armsoc-late' of ↵Linus Torvalds2019-01-051-0/+17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull more ARM SoC updates from Olof Johansson: "A few updates that we merged late but are low risk for regressions for other platforms (and a few other straggling patches): - I mis-tagged the 'drivers' branch, and missed 3 patches. Merged in here. They're for a driver for the PL353 SRAM controller and a build fix for the qualcomm scm driver. - A new platform, RDA Micro RDA8810PL (Cortex-A5 w/ integrated Vivante GPU, 256MB RAM, Wifi). This includes some acked platform-specific drivers (serial, etc). This also include DTs for two boards with this SoC, OrangePi 2G and OrangePi i86. - i.MX8 is another new platform (NXP, 4x Cortex-A53 + Cortex-M4, 4K video playback offload). This is the first i.MX 64-bit SoC. - Some minor updates to Samsung boards (adding a few peripherals in DTs). - Small rework for SMP bootup on STi platforms. - A couple of TEE driver fixes. - A couple of new config options (bcm2835 thermal, Uniphier MDMAC) enabled in defconfigs" * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (27 commits) ARM: multi_v7_defconfig: enable CONFIG_UNIPHIER_MDMAC arm64: defconfig: Re-enable bcm2835-thermal driver MAINTAINERS: Add entry for RDA Micro SoC architecture tty: serial: Add RDA8810PL UART driver ARM: dts: rda8810pl: Add interrupt support for UART dt-bindings: serial: Document RDA Micro UART ARM: dts: rda8810pl: Add timer support ARM: dts: Add devicetree for OrangePi i96 board ARM: dts: Add devicetree for OrangePi 2G IoT board ARM: dts: Add devicetree for RDA8810PL SoC ARM: Prepare RDA8810PL SoC dt-bindings: arm: Document RDA8810PL and reference boards dt-bindings: Add RDA Micro vendor prefix ARM: sti: remove pen_release and boot_lock arm64: dts: exynos: Add Bluetooth chip to TM2(e) boards arm64: dts: imx8mq-evk: enable watchdog arm64: dts: imx8mq: add watchdog devices MAINTAINERS: add i.MX8 DT path to i.MX architecture arm64: add support for i.MX8M EVK board arm64: add basic DTS for i.MX8MQ ...
| * dt-bindings: serial: Document RDA Micro UARTAndreas Färber2018-12-311-0/+17
| | | | | | | | | | | | | | | | | | | | Add an initial binding for the UART in RDA Micro RDA8810PL SoC. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
* | Merge tag 'docs-5.0' of git://git.lwn.net/linuxLinus Torvalds2018-12-291-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull documentation update from Jonathan Corbet: "A fairly normal cycle for documentation stuff. We have a new document on perf security, more Italian translations, more improvements to the memory-management docs, improvements to the pathname lookup documentation, and the usual array of smaller fixes. As is often the case, there are a few reaches outside of Documentation/ to adjust kerneldoc comments" * tag 'docs-5.0' of git://git.lwn.net/linux: (38 commits) docs: improve pathname-lookup document structure configfs: fix wrong name of struct in documentation docs/mm-api: link slab_common.c to "The Slab Cache" section slab: make kmem_cache_create{_usercopy} description proper kernel-doc doc:process: add links where missing docs/core-api: make mm-api.rst more structured x86, boot: documentation whitespace fixup Documentation: devres: note checking needs when converting doc:it: add some process/* translations doc:it: fixes in process/1.Intro Documentation: convert path-lookup from markdown to resturctured text Documentation/admin-guide: update admin-guide index.rst Documentation/admin-guide: introduce perf-security.rst file scripts/kernel-doc: Fix struct and struct field attribute processing Documentation: dev-tools: Fix typos in index.rst Correct gen_init_cpio tool's documentation Document /proc/pid PID reuse behavior Documentation: update path-lookup.md for parallel lookups Documentation: Use "while" instead of "whilst" dmaengine: Add mailing list address to the documentation ...
