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2018-12-20Merge remote-tracking branches 'spi/topic/mem' and 'spi/topic/mtd' into spi-nextMark Brown1-0/+31
2018-12-14spi: sh-msiof: Add r8a774c0 supportFabrizio Castro1-0/+1
Document RZ/G2E (R8A774C0) SoC bindings. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-13doc: lpspi: Document DT bindings for LPSPI slave modeClark Wang1-0/+4
Add introductions of interrupt-parent and spi-slave. Signed-off-by: Clark Wang <xiaoning.wang@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-06spi: Update NPCM PSPI controller documentationTomer Maimon1-0/+8
Update the PSPI NPCM binding document of the spi aliases use to define the spi ID number. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-27spi: mediatek: Add bindings for mediatek MT7629 soc platformLeilk Liu1-0/+1
This patch adds a DT binding documentation for the MT7629 soc. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-13dt-binding: spi: add NPCM PSPI controller documentationTomer Maimon1-0/+35
Added device tree binding documentation for Nuvoton BMC NPCM Peripheral SPI controller. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-13spi: pxa2xx: dt-bindings: Add ready GPIO signalLubomir Rintel1-0/+2
This this is used to let the SPI master know that our FIFO is filled and we're ready to service a transfer. Only useful in slave mode. A signal like this is used by an embedded controller on a OLPC XO 1.75 machine, that happens to be a SPI master. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-13spi: pxa2xx: dt-bindings: Add spi-slave propertyLubomir Rintel1-0/+1
This is used to indicate that the chip attached to this controller is a SPI master. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-07spi: rspi: Add r8a77470 to the compatible listFabrizio Castro1-0/+1
Add r8a77470 to the list of examples with soctypes. No driver change is needed as "renesas,qspi" will activate the right code within the corresponding driver. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-07spi: omap-spi: Add compatible for AM654 SoCVignesh R1-0/+1
AM654 SoC has same McSPI IP as OMAP2+ platforms. Add new compatible to support McSPI on AM654 SoC. Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-07dt-bindings: spi: QuadSPI driver for Atmel SAMA5D2Piotr Bugalski1-0/+31
Atmel SAMA5D2 QuadSPI driver was moved from mtd to spi subsystem, this change is just moving DT-binding documentation. Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Piotr Bugalski <bugalski.piotr@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-05dt-binding: spi: Document Macronix controller bindingsMason Yang1-0/+34
Document the bindings used by the Macronix controller. Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-05spi: uniphier: re-add addressing propertiesKeiji Hayashibara1-0/+4
In commit 7662d1dc17d4 ("spi: uniphier: fix incorrect property items") addressing properties of #address-cells and #size-cells were removed. Since it is not necessary to remove them, they are back again. Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-05spi: uniphier: fix incorrect property itemsKeiji Hayashibara1-6/+8
This commit fixes incorrect property because it was different from the actual. The parameters of '#address-cells' and '#size-cells' were removed, and 'interrupts', 'pinctrl-names' and 'pinctrl-0' were added. Fixes: 4dcd5c2781f3 ("spi: add DT bindings for UniPhier SPI controller") Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-05spi: mediatek: Add bindings for mediatek MT8183 soc platformLeilk Liu1-0/+1
This patch adds a DT binding documentation for the MT8183 soc. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-21spi: lpspi: add imx8qxp compatible stringA.s. Dong1-0/+1
Add imx8qxp compatible string Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-19dt-bindings: spi: add stm32 qspi controllerLudovic Barre1-0/+44
This patch adds the documentation of device tree bindings for the STM32 QSPI controller. It is a specialized communication interface targeting single, dual or quad SPI Flash memories (NOR/NAND). Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-17spi: sh-msiof: document R8A779{7|8}0 bindingsSergei Shtylyov1-0/+2
Document the R-Car V3{M|H} (R8A779{7|8}0) SoCs in the Renesas MSIOF bindings. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi/spi-pxa2xx: add PXA2xx SSP SPI ControllerLubomir Rintel1-0/+24
This is the SPI controller found on Marvel MMP2 and perhaps more platforms. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi: soc: qcom: GENI SE SPI controller device tree bindingDilip Kota1-0/+39
