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Jensen Huang 5a358b9786 i2c: rk3x: fix potential spinlock recursion on poll 
[ Upstream commit 19cde9c92b8d3b7ee555d0da3bcb0232d3a784f4 ]

Possible deadlock scenario (on reboot):
rk3x_i2c_xfer_common(polling)
    -> rk3x_i2c_wait_xfer_poll()
        -> rk3x_i2c_irq(0, i2c);
            --> spin_lock(&i2c->lock);
            ...
        <rk3x i2c interrupt>
        -> rk3x_i2c_irq(0, i2c);
            --> spin_lock(&i2c->lock); (deadlock here)

Store the IRQ number and disable/enable it around the polling transfer.
This patch has been tested on NanoPC-T4.

Signed-off-by: Jensen Huang <jensenhuang@friendlyarm.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-20 11:51:46 +01:00
..
i2c-acorn.c
…
i2c-ali15x3.c
I2C: ali15x3: Do PCI error checks on own line
2023-08-30 21:18:35 +02:00
i2c-ali1535.c
i2c: ali1535: mention that the device should not be disabled
2021-07-02 09:14:46 +02:00
i2c-ali1563.c
i2c: busses: i2c-ali1563: File headers are not good candidates for kernel-doc
2021-05-27 21:29:26 +02:00
i2c-altera.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-amd756-s4882.c
…
i2c-amd756.c
…
i2c-amd8111.c
i2c: amd8111: Fix coding style issues
2021-04-15 22:24:11 +02:00
i2c-amd-mp2-pci.c
i2c: amd-mp2: use msix/msi if the hardware supports
2022-11-01 13:41:22 +01:00
i2c-amd-mp2-plat.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-amd-mp2.h
i2c: amd-mp2: use msix/msi if the hardware supports
2022-11-01 13:41:22 +01:00
i2c-aspeed.c
i2c: aspeed: Handle the coalesced stop conditions with the start conditions.
2024-01-01 12:42:35 +00:00
i2c-at91-core.c
i2c: at91: Use dev_err_probe() instead of dev_err()
2023-08-30 21:19:55 +02:00
i2c-at91-master.c
i2c: Make return value check more accurate and explicit for devm_pinctrl_get()
2023-08-26 00:18:39 +02:00
i2c-at91-slave.c
…
i2c-at91.h
i2c: at91: remove legacy DMA left overs
2020-11-03 21:34:40 +01:00
i2c-au1550.c
i2c: au1550: Remove #ifdef guards for PM related functions
2023-08-08 15:36:48 +02:00
i2c-axxia.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-bcm2835.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-bcm-iproc.c
i2c: iproc: handle invalid slave state
2023-11-20 11:59:36 +01:00
i2c-bcm-kona.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-brcmstb.c
i2c: brcmstb: Convert to devm_platform_ioremap_resource()
2023-08-14 18:09:39 +02:00
i2c-cadence.c
i2c: cadence: Fix the kernel-doc warnings
2023-09-13 11:10:49 +02:00
i2c-cbus-gpio.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-ccgx-ucsi.c
i2c: Introduce common module to instantiate CCGx UCSI
2022-02-15 10:04:53 +01:00
i2c-ccgx-ucsi.h
i2c: Introduce common module to instantiate CCGx UCSI
2022-02-15 10:04:53 +01:00
i2c-cht-wc.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-cp2615.c
i2c: cp2615: check for allocation failure in cp2615_i2c_recv()
2021-06-20 23:13:34 +02:00
i2c-cpm.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-cros-ec-tunnel.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-davinci.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-designware-amdpsp.c
i2c: designware: Add doorbell support for Mendocino
2023-04-20 18:20:05 +08:00
i2c-designware-baytrail.c
i2c: designware: Add AMD PSP I2C bus support
2022-02-11 15:38:23 +01:00
i2c-designware-common.c
i2c: designware: Fix corrupted memory seen in the ISR
2023-12-13 18:44:56 +01:00
i2c-designware-core.h
i2c: designware: fix __i2c_dw_disable() in case master is holding SCL low
2023-09-19 21:57:11 +02:00
i2c-designware-master.c
i2c: designware: Disable TX_EMPTY irq while waiting for block length byte
2023-11-28 17:20:11 +00:00
i2c-designware-pcidrv.c
usb: typec: ucsi: Mark dGPUs as DEVICE scope
2023-06-14 10:47:11 +02:00
i2c-designware-platdrv.c
i2c: designware: Remove #ifdef guards for PM related functions
2023-08-08 15:36:48 +02:00
i2c-designware-slave.c
i2c: designware: fix idx_write_cnt in read loop
2023-06-05 11:58:20 +02:00
i2c-digicolor.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-diolan-u2c.c
