linux-stable.git/drivers/spi/Kconfig, branch linux-5.2.y

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

spi: spi-mem: Add support for Zynq QSPI controller

2019-04-05T03:24:49+00:00

Add support for QSPI controller driver used by Xilinx Zynq SOC.

Signed-off-by: Naga Sureshkumar Relli 
Signed-off-by: Mark Brown

spi: mt7621: Move SPI driver out of staging

2019-03-25T12:13:34+00:00

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 
Cc: Rob Herring 
Cc: Mark Brown 
Cc: Greg Kroah-Hartman 
Cc: NeilBrown 
Cc: Sankalp Negi 
Cc: Chuanhong Guo 
Cc: John Crispin 
Cc: Armando Miraglia 
Signed-off-by: Mark Brown

spi: sifive: Add driver for the SiFive SPI controller

2019-02-19T15:28:53+00:00

Add driver for the SiFive SPI controller
on the HiFive Unleashed board.

Signed-off-by: Palmer Dabbelt 
Signed-off-by: Emil Renner Berthing 
Signed-off-by: Yash Shah 
Signed-off-by: Mark Brown

spi: Kconfig: imx: Update the help text to make it more generic

2019-01-28T17:58:11+00:00

The spi-imx driver supports both master and slave modes, so update
the help text to make it more generic.

Signed-off-by: Fabio Estevam 
Signed-off-by: Mark Brown

spi: spi-mem: Add driver for NXP FlexSPI controller

2019-01-28T12:27:44+00:00

- 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 
Reviewed-by: Frieder Schrempf 
Reviewed-by: Boris Brezillon 
Tested-by: Ashish Kumar 
Signed-off-by: Mark Brown

spi: ath79: Enable support for compile test

2019-01-17T12:34:47+00:00

To allow building this driver in compile test we need to remove all
dependency on headers from arch/mips/include. To allow this we
explicitly define all the registers locally instead of using
ar71xx_regs.h and we move the platform data struct definition to
include/linux/platform_data/spi-ath79.h.

Signed-off-by: Alban Bedel 
Signed-off-by: Mark Brown

spi: ath79: Simplify ath79_spi_chipselect()

2019-01-17T12:34:39+00:00

First of all this callback was slightly misused to setup the clock
polarity at the beginning of a transfer. Beside being at the wrong
place, it is also useless as only SPI mode 1 is supported. Instead
just make sure the base value used for IOC is suitable to start a
transfer by clearing the clock and data bits during the controller
setup.

This also remove the last direct usage of the GPIO API, so we can
remove the direct dependency on GPIOLIB.

Signed-off-by: Alban Bedel 
Signed-off-by: Mark Brown

spi: fix typo in SPI_STM32 help text

2019-01-07T18:24:09+00:00

Fix typo from STMicroelectonics to STMicroelectronics.

Signed-off-by: Cezary Gapinski 
Signed-off-by: Mark Brown

spi: add cpu details to fsl-dspi Kconfig help

2019-01-07T18:15:41+00:00

Add some cpu families that are actually using the fsl-dspi module
in the related Kconfig description.

Signed-off-by: Angelo Dureghello 
Signed-off-by: Mark Brown