Revision tags: v5.2.11, v5.2.10, v5.2.9 |
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305e503b |
| 09-Aug-2019 |
Arnd Bergmann <arnd@arndb.de> |
spi: remove w90x900 driver The ARM w90x900 platform is getting removed, so this driver is obsolete. Link: https://lore.kernel.org/r/20190809202749.742267-8-arnd@arndb.de Signed-
spi: remove w90x900 driver The ARM w90x900 platform is getting removed, so this driver is obsolete. Link: https://lore.kernel.org/r/20190809202749.742267-8-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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ace55c41 |
| 28-Aug-2019 |
Tomer Maimon <tmaimon77@gmail.com> |
spi: npcm-fiu: add NPCM FIU controller driver Add Nuvoton NPCM BMC Flash Interface Unit(FIU) SPI master controller driver using SPI-MEM interface. The FIU supports single, dual
spi: npcm-fiu: add NPCM FIU controller driver Add Nuvoton NPCM BMC Flash Interface Unit(FIU) SPI master controller driver using SPI-MEM interface. The FIU supports single, dual or quad communication interface. the FIU controller can operate in following modes: - User Mode Access(UMA): provides flash access by using an indirect address/data mechanism. - direct rd/wr mode: maps the flash memory into the core address space. - SPI-X mode: used for an expansion bus to an ASIC or CPLD. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Link: https://lore.kernel.org/r/20190828142513.228556-3-tmaimon77@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v5.2.8, v5.2.7, v5.2.6, v5.2.5, v5.2.4, v5.2.3, v5.2.2, v5.2.1, v5.2, v5.1.16, v5.1.15, v5.1.14, v5.1.13, v5.1.12, v5.1.11, v5.1.10, v5.1.9, v5.1.8, v5.1.7 |
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b0823ee3 |
| 04-Jun-2019 |
Masahisa Kojima <masahisa.kojima@linaro.org> |
spi: Add spi driver for Socionext SynQuacer platform This patch adds support for controller found on synquacer platforms. Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
spi: Add spi driver for Socionext SynQuacer platform This patch adds support for controller found on synquacer platforms. Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v5.1.6, v5.1.5, v5.1.4, v5.1.3, v5.1.2, v5.1.1, v5.0.14, v5.1, v5.0.13, v5.0.12, v5.0.11, v5.0.10, v5.0.9, v5.0.8, v5.0.7, v5.0.6 |
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67dca5e5 |
| 01-Apr-2019 |
Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> |
spi: spi-mem: Add support for Zynq QSPI controller Add support for QSPI controller driver used by Xilinx Zynq SOC. Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xili
spi: spi-mem: Add support for Zynq QSPI controller Add support for QSPI controller driver used by Xilinx Zynq SOC. Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v5.0.5 |
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cbd66c62 |
| 25-Mar-2019 |
Stefan Roese <sr@denx.de> |
spi: mt7621: Move SPI driver out of staging This patch moves the MT7621 SPI driver, which is used on some Ralink / MediaTek MT76xx MIPS SoC's, out of the staging directory. No changes to
spi: mt7621: Move SPI driver out of staging This patch moves the MT7621 SPI driver, which is used on some Ralink / MediaTek MT76xx MIPS SoC's, out of the staging directory. No changes to the source code are done in this patch. This driver version was tested successfully on an MT7688 based platform with an SPI NOR on CS0 and an SPI NAND on CS1 without any issues (so far). This patch also documents the devicetree bindings for the MT7621 SPI device driver. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Rob Herring <robh@kernel.org> Cc: Mark Brown <broonie@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: NeilBrown <neil@brown.name> Cc: Sankalp Negi <sankalpnegi2310@gmail.com> Cc: Chuanhong Guo <gch981213@gmail.com> Cc: John Crispin <john@phrozen.org> Cc: Armando Miraglia <arma2ff0@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v5.0.4, v5.0.3, v4.19.29, v5.0.2, v4.19.28, v5.0.1, v4.19.27, v5.0, v4.19.26, v4.19.25, v4.19.24 |
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484a9a68 |
| 19-Feb-2019 |
Yash Shah <yash.shah@sifive.com> |
spi: sifive: Add driver for the SiFive SPI controller Add driver for the SiFive SPI controller on the HiFive Unleashed board. Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
spi: sifive: Add driver for the SiFive SPI controller Add driver for the SiFive SPI controller on the HiFive Unleashed board. Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Emil Renner Berthing <kernel@esmil.dk> Signed-off-by: Yash Shah <yash.shah@sifive.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.19.23, v4.19.22, v4.19.21, v4.19.20, v4.19.19, v4.19.18, v4.19.17, v4.19.16 |
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a5356aef |
| 15-Jan-2019 |
Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com> |
spi: spi-mem: Add driver for NXP FlexSPI controller - Add driver for NXP FlexSPI host controller (0) What is the FlexSPI controller? FlexSPI is a flexsible SPI host controller
