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linux/drivers/base/regmap
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Jim Wylder 611b7eb19d
regmap-i2c: Subtract reg size from max_write 
Currently, when an adapter defines a max_write_len quirk,
the data will be chunked into data sizes equal to the
max_write_len quirk value.  But the payload will be increased by
the size of the register address before transmission.  The
resulting value always ends up larger than the limit set
by the quirk.

Avoid this error by setting regmap's max_write to the quirk's
max_write_len minus the number of bytes for the register and
padding.  This allows the chunking to work correctly for this
limited case without impacting other use-cases.

Signed-off-by: Jim Wylder <jwylder@google.com>
Link: https://msgid.link/r/20240523211437.2839942-1-jwylder@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-05-27 01:30:33 +01:00
..
internal.h regmap: kunit: Create a struct device for the regmap 2024-04-08 16:38:07 +01:00
Kconfig regmap: Provide user selectable option to enable regmap 2023-07-13 16:20:28 +01:00
Makefile regmap: Provide a ram backed regmap with raw support 2023-06-12 14:47:54 +01:00
regcache-flat.c regmap: rework ->max_register handling 2024-02-05 14:32:35 +00:00
regcache-maple.c regmap: kunit: Add some test cases and a few small 2024-04-09 23:27:14 +01:00
regcache-rbtree.c regmap: rbtree: Fix wrong register marked as in-cache when creating new node 2023-09-22 16:54:00 +01:00
regcache.c regmap: rework ->max_register handling 2024-02-05 14:32:35 +00:00
regmap-ac97.c regmap: add proper SPDX identifiers on files that did not have them. 2019-04-25 20:22:15 +01:00
regmap-debugfs.c mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER 2024-01-08 15:27:15 -08:00
regmap-fsi.c regmap: Add FSI bus support 2022-11-25 19:17:02 +00:00
regmap-i2c.c regmap-i2c: Subtract reg size from max_write 2024-05-27 01:30:33 +01:00
regmap-i3c.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-irq.c regmap-irq: Fix out-of-bounds access when allocating config buffers 2023-07-12 12:05:10 +01:00
regmap-kunit.c regmap: kunit: Fix array overflow in stride() test 2024-05-17 18:23:12 +01:00
regmap-mdio.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-mmio.c regmap: mmio: Remove unused 64-bit support code 2023-07-09 22:48:46 +01:00
regmap-ram.c regmap: kunit: Create a struct device for the regmap 2024-04-08 16:38:07 +01:00
regmap-raw-ram.c regmap: kunit: Create a struct device for the regmap 2024-04-08 16:38:07 +01:00
regmap-sccb.c regmap: Constify static regmap_bus structs 2022-04-04 08:41:50 +01:00
regmap-sdw-mbq.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-sdw.c regmap: Drop capitalisation in MODULE_DESCRIPTION() 2024-04-10 22:45:52 +01:00
regmap-slimbus.c regmap: Constify static regmap_bus structs 2022-04-04 08:41:50 +01:00
regmap-spi-avmm.c regmap: Drop initial version of maximum transfer length fixes 2023-07-17 06:15:14 +01:00
regmap-spi.c regmap: spi: Add missing MODULE_DESCRIPTION() 2024-04-10 22:45:53 +01:00
regmap-spmi.c regmap: add proper SPDX identifiers on files that did not have them. 2019-04-25 20:22:15 +01:00
regmap-w1.c regmap: Constify static regmap_bus structs 2022-04-04 08:41:50 +01:00
regmap.c regmap: Add regmap_read_bypassed() 2024-04-08 14:09:58 +01:00
trace.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00