| * | Documentation: Use "while" instead of "whilst"Will Deacon2018-11-201-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Whilst making an unrelated change to some Documentation, Linus sayeth: | Afaik, even in Britain, "whilst" is unusual and considered more | formal, and "while" is the common word. | | [...] | | Can we just admit that we work with computers, and we don't need to | use þe eald Englisc spelling of words that most of the world never | uses? dictionary.com refers to the word as "Chiefly British", which is probably an undesirable attribute for technical documentation. Replace all occurrences under Documentation/ with "while". Cc: David Howells <dhowells@redhat.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michael Halcrow <mhalcrow@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* | dt-bindings: serial: sh-sci: Document r8a774c0 bindingsFabrizio Castro2018-12-191-0/+2
| | | | | | | | | | | | | | | | | | | | | | RZ/G2E (R8A774C0) SoC also has the R-Car Gen3 compatible SCIF and HSCIF ports, so document the SoC specific bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: serial: sh-sci: Document r8a774a1 bindingsFabrizio Castro2018-12-191-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | RZ/G2M (R8A774A1) SoC also has the R-Car Gen3 compatible SCIF and HSCIF ports, so document the SoC specific bindings. While at it, update the RZ/G1 and RZ/G2 family specific strings description as outdated. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: serial: lpuart: add imx8qxp compatible stringAisheng Dong2018-12-191-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Add imx8qxp compatible string Cc: Mark Rutland <mark.rutland@arm.com> Cc: linux-serial@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: serial: 8250: Add rate limit for serial port input overrunsDarwin Dingel2018-12-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a serial port continuously experiences input overrun from (1) continuous receive characters from remote and or (2) hardware issues, its interrupt handler can preempt other tasks especially when the system is busy (ie. boot up period). This can cause other tasks to get starved of processing time from the CPU. When this dts binding is enabled and input overrun on the serial port is detected, serial port receive will be throttled to give some breathing room for processing other tasks. Value provided will be in milliseconds. &serial0{ overrun-throttle-ms = <500>; }; Signed-off-by: Darwin Dingel <darwin.dingel@alliedtelesis.co.nz> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: serial: lantiq: Add optional properties for CCFSongjun Wu2018-11-091-0/+15
|/ | | | | | | | Clocks and clock-names are updated in device tree binding. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Songjun Wu <songjun.wu@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: sh-sci: Add r8a77990 supportHiromitsu Yamasaki2018-10-111-0/+2
| | | | | | | | | | This patch adds the R-Car E3 serial documentation. Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: 8250_uniphier: add auto-flow-control supportDai Okamura2018-10-021-0/+3
| | | | | | | | | Add selective auto-flow-control support for UniPhier serial driver. Signed-off-by: Dai Okamura <okamura.dai@socionext.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* serial: 8250_uniphier: remove unused "fifo-size" propertyMasahiro Yamada2018-10-021-4/+0
| | | | | | | | | | | | | The FIFO size of the UART devices is 64 on almost all UniPhier SoCs with the exception Pro4TV SoC (MN2WS0235), which used 128 FIFO size. However, Pro4TV SoC was never upstreamed, and out of production. So, this property has never been used in a useful way. Let's remove old unused code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* dt-bindings: serial: sh-sci: Document r8a7744 bindingsBiju Das2018-10-021-0/+4
| | | | | | | | | | | RZ/G1N (R8A7744) SoC also has the R-Car gen2 compatible SCIF, SCIFA, SCIFB, and HSCIF ports, so document the SoC specific bindings. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* dt-bindings: Add binding for atmel-usart in SPI modeRadu Pirea2018-09-101-64/+0
| | | | | | | | | | This patch moves the bindings for serial from serial/atmel-usart.txt to mfd/atmel-usart.txt and adds bindings for USART in SPI mode. Signed-off-by: Radu Pirea <radu.pirea@microchip.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Merge tag 'tty-4.19-rc1' of ↵Linus Torvalds2018-08-186-3/+57
