xiaomi-sm8450/android_kernel_xiaomi_sm8450
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b5932f5c68e5fbe74fb7a27b4d0faf919e1e1642
android_kernel_xiaomi_sm8450/drivers/spi
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Boris Brezillon b5932f5c68 spi: Make support for regular transfers optional when ->mem_ops != NULL 
Some SPI/QuadSPI controllers only expose a high-level SPI memory
interface, thus preventing any regular SPI transfers from being done.

In that case, SPI controller drivers can leave all ->transfer_xxx()
hooks empty and only implement the spi_mem_ops interface.

Adjust the core to allow such situations:
- extend spi_controller_check_ops() to accept situations where all
  ->transfer_xxx() pointers are NULL only if ->mem_ops != NULL
- make sure we do not initialize the SPI message queue if
  ctlr->transfer_one and ctlr->transfer_one_message are missing
- return -ENOTSUPP if someone tries to do a regular SPI transfer on
  a controller that does not support it

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>
2018-05-11 11:33:15 +09:00
..
internals.h
spi: Add an helper to flush the message queue
2018-04-23 15:48:18 +01:00
Kconfig
spi: Extend the core to ease integration of SPI memory controllers
2018-05-11 11:32:43 +09:00
Makefile
spi: Extend the core to ease integration of SPI memory controllers
2018-05-11 11:32:43 +09:00
spi-altera.c
spi: altera: Consolidate TX/RX data register access
2017-08-16 11:53:31 +01:00
spi-armada-3700.c
Merge remote-tracking branches 'spi/topic/a3700', 'spi/topic/atmel', 'spi/topic/bcm53xx', 'spi/topic/davinci' and 'spi/topic/dw' into spi-next
2018-01-26 17:57:24 +00:00
spi-ath79.c
spi/ath79: Fix checkpatch warnings
2017-07-17 12:09:38 +01:00
spi-atmel.c
spi: spi-atmel: Use correct enum for DMA transfer direction
2018-03-28 10:42:48 +08:00
spi-au1550.c
spi: au1550: Simplify au1550_spi_setupxfer()
2015-09-16 20:54:54 +01:00
spi-axi-spi-engine.c
spi: spi-axi: fix potential use-after-free after deregistration
2017-10-31 11:15:10 +00:00
spi-bcm63xx-hsspi.c
spi/bcm63xx-hspi: Enable the clock before calling clk_get_rate().
2018-04-26 12:41:22 +01:00
spi-bcm63xx.c
spi/bcm63xx: fix error return code in bcm63xx_spi_probe()
2017-08-08 11:36:35 +01:00
spi-bcm2835.c
spi: bcm2835: Remove unnecessary workaround to call gpio_set_value
2016-02-15 20:43:39 +00:00
spi-bcm2835aux.c
spi: bcm2835aux: Avoid 64-bit arithmetic in xfer len calc
2018-02-14 16:04:58 +00:00
spi-bcm-qspi.c
spi: bcm-qspi: fIX some error handling paths
2018-03-14 09:37:28 -07:00
spi-bcm-qspi.h
spi: iproc-qspi: Add Broadcom iProc SoCs support
2016-09-24 20:03:25 +01:00
spi-bitbang-txrx.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
spi-bitbang.c
spi: bitbang: switch to the generic implementation of transfer_one_message
2015-10-05 14:55:56 +01:00
spi-brcmstb-qspi.c
spi: brcmstb-qspi: Broadcom settop platform driver
2016-09-14 18:03:32 +01:00
spi-butterfly.c
spi: butterfly: use new parport device model
2015-12-02 19:38:16 +00:00
spi-cadence.c
spi: simplify getting .drvdata
2018-04-20 17:53:20 +01:00
spi-cavium-octeon.c
spi: octeon: Split driver into Octeon specific and common parts
2016-07-24 21:54:29 +01:00
spi-cavium-thunderx.c
spi: spi-cavium-thunderx: Add missing clk_disable_unprepare()
2016-08-24 12:37:43 +01:00
spi-cavium.c
spi: octeon: Split driver into Octeon specific and common parts
2016-07-24 21:54:29 +01:00
spi-cavium.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
spi-clps711x.c
spi: clps711x: Driver refactor
2016-07-07 11:44:43 +02:00
spi-coldfire-qspi.c
spi: spi-coldfire-qspi: enable RuntimePM before registering to the core
2015-10-12 17:02:08 +01:00
spi-davinci.c
spi: davinci: Initialize dspi->done before any possible use of it
2017-12-12 10:51:52 +00:00
spi-dln2.c