spi: spi-mem: Add driver for NXP FlexSPI controller - Add driver for NXP FlexSPI host controller (0) What is the FlexSPI controller? FlexSPI is a flexsible SPI host controller which supports two SPI channels and up to 4 external devices. Each channel supports Single/Dual/Quad/Octal mode data transfer (1/2/4/8 bidirectional data lines) i.e. FlexSPI acts as an interface to external devices, maximum 4, each with up to 8 bidirectional data lines. It uses new SPI memory interface of the SPI framework to issue flash memory operations to up to four connected flash devices (2 buses with 2 CS each). (1) Tested this driver with the mtd_debug and JFFS2 filesystem utility on NXP LX2160ARDB and LX2160AQDS targets. LX2160ARDB is having two NOR slave device connected on single bus A i.e. A0 and A1 (CS0 and CS1). LX2160AQDS is having two NOR slave device connected on separate buses one flash on A0 and second on B1 i.e. (CS0 and CS3). Verified this driver on following SPI NOR flashes: Micron, mt35xu512ab, [Read - 1 bit mode] Cypress, s25fl512s, [Read - 1/2/4 bit mode] Signed-off-by: Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Tested-by: Ashish Kumar <Ashish.Kumar@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.19.15, v4.19.14 |
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#
84d04318 |
| 07-Jan-2019 |
Frieder Schrempf <frieder.schrempf@kontron.de> |
spi: Add a driver for the Freescale/NXP QuadSPI controller This driver is derived from the SPI NOR driver at mtd/spi-nor/fsl-quadspi.c. It uses the new SPI memory interface of the SP
spi: Add a driver for the Freescale/NXP QuadSPI controller This driver is derived from the SPI NOR driver at mtd/spi-nor/fsl-quadspi.c. It uses the new SPI memory interface of the SPI framework to issue flash memory operations to up to four connected flash chips (2 buses with 2 CS each). The controller does not support generic SPI messages. This patch also disables the build of the "old" driver and reuses its Kconfig option CONFIG_SPI_FSL_QUADSPI to replace it. Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> Acked-by: Han Xu <han.xu@nxp.com> Reviewed-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> Tested-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com> Tested-by: Han Xu <han.xu@nxp.com> Reviewed-by: Boris Brezillon <bbrezillon@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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74ff666b |
| 20-Dec-2018 |
Mark Brown <broonie@kernel.org> |
Merge remote-tracking branches 'spi/topic/mem' and 'spi/topic/mtd' into spi-next
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Revision tags: v4.19.13, v4.19.12, v4.19.11, v4.19.10, v4.19.9, v4.19.8, v4.19.7, v4.19.6, v4.19.5, v4.19.4, v4.18.20, v4.19.3, v4.18.19, v4.19.2 |
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2a22f1b3 |
| 12-Nov-2018 |
Tomer Maimon <tmaimon77@gmail.com> |
spi: npcm: add NPCM PSPI controller driver Add Nuvoton NPCM BMC Peripheral SPI controller driver. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Mark Brown <br
spi: npcm: add NPCM PSPI controller driver Add Nuvoton NPCM BMC Peripheral SPI controller driver. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.18.18 |
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0e6aae08 |
| 05-Nov-2018 |
Piotr Bugalski <bugalski.piotr@gmail.com> |
spi: Add QuadSPI driver for Atmel SAMA5D2 Kernel contains QSPI driver strongly tied to MTD and nor-flash memory. New spi-mem interface allows usage also other memory types, especially
spi: Add QuadSPI driver for Atmel SAMA5D2 Kernel contains QSPI driver strongly tied to MTD and nor-flash memory. New spi-mem interface allows usage also other memory types, especially much larger NAND with SPI interface. This driver works as SPI controller and is not related to MTD, however can work with NAND-flash or other peripherals using spi-mem interface. Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Piotr Bugalski <bugalski.piotr@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.18.17, v4.19.1, v4.19, v4.18.16, v4.18.15 |
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b942d80b |
| 16-Oct-2018 |
Mason Yang <masonccyang@mxic.com.tw> |
spi: Add MXIC controller driver Add a driver for Macronix SPI controller IP. Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> Reviewed-by: Boris Brezillon <boris.brezillon@bo
spi: Add MXIC controller driver Add a driver for Macronix SPI controller IP. 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>
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3ea172c8 |
| 25-Oct-2018 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers - Add support for USART SPI to AT91* N
