asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
android_kernel_motorola_sm6225/drivers/i2c/busses
History
Robert Hancock 6433e68d4a i2c: cadence: Change large transfer count reset logic to be unconditional 
[ Upstream commit 4ca8ca873d454635c20d508261bfc0081af75cf8 ]

Problems were observed on the Xilinx ZynqMP platform with large I2C reads.
When a read of 277 bytes was performed, the controller NAKed the transfer
after only 252 bytes were transferred and returned an ENXIO error on the
transfer.

There is some code in cdns_i2c_master_isr to handle this case by resetting
the transfer count in the controller before it reaches 0, to allow larger
transfers to work, but it was conditional on the CDNS_I2C_BROKEN_HOLD_BIT
quirk being set on the controller, and ZynqMP uses the r1p14 version of
the core where this quirk is not being set. The requirement to do this to
support larger reads seems like an inherently required workaround due to
the core only having an 8-bit transfer size register, so it does not
appear that this should be conditional on the broken HOLD bit quirk which
is used elsewhere in the driver.

Remove the dependency on the CDNS_I2C_BROKEN_HOLD_BIT for this transfer
size reset logic to fix this problem.

Fixes: 63cab195bf ("i2c: removed work arounds in i2c driver for Zynq Ultrascale+ MPSoC")
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Shubhrajyoti Datta <Shubhrajyoti.datta@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-07-29 17:10:32 +02:00
..
i2c-acorn.c i2c: acorn: fix i2c warning 2019-06-19 08:18:00 +02:00
i2c-ali15x3.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-ali1535.c
i2c-ali1563.c
i2c-altera.c i2c: altera: Fix race between xfer_msg and isr thread 2020-06-07 13:17:56 +02:00
i2c-amd756-s4882.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i2c-amd756.c i2c: don't print error when adding adapter fails 2016-08-22 08:19:55 +02:00
i2c-amd8111.c i2c: amd8111: Mark expected switch fall-through 2018-08-08 22:28:46 +02:00
i2c-aspeed.c i2c: aspeed: fix invalid clock parameters for very large divisors 2019-11-20 18:47:22 +01:00
i2c-at91.c i2c: at91: Initialize dma_buf in at91_twi_xfer() 2022-06-14 16:59:26 +02:00
i2c-au1550.c
i2c-axxia.c i2c-axxia: check for error conditions first 2019-02-12 19:47:09 +01:00
i2c-bcm-iproc.c i2c: use dev_get_drvdata() to get private data in suspend/resume hooks 2017-07-31 17:03:32 +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: Avoid clock stretching timeouts 2022-03-08 19:04:06 +01:00
i2c-brcmstb.c i2c: brcmstb: fix support for DSL and CM variants 2022-02-23 11:58:41 +01:00
i2c-cadence.c i2c: cadence: Change large transfer count reset logic to be unconditional 2022-07-29 17:10:32 +02:00
i2c-cbus-gpio.c
i2c-cht-wc.c i2c-cht-wc: Fix lockdep warning 2019-10-07 18:57:08 +02:00
i2c-cpm.c i2c: cpm: Fix i2c_ram structure 2020-10-07 08:00:08 +02:00
i2c-cros-ec-tunnel.c i2c: i2c-cros-ec-tunnel: Reduce logging noise 2017-01-28 22:16:38 +01:00
i2c-davinci.c Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-08-21 17:40:46 -07:00
i2c-designware-baytrail.c i2c: designware: Add SPDX license tag 2018-08-20 10:45:45 +02:00
i2c-designware-common.c i2c: designware: Add SPDX license tag 2018-08-20 10:45:45 +02:00
i2c-designware-core.h i2c: designware: Add SPDX license tag 2018-08-20 10:45:45 +02:00
i2c-designware-master.c i2c: designware: Call i2c_dw_clk_rate() only when calculating timings 2018-10-05 13:40:05 +02:00
i2c-designware-pcidrv.c i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters 2022-01-27 09:04:29 +01:00
i2c-designware-platdrv.c i2c: designware: Re-init controllers with pm_disabled set on resume 2018-08-30 23:02:13 +02:00
i2c-designware-slave.c i2c: designware: Synchronize IRQs when unregistering slave client 2019-09-21 07:17:06 +02:00