Move GENI SE SPI controller device-tree bindings from devicetree/bindings/soc/qcom/qcom,geni-se.txt to devicetree/bindings/spi/qcom,spi-geni-qcom.txt. Signed-off-by: Dilip Kota <dkota@codeaurora.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Alok Chauhan <alokc@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi: Qualcomm Quad SPI(QSPI) documentationGirish Mahadevan1-0/+36
Bindings for Qualcomm Quad SPI used on SoCs such as sdm845. Signed-off-by: Girish Mahadevan <girishm@codeaurora.org> Signed-off-by: Ryan Case <ryandcase@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-11spi: dw: add compatible for Amazon's Alpine spi controllerTalel Shenhar1-1/+1
This compatible adds the ability for dw spi controller driver to work with the dw spi controller found on Alpine chips. The dw spi controller has an auto-deselect of Chip-Select, in case there is no data inside the Tx FIFO. While working on platforms with Alpine chips, auto-deselect mode causes an issue for some spi devices that can't handle the Chip-Select deselect in the middle of a transaction. It is a normal behavior for a Tx FIFO to be empty in the middle of a transaction, due to busy cpu. In the Alpine chip family an option to change the default behavior was added to the original dw spi controller to prevent this issue of de-asserting Chip-Select once TX FIFO is empty. The change was to allow SW manual control of the Chip-Select. With this change, as long as the Slave Enable Register is asserted, the Chip-Select will be asserted. As a result, it is necessary to deselect the Slave Select Register once the transaction is done. This feature is enabled via a new device compatible string called 'amazon,alpine-dw-apb-ssi'. Once the driver identifies the new compatible string, it enables the hw fixup logic, by writing to a dedicated register found in the IP reserved area and will start manual deselecting the Slave Select Register when the transfer ends. Signed-off-by: Talel Shenhar <talel@amazon.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-01dt-bindings: spi: sh-msiof: Add r8a7744 supportBiju Das1-0/+1
Document RZ/G1N (R8A7744) SoC bindings. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-10-01dt-bindings: spi: rspi: Add r8a7744 to the compatible listBiju Das1-0/+1
Document RZ/G1N (r8a7744) SoC specific bindings. Signed-off-by: Biju Das <biju.das@bp.renesas.com> Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-28spi: mediatek: add bindings for Mediatek MT2712 soc platformLeilk Liu1-0/+32
This patch adds a DT binding documentation for the MT2712 soc. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-27dt-bindings: spi: rspi: Add R7S9210 supportChris Brandt1-1/+2
Add support for RZ/A2 Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-04spi: sh-msiof: Document R-Car E3 supportGeert Uytterhoeven1-0/+1
Document support for the MSIOF module in the Renesas R-Car E3 (r8a77990) SoC. No driver update is needed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-04spi: sh-msiof: Document R-Car D3 supportUlrich Hecht1-0/+1
Document support for the MSIOF module in the Renesas R-Car D3 (r8a77995) SoC. No driver update is needed. Signed-off-by: Ulrich Hecht <uli+renesas@fpond.eu> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-28spi: sh-msiof: Add r8a774a1 supportFabrizio Castro1-1/+2
Document RZ/G2M (R8A774A1) SoC bindings. 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: Mark Brown <broonie@kernel.org>
2018-08-28spi: Add Spreadtrum SPI controller documentationLanqing Liu1-0/+26
This patch adds the binding documentation for Spreadtrum SPI controller device. Signed-off-by: Lanqing Liu <lanqing.liu@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-08-14Merge tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds9-13/+0
Pull Devicetree updates from Rob Herring: - Remove an obsolete hack for PPC32 longtrail systems - Make of_io_request_and_map() "name" arg optional - Add vendor prefixes for bitmain, Asus, and Y Soft - Remove 'interrupt-parent' from bindings as it is implicit - New properties for wm8994 audio codec - Add 'clocks' property support to SRAM binding - Add binding for ASPEED coprocessor interrupt controller - Various binding spelling and link fixes * tag 'devicetree-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: Documentation: remove dynamic-resolution-notes reference to non-existent file dt-bindings: Add Y Soft Corporation vendor prefix of/fdt: Remove PPC32 longtrail hack in memory scan dt-bindings: remove 'interrupt-parent' from bindings pinctrl: tegra: fix spelling in devicetree binding document usb: dwc3: rockchip: Fix PHY documentation links. dt-bindings: sound: wm8994: document wlf,csnaddr-pd property dt-bindings: sound: wm8994: document wlf,spkmode-pu property dt-bindings: sram: Add 'clocks' as an optional property dt-bindings: Add vendor prefix for AsusTek Computer Inc. dt-bindings: misc: ASPEED coprocessor interrupt controller dt-bindings: gpio: pca953x: Document interrupts, update example drivers/of: Make of_io_request_and_map() "name" argument optional dt-bindings: Add bitmain vendor prefix Documentation: devicetree: tilcdc: fix spelling mistake "suppors" -> "supports"
