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linux-sg2042/drivers/i2c/busses
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Adamski, Krzysztof (Nokia - PL/Wroclaw) f0b576801d i2c: axxia: support slave mode 
This device contains both master and slave controllers which can be
enabled simultaneously. Both controllers share the same SDA/SCL lines
and interrupt source but has separate control and status registers.
Controllers also works in loopback mode - slave device can communicate
with its own master controller internally. The controller can handle up
to two addresses, both of which may be 10 bit. Most of the logic
(sending (N)ACK, handling repeated start or switching between
write/read) is handled automatically which makes working with this
controller quite easy.

For simplicity, this patch adds basic support, limiting to only one
slave address. Support for the 2nd device may be added in the future.

Note that synchronize_irq() is used to ensure any running slave interrupt
is finished to make sure slave i2c_client structure can be safely used
by i2c_slave_event.

Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
 		2019-08-29 21:07:30 +02:00
..
Kconfig i2c: axxia: support slave mode 2019-08-29 21:07:30 +02:00
Makefile i2c: Add i2c-icy for I2C on m68k/Amiga 2019-08-29 21:04:11 +02:00
i2c-acorn.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-ali15x3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-ali1535.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-ali1563.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
i2c-altera.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
i2c-amd-mp2-pci.c driver_find_device: Unify the match function with class_find_device() 2019-06-24 05:22:31 +02:00
i2c-amd-mp2-plat.c i2c: Add drivers for the AMD PCIe MP2 I2C controller 2019-03-25 15:21:17 +01:00
i2c-amd-mp2.h i2c: Add drivers for the AMD PCIe MP2 I2C controller 2019-03-25 15:21:17 +01:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-aspeed.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-at91-core.c i2c: at91: added slave mode support 2019-03-24 22:41:51 +01:00
i2c-at91-master.c i2c: at91: Convert to use struct i2c_timings 2019-03-27 14:09:53 +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: Convert to use struct i2c_timings 2019-03-27 14:09:53 +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: axxia: support slave mode 2019-08-29 21:07:30 +02:00
i2c-bcm-iproc.c i2c: iproc: Add multi byte read-write support for slave mode 2019-05-27 21:26:01 +02:00
i2c-bcm-kona.c Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-10-07 14:12:21 -07:00
i2c-bcm2835.c i2c: bcm2835: Add full name of devicetree node to adapter name 2019-08-29 20:52:36 +02:00
i2c-brcmstb.c i2c: brcmstb: remove unused struct member 2019-04-15 13:42:36 +02:00
i2c-cadence.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
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-cht-wc: Fix lockdep warning 2019-08-14 15:20:15 +02:00
i2c-cpm.c 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-cros-ec-tunnel.c i2c: i2c-cros-ec-tunnel: Switch to SPDX identifier. 2018-12-17 23:08:41 +01:00
i2c-davinci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-designware-baytrail.c More ACPI updates for 4.20-rc1 2018-10-30 09:15:31 -07:00
i2c-designware-common.c i2c: designware: Add support for an interface clock 2019-03-20 17:57:18 +01:00
i2c-designware-core.h i2c: designware: Add support for an interface clock 2019-03-20 17:57:18 +01:00
i2c-designware-master.c i2c: designware: Fix unused variable warning 2019-08-06 22:23:24 +02:00
i2c-designware-pcidrv.c i2c: busses: Use dev_get_drvdata where possible 2019-08-01 14:55:22 +02:00
i2c-designware-platdrv.c i2c: designware: Add support for an interface clock 2019-03-20 17:57:18 +01:00
i2c-designware-slave.c i2c: designware: Add SPDX license tag 2018-08-20 10:45:45 +02:00
i2c-digicolor.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-diolan-u2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-dln2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-efm32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-eg20t.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 2019-06-05 17:36:37 +02:00
i2c-elektor.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-emev2.c i2c: use SPDX identifier for Renesas drivers 2018-08-24 14:49:36 +02:00
i2c-exynos5.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-fsi.c i2c: fsi: Create busses for all ports 2019-06-08 00:18:31 +02:00
i2c-gpio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-highlander.c i2c: use SPDX identifier for Renesas drivers 2018-08-24 14:49:36 +02:00
i2c-hix5hd2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-hydra.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-i801.c i2c: busses: Use dev_get_drvdata where possible 2019-08-01 14:55:22 +02:00
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: Add LTC2990 present on 2019 board revision 2019-08-29 21:05:35 +02:00
i2c-img-scb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-imx-lpi2c.c i2c: imx-lpi2c: use devm_platform_ioremap_resource() to simplify code 2019-08-01 14:49:52 +02:00
