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Kevin Paul Herbert 05ae60bc24 i2c: imx: Synthesize end of transaction events without idle interrupts 
Only the Layerscape SoCs have interrupts on bus idle, which facilitate
sending events which complete slave bus transactions.

Add support for synthesizing missing events. If we see a master request,
or a newly addressed slave request, if the last event sent to the backend
was I2C_SLAVE_READ_REQUESTED, send the backend a I2C_SLAVE_READ_PROCESSED
followed by I2C_SLAVE_STOP. For all other events, send an I2C_SLAVE_STOP.

Signed-off-by: Kevin Paul Herbert <kph@platinasystems.com>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2021-02-01 23:12:01 +01:00
..
i2c-acorn.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
i2c-ali15x3.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-ali1535.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-ali1563.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
i2c-altera.c
i2c: altera: cleanup spinlock
2020-05-20 15:28:03 +02:00
i2c-amd756-s4882.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-amd756.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-amd8111.c
i2c: busses: Use fallthrough pseudo-keyword
2020-07-23 22:04:08 +02:00
i2c-amd-mp2-pci.c
i2c: amd-mp2: convert to PCI logging functions
2021-02-01 23:01:29 +01:00
i2c-amd-mp2-plat.c
i2c: amd-mp2: convert to PCI logging functions
2021-02-01 23:01:29 +01:00
i2c-amd-mp2.h
i2c: amd-mp2: Remove unused macro
2021-02-01 23:01:50 +01:00
i2c-aspeed.c
i2c: aspeed: Mask IRQ status to relevant bits
2020-09-14 08:55:44 +02:00
i2c-at91-core.c
i2c: at91: Send bus clear command if SDA is down
2020-05-05 16:37:21 +02:00
i2c-at91-master.c
i2c: at91: remove legacy DMA left overs
2020-11-03 21:34:40 +01:00
i2c-at91-slave.c
i2c: at91: added slave mode support
2019-03-24 22:41:51 +01:00
i2c-at91.h
i2c: at91: remove legacy DMA left overs
2020-11-03 21:34:40 +01:00
i2c-au1550.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-axxia.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-bcm2835.c
i2c: bcm2835: Simplify with dev_err_probe()
2020-09-18 23:02:03 +02:00
i2c-bcm-iproc.c
i2c: iproc: handle rx fifo full interrupt
2021-01-05 17:19:31 +01:00
i2c-bcm-kona.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-brcmstb.c
i2c: brcmstb: Fix handling of optional interrupt
2020-04-26 10:00:29 +02:00
i2c-cadence.c
i2c: cadence: Clear HOLD bit at correct time in Rx path
2020-07-22 12:28:07 +02:00
i2c-cbus-gpio.c
i2c: cbus-gpio: Switch to use GPIO descriptors
2019-02-08 22:18:51 +01:00
i2c-cht-wc.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-cpm.c
i2c: cpm: Fix i2c_ram structure
2020-09-27 15:14:16 +02:00
i2c-cros-ec-tunnel.c
i2c: cros-ec-tunnel: Fix ACPI identifier
2020-01-31 09:01:25 +01:00
i2c-davinci.c
i2c: busses: convert to devm_platform_ioremap_resource
2020-04-15 12:09:09 +02:00
i2c-designware-baytrail.c
i2c: designware: Fix spelling typos in the comments
2020-03-21 19:53:08 +01:00
i2c-designware-common.c
i2c: designware: Adjust bus speed independently of ACPI
2020-06-23 21:24:33 +02:00
i2c-designware-core.h
i2c: designware: Make register offsets all of the same width
2020-12-09 21:53:29 +01:00
i2c-designware-master.c
i2c: designware: Convert driver to using regmap API
2020-05-30 23:02:22 +02:00
i2c-designware-pcidrv.c
i2c: busses: Use fallthrough pseudo-keyword
2020-07-23 22:04:08 +02:00
i2c-designware-platdrv.c