…
i2c-dln2.c
i2c: dln2: Use dev_err_probe in probe function
2023-08-10 10:13:40 +02:00
i2c-eg20t.c
i2c: move drivers from strlcpy to strscpy
2022-08-11 23:02:51 +02:00
i2c-elektor.c
Merge branch 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2021-02-22 09:02:24 -08:00
i2c-emev2.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-exynos5.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-fsi.c
…
i2c-gpio.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-gxp.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-highlander.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-hisi.c
I2C has mainly cleanups this time and a few driver improvements. Because
2023-09-04 13:44:11 -07:00
i2c-hix5hd2.c
i2c: hix5hd2: Remove #ifdef guards for PM related functions
2023-08-08 15:36:48 +02:00
i2c-hydra.c
…
i2c-i801.c
i2c: i801: fix potential race in i801_block_transaction_byte_by_byte
2023-11-28 17:20:11 +00:00
i2c-ibm_iic.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-ibm_iic.h
…
i2c-icy.c
i2c: move drivers from strlcpy to strscpy
2022-08-11 23:02:51 +02:00
i2c-img-scb.c
i2c: img-scb: Remove #ifdef guards for PM related functions
2023-08-08 15:36:49 +02:00
i2c-imx-lpi2c.c
I2C has mainly cleanups this time and a few driver improvements. Because
2023-09-04 13:44:11 -07:00
i2c-imx.c
i2c: Make return value check more accurate and explicit for devm_pinctrl_get()
2023-08-26 00:18:39 +02:00
i2c-iop3xx.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-iop3xx.h
…
i2c-isch.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-ismt.c
i2c: ismt: Fix an out-of-bounds bug in ismt_access()
2022-12-07 21:27:08 +01:00
i2c-jz4780.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-kempld.c
i2c: kempld: Convert to use regular device PM
2023-08-08 15:36:49 +02:00
i2c-lpc2k.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-ls2x.c
i2c: ls2x: Add driver for Loongson-2K/LS7A I2C controller
2023-02-02 22:23:59 +01:00
i2c-mchp-pci1xxxx.c
i2c: mchp-pci1xxxx: Avoid cast to incompatible function type
2023-06-05 10:43:45 +02:00
i2c-meson.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-microchip-corei2c.c
i2c: remove redundant dev_err_probe()
2023-08-08 15:36:55 +02:00
i2c-mlxbf.c
i2c: mlxbf: Use devm_platform_get_and_ioremap_resource()
2023-08-14 18:09:44 +02:00
i2c-mlxcpld.c
i2c: mlxcpld: Add support for extended transaction length
2023-08-25 22:13:12 +02:00
i2c-mpc.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-mt65xx.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-mt7621.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-mv64xxx.c
Biggest news is not a patch this time
2023-07-02 10:22:38 -07:00
i2c-mxs.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-nforce2-s4985.c
…
i2c-nforce2.c
i2c: nforce2: Do PCI error check on own line
2023-08-25 22:11:08 +02:00
i2c-nomadik.c
i2c: nomadik: Remove #ifdef guards for PM related functions
2023-08-08 15:36:49 +02:00
i2c-npcm7xx.c
i2c: npcm7xx: Fix callback completion ordering
2023-09-27 21:32:06 +02:00
i2c-nvidia-gpu.c
usb: typec: ucsi: Mark dGPUs as DEVICE scope
2023-06-14 10:47:11 +02:00
i2c-ocores.c
i2c: ocores: Move system PM hooks to the NOIRQ phase
2023-12-13 18:44:57 +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: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-omap.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-opal.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-owl.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-parport.c
i2c: move drivers from strlcpy to strscpy
2022-08-11 23:02:51 +02:00
i2c-pasemi-core.c
i2c: /pasemi: PASemi I2C controller IRQ enablement
2022-11-12 21:30:16 +01:00
i2c-pasemi-core.h
i2c: /pasemi: PASemi I2C controller IRQ enablement
2022-11-12 21:30:16 +01:00
i2c-pasemi-pci.c
i2c: pasemi: Drop I2C classes from platform driver variant
2022-02-15 10:28:34 +01:00
i2c-pasemi-platform.c
i2c: pasemi-platform: Use devm_clk_get_enabled()
2023-06-23 11:56:34 +02:00
i2c-pca-isa.c
isa: Make the remove callback for isa drivers return void