Merge tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers - Add support for USART SPI to AT91* New Functionality - Add support for Audio CODECs to motorola-cpcap Fix-ups - DT documentation fix-ups; atmel-usart - Staticise functions/structs; spi-at91-usart, arizona-core - Constify; ti-lmu - Fix memory leaks; menelaus - Change device 'wake-up' status; ti_am335x_tscadc, max8997 - Power Management (suspend/resume) semantic changes; ti_am335x_adc, cros_ec, max8997 - SPDX churn; sec-core (+ headers), max* (+ headers), intel* (+ headers), - Trivial (whitespace, email addresses, alphabetisise); Kconfig, adp5520, intel_soc_pmic_* - Build as module; sec-irq - Use new %pOFn printk format for device_node.name; max77620 - Remove unused code; madera - Use generic MACROs; intel_msic, intel_soc_pmic_crc - Move to GPIOD; ti-lmu - Use managed resources; ti-lmu Bug Fixes - Add missing headers; at91-usart - Prevent device from entering low-power mode; arizona-core - Poll for BOOT_DONE to avoid still-booting NACK; madera-core - Prevent ADC read from shutting down device; mc13xxx-core" * tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits) mfd: cros_ec: Avoid unneeded internal declaration warning mfd: ti-lmu: Use of_device_get_match_data() helper mfd: ti-lmu: Use managed resource for everything mfd: ti-lmu: Switch to GPIOD mfd: ti-lmu: constify mfd_cell tables mfd: max8997: Disable interrupt handling for suspend/resume cycle mfd: max8997: Enale irq-wakeup unconditionally mfd: arizona: Make array mclk_name static, shrinks object size MAINTAINERS: Add myself as designated reviewer of Intel MFD PMIC mfd: Convert Intel PMIC drivers to use SPDX identifier 1;5201;0c Reduce size of duplicated comments by switching to use SPDX identifier. mfd: Sort headers alphabetically for Intel PMIC drivers mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well mfd: intel_soc_pmic_crc: Use REGMAP_IRQ_REG() macro mfd: intel_soc_pmic_crc: Use DEFINE_RES_IRQ_NAMED() macro mfd: intel_msic: Use DEFINE_RES_IRQ() macro mfd: motorola-cpcap: Add audio-codec support mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values mfd: madera: Remove unused forward reference mfd: max77620: Convert to using %pOFn instead of device_node.name mfd: madera: Don't use regmap_read_poll_timeout to poll for BOOT_DONE ...
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Revision tags: v4.18.14, v4.18.13 |
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c530cd1d |
| 05-Oct-2018 |
Ludovic Barre <ludovic.barre@st.com> |
spi: spi-mem: add stm32 qspi controller The qspi controller is a specialized communication interface targeting single, dual or quad SPI Flash memories (NOR/NAND). It can operate
spi: spi-mem: add stm32 qspi controller The qspi controller is a specialized communication interface targeting single, dual or quad SPI Flash memories (NOR/NAND). It can operate in any of the following modes: -indirect mode: all the operations are performed using the quadspi registers -read memory-mapped mode: the external Flash memory is mapped to the microcontroller address space and is seen by the system as if it was an internal memory tested on: -NOR: mx66l51235l -NAND: MT29F2G01ABAGD Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.18.12 |
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561de45f |
| 03-Oct-2018 |
Girish Mahadevan <girishm@codeaurora.org> |
spi: spi-geni-qcom: Add SPI driver support for GENI based QUP This driver supports GENI based SPI Controller in the Qualcomm SOCs. The Qualcomm Generic Interface (GENI) is a programmable
spi: spi-geni-qcom: Add SPI driver support for GENI based QUP This driver supports GENI based SPI Controller in the Qualcomm SOCs. The Qualcomm Generic Interface (GENI) is a programmable module supporting a wide range of serial interfaces including SPI. This driver supports SPI operations using FIFO mode of transfer. Signed-off-by: Girish Mahadevan <girishm@codeaurora.org> Signed-off-by: Dilip Kota <dkota@codeaurora.org> Signed-off-by: Alok Chauhan <alokc@codeaurora.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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#
04000dc6 |
| 02-Oct-2018 |
Girish Mahadevan <girishm@codeaurora.org> |
spi: Introduce new driver for Qualcomm QuadSPI controller New driver for Qualcomm QuadSPI(QSPI) controller that is used to communicate with slaves such as flash memory devices. The QSPI
spi: Introduce new driver for Qualcomm QuadSPI controller New driver for Qualcomm QuadSPI(QSPI) controller that is used to communicate with slaves such as flash memory devices. The QSPI controller can operate in 2 or 4 wire mode but only supports SPI Mode 0. The controller can also operate in Single or Dual data rate modes. 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: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.18.11 |
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#
805be7dd |
| 28-Sep-2018 |
Leilk Liu <leilk.liu@mediatek.com> |
spi: mediatek: add spi slave for Mediatek MT2712 This patch adds basic spi slave for MT2712. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie
spi: mediatek: add spi slave for Mediatek MT2712 This patch adds basic spi slave for MT2712. Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.18.10, v4.18.9, v4.18.7, v4.18.6, v4.18.5, v4.17.18, v4.18.4, v4.18.3, v4.17.17, v4.18.2, v4.17.16, v4.17.15, v4.18.1, v4.18, v4.17.14, v4.17.13, v4.17.12, v4.17.11, v4.17.10, v4.17.9, v4.17.8, v4.17.7 |