i2c: designware: Add device HID for Hygon I2C controller
2020-08-07 20:07:44 +02:00
i2c-designware-slave.c
i2c: designware: slave should do WRITE_REQUESTED before WRITE_RECEIVED
2020-11-06 16:02:00 +01:00
i2c-digicolor.c
i2c: busses: Use fallthrough pseudo-keyword
2020-07-23 22:04:08 +02:00
i2c-diolan-u2c.c
i2c: drivers: Use generic definitions for bus frequencies
2020-03-24 22:36:59 +01:00
i2c-dln2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
i2c-eg20t.c
i2c: eg20t: use generic power management
2020-08-10 15:47:38 +02:00
i2c-elektor.c
i2c: busses: Use DEFINE_SPINLOCK() for spinlock
2021-01-05 17:43:43 +01:00
i2c-emev2.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-exynos5.c
i2c: exynos5: don't check for irq 0
2020-11-03 22:18:04 +01:00
i2c-fsi.c
i2c: fsi: Prevent adding adapters for ports without dts nodes
2020-07-24 21:31:33 +02:00
i2c-gpio.c
i2c: gpio: fix MODULE_LICENCE
2021-01-05 17:30:45 +01:00
i2c-highlander.c
Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2020-02-07 12:54:13 -08:00
i2c-hix5hd2.c
i2c: fix platform_get_irq.cocci warnings
2021-01-05 17:33:48 +01:00
i2c-hydra.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-i801.c
Linux 5.11-rc5
2021-01-28 10:03:25 +01:00
i2c-ibm_iic.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
i2c-ibm_iic.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
i2c-icy.c
i2c: icy: Fix build with CONFIG_AMIGA_PCMCIA=n
2020-06-07 20:45:24 +02:00
i2c-img-scb.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-imx-lpi2c.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-imx.c
i2c: imx: Synthesize end of transaction events without idle interrupts
2021-02-01 23:12:01 +01:00
i2c-iop3xx.c
i2c: iop3xx: Fix memory leak in probe error path
2020-01-15 20:31:27 +01:00
i2c-iop3xx.h
Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2019-07-15 21:10:39 -07:00
i2c-isch.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
i2c-ismt.c
i2c: ismt: Adding support for I2C_SMBUS_BLOCK_PROC_CALL
2020-12-03 21:20:53 +01:00
i2c-jz4780.c
i2c: jz4780: Remove of_match_ptr()
2020-09-21 11:46:05 +02:00
i2c-kempld.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294
2019-06-05 17:36:38 +02:00
i2c-lpc2k.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-meson.c
i2c: meson: fixup rate calculation with filter delay
2020-10-08 11:57:23 +02:00
i2c-mlxbf.c
i2c: mlxbf: Fix the return check of devm_ioremap and ioremap
2020-12-05 14:52:35 +01:00
i2c-mlxcpld.c
i2c: mlxcpld: Add support for I2C bus frequency setting
2021-01-06 15:36:46 +01:00
i2c-mpc.c
i2c: mpc: always determine I2C clock prescaler at runtime
2018-01-15 19:19:55 +01:00
i2c-mt65xx.c
i2c: mediatek: Fix apdma and i2c hand-shake timeout
2021-01-05 10:54:37 +01:00
i2c-mt7621.c
i2c: drivers: Use generic definitions for bus frequencies
2020-03-24 22:36:59 +01:00
i2c-mv64xxx.c
i2c: mv64xxx: Add runtime PM support
2021-02-01 23:05:29 +01:00
i2c-mxs.c
i2c: mxs: Remove unneeded platform_device_id
2020-12-02 21:29:31 +01:00
i2c-nforce2-s4985.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-nforce2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-nomadik.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-npcm7xx.c
i2c: npcm7xx: Clear LAST bit after a failed transaction.
2020-09-27 20:05:27 +02:00
i2c-nvidia-gpu.c
i2c: nvidia-gpu: drop empty stub for runtime pm
2020-12-02 21:29:30 +01:00
i2c-ocores.c
i2c: ocores: Avoid false-positive error log message.