i2c-imx.c i2c: imx: Use __maybe_unused instead of #if CONFIG_PM 2019-05-27 21:26:01 +02:00
i2c-iop3xx.c 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-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: Remove call to memset after dmam_alloc_coherent 2019-08-01 14:48:55 +02:00
i2c-jz4780.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-kempld.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 294 2019-06-05 17:36:38 +02:00
i2c-lpc2k.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-meson.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-mlxcpld.c i2c: mlxcpld: Fix wrong initialization order in probe 2019-05-27 21:24:58 +02:00
i2c-mpc.c i2c: mpc: always determine I2C clock prescaler at runtime 2018-01-15 19:19:55 +01:00
i2c-mt65xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
i2c-mt7621.c i2c: mt7621: Fix platform_no_drv_owner.cocci warnings 2019-07-06 17:04:32 +02:00
i2c-mv64xxx.c i2c: mv64xxx: Apply errata delay only in standard mode 2018-03-17 21:20:04 +01:00
i2c-mxs.c i2c: mxs: use devm_platform_ioremap_resource() to simplify code 2019-08-01 14:49:36 +02:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-nvidia-gpu.c docs: fix broken doc references due to renames 2019-07-17 06:57:51 -03:00
i2c-ocores.c i2c: ocores: add polling mode workaround for Sifive FU540-C000 SoC 2019-06-14 23:24:33 +02:00
i2c-octeon-core.c i2c: octeon: Prevent error message on bus error 2018-03-02 11:11:15 +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: make i2c_adapter const 2017-08-29 22:26:08 +02:00
i2c-omap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-opal.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114 2019-05-24 17:39:01 +02:00
i2c-owl.c i2c: Add Actions Semiconductor Owl family S700 I2C support 2019-01-03 20:36:18 +01:00
i2c-parport-light.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-parport.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-parport.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-piix4.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-pmcmsp.c i2c: pmcmsp: use core to detect 'no zero length' quirk 2018-08-04 23:25:06 +02:00
i2c-pnx.c i2c: pnx: move header into the driver 2018-05-17 16:27:59 +02:00
i2c-powermac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-puv3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-qcom-geni.c i2c: qcom-geni: Provide support for ACPI 2019-06-14 23:24:34 +02:00
i2c-qup.c i2c: qup: use core to detect 'no zero length' quirk 2018-10-05 18:05:08 +02:00
i2c-rcar.c i2c: rcar: wait for data empty before starting DMA 2019-03-20 18:19:20 +01:00
i2c-riic.c i2c: riic: Add Runtime PM support 2019-04-23 23:29:12 +02:00
i2c-rk3x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +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 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-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: use new clock calculation formulas for Gen2 2019-02-08 22:24:50 +01:00
i2c-sibyte.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-simtec.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235 2019-06-19 17:09:07 +02:00
i2c-sirf.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +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: Validate the return value of clock initialization 2019-08-06 22:54:23 +02:00
i2c-st.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i2c-stm32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
i2c-stm32.h i2c: i2c-stm32: Add generic DMA API 2018-04-30 10:39:27 +02:00
i2c-stm32f4.c i2c-stm32f4: remove redundant initialization of pointer reg 2018-02-27 13:51:05 +01:00
i2c-stm32f7.c i2c: i2c-stm32f7: Add I2C_SMBUS_I2C_BLOCK_DATA support 2019-06-29 13:30:39 +02:00
i2c-stu300.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
i2c-sun6i-p2wi.c i2c: sun6i-pw2i: explicitly request exclusive reset control 2017-08-14 21:40:21 +02:00
i2c-synquacer.c i2c: synquacer: fix synquacer_i2c_doxfer() return value 2019-05-27 21:29:04 +02:00
i2c-taos-evm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 2019-06-05 17:36:37 +02:00
i2c-tegra-bpmp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
i2c-tegra.c i2c: tegra: Compile PM functions unconditionally 2019-08-01 14:45:18 +02:00
i2c-thunderx-pcidrv.c i2c: thunderx: Remove duplicate NULL check 2017-11-02 00:01:31 +01:00
i2c-tiny-usb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
i2c-uniphier-f.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-uniphier.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
i2c-viperboard.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
i2c-wmt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 75 2019-05-24 17:36:47 +02:00
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: Add max_read_len quirk 2019-06-08 00:24:07 +02:00
i2c-xlp9xx.c i2c: xlp9xx: Fix case where SSIF read transaction completes early 2018-08-09 17:41:13 +02:00
i2c-xlr.c i2c: xlr: use core to detect 'no zero length' quirk 2018-08-04 23:25:08 +02:00
i2c-zx2967.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
scx200_acb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00