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#
e1892546 |
| 13-Jul-2018 |
Radu Pirea <radu.pirea@microchip.com> |
spi: at91-usart: Add driver for at91-usart as SPI This is the driver for at91-usart in spi mode. The USART IP can be configured to work in many modes and one of them is SPI. The
spi: at91-usart: Add driver for at91-usart as SPI This is the driver for at91-usart in spi mode. The USART IP can be configured to work in many modes and one of them is SPI. The driver was tested on sama5d3-xplained and sama5d4-xplained boards with enc28j60 ethernet controller as slave. Signed-off-by: Radu Pirea <radu.pirea@microchip.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviwed-by: Mark Brown <broonie@kernel.org> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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e7d973a3 |
| 16-Aug-2018 |
Lanqing Liu <lanqing.liu@spreadtrum.com> |
spi: sprd: Add SPI driver for Spreadtrum SC9860 This patch adds the SPI controller driver for Spreadtrum SC9860 platform. Signed-off-by: Lanqing Liu <lanqing.liu@spreadtrum.com>
spi: sprd: Add SPI driver for Spreadtrum SC9860 This patch adds the SPI controller driver for Spreadtrum SC9860 platform. Signed-off-by: Lanqing Liu <lanqing.liu@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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#
5ba155a4 |
| 01-Aug-2018 |
Keiji Hayashibara <hayashibara.keiji@socionext.com> |
spi: add SPI controller driver for UniPhier SoC Add SPI controller driver implemented in Socionext UniPhier SoCs. UniPhier SoCs have two types SPI controllers; SCSSI supports a
spi: add SPI controller driver for UniPhier SoC Add SPI controller driver implemented in Socionext UniPhier SoCs. UniPhier SoCs have two types SPI controllers; SCSSI supports a single channel, and MCSSI supports multiple channels. This driver supports SCSSI only. This controller has 32bit TX/RX FIFO with depth of eight entry, and supports the SPI master mode only. This commit is implemented in PIO transfer mode, not DMA transfer. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.17.6, v4.17.5, v4.17.4, v4.17.3, v4.17.2, v4.17.1, v4.17 |
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#
c36ff266 |
| 26-Apr-2018 |
Boris Brezillon <boris.brezillon@bootlin.com> |
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not f
spi: Extend the core to ease integration of SPI memory controllers Some controllers are exposing high-level interfaces to access various kind of SPI memories. Unfortunately they do not fit in the current spi_controller model and usually have drivers placed in drivers/mtd/spi-nor which are only supporting SPI NORs and not SPI memories in general. This is an attempt at defining a SPI memory interface which works for all kinds of SPI memories (NORs, NANDs, SRAMs). Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com> Reviewed-by: Frieder Schrempf <frieder.schrempf@exceet.de> Tested-by: Frieder Schrempf <frieder.schrempf@exceet.de> Signed-off-by: Mark Brown <broonie@kernel.org>
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#
055ed0da |
| 10-May-2018 |
Rafał Miłecki <rafal@milecki.pl> |
spi: remove forgotten CONFIG_SPI_BCM53XX I accidentally sent an early version of patch removing spi-bcm53xx driver which got rid of .c and .h files *only*. I amended local commit but
spi: remove forgotten CONFIG_SPI_BCM53XX I accidentally sent an early version of patch removing spi-bcm53xx driver which got rid of .c and .h files *only*. I amended local commit but forgot to re-format the patch. This commit removes leftovers of dropped driver. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: Mark Brown <broonie@kernel.org>
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Revision tags: v4.16 |
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#
47838669 |
| 09-Mar-2018 |
Arnd Bergmann <arnd@arndb.de> |
spi: remove blackfin related host drivers The blackfin architecture is getting removed, so these won't be needed any more. Acked-by: Mark Brown <broonie@kernel.org> Acked-by
spi: remove blackfin related host drivers The blackfin architecture is getting removed, so these won't be needed any more. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Aaron Wu <aaron.wu@analog.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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#
abbdb5ce |
| 10-Nov-2017 |
Mark Brown <broonie@kernel.org> |
Merge remote-tracking branches 'spi/topic/sh-msiof', 'spi/topic/slave', 'spi/topic/spreadtrum' and 'spi/topic/tegra114' into spi-next
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Revision tags: v4.15, v4.13.16, v4.14 |
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#
b2441318 |
| 01-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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