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the big tty and serial driver pull request for 4.19-rc1. It's not all that big, just a number of small serial driver updates and fixes, along with some better vt handling for unicode characters for those using braille terminals. All of these patches have been in linux-next for a long time with no reported issues" * tag 'tty-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (73 commits) tty: serial: 8250: Revert NXP SC16C2552 workaround serial: 8250_exar: Read INT0 from slave device, too tty: rocket: Fix possible buffer overwrite on register_PCI serial: 8250_dw: Add ACPI support for uart on Broadcom SoC serial: 8250_dw: always set baud rate in dw8250_set_termios dt-bindings: serial: Add binding for uartlite tty: serial: uartlite: Add support for suspend and resume tty: serial: uartlite: Add clock adaptation tty: serial: uartlite: Add structure for private data serial: sh-sci: Improve support for separate TEI and DRI interrupts serial: sh-sci: Remove SCIx_RZ_SCIFA_REGTYPE serial: sh-sci: Allow for compressed SCIF address serial: sh-sci: Improve interrupts description serial: 8250: Use cached port name directly in messages serial: 8250_exar: Drop unused variable in pci_xr17v35x_setup() vt: drop unused struct vt_struct vt: avoid a VLA in the unicode screen scroll function vt: add /dev/vcsu* to devices.txt vt: coherence validation code for the unicode screen buffer vt: selection: take screen contents from uniscr if available ...
| * dt-bindings: serial: Add binding for uartliteShubhrajyoti Datta2018-08-021-0/+23
| | | | | | | | | | | | | | | | | | The uartlite devicetree binding was missed out. Add the binding documentation for uartlite that is already in use. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * serial: sh-sci: Improve interrupts descriptionChris Brandt2018-08-021-1/+15
| | | | | | | | | | | | | | | | | | | | Describe interrupts property in more detail, especially when there are more than one interrupt. Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * serial: sh-sci: Document that serial aliases became optionalGeert Uytterhoeven2018-07-211-1/+1
| | | | | | | | | | | | | | | | | | Serial aliases are optional since commit 7678f4c20fa7670f ("serial: sh-sci: Add support for dynamic instances"). Update the DT bindings to reflect this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * dt: serial: Add Renesas RZ/N1 binding documentationPhil Edworthy2018-07-211-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | The RZ/N1 UART is a modified Synopsys DesignWare UART. The modifications only relate to DMA so you could actually use the controller with the Synopsys compatible string if you are not using DMA, but you should not do so. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * serial: sh-sci: Document r7s9210 bindingsChris Brandt2018-07-161-0/+1
| | | | | | | | | | | | | | | | Add R7S9210 (RZ/A2) support Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * dt-bindings: mtk-uart: add mt6765 uart bindingsMars Cheng2018-07-061-0/+1
| | | | | | | | | | | | | | | | Add documentation for mt6765 uart dt-bindings Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * dt-bindings: serial: 8250_omap: Add compatible for AM654 UART controllerNishanth Menon2018-06-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AM654 uses a UART controller that is only partially compatible with existing 8250 UART. UART DMA integration is substantially different and even a match against standard 8250 or omap4 would result in non-working UART once DMA is enabled by default. Introduce a specific compatible to help build up the differences in follow on patches. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Vignesh R <vigneshr@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * dt-bindings: serial: imx: clarify rs485 support usageBaruch Siach2018-06-281-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i.MX UART peripheral uses the RST_B signal as input, and CTS_B as output. This is just like the DCE role in RS-232. This is true regardless of the "DTE mode" setting of this peripheral. As a result, rs485 support hardware must use the CTS_B signal to control the RS-485 transceiver. This is in contrast to generic rs485 kernel code, documentation, and DT property names that consistently refer to the RTS as transceiver control signal. Add a note in the DT binding document about that, to reduce the confusion somewhat. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: remove 'interrupt-parent' from bindingsRob Herring2018-07-253-9/+0
