OrangePi_CM5/drivers/i2c
Andrew Lunn 63e72417a1 i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag set
[ Upstream commit d36678f7905cbd1dc55a8a96e066dafd749d4600 ]

Recent changes to the DMA code has resulting in the IMX driver failing
I2C transfers when the buffer has been vmalloc. Only perform DMA
transfers if the message has the I2C_M_DMA_SAFE flag set, indicating
the client is providing a buffer which is DMA safe.

This is a minimal fix for stable. The I2C core provides helpers to
allocate a bounce buffer. For a fuller fix the master should make use
of these helpers.

Fixes: 4544b9f25e ("dma-mapping: Add vmap checks to dma_map_single()")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-08 11:23:59 +01:00
..
algos i2c: algo: pca: Reapply i2c bus settings after reset 2020-09-09 10:22:40 +02:00
busses i2c: imx: Only DMA messages with I2C_M_DMA_SAFE flag set 2022-12-08 11:23:59 +01:00
muxes i2c: mux-gpmux: Add of_node_put() when breaking out of loop 2022-08-21 15:15:49 +02:00
Kconfig i2c: add slave testunit driver 2020-09-21 11:02:17 +02:00
Makefile i2c: add slave testunit driver 2020-09-21 11:02:17 +02:00
i2c-boardinfo.c
i2c-core-acpi.c i2c: acpi: fix resource leak in reconfiguration device addition 2021-10-13 10:04:29 +02:00
i2c-core-base.c i2c: Fix a potential use after free 2022-08-21 15:15:40 +02:00
i2c-core-of.c
i2c-core-slave.c i2c: slave: add sanity check when unregistering 2020-07-28 18:37:17 +02:00
i2c-core-smbus.c
i2c-core.h i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device() 2020-08-25 09:22:09 +02:00
i2c-dev.c i2c: validate user data in compat ioctl 2022-01-05 12:40:32 +01:00
i2c-mux.c
i2c-slave-eeprom.c i2c: busses: Use fallthrough pseudo-keyword 2020-07-23 22:04:08 +02:00
i2c-slave-testunit.c i2c: add slave testunit driver 2020-09-21 11:02:17 +02:00
i2c-smbus.c i2c: smbus: add core function handling SMBus host-notify 2020-09-09 10:38:28 +02:00
i2c-stub.c