spi: Drop duplicate code to set master->dev.parent
2016-04-26 11:56:09 +01:00
spi-dw-mid.c
spi: dw: Convert to generalized SPI controller API
2018-02-12 12:04:16 +00:00
spi-dw-mmio.c
spi: dw: Disable clock after unregistering the host
2017-04-18 19:16:49 +01:00
spi-dw-pci.c
spi: dw-pci: Spelling s/paltforms/platforms/g
2016-05-11 18:26:19 +01:00
spi-dw.c
spi: dw: Convert to generalized SPI controller API
2018-02-12 12:04:16 +00:00
spi-dw.h
spi: dw: Convert to generalized SPI controller API
2018-02-12 12:04:16 +00:00
spi-efm32.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-ep93xx.c
spi: spi-ep93xx: use the default master transfer queueing mechanism
2017-08-09 17:53:14 +01:00
spi-falcon.c
spi: spi-falcon: drop check of boot select
2017-09-01 11:33:22 +01:00
spi-fsl-cpm.c
QE: Move QE from arch/powerpc to drivers/soc
2015-12-22 17:12:56 -06:00
spi-fsl-cpm.h
…
spi-fsl-dspi.c
spi: spi-fsl-dspi: account for const type of of_device_id.data
2018-01-03 12:19:24 +00:00
spi-fsl-espi.c
spi: fsl-espi: fix ioread16/iowrite16 endianness
2016-12-01 18:50:59 +00:00
spi-fsl-lib.c
spi: fsl-(e)spi: simplify cleanup code
2015-08-28 18:15:18 +01:00
spi-fsl-lib.h
spi: fsl-espi: separate fsl-espi from fsl-lib completely
2016-11-14 11:21:48 +00:00
spi-fsl-lpspi.c
spi: lpspi: Switch to SPDX identifier
2018-05-03 10:28:08 +09:00
spi-fsl-spi.c
Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/lantiq' into spi-next
2017-04-26 15:58:04 +01:00
spi-fsl-spi.h
…
spi-gpio.c
spi: spi-gpio: Rewrite to use GPIO descriptors
2018-02-14 16:02:41 +00:00
spi-img-spfi.c
spi: img-spfi: Remove spi_master_put in img_spfi_remove()
2016-07-27 19:00:16 +01:00
spi-imx.c
spi: imx: Switch to SPDX identifier
2018-05-03 10:27:21 +09:00
spi-iproc-qspi.c
spi: iproc-qspi: Add Broadcom iProc SoCs support
2016-09-24 20:03:25 +01:00
spi-jcore.c
spi: jcore: disable ref_clk after getting its rate
2018-03-18 17:57:42 -07:00
spi-lantiq-ssc.c
Merge remote-tracking branches 'spi/topic/devprop', 'spi/topic/fsl', 'spi/topic/fsl-dspi', 'spi/topic/imx' and 'spi/topic/lantiq' into spi-next
2017-04-26 15:58:04 +01:00
spi-lm70llp.c
spi: lm70llp: remove printk
2015-12-07 20:09:09 +00:00
spi-loopback-test.c
spi: loopback-test: implement testing with no CS
2017-07-26 13:08:56 +01:00
spi-lp8841-rtc.c
spi: lp-8841: return correct error code from probe
2016-02-26 11:06:38 +09:00
spi-mem.c
spi: Extend the core to ease integration of SPI memory controllers
2018-05-11 11:32:43 +09:00
spi-meson-spicc.c
spi: meson-spicc: Fix error handling in meson_spicc_probe()
2018-05-02 05:59:21 +09:00
spi-meson-spifc.c
spi: meson: Add GXBB compatible
2016-09-12 20:11:39 +01:00
spi-mpc52xx-psc.c
spi: spi-mpc52xx-psc: Remove deprecated create_singlethread_workqueue
2016-07-03 14:23:25 +02:00
spi-mpc52xx.c
spi: mpc52xx: Use gpio_is_valid()
2018-04-27 12:05:39 +01:00
spi-mpc512x-psc.c
spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally
2015-09-17 12:33:31 +01:00
spi-mt65xx.c
spi: mediatek: add spi support for mt2712 IC
2017-06-20 13:39:14 +01:00
spi-mxs.c
spi: mxs: Switch to SPDX identifier
2018-05-03 10:27:43 +09:00
spi-nuc900.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-oc-tiny.c
spi: oc-tiny: Use of_property_read_u32 instead of open-coding it
2015-09-16 19:16:01 +01:00
spi-omap2-mcspi.c
spi: omap2-mcspi: Idle hardware during suspend and resume
2018-05-02 06:06:17 +09:00
spi-omap-100k.c
spi: omap-100k: Rely on validations done by spi core
2015-09-17 12:34:20 +01:00
spi-omap-uwire.c
spi: omap-uwire: Remove needless bits_per_word and speed_hz tests
2015-09-17 12:33:58 +01:00
spi-orion.c
spi: orion: Prepare space for per-child options
2018-02-15 15:19:58 +00:00
spi-pic32-sqi.c
spi: pic32-sqi: use list_move_tail and list_move
2016-08-08 11:56:40 +01:00
spi-pic32.c
spi: pic32: fix spelling mistakes on macro names