|/ | | | | | | | | | | | 'interrupt-parent' is often documented as part of define bindings, but it is really outside the scope of a device binding. It's never required in a given node as it is often inherited from a parent node. Or it can be implicit if a parent node is an 'interrupt-controller' node. So remove it from all the binding files. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
* devicetree: fix name of pinctrl-bindings.txtMauro Carvalho Chehab2018-06-151-1/+1
| | | | | | | | | | Rename: pinctrl-binding.txt -> pinctrl-bindings.txt In order to match the current name of this file. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
* Merge tag 'devicetree-fixes-for-4.17' of ↵Linus Torvalds2018-05-071-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree fixes from Rob Herring: - fix path to display timing binding - fix some typos in interrupt-names and clock-names - fix a resource leak on overlay removal - add missing documentation for R8A77965 DMA, serial, and net - cleanup sunxi pinctrl description - add Kieback & Peter GmbH vendor prefix * tag 'devicetree-fixes-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: panel: lvds: Fix path to display timing bindings dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/ dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/ of: overlay: Stop leaking resources on overlay removal dtc: checks: drop warning for missing PCI bridge bus-range dt-bindings: dmaengine: rcar-dmac: document R8A77965 support dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIF dt-bindings: net: ravb: Add support for r8a77965 SoC dt-bindings: pinctrl: sunxi: Fix reference to driver doc: Add vendor prefix for Kieback & Peter GmbH
| * dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/Geert Uytterhoeven2018-05-011-1/+1
| | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
| * dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/Geert Uytterhoeven2018-04-271-1/+1
| | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Rob Herring <robh@kernel.org>
| * dt-bindings: serial: sh-sci: Add support for r8a77965 (H)SCIFJacopo Mondi2018-04-161-0/+2
| | | | | | | | | | | | | | | | | | Add documentation for r8a77965 compatible string to Renesas sci-serial device tree bindings documentation. Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rob Herring <robh@kernel.org>
* | dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/Geert Uytterhoeven2018-04-231-1/+1
| | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | serial: sh-sci: Document r8a77470 bindingsBiju Das2018-04-231-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | RZ/G1C (R8A77470) SoC also has the R-Car gen2 compatible SCIF and HSCIF ports, so document the SoC specific bindings. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/Geert Uytterhoeven2018-04-231-1/+1
|/ | | | | Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'tty-4.17-rc1' of ↵Linus Torvalds2018-04-043-0/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the big set of tty and serial driver patches for 4.17-rc1 Not all that big really, most are just small fixes and additions to existing drivers. There's a bunch of work on the imx serial driver recently for some reason, and a new embedded serial driver added as well. Full details are in the shortlog. All of these have been in the linux-next tree for a while with no reported issues" * tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits) serial: expose buf_overrun count through proc interface serial: mvebu-uart: fix tx lost characters tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe() tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP 8250-men-mcb: add support for 16z025 and 16z057 powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused serial: stm32: fix initialization of RS485 mode ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards vt: change SGR 21 to follow the standards serdev: Fix typo in serdev_device_alloc ARM: dts: STi: Fix aliases property name for STi boards tty: st-asc: Update tty alias serial: stm32: add support for RS485 hardware control mode dt-bindings: serial: stm32: add RS485 optional properties selftests: add devpts selftests devpts: comment devpts_mntget() devpts: resolve devpts bind-mounts devpts: hoist out check for DEVPTS_SUPER_MAGIC serial: 8250: Add Nuvoton NPCM UART serial: mxs-auart: disable clks of Alphascale ASM9260 ...