i2c-digicolor.c i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare 2016-11-18 01:48:01 +01:00
i2c-diolan-u2c.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-dln2.c i2c: constify i2c_adapter_quirks structures 2016-11-18 02:05:03 +01:00
i2c-efm32.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-eg20t.c i2c: eg20t: Load module automatically if ID matches 2020-07-22 09:32:01 +02:00
i2c-elektor.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-emev2.c i2c: emev2: add IRQ check 2021-05-22 10:59:36 +02:00
i2c-exynos5.c i2c: exynos5: Describe the hardware variant for readability 2018-07-21 00:15:22 +02:00
i2c-fsi.c i2c: fsi: Fix the port number field in status register 2020-06-30 23:17:13 -04:00
i2c-gpio.c i2c: gpio: suppress error on probe defer 2020-03-18 07:14:23 +01:00
i2c-highlander.c i2c: highlander: add IRQ check 2021-09-22 11:47:52 +02:00
i2c-hix5hd2.c i2c: hix5hd2: add missed clk_disable_unprepare in remove 2020-04-02 15:28:16 +02:00
i2c-hydra.c
i2c-i801.c i2c: i801: Don't silently correct invalid transfer size 2022-01-27 09:04:29 +01:00
i2c-ibm_iic.c i2c: ibm_iic: don't check number of messages in the driver 2018-05-24 22:05:54 +02:00
i2c-ibm_iic.h
i2c-img-scb.c i2c: img-scb: Add runtime PM 2017-10-28 14:03:45 +02:00
i2c-imx-lpi2c.c i2c: imx-lpi2c: Remove mx8dv compatible entry 2018-09-02 23:50:43 +02:00
i2c-imx.c i2c: imx: Check for I2SR_IAL after every byte 2020-12-11 13:25:02 +01:00
i2c-iop3xx.c i2c: iop3xx: fix deferred probing 2021-09-22 11:47:54 +02:00
i2c-iop3xx.h
i2c-isch.c i2c: i2c-isch: fix spelling mistake "unitialized" -> "uninitialized" 2018-09-25 00:14:04 +02:00
i2c-ismt.c i2c: ismt: Provide a DMA buffer for Interrupt Cause Logging 2022-06-06 08:24:20 +02:00
i2c-jz4780.c i2c: jz4780: add IRQ check 2021-05-22 10:59:36 +02:00
i2c-kempld.c i2c: busses: make use of i2c_8bit_addr_from_msg 2018-05-29 20:30:49 +02:00
i2c-lpc2k.c i2c: use dev_get_drvdata() to get private data in suspend/resume hooks 2017-07-31 17:03:32 +02:00
i2c-meson.c i2c: meson: fixup rate calculation with filter delay 2020-10-14 10:31:23 +02:00
i2c-mlxcpld.c i2c: mlxcpld: check correct size of maximum RECV_LEN packet 2020-07-09 09:37:11 +02:00
i2c-mpc.c i2c: mpc: Correct I2C reset procedure 2022-01-27 09:04:29 +01:00
i2c-mt65xx.c i2c: mt65xx: fix IRQ check 2021-09-22 11:47:54 +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 core to detect 'no zero length' quirk 2018-08-04 23:25:06 +02:00
i2c-nforce2-s4985.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i2c-nforce2.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
i2c-nomadik.c i2c: busses: remove superfluous ignoring of children for RPM 2018-05-08 23:19:02 +02:00
i2c-ocores.c i2c: ocores: update my email address 2018-08-24 14:46:43 +02:00
i2c-octeon-core.c i2c: octeon: check correct size of maximum RECV_LEN packet 2021-01-27 11:05:38 +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 i2c: omap: use core to detect 'no zero length' quirk 2019-11-24 08:20:26 +01:00
i2c-opal.c i2c: opal: don't check number of messages in the driver 2018-05-24 22:06:17 +02:00
i2c-owl.c i2c: owl: Clear NACK and BUS error bits 2020-10-14 10:31:23 +02:00
i2c-parport-light.c i2c: i2c-smbus: Use threaded irq for smbalert 2017-10-28 23:42:26 +02:00
i2c-parport.c i2c: i2c-smbus: Use threaded irq for smbalert 2017-10-28 23:42:26 +02:00
i2c-parport.h
i2c-pasemi.c i2c: pasemi: Wait for write xfers to finish 2022-04-20 09:12:50 +02:00
i2c-pca-isa.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-pca-platform.c i2c: pca-platform: Fix GPIO lookup code 2019-07-10 09:53:39 +02:00
i2c-piix4.c i2c: piix4: Detect secondary SMBus controller on AMD AM4 chipsets 2020-06-25 15:32:47 +02:00
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 i2c: busses: make i2c_adapter_quirks const 2017-08-29 22:32:47 +02:00
