Knut Wohlrab 793c7f9212 spi: imx: only do necessary changes to ECSPIx_CONFIGREG ...

If the SPI chip select (CS) for a dedicated channel is done manually by
the used higher device driver, the CS may be active while writing to
ECSPIx_CONFIGREG. To prevent unwanted clock edges when selecting
the clock mode,  only do the necessary changes to the i.MX SPI
configuration register and leave not selected channels untouched.

To prevent unwanted clock edges on first use, an empty dummy
transmission shall be done by the initialization procedure of the device
driver of this channel. This will set the clock mode to the correct state.

Signed-off-by: Knut Wohlrab <knut.wohlrab@de.bosch.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

2016-03-17 11:44:11 +00:00

..

Kconfig

Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-next

2016-03-11 14:28:53 +07:00

Makefile

Merge remote-tracking branches 'spi/topic/lp8841', 'spi/topic/msg', 'spi/topic/pl022' and 'spi/topic/pxa2xx' into spi-next

2016-03-11 14:28:43 +07:00

spi-adi-v3.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-altera.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-ath79.c

spi: ath79: simplify iomem resource mapping

2015-09-30 20:33:29 +01:00

spi-atmel.c

spi: atmel: fix gpio chip-select in case of non-DT platform

2016-01-28 23:25:54 +01:00

spi-au1550.c

spi: au1550: Simplify au1550_spi_setupxfer()

2015-09-16 20:54:54 +01:00

spi-axi-spi-engine.c

spi: Add Analog Devices AXI SPI Engine controller support

2016-02-05 18:12:57 +00:00

spi-bcm53xx.c

spi: bcm53xx: Adjust devm usage

2015-09-16 17:42:28 +01:00

spi-bcm53xx.h

spi: bcm53xx: driver for SPI controller on Broadcom bcma SoC

2014-08-19 11:30:55 -05:00

spi-bcm63xx-hsspi.c

spi/bcm63xx-hsspi: add support for dual spi read/write

2015-08-25 17:33:49 +01:00

spi-bcm63xx.c

Merge remote-tracking branches 'spi/topic/bcm63xx', 'spi/topic/butterfly', 'spi/topic/cadence' and 'spi/topic/davinci' into spi-next

2016-01-11 16:48:30 +00:00

spi-bcm2835.c

spi: bcm2835: Remove unnecessary workaround to call gpio_set_value

2016-02-15 20:43:39 +00:00

spi-bcm2835aux.c

Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic/bcm2835' and 'spi/topic/bcm2835aux' into spi-next

2016-03-11 14:28:25 +07:00

spi-bfin5xx.c

spi: spi-bfin5xx: Calculate transfer speed unconditionally

2015-09-16 20:54:32 +01:00

spi-bfin-sport.c

spi: bfin-sport: Calculate transfer speed unconditionally

2015-09-16 20:53:45 +01:00

spi-bitbang-txrx.h

spi: Fix regression in spi-bitbang-txrx.h

2015-07-29 15:01:07 +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-butterfly.c

spi: butterfly: use new parport device model

2015-12-02 19:38:16 +00:00

spi-cadence.c

spi: cadence: use to_platform_device()

2016-01-05 11:34:23 +00:00

spi-clps711x.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +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: use dev_err() for error reporting

2015-12-12 22:57:44 +00:00

spi-dln2.c

spi/dln2: simplify return flow for dln2_spi_transfer_setup and dln2_spi_enable

2015-01-06 17:02:50 +00:00

spi-dw-mid.c

spi: dw-mid: switch to new dmaengine_terminate_* API

2016-02-05 17:41:49 +00:00

spi-dw-mmio.c

spi: dw-mmio: remove message which is handled by core

2016-02-05 17:41:49 +00:00

spi-dw-pci.c

spi: dw-pci: remove unused pdev member from struct dw_spi_pci

2015-10-19 20:32:01 +01:00

spi-dw.c

spi: dw: Use SPI_TMOD_TR rather than magic const 0 to set tmode

2015-12-23 12:12:09 +00:00

spi-dw.h

spi: dw-mid: constify dw_spi_dma_ops structure

2015-11-30 11:34:50 +00:00

spi-efm32.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-ep93xx.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-falcon.c

Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next

2015-02-08 11:16:46 +08:00

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/spi-fsl-spi: Make driver usable in CPU mode outside of an FSL_SOC environment

2013-04-07 10:07:54 +01:00

spi-fsl-dspi.c

spi-fsl-dspi: Fix CTAR Register access

2015-12-12 22:33:09 +00:00

spi-fsl-espi.c

spi/fsl-espi: Correct the maximum transaction length

2016-01-22 17:03:26 +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-(e)spi: simplify cleanup code

2015-08-28 18:15:18 +01:00

spi-fsl-spi.c

spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource

2015-08-30 12:14:36 +01:00

spi-fsl-spi.h

spi/spi-fsl-spi: Add support for Aeroflex Gaisler GRLIB cores normally running on SPARC

2013-04-07 10:07:56 +01:00

spi-gpio.c

Merge remote-tracking branches 'spi/topic/falcon', 'spi/topic/fsf', 'spi/topic/fsl', 'spi/topic/fsl-dspi' and 'spi/topic/gpio' into spi-next

2015-02-08 11:16:46 +08:00

spi-img-spfi.c

Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/fsl-espi', 'spi/topic/img-spfi' and 'spi/topic/mpc512x-psc' into spi-next