2018-08-01spi: add DT bindings for UniPhier SPI controllerKunihiko Hayashi1-0/+22
Add DT bindings for SPI controller implemented in UniPhier SoCs. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-31spi: dw: document Microsemi integrationAlexandre Belloni1-2/+4
The integration of the Designware SPI controller on Microsemi SoCs requires an extra register set to be able to give the IP control of the SPI interface. Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-25dt-bindings: remove 'interrupt-parent' from bindingsRob Herring9-13/+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>
2018-07-17spi: rockchip: add description for px30Liang Chen1-0/+1
Add "rockchip,px30-spi", "rockchip,rk3066-spi" for spi on px30 platform. Signed-off-by: Liang Chen <cl@rock-chips.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-06-15devicetree: fix name of pinctrl-bindings.txtMauro Carvalho Chehab1-1/+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>
2018-04-02Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/sprd' and 'spi/topic/tegra20-slink' into spi-nextMark Brown1-0/+1
2018-03-28spi: sh-msiof: Document R-Car M3-N supportGeert Uytterhoeven1-0/+1
Document support for the MSIOF module in the Renesas M3-N (r8a77965) SoC. No driver update is needed. Signed-off-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: Mark Brown <broonie@kernel.org>
2018-02-14spi: spi-gpio: Augment device tree bindingsLinus Walleij1-6/+18
After we augmented the core to handle "gpio-sck"/"sck-gpios", "gpio-mosi"/"mosi-gpios", "gpio-miso"/"miso-gpios" alike, deprecate the old binding and put the strict modern and recommended binding practice into place as the default for GPIO-based SPI. This reflects the similar change in I2C: commit 7d29f509d2cf ("dt-bindings: i2c: i2c-gpio: Add support for named gpios") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-01Merge tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds2-2/+2
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 ...
2018-01-26Merge remote-tracking branch 'spi/topic/xilinx' into spi-nextMark Brown1-1/+1
2018-01-26Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof', 'spi/topic/sirf' and 'spi/topic/sun6i' into spi-nextMark Brown1-1/+15
2018-01-26Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/imx', 'spi/topic/jcore', 'spi/topic/meson' and 'spi/topic/orion' into spi-nextMark Brown2-1/+12
2018-01-12spi: orion: Fix clock resource by adding an optional bus clockGregory CLEMENT1-0/+9
On Armada 7K/8K we need to explicitly enable the bus clock. The bus clock is optional because not all the SoCs need them but at least for Armada 7K/8K it is actually mandatory. The binding documentation is updating accordingly as well as mentioning the mandatory clock which was also missing. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-12-26dt-bindings: Use lower case hex in unit-addressesRob Herring2-2/+2
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>
2017-12-19Merge remote-tracking branches 'spi/fix/armada', 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/imx', 'spi/fix/rspi', 'spi/fix/sun4i' and 'spi/fix/xilinx' into spi-linusMark Brown1-6/+12
2017-12-14spi: sh-msiof: Document hardware limitations related to chip selectsGeert Uytterhoeven1-0/+10
Guide users to maintain the proper balance between native and GPIO chip selects. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-12-14spi: sh-msiof: Extend support to 3 native chip selectsGeert Uytterhoeven1-1/+5
Currently only the MSIOF_SYNC signal can be used as a native chip select. Extend support to up to 3 native chipselects using the MSIOF_SS1 and MSIOF_SS2 signals. Inspired by a patch in the BSP by Hiromitsu Yamasaki. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-12-06dt-bindings: Remove leading 0x from bindings notationMathieu Malaterre1-1/+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>
2017-11-28spi: meson-axg: update compatible string for the Meson-AXGSunny Luo1-1/+3
Update the compatbile string to support Meson-AXG SoCs. Signed-off-by: Sunny Luo <sunny.luo@amlogic.com> Signed-off-by: Yixun Lan <yixun.lan@amlogic.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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