i2c-puv3.c i2c: busses: make i2c_algorithm const 2017-08-29 22:20:20 +02:00
i2c-pxa-pci.c ARM: pxa: move header file out of I2C realm 2017-11-28 22:49:30 +01:00
i2c-pxa.c i2c: pxa: fix i2c_pxa_scream_blue_murder() debug output 2020-06-25 15:32:55 +02:00
i2c-qcom-geni.c i2c: qcom-geni: Fix runtime PM mismatch with child devices 2018-11-27 16:13:06 +01:00
i2c-qup.c i2c: qup: Fix error return code in qup_i2c_bam_schedule_desc() 2020-12-11 13:25:04 +01:00
i2c-rcar.c i2c: rcar: optimize cacheline to minimize HW race condition 2021-03-17 16:43:45 +01:00
i2c-riic.c i2c: riic: Clear NACK in tend isr 2019-10-05 13:10:12 +02:00
i2c-rk3x.c i2c: rk3x: Handle a spurious start completion interrupt flag 2021-12-22 09:19:00 +01:00
i2c-robotfuzz-osif.c i2c: robotfuzz-osif: fix control-request directions 2021-06-30 08:48:34 -04:00
i2c-s3c2410.c i2c: s3c2410: fix IRQ check 2021-09-22 11:47:54 +02:00
i2c-scmi.c i2c: scmi: Fix probe error on devices with an empty SMB0001 ACPI device node 2018-12-21 14:15:24 +01:00
i2c-sh7760.c i2c: sh7760: fix IRQ error path 2021-05-22 10:59:37 +02:00
i2c-sh_mobile.c i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E) 2019-02-12 19:47:11 +01:00
i2c-sibyte.c
i2c-simtec.c i2c: simtec: use release_mem_region instead of release_resource 2017-08-14 21:39:21 +02:00
i2c-sirf.c i2c: busses: i2c-sirf: Fix spelling: "formular" -> "formula". 2018-02-22 12:12:35 +01:00
i2c-sis96x.c
i2c-sis630.c
i2c-sis5595.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-sprd.c i2c: sprd: use a specific timeout to avoid system hang up issue 2021-01-17 14:04:21 +01:00
i2c-st.c i2c: st: fix missing struct parameter description 2020-04-17 10:48:38 +02:00
i2c-stm32.c i2c: stm32f7: report dma error during probe 2020-01-27 14:51:21 +01:00
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: stm32f7: stop dma transfer in case of NACK 2021-12-08 08:50:13 +01:00
i2c-stu300.c i2c: stu300: use core to detect 'no zero length' quirk 2018-08-04 23:25:07 +02:00
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 2019-06-09 09:17:19 +02:00
i2c-taos-evm.c i2c: taos-evm: Remove duplicate NULL check 2017-11-02 00:01:21 +01:00
i2c-tegra-bpmp.c i2c: bpmp-tegra: Ignore unknown I2C_M flags 2021-01-27 11:05:34 +01:00
i2c-tegra.c i2c: tegra: Fix Maximum transfer size 2020-06-30 23:17:02 -04:00
i2c-thunderx-pcidrv.c drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers 2022-06-06 08:24:20 +02:00
i2c-tiny-usb.c i2c: i2c-tiny-usb: fix buffer not being DMA capable 2017-05-22 10:33:42 +02:00
i2c-uniphier-f.c i2c: uniphier-f: fix timeout error after reading 8 bytes 2019-12-01 09:17:34 +01:00
i2c-uniphier.c i2c: uniphier: fix violation of tLOW requirement for Fast-mode 2018-12-21 14:15:24 +01:00
i2c-versatile.c i2c: versatile: Make i2c_algo_bit_data const 2017-08-29 22:34:12 +02:00
i2c-via.c
i2c-viapro.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00
i2c-viperboard.c i2c: viperboard: return message count on master_xfer success 2018-05-15 09:31:26 +02:00
i2c-wmt.c i2c: don't print error when adding adapter fails 2016-08-22 08:19:55 +02:00
i2c-xgene-slimpro.c i2c: xgene-slimpro: Support v2 2017-11-01 23:54:53 +01:00
i2c-xiic.c i2c: xiic: Make bus names unique 2022-04-15 14:14:49 +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: Fix a resource leak in the error handling path of 'xlr_i2c_probe()' 2021-11-26 11:36:15 +01:00
i2c-zx2967.c i2c: zx2967: use core to detect 'no zero length' quirk 2019-11-24 08:20:27 +01:00
Kconfig i2c: qup: allow COMPILE_TEST 2022-03-08 19:04:06 +01:00
Makefile i2c: Add Actions Semiconductor Owl family S900 I2C driver 2018-08-04 22:56:02 +02:00
scx200_acb.c Annotate hardware config module parameters in drivers/i2c/ 2017-04-20 12:02:32 +01:00