| * dt-bindings: serial: stm32: add RS485 optional propertiesBich HEMON2018-03-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | Add options for enabling RS485 hardware control and configuring Driver Enable signal: - rs485-rts-delay - rs485-rx-during-tx - rs485-rts-active-low - linux,rs485-enabled-at-boot-time Signed-off-by: Bich Hemon <bich.hemon@st.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * serial: 8250: Add Nuvoton NPCM UARTJoel Stanley2018-03-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | The Nuvoton UART is almost compatible with the 8250 driver when probed via the 8250_of driver, however it requires some extra configuration at startup. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * DT: serial: renesas,sci-serial: document R8A77980 bindingsSergei Shtylyov2018-02-281-0/+2
| | | | | | | | | | | | | | | | | | | | | | R-Car V3H (R8A77980) SoC has the R-Car gen3 compatible SCIF and HSCIF ports, so document the SoC specific bindings. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | serial: remove cris/etrax uart driversArnd Bergmann2018-03-261-22/+0
|/ | | | | | | | | The cris architecture is getting removed, so we don't need the uart driver any more. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Merge tag 'devicetree-for-4.16' of ↵Linus Torvalds2018-02-011-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - Convert to use memblock_virt_alloc in DT code which supports bootmem arches. With this we can remove the arch specific early_init_dt_alloc_memory_arch() functions. - Enable running the DT unittests on UML - Use SPDX license tags on DT files - Fix early FDT kconfig ifdef logic - Clean-up unittest Makefile - Fix function comment for of_irq_parse_raw - Add missing documentation for linux,initrd-{start,end} properties - Clean-up of binding examples using uppercase hex - Add trivial devices W83773G and Infineon TLV493D-A1B6 - Add missing STM32 SoC bindings - Various small binding doc fixes * tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (23 commits) xtensa: remove arch specific early DT functions x86: remove arch specific early_init_dt_alloc_memory_arch nios2: remove arch specific early_init_dt_alloc_memory_arch mips: remove arch specific early_init_dt_alloc_memory_arch metag: remove arch specific early DT functions cris: remove arch specific early DT functions libfdt: remove unnecessary include directive from <linux/libfdt.h> of: unittest: refactor Makefile of/fdt: use memblock_virt_alloc for early alloc of: Use SPDX license tag for DT files of/fdt: Fix #ifdef dependency of early flattree declarations dt-bindings: h8300 clocksource: correct spelling of pulse dt-bindings: imx6q-pcie: Add required property for i.MX6SX mmc: Don't reference Linux-specific OF_GPIO_ACTIVE_LOW flag in DT binding dt-bindings: Use lower case hex in unit-addresses dt-bindings: display: panel: Fix compatible string for Toshiba LT089AC29000 dt-bindings: Add Infineon TLV493D-A1B6 dt-bindings: mailbox: ti,message-manager: Fix interrupt name error dt-bindings: chosen: Document linux,initrd-{start,end} dt-bindings: arm: document supported STM32 SoC family ...
| * dt-bindings: Use lower case hex in unit-addressesRob Herring2017-12-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | DT unit addresses should be lower case hex. Fix all the binding examples. Converted with the following command from Krzysztof Kozlowski: sed -e 's/@\([a-fA-F0-9_-]*\) {/@\L\1 {/' -i $(find Documentation/devicetree/bindings -name '*.txt') Signed-off-by: Rob Herring <robh@kernel.org>
* | serial: 8250_ingenic: Add support for the JZ4770 SoCPaul Cercueil2018-01-091-2/+6
