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05ae60bc24
linux/drivers/i2c/busses
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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-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-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-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-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