2017-07-26 13:04:21 +01:00
spi-pl022.c
spi: pl022: constify amba_id
2017-08-23 17:12:05 +01:00
spi-ppc4xx.c
spi/ppc4xx: Use kcalloc() in spi_ppc4xx_of_probe()
2017-01-17 18:34:25 +00:00
spi-pxa2xx-dma.c
spi: pxa2xx: Use core message processing loop
2018-04-17 17:11:30 +01:00
spi-pxa2xx-pci.c
spi: pca2xx-pci: Allow MSI
2017-01-23 18:09:37 +00:00
spi-pxa2xx.c
spi: pxa2xx: check clk_prepare_enable() return value
2018-05-04 08:40:05 +09:00
spi-pxa2xx.h
spi: pxa2xx: Allow 64-bit DMA
2018-04-19 18:17:46 +01:00
spi-qup.c
spi: qup: fix 64-bit build warning
2017-08-10 15:50:23 +01:00
spi-rb4xx.c
spi: rb4xx: Fix checking return value of devm_ioremap_resource()
2015-05-01 17:35:54 +01:00
spi-rockchip.c
spi: rockchip: configure CTRLR1 according to size and data frame
2017-08-16 11:58:23 +01:00
spi-rspi.c
spi: rspi: use correct enum for DMA transfer direction
2018-03-20 09:02:12 +08:00
spi-s3c24xx-fiq.h
…
spi-s3c24xx-fiq.S
…
spi-s3c24xx.c
spi: bitbang: Replace spinlock by mutex
2015-09-17 12:13:40 +01:00
spi-s3c64xx.c
spi: s3c64xx: samsung: Remove support for Exynos5440
2018-04-25 13:52:02 +01:00
spi-sc18is602.c
spi: sc18is602: Add OF device ID table
2017-02-22 10:50:09 -08:00
spi-sh-hspi.c
spi: Remove FSF mailing addresses
2014-12-22 15:32:42 +00:00
spi-sh-msiof.c
spi: sh-msiof: Simplify calculation of divisors for transfer rate
2018-04-17 11:46:52 +01:00
spi-sh-sci.c
spi: drop owner assignment from platform_drivers
2014-10-20 16:21:36 +02:00
spi-sh.c
spi: spi-sh: fix error return code in spi_sh_probe()
2017-08-09 17:18:06 +01:00
spi-sirf.c
spi: sirf: account for const type of of_device_id.data
2018-01-03 11:38:46 +00:00
spi-slave-system-control.c
spi: slave: Add SPI slave handler controlling system state
2017-05-26 13:12:19 +01:00
spi-slave-time.c
spi: slave: Add SPI slave handler reporting uptime at previous message
2017-05-26 13:12:04 +01:00
spi-sprd-adi.c
spi: sprd: Add the support of restarting the system
2018-03-21 09:55:19 +08:00
spi-st-ssc4.c
spi: st-ssc4: whitespace cleanup
2017-05-26 12:41:07 +01:00
spi-stm32.c
spi: stm32: Fix error handling in stm32_spi_probe()
2018-04-17 11:46:23 +01:00
spi-sun4i.c
spi: sun4i: disable clocks in the remove function
2017-12-07 11:59:15 +00:00
spi-sun6i.c
spi: sun6i: disable/unprepare clocks on remove
2017-12-07 17:45:17 +00:00
spi-tegra20-sflash.c
spi: tegra20-sflash: explicitly request exclusive reset control
2017-07-19 17:06:31 +01:00
spi-tegra20-slink.c
spi: tegra20-slink: use true and false for boolean values
2018-03-06 14:20:37 +00:00
spi-tegra114.c
spi: tegra114: correct register name in definition
2017-10-09 10:16:38 +01:00
spi-test.h
spi: loopback-test: add elapsed time check
2017-03-17 21:54:08 +00:00
spi-ti-qspi.c
Merge remote-tracking branches 'spi/topic/ti-qspi' and 'spi/topic/xlp' into spi-next
2017-04-26 15:58:22 +01:00
spi-tle62x0.c
spi: Drop owner assignment from spi_drivers
2015-10-28 10:30:17 +09:00
spi-topcliff-pch.c
spi/topcliff-pch: Delete an error message for a failed memory allocation in pch_spi_set_tx()
2017-01-17 18:38:02 +00:00
spi-txx9.c
spi: spi-txx9: Add missing clock (un)prepare calls for CCF
2016-08-18 19:10:39 +01:00
spi-xcomm.c
spi: xcomm: Export I2C module alias information
2015-07-31 18:14:57 +01:00
spi-xilinx.c
spi: xilinx: Add support for xlnx,axi-quad-spi-1.00.a
2017-11-27 16:31:20 +00:00
spi-xlp.c
spi: xlp: fix error return code in xlp_spi_probe()
2017-08-08 11:36:07 +01:00
spi-xtensa-xtfpga.c
spi: xtensa-xtfpga: fix register endianness
2015-09-22 09:30:10 -07:00
spi-zynqmp-gqspi.c
spi: simplify getting .drvdata
2018-04-20 17:53:20 +01:00
spi.c
spi: Make support for regular transfers optional when ->mem_ops != NULL
2018-05-11 11:33:15 +09:00
spidev.c
Merge branch 'for-spi' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-08 10:41:53 -07:00