2015-08-31 14:45:32 +01:00

spi-imx.c

spi: imx: only do necessary changes to ECSPIx_CONFIGREG

2016-03-17 11:44:11 +00:00

spi-lm70llp.c

spi: lm70llp: remove printk

2015-12-07 20:09:09 +00:00

spi-loopback-test.c

spi: fix counting in spi-loopback-test code

2016-01-15 18:13:53 +00:00

spi-lp8841-rtc.c

spi: lp-8841: return correct error code from probe

2016-02-26 11:06:38 +09:00

spi-meson-spifc.c

spi: meson: Fix module autoload for OF platform driver

2015-09-19 07:55:25 -07:00

spi-mpc52xx-psc.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-mpc52xx.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-mpc512x-psc.c

spi: mpc512x: Call mpc512x_psc_spi_transfer_setup() unconditionally

2015-09-17 12:33:31 +01:00

spi-mt65xx.c

Merge remote-tracking branches 'spi/topic/lm70llp', 'spi/topic/loopback', 'spi/topic/mtk' and 'spi/topic/omap2-mcspi' into spi-next

2016-01-11 16:48:33 +00:00

spi-mxs.c

spi: mxs: cleanup wait_for_completion return handling

2015-02-05 18:04:57 +00:00

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-octeon.c

spi: octeon: Use transfer speed unconditionally

2015-09-16 20:53:19 +01:00

spi-omap2-mcspi.c

spi: omap2-mcspi: Fix PM regression with deferred probe for pm_runtime_reinit

2016-02-12 22:33:09 +00:00

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: On a38x, implement "50MHZ SPI AC timing" Erratum No. FE-9144572

2015-08-11 17:21:08 +01:00

spi-pl022.c

spi: pl022: Remove obsolete struct pl022 members from kerneldoc

2016-02-17 12:08:55 +00:00

spi-ppc4xx.c

spi: bitbang: Replace spinlock by mutex

2015-09-17 12:13:40 +01:00

spi-pxa2xx-dma.c

spi: pxa2xx: Use newer more explicit DMAengine terminate API

2016-03-04 13:06:00 +09:00

spi-pxa2xx-pci.c

spi: spi-pxa2xx-pci: Add ID and driver type for WildcatPoint PCH

2016-02-21 05:01:12 +09:00

spi-pxa2xx.c

spi: pxa2xx: Add support for Intel Broxton B-Step

2016-03-02 19:58:08 +09:00

spi-pxa2xx.h

spi: pxa2xx: Remove unused DMA buffer mappings

2016-02-21 02:10:16 +09:00

spi-qup.c

Merge remote-tracking branches 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx' and 'spi/topic/sc18is602' into spi-next

2015-04-11 23:09:25 +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

Merge remote-tracking branches 'spi/topic/res', 'spi/topic/rockchip', 'spi/topic/sh', 'spi/topic/ti-qspi' and 'spi/topic/xilinx' into spi-next

2016-03-11 14:28:53 +07:00

spi-rspi.c

spi: rspi: Make qspi_set_send_trigger() return "unsigned int"

2015-07-03 13:52:10 +01:00

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: Remove unused platform_device_id entries

2015-12-30 16:48:58 +00:00

spi-sc18is602.c

Merge remote-tracking branches 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic/s3c64xx' and 'spi/topic/sc18is602' into spi-next

2015-04-11 23:09:25 +01:00

spi-sh-hspi.c

spi: Remove FSF mailing addresses

2014-12-22 15:32:42 +00:00

spi-sh-msiof.c

spi: sh-msiof: Fix FIFO size to 64 word from 256 word

2015-08-31 14:42:40 +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: Remove FSF mailing addresses

2014-12-22 15:32:42 +00:00

spi-sirf.c

spi: sirf: add the reset for USP-based SPI

2015-05-26 11:39:16 +01:00

spi-st-ssc4.c

spi: constify of_device_id array

2015-03-17 12:15:22 +00:00

spi-sun4i.c

Merge remote-tracking branches 'spi/topic/sun4i', 'spi/topic/topcliff-pch' and 'spi/topic/zynq' into spi-next

2016-01-11 16:48:38 +00:00

spi-sun6i.c

spi: sun4i: allow transfers to set transmission speed

2015-11-18 18:34:56 +00:00

spi-tegra20-sflash.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-tegra20-slink.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-tegra114.c

spi: drop owner assignment from platform_drivers

2014-10-20 16:21:36 +02:00

spi-test.h

spi: loopback: added additional non-power of 2 transfer lengthes

2015-12-13 20:10:15 +00:00

spi-ti-qspi.c

spi: spi-ti-qspi: add mmap mode read support

2016-02-09 19:34:43 +00:00

spi-tle62x0.c

spi: Drop owner assignment from spi_drivers

2015-10-28 10:30:17 +09:00

spi-topcliff-pch.c

spi: Remove FSF mailing addresses

2014-12-22 15:32:42 +00:00

spi-txx9.c

spi: txx9: Use transfer speed unconditionally

2015-09-16 20:52:52 +01:00

spi-xcomm.c

spi: xcomm: Export I2C module alias information

2015-07-31 18:14:57 +01:00

spi-xilinx.c

spi/spi-xilinx: Fix race condition on last word read

2015-10-29 09:03:42 +09:00

spi-xlp.c

spi/xlp: SPI controller driver for Netlogic XLP SoCs

2015-08-28 18:22:19 +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: zynq: use to_platform_device()

2016-01-05 11:34:37 +00:00

spi.c

Merge remote-tracking branches 'spi/topic/lp8841', 'spi/topic/msg', 'spi/topic/pl022' and 'spi/topic/pxa2xx' into spi-next

2016-03-11 14:28:43 +07:00

spidev.c

Merge remote-tracking branches 'spi/topic/overlay', 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/spidev' into spi-next

2016-01-11 16:48:35 +00:00