2020-12-03 21:18:16 +01:00
i2c-octeon-core.c
i2c: octeon: check correct size of maximum RECV_LEN packet
2021-01-17 12:26:55 +01:00
i2c-octeon-core.h
i2c: octeon: Prevent error message on bus error
2018-03-02 11:11:15 +01:00
i2c-octeon-platdrv.c
i2c: busses: convert to devm_platform_ioremap_resource
2020-04-15 12:09:09 +02:00
i2c-omap.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
i2c-opal.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
i2c-owl.c
i2c: owl: Add compatible for the Actions Semi S500 I2C controller
2020-12-09 21:23:21 +01:00
i2c-parport.c
i2c: convert SMBus alert setup function to return an ERRPTR
2020-03-10 12:19:52 +01:00
i2c-pasemi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
i2c-pca-isa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-pca-platform.c
i2c: pca-platform: drop two members from driver data that are assigned to only
2020-12-02 21:29:31 +01:00
i2c-piix4.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-pmcmsp.c
Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2020-02-07 12:54:13 -08:00
i2c-pnx.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-powermac.c
i2c: powermac: use true,false for bool variable
2020-04-30 16:18:30 +02:00
i2c-pxa-pci.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 462
2019-06-19 17:09:10 +02:00
i2c-pxa.c
i2c: pxa: move to generic GPIO recovery
2020-12-09 21:45:47 +01:00
i2c-qcom-cci.c
i2c: qcom: Fix IRQ error misassignement
2020-12-02 17:05:42 +01:00
i2c-qcom-geni.c
i2c: i2c-qcom-geni: Add shutdown callback for i2c
2021-02-01 23:09:34 +01:00
i2c-qup.c
i2c: qup: advertise SMBus transfers using RECV_LEN
2021-01-22 09:59:25 +01:00
i2c-rcar.c
i2c: rcar: protect against supurious interrupts on V3U
2021-01-05 16:29:46 +01:00
i2c-riic.c
i2c: drivers: Use generic definitions for bus frequencies
2020-03-24 22:36:59 +01:00
i2c-rk3x.c
i2c: rk3x: Simplify with dev_err_probe()
2020-09-27 19:58:56 +02:00
i2c-robotfuzz-osif.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
i2c-s3c2410.c
i2c: s3c2410: advertise SMBus transfers using RECV_LEN
2021-01-22 09:59:49 +01:00
i2c-scmi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372
2019-06-05 17:37:10 +02:00
i2c-sh7760.c
i2c: don't print error when adding adapter fails
2016-08-22 08:19:55 +02:00
i2c-sh_mobile.c
i2c: sh_mobile: Mark adapter suspended during suspend
2020-12-09 21:29:50 +01:00
i2c-sibyte.c
i2c: Use separate MODULE_AUTHOR() statements for multiple authors
2020-07-04 08:25:13 +02:00
i2c-simtec.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235
2019-06-19 17:09:07 +02:00
i2c-sis96x.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-sis630.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-sis5595.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-sprd.c
i2c: sprd: use a specific timeout to avoid system hang up issue
2021-01-04 19:22:07 +01:00
i2c-st.c
Merge branch 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2020-04-02 15:54:13 -07:00
i2c-stm32.c
i2c: stm32: Simplify with dev_err_probe()
2020-09-21 11:45:43 +02:00
i2c-stm32.h
i2c: stm32: Use the correct style for SPDX License Identifier
2019-08-14 14:56:54 +02:00
i2c-stm32f4.c
i2c: stm32: Simplify with dev_err_probe()
2020-09-21 11:45:43 +02:00
i2c-stm32f7.c
PM: sleep: Add dev_wakeup_path() helper
2020-11-23 18:34:55 +01:00
i2c-sun6i-p2wi.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-synquacer.c
i2c: busses: Use fallthrough pseudo-keyword
2020-07-23 22:04:08 +02:00
i2c-taos-evm.c
i2c: taos-evm: convert to use i2c_new_client_device()
2020-01-15 20:39:41 +01:00
i2c-tegra-bpmp.c
i2c: bpmp-tegra: Ignore unknown I2C_M flags
2021-01-17 12:17:11 +01:00
i2c-tegra.c
i2c: tegra: Use threaded interrupt
2021-01-28 10:03:58 +01:00
i2c-thunderx-pcidrv.c
i2c: drivers: Use generic definitions for bus frequencies
2020-03-24 22:36:59 +01:00
i2c-tiny-usb.c
i2c: tiny-usb: Correct I2C fault codes.
2020-01-06 15:40:43 +01:00
i2c-uniphier-f.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-uniphier.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-versatile.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
i2c-via.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157
2019-05-30 11:26:37 -07:00
i2c-viapro.c
i2c: busses: Use fallthrough pseudo-keyword
2020-07-23 22:04:08 +02:00
i2c-viperboard.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
i2c-wmt.c
i2c: drivers: Use generic definitions for bus frequencies
2020-03-24 22:36:59 +01:00
i2c-xgene-slimpro.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
2019-05-21 11:28:45 +02:00
i2c-xiic.c
i2c: xiic: Support forcing single-master in DT
2020-08-28 09:00:00 +02:00
i2c-xlp9xx.c
i2c: busses: remove duplicate dev_err()
2020-04-18 23:42:14 +02:00
i2c-xlr.c
i2c: busses: convert to devm_platform_ioremap_resource
2020-04-15 12:09:09 +02:00
Kconfig
Linux 5.11-rc5
2021-01-28 10:03:25 +01:00
Makefile
i2c: remove zte zx bus driver
2021-01-28 09:46:01 +01:00
scx200_acb.c
i2c: busses: Use fallthrough pseudo-keyword
2020-07-23 22:04:08 +02:00