| | | | | | | | | | | | | | | | | | The JZ4770 SoC's UART is no different from the other JZ SoCs, so this commit simply adds the ingenic,jz4770-uart compatible string. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | serial: max310x: Document clock setupJan Kundrát2017-12-191-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | As a kernel newcomer, I got bitten by lack of examples on this front. I had troubles figuring out where these clocks could be defined ("/clocks" is where the generic infrastructure expects them). One should also ensure that a unique name is used. Generic names such as "osc" tend to be already used by some board-wide clock crystals. Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | serial: max310x: Use level-triggered interruptsJan Kundrát2017-12-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I was getting this trace along with a disabled IRQ when I was generating heavy traffic over four daisy-chained UARTs (MAX14830) on my test kit (Marvell Armada AM388, Solidrun Clearfog Base): irq 51: nobody cared (try booting with the "irqpoll" option) CPU: 0 PID: 68 Comm: irq/51-spi1.2 Not tainted 4.14.4 #7 Hardware name: Marvell Armada 380/385 (Device Tree) [<c0110ba4>] (unwind_backtrace) from [<c010c1d8>] (show_stack+0x10/0x14) [<c010c1d8>] (show_stack) from [<c07776ac>] (dump_stack+0x84/0x98) [<c07776ac>] (dump_stack) from [<c016bdfc>] (__report_bad_irq+0x28/0xcc) [<c016bdfc>] (__report_bad_irq) from [<c016c204>] (note_interrupt+0x28c/0x2dc) [<c016c204>] (note_interrupt) from [<c01695d4>] (handle_irq_event_percpu+0x4c/0x58) [<c01695d4>] (handle_irq_event_percpu) from [<c0169624>] (handle_irq_event+0x44/0x68) [<c0169624>] (handle_irq_event) from [<c016ce80>] (handle_edge_irq+0x12c/0x1dc) [<c016ce80>] (handle_edge_irq) from [<c016872c>] (generic_handle_irq+0x24/0x34) [<c016872c>] (generic_handle_irq) from [<c03fc5a0>] (mvebu_gpio_irq_handler+0xe0/0x184) [<c03fc5a0>] (mvebu_gpio_irq_handler) from [<c016872c>] (generic_handle_irq+0x24/0x34) [<c016872c>] (generic_handle_irq) from [<c0168c4c>] (__handle_domain_irq+0x5c/0xb4) [<c0168c4c>] (__handle_domain_irq) from [<c0101520>] (gic_handle_irq+0x4c/0x90) [<c0101520>] (gic_handle_irq) from [<c010ce4c>] (__irq_svc+0x6c/0x90) Exception stack(0xeea77c30 to 0xeea77c78) 7c20: 0000000a 018cba80 0000000a f098f680 7c40: 0000020a f098f680 00000008 0000020a 018cba80 00000001 ee9302a0 eea76000 7c60: ef2b2640 eea77c80 c050687c c0506894 80070013 ffffffff [<c010ce4c>] (__irq_svc) from [<c0506894>] (orion_spi_setup_transfer+0x118/0x20c) [<c0506894>] (orion_spi_setup_transfer) from [<c05069ac>] (orion_spi_transfer_one+0x1c/0x26c) [<c05069ac>] (orion_spi_transfer_one) from [<c05060e4>] (spi_transfer_one_message+0xec/0x500) [<c05060e4>] (spi_transfer_one_message) from [<c05059a4>] (__spi_pump_messages+0x3f4/0x680) [<c05059a4>] (__spi_pump_messages) from [<c0505e38>] (__spi_sync+0x1fc/0x200) [<c0505e38>] (__spi_sync) from [<c0505e60>] (spi_sync+0x24/0x3c) [<c0505e60>] (spi_sync) from [<c0505f48>] (spi_write_then_read+0xd0/0x17c) [<c0505f48>] (spi_write_then_read) from [<c0482efc>] (_regmap_raw_read+0xb0/0x250) [<c0482efc>] (_regmap_raw_read) from [<c04830c0>] (_regmap_bus_read+0x24/0x4c) [<c04830c0>] (_regmap_bus_read) from [<c04826f4>] (_regmap_read+0x60/0x148) [<c04826f4>] (_regmap_read) from [<c0482818>] (regmap_read+0x3c/0x5c) [<c0482818>] (regmap_read) from [<c04592b4>] (max310x_port_irq+0x104/0x2dc) [<c04592b4>] (max310x_port_irq) from [<c0459a40>] (max310x_ist+0x68/0xc0) [<c0459a40>] (max310x_ist) from [<c016a610>] (irq_thread_fn+0x1c/0x54) [<c016a610>] (irq_thread_fn) from [<c016a8d8>] (irq_thread+0x12c/0x1f0) [<c016a8d8>] (irq_thread) from [<c013e560>] (kthread+0x128/0x158) [<c013e560>] (kthread) from [<c0107a50>] (ret_from_fork+0x14/0x24) handlers: [<c0169694>] irq_default_primary_handler threaded [<c04599d8>] max310x_ist Disabling IRQ #51 On a multi-UART max310x, each UART has its own interrupt status register which automatically de-asserts the IRQ line upon read. (There are also