linux.git/drivers/spi/Makefile, branch v5.12

spi: realtek-rtl: Add support for Realtek RTL838x/RTL839x SPI controllers

2021-02-04T18:45:57+00:00

This driver likely also supports earlier (RTL8196) and later (RTL93xx)
SoCs.

The SPI hardware in these SoCs is specifically intended for connecting NOR
bootflash chips, and only used for that in dozens of examined devices.
However boiled down to basics, it's really just a half-duplex SPI
controller.

The hardware appears to have a vestigial second chip-select control, but
it hasn't been seen in the wild and is thus not supported.

Signed-off-by: Bert Vermeulen 
Link: https://lore.kernel.org/r/20210120135928.246054-3-bert@biot.com
Signed-off-by: Mark Brown

spi: remove sirf prima/atlas driver

2021-01-21T18:14:28+00:00

The CSR SiRF prima2/atlas platforms are getting removed, so this driver
is no longer needed.

Cc: Barry Song 
Signed-off-by: Arnd Bergmann 
Acked-by: Barry Song 
Link: https://lore.kernel.org/r/20210120161658.3820610-1-arnd@kernel.org
Signed-off-by: Mark Brown

Merge series "Remove ARM platform efm32" from Uwe Kleine-König

2021-01-15T18:17:11+00:00

Uwe Kleine-König :

From: Uwe Kleine-König 

Hello,

there are no known active users of the efm32 platform. Given that the
only machine that is supported has only 4 MiB of RAM its use is also
quite limited.

Back then it served as the platform to develop ARMv7-M support in Linux
which was quite fun and still is a blissful memory.

Still given that the code serves no purpose and this probably won't
change anytime soon, remove all platform support.

I'm unsure what to do with the device tree bindings. Should we delete
them, too?

Best regards
Uwe

Uwe Kleine-König (7):
  ARM: drop efm32 platform
  clk: Drop unused efm32gg driver
  clocksource: Drop unused efm32 timer code
  spi: Drop unused efm32 bus driver
  i2c: Drop unused efm32 bus driver
  tty: Drop unused efm32 serial driver
  MAINTAINERS: Remove deleted platform efm32

 MAINTAINERS                              |   7 -
 arch/arm/Kconfig                         |  10 +-
 arch/arm/Kconfig.debug                   |  17 -
 arch/arm/Makefile                        |   1 -
 arch/arm/boot/dts/Makefile               |   2 -
 arch/arm/boot/dts/efm32gg-dk3750.dts     |  88 ---
 arch/arm/boot/dts/efm32gg.dtsi           | 177 -----
 arch/arm/configs/efm32_defconfig         |  98 ---
 arch/arm/include/debug/efm32.S           |  45 --
 arch/arm/mach-efm32/Makefile             |   2 -
 arch/arm/mach-efm32/Makefile.boot        |   4 -
 arch/arm/mach-efm32/dtmachine.c          |  16 -
 arch/arm/mm/Kconfig                      |   1 -
 drivers/clk/Makefile                     |   1 -
 drivers/clk/clk-efm32gg.c                |  84 ---
 drivers/clocksource/Kconfig              |   9 -
 drivers/clocksource/Makefile             |   1 -
 drivers/clocksource/timer-efm32.c        | 278 --------
 drivers/i2c/busses/Kconfig               |   7 -
 drivers/i2c/busses/Makefile              |   1 -
 drivers/i2c/busses/i2c-efm32.c           | 469 -------------
 drivers/spi/Kconfig                      |   7 -
 drivers/spi/Makefile                     |   1 -
 drivers/spi/spi-efm32.c                  | 462 ------------
 drivers/tty/serial/Kconfig               |  13 -
 drivers/tty/serial/Makefile              |   1 -
 drivers/tty/serial/efm32-uart.c          | 852 -----------------------
 include/linux/platform_data/efm32-spi.h  |  15 -
 include/linux/platform_data/efm32-uart.h |  19 -
 include/uapi/linux/serial_core.h         |   3 -
 30 files changed, 1 insertion(+), 2690 deletions(-)
 delete mode 100644 arch/arm/boot/dts/efm32gg-dk3750.dts
 delete mode 100644 arch/arm/boot/dts/efm32gg.dtsi
 delete mode 100644 arch/arm/configs/efm32_defconfig
 delete mode 100644 arch/arm/include/debug/efm32.S
 delete mode 100644 arch/arm/mach-efm32/Makefile
 delete mode 100644 arch/arm/mach-efm32/Makefile.boot
 delete mode 100644 arch/arm/mach-efm32/dtmachine.c
 delete mode 100644 drivers/clk/clk-efm32gg.c
 delete mode 100644 drivers/clocksource/timer-efm32.c
 delete mode 100644 drivers/i2c/busses/i2c-efm32.c
 delete mode 100644 drivers/spi/spi-efm32.c
 delete mode 100644 drivers/tty/serial/efm32-uart.c
 delete mode 100644 include/linux/platform_data/efm32-spi.h
 delete mode 100644 include/linux/platform_data/efm32-uart.h