2021-01-26 07:42:27 +01:00
i2c-pca-platform.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-piix4.c
i2c: piix4: Fix adapter not be removed in piix4_remove()
2022-11-01 13:09:33 +01:00
i2c-pnx.c
i2c: pnx: Use devm_platform_get_and_ioremap_resource()
2023-08-14 18:10:14 +02:00
i2c-powermac.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-pxa-pci.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-pxa.c
Revert "i2c: pxa: move to generic GPIO recovery"
2023-11-28 17:20:10 +00:00
i2c-qcom-cci.c
i2c: qcom-cci: Fix error checking in cci_probe()
2023-08-25 22:07:10 +02:00
i2c-qcom-geni.c
i2c: qcom-geni: fix missing clk_disable_unprepare() and geni_se_resources_off()
2024-01-01 12:42:34 +00:00
i2c-qup.c
i2c: qup: Remove #ifdef guards for PM related functions
2023-08-08 15:36:50 +02:00
i2c-rcar.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-riic.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-rk3x.c
i2c: rk3x: fix potential spinlock recursion on poll
2024-01-20 11:51:46 +01:00
i2c-robotfuzz-osif.c
i2c: robotfuzz-osif: fix control-request directions
2021-06-24 22:08:00 +02:00
i2c-rzv2m.c
i2c: rzv2m: Disable the operation of unit in case of error
2023-06-05 12:03:35 +02:00
i2c-s3c2410.c
i2c: s3c2410: Use devm_platform_get_and_ioremap_resource()
2023-08-14 18:10:05 +02:00
i2c-scmi.c
More ACPI updates for 6.5-rc1
2023-07-06 22:25:06 -07:00
i2c-sh7760.c
i2c: Improve size determinations
2023-06-07 14:12:11 +02:00
i2c-sh_mobile.c
i2c: sh_mobile: Use devm_platform_get_and_ioremap_resource()
2023-08-14 18:10:01 +02:00
i2c-sibyte.c
…
i2c-simtec.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-sis96x.c
…
i2c-sis630.c
i2c: fix spelling typos in comments
2022-10-20 23:09:10 +02:00
i2c-sis5595.c
i2c: sis5595: Do PCI error checks on own line
2023-08-25 22:11:03 +02:00
i2c-sprd.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-st.c
i2c: st: Use devm_platform_get_and_ioremap_resource()
2023-08-14 18:09:57 +02:00
i2c-stm32.c
…
i2c-stm32.h
…
i2c-stm32f4.c
i2c: stm32f4: Use devm_platform_get_and_ioremap_resource()
2023-08-14 18:09:48 +02:00
i2c-stm32f7.c
i2c: stm32f7: Fix PEC handling in case of SMBUS transfers
2023-10-21 20:31:04 +02:00
i2c-sun6i-p2wi.c
i2c: sun6i-p2wi: Prevent potential division by zero
2023-11-28 17:19:46 +00:00
i2c-synquacer.c
i2c: synquacer: Use dev_err_probe in probe function
2023-08-10 10:13:57 +02:00
i2c-taos-evm.c
i2c: move drivers from strlcpy to strscpy
2022-08-11 23:02:51 +02:00
i2c-tegra-bpmp.c
I2C: Explicitly include correct DT includes
2023-08-14 17:47:21 +02:00
i2c-tegra.c
I2C has mainly cleanups this time and a few driver improvements. Because
2023-09-04 13:44:11 -07:00
i2c-thunderx-pcidrv.c
drivers: i2c: thunderx: Allow driver to work with ACPI defined TWSI controllers
2022-05-21 13:41:28 +02:00
i2c-tiny-usb.c
i2c: tiny-usb: check usb base class before assuming the interface on device is for this driver
2023-08-14 15:14:42 +02:00
i2c-uniphier-f.c
i2c: uniphier-f: Use devm_clk_get_enabled()
2023-06-23 12:22:34 +02:00
i2c-uniphier.c
i2c: uniphier: Use devm_clk_get_enabled()
2023-06-23 12:22:41 +02:00
i2c-versatile.c
i2c: versatile: Use devm_platform_get_and_ioremap_resource()
2023-06-14 10:40:09 +02:00
i2c-via.c
…
i2c-viapro.c
…
i2c-viperboard.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-virtio.c
i2c: virtio: Remove #ifdef guards for PM related functions
2023-08-08 15:36:53 +02:00
i2c-wmt.c
i2c: wmt: Use devm_platform_get_and_ioremap_resource()
2023-06-14 10:41:17 +02:00
i2c-xgene-slimpro.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00
i2c-xiic.c
i2c: xiic: Correct return value check for xiic_reinit()
2023-09-22 12:04:39 +02:00
i2c-xlp9xx.c
i2c: xlp9xx: Use dev_err_probe in probe function
2023-08-10 10:12:55 +02:00
Kconfig
i2c: i801: Add support for Intel Birch Stream SoC
2023-11-28 17:19:46 +00:00
Makefile
i2c: Add GXP SoC I2C Controller
2023-02-17 23:18:20 +01:00
scx200_acb.c
i2c: Convert to platform remove callback returning void
2023-06-05 09:47:37 +02:00