top-level IRQ indicator registers which are not clear-on-read, but they are not relevant here.) It was quite possible to receive a pending IRQ for, e.g., UART0, enter the threaded IRQ handler, clear the ISR for UART0 which de-asserts the IRQ line, and then race with another event on the same chip, but a different UART channel. That resulted in another edge on the shared-within-the-chip IRQ line which got intercepted by the kernel. That all led to an edge-level interrupt which was not being handled by anybody because our threaded handler hasn't finished yet. As the chip actually uses *level* triggered IRQs, let's convert the example DT bindings to these. Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | dt-bindings: mvebu-uart: update documentation with extended UARTMiquel Raynal2017-12-151-5/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | Update the device tree binding documentation for the Marvell EBU UART, in order to allow describing the extended UART IP block, in addition to the already supported standard UART IP. This requires adding a new compatible string, the introduction of a clocks property, and extensions to the interrupts property. Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge 4.15-rc3 into tty-nextGreg Kroah-Hartman2017-12-111-1/+1
|\| | | | | | | | | | | We want the serial/tty fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * dt-bindings: Remove leading 0x from bindings notationMathieu Malaterre2017-12-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Improve the binding example by removing all the leading 0x to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading "0x" Converted using the following command: find Documentation/devicetree/bindings -name "*.txt" -exec sed -i -e 's/([^ ])\@0x([0-9a-f])/$1\@$2/g' {} + This is a follow up to commit 48c926cd3414 Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Rob Herring <robh@kernel.org>
* | dt-bindings: serial: Add common rs485 binding for RTS polarityLukas Wunner2017-11-284-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | dt-bindings: serial: fsl-imx-uart: Remove 'fsl,irda-mode' propertyFabio Estevam2017-11-281-1/+0
|/ | | | | | | | | | '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>
* Merge tag 'armsoc-dt' of ↵Linus Torvalds2017-11-161-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM device-tree updates from Arnd Bergmann: "We add device tree files for a couple of additional SoCs in various areas: Allwinner R40/V40 for entertainment, Broadcom Hurricane 2 for networking, Amlogic A113D for audio, and Renesas R-Car V3M for automotive. As usual, lots of new boards get added based on those and other SoCs: - Actions S500 based CubieBoard6 single-board computer - Amlogic Meson-AXG A113D based development board - Amlogic S912 based Khadas VIM2 single-board computer - Amlogic S912 based Tronsmart Vega S96 set-top-box - Allwinner H5 based NanoPi NEO Plus2 single-board computer - Allwinner R40 based Banana Pi M2 Ultra and Berry single-board computers - Allwinner A83T based TBS A711 Tablet - Broadcom Hurricane 2 based Ubiquiti UniFi Switch 8 - Broadcom bcm47xx based Luxul XAP-1440/XAP-810/ABR-4500/XBR-4500 wireless access points and routers - NXP i.MX51 based Zodiac Inflight Innovations RDU1 board - NXP i.MX53 based GE Healthcare PPD biometric monitor - NXP i.MX6 based Pistachio single-board computer - NXP i.MX6 based Vining-2000 automotive diagnostic interface - NXP i.MX6 based Ka-Ro TX6 Computer-on-Module in additional variants - Qualcomm MSM8974 (Snapdragon 800) based Fairphone 2 phone - Qualcomm MSM8974pro (Snapdragon 801) based Sony Xperia Z2 Tablet - Realtek RTD1295 based set-top-boxes MeLE V9 and PROBOX2 AVA - Renesas R-Car V3M (R8A77970) SoC and "Eagle" reference board - Renesas H3ULCB and M3ULCB "Kingfisher" extension infotainment boards - Renasas r8a7745 based iWave G22D-SODIMM SoM - Rockchip rk3288 based Amarula Vyasa single-board computer - Samsung Exynos5800 based Odroid HC1 single-board computer For existing SoC support, there was a lot of ongoing work, as usual most of that concentrated on the Renesas, Rockchip, OMAP, i.MX, Amlogic and Allwinner platforms, but others were also active. Rob Herring and many others worked on reducing the number of issues that the latest version of 'dtc' now warns about. Unfortunately there is still a lot left to do. A rework of the ARM foundation model introduced several new files for common variations of the model" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (599 commits) arm64: dts: uniphier: route on-board device IRQ to GPIO controller for PXs3 dt-bindings: bus: Add documentation for the Technologic Systems NBUS arm64: dts: actions: s900-bubblegum-96: Add fake uart5 clock ARM: dts: owl-s500: Add CubieBoard6 dt-bindings: arm: actions: Add CubieBoard6 ARM: dts: owl-s500-guitar-bb-rev-b: Add fake uart3 clock ARM: dts: owl-s500: Set power domains for CPU2 and CPU3 arm: dts: mt7623: remove unused compatible string for pio node arm: dts: mt7623: update usb related nodes arm: dts: mt7623: update crypto node ARM: dts: sun8i: a711: Enable USB OTG ARM: dts: sun8i: a711: Add regulator support ARM: dts: sun8i: a83t: bananapi-m3: Enable AP6212 WiFi on mmc1 ARM: dts: sun8i: a83t: cubietruck-plus: Enable AP6330 WiFi on mmc1 ARM: dts: sun8i: a83t: Move mmc1 pinctrl setting to dtsi file ARM: dts: sun8i: a83t: allwinner-h8homlet-v2: Add AXP818 regulator nodes ARM: dts: sun8i: a83t: bananapi-m3: Add AXP813 regulator nodes ARM: dts: sun8i: a83t: cubietruck-plus: Add AXP818 regulator nodes ARM: dts: sunxi: Add dtsi for AXP81x PMIC arm64: dts: allwinner: H5: Restore EMAC changes ...
| * Merge tag 'mvebu-dt64-4.15-1' of git://git.infradead.org/linux-mvebu into ↵Arnd Bergmann2017-10-301-1/+1
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | next/dt Pull "mvebu dt64 for 4.15 (part 1)" from Gregory CLEMENT: On Armada 7K/8k: - Improve network support at SoC and board level - Enable watchdog - Add UART muxing - On 7040 DB: add CD SDIO and NAND support - On 8040 DB: add PCIE more ports and SPI1 On Armada 37xx: - Fix UART register size - Add vmmc regulator for SD on 3720 DB * tag 'mvebu-dt64-4.15-1' of git://git.infradead.org/linux-mvebu: arm64: dts: marvell: 7040-db: Add the carrier detect pin for SD card on CP arm64: dts: marvell: 7040-db: Document the gpio expander arm64: dts: marvell: enable additional PCIe ports on Armada 8040 DB arm64: dts: marvell: add NAND support on the 7040-DB board arm64: dts: marvell: Enable Armada-8040-DB CPS SPI1 arm64: dts: marvell: 8040-db: enable the SFP ports arm64: dts: marvell: 7040-db: enable the SFP port arm64: dts: marvell: 7040-db: add comphy reference to Ethernet port arm64: dts: marvell: mcbin: add comphy references to Ethernet ports arm64: dts: marvell: 37xx: remove empty line arm64: dts: marvell: cp110: add PPv2 port interrupts arm64: dts: marvell: add comphy nodes on cp110 master and slave arm64: dts: marvell: extend the cp110 syscon register area length arm64: dts: marvell: enable AP806 watchdog arm64: dts: marvell: Fix A37xx UART0 register size arm64: dts: marvell: armada-3720-db: Add vmmc regulator for SD slot arm64: dts: marvell: add UART muxing on Armada 7K/8K
| | * arm64: dts: marvell: Fix A37xx UART0 register sizeallen yan2017-09-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Armada-37xx UART0 registers are 0x200 bytes wide. Right next to them are the UART1 registers that should not be declared in this node. Update the example in DT bindings document accordingly. Signed-off-by: allen yan <yanwei@marvell.com> Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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