base-commit: 5c8fe583cce542aa0b84adc939ce85293de36e5e
--
2.29.2

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spi: Drop unused efm32 bus driver

2021-01-15T17:25:37+00:00

Support for this machine was just removed, so drop the now unused spi
bus driver, too.

Signed-off-by: Uwe Kleine-König 
Link: https://lore.kernel.org/r/20210114151630.128830-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown

spi: tegra210-quad: Add support for Tegra210 QSPI controller

2021-01-06T13:09:30+00:00

Tegra SoC has a Quad SPI controller starting from Tegra210.

This patch adds support for Tegra210 QSPI controller.

Signed-off-by: Sowjanya Komatineni 
Link: https://lore.kernel.org/r/1608585459-17250-5-git-send-email-skomatineni@nvidia.com
Signed-off-by: Mark Brown

spi: txx9: Remove driver

2021-01-05T15:42:23+00:00

CPU support for TX49xx is getting removed, so remove support SPI driver
for it.

Signed-off-by: Thomas Bogendoerfer 
Link: https://lore.kernel.org/r/20210105140305.141401-5-tsbogend@alpha.franken.de
Signed-off-by: Mark Brown

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2020-10-24T17:33:08+00:00

Pull ARM SoC platform updates from Olof Johansson:
 "SoC changes, a substantial part of this is cleanup of some of the
  older platforms that used to have a bunch of board files.

  In particular:

   - Remove non-DT i.MX platforms that haven't seen activity in years,
     it's time to remove them.

   - A bunch of cleanup and removal of platform data for TI/OMAP
     platforms, moving over to genpd for power/reset control (yay!)

   - Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
     closer to multiplatform support (not quite there yet, but getting
     close).

  There are a few other changes too, smaller fixlets, etc. For new
  platform support, the primary ones are:

   - New SoC: Hisilicon SD5203, ARM926EJ-S platform.

   - Cpufreq support for i.MX7ULP"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
  ARM: mstar: Select MStar intc
  ARM: stm32: Replace HTTP links with HTTPS ones
  ARM: debug: add UART early console support for SD5203
  ARM: hisi: add support for SD5203 SoC
  ARM: omap3: enable off mode automatically
  clk: imx: imx35: Remove mx35_clocks_init()
  clk: imx: imx31: Remove mx31_clocks_init()
  clk: imx: imx27: Remove mx27_clocks_init()
  ARM: imx: Remove unused definitions
  ARM: imx35: Retrieve the IIM base address from devicetree
  ARM: imx3: Retrieve the AVIC base address from devicetree
  ARM: imx3: Retrieve the CCM base address from devicetree
  ARM: imx31: Retrieve the IIM base address from devicetree
  ARM: imx27: Retrieve the CCM base address from devicetree
  ARM: imx27: Retrieve the SYSCTRL base address from devicetree
  ARM: s3c64xx: bring back notes from removed debug-macro.S
  ARM: s3c24xx: fix Wunused-variable warning on !MMU
  ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
  MAINTAINERS: mark linux-samsung-soc list non-moderated
  ARM: imx: Remove remnant board file support pieces
  ...

spi: dw: Add Baikal-T1 SPI Controller glue driver

2020-10-08T22:00:22+00:00

Baikal-T1 is equipped with three DW APB SSI-based MMIO SPI controllers.
Two of them are pretty much normal: with IRQ, DMA, FIFOs of 64 words
depth, 4x CSs, but the third one as being a part of the Baikal-T1 System
Boot Controller has got a very limited resources: no IRQ, no DMA, only a
single native chip-select and Tx/Rx FIFO with just 8 words depth
available. In order to provide a transparent initial boot code execution
the Boot SPI controller is also utilized by an vendor-specific IP-block,
which exposes an SPI flash direct mapping interface. Since both direct
mapping and SPI controller normal utilization are mutual exclusive only
one of these interfaces can be used to access an external SPI slave
device. That's why a dedicated mux is embedded into the System Boot
Controller. All of that is taken into account in the Baikal-T1-specific DW
APB SSI glue driver implemented by means of the DW SPI core module.

Co-developed-by: Ramil Zaripov 
Signed-off-by: Ramil Zaripov 
Signed-off-by: Serge Semin 
Link: https://lore.kernel.org/r/20201007235511.4935-22-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Mark Brown

ARM: s3c24xx: move spi fiq handler into platform

2020-08-19T19:45:38+00:00

The fiq handler needs access to some register definitions that
should not be used directly by device drivers.

Since this is closely related to the irqchip driver anyway,
move it into the same place.

Signed-off-by: Arnd Bergmann 
[krzk: Add a header guard in include/linux/spi/s3c24xx-fiq.h, fix
       SPDX comment style, update maintainer's entry]
Co-developed-by: Krzysztof Kozlowski 
Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20200806182059.2431-23-krzk%40kernel.org
Acked-by: Mark Brown

Merge series "mtd: spi-nor: Move cadence-qaudspi to spi-mem framework" from Vignesh Raghavendra :

2020-06-19T13:26:55+00:00

This series is a subset of "[PATCH v12 0/4] spi: cadence-quadspi: Add
support for the Cadence QSPI controller" by Ramuthevar,Vadivel MuruganX
 that intended to move
cadence-quadspi driver to spi-mem framework

Those patches were trying to accomplish too many things in a single set
of patches and need to split into smaller patches. This is reduced
version of above series.

Changes that are intended to make migration easy are split into separate
patches. Patches 1 to 3 drop features that cannot be supported under
spi-mem at the moment (backward compatibility is maintained).
Patch 4-5 are trivial cleanups. Patch 6 does the actual conversion to
spi-mem and patch 7 moves the driver to drivers/spi folder.

I have tested both INDAC mode (used by non TI platforms like Altera
SoCFPGA) and DAC mode (used by TI platforms) on TI EVMs.

Patches to move move bindings over to
"Documentation/devicetree/bindings/spi/" directory and also conversion
of bindig doc to YAML will be posted separately.  Support for Intel
platform would follow that.

Resend v3:
Rebased onto v5.7-c1

v3:
Split handling of probe deferral into separate patch (out of 5/6)
Split dropping of redundant WREN to separate patch (out of 5/6)
Fix a possible memleak due to lack of spi_master_put()
Parse all SPI slave nodes in cqspi_setup_flash()
Address misc comments from Tudor on v2
Rebase onto latest spi-nor/next

v2:
Rework patch 1/6 to keep "cdns,is-decoded-cs" property supported.

Ramuthevar Vadivel Murugan (2):
  mtd: spi-nor: Convert cadence-quadspi to use spi-mem framework
  spi: Move cadence-quadspi driver to drivers/spi/

Vignesh Raghavendra (6):
  mtd: spi-nor: cadence-quadspi: Make driver independent of flash
    geometry
  mtd: spi-nor: cadence-quadspi: Provide a way to disable DAC mode
  mtd: spi-nor: cadence-quadspi: Don't initialize rx_dma_complete on
    failure
  mtd: spi-nor: cadence-quadspi: Fix error path on failure to acquire
    reset lines
  mtd: spi-nor: cadence-quadspi: Handle probe deferral while requesting
    DMA channel
  mtd: spi-nor: cadence-quadspi: Drop redundant WREN in erase path

 drivers/mtd/spi-nor/controllers/Kconfig       |  11 -
 drivers/mtd/spi-nor/controllers/Makefile      |   1 -
 drivers/spi/Kconfig                           |  11 +
 drivers/spi/Makefile                          |   1 +
 .../spi-cadence-quadspi.c}                    | 541 +++++++-----------
 5 files changed, 222 insertions(+), 343 deletions(-)
 rename drivers/{mtd/spi-nor/controllers/cadence-quadspi.c => spi/spi-cadence-quadspi.c} (74%)

base-commit: b3a9e3b9622ae10064826dccb4f7a52bd88c7407

--
2.26.2

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