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author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-04-01 14:21:02 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-04-01 14:21:02 -0700 |
commit | 28a1b05678f4e88de90b0987b06e13c454ad9bd6 (patch) | |
tree | c02b70e6890b5b650451df683c6ffbdfab4ad94f /include | |
parent | 91e5bfe317d8f8471fbaa3e70cf66cae1314a516 (diff) | |
parent | 31396626eaf0be0e8edc87b801fcd205016e42d9 (diff) |
Merge tag 'i2c-for-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"i2c-core updates (collected by Wolfram):
- remove last user and unexport i2c_of_match_device()
- irq usage cleanup from Jiri
i2c-host updates (collected by Andi):
Refactoring and cleanups:
- octeon, cadence, i801, pasemi, mlxbf, bcm-iproc: general
refactorings
- octeon: remove 10-bit address support
Improvements:
- amd-asf: improved error handling
- designware: use guard(mutex)
- amd-asf, designware: update naming to follow latest specs
- cadence: fix cleanup path in probe
- i801: use MMIO and I/O mapping helpers to access registers
- pxa: handle error after clk_prepare_enable
New features:
- added i2c_10bit_addr_*_from_msg() and updated multiple drivers
- omap: added multiplexer state handling
- qcom-geni: update frequency configuration
- qup: introduce DMA usage policy
New hardware support:
- exynos: add support for Samsung exynos7870
- k1: add support for spacemit k1 (new driver)
- imx: add support for i.mx94 lpi2c
- rk3x: add support for rk3562
- designware: add support for Renesas RZ/N1D
Multiplexers:
- ltc4306, reg: fix assignment in platform_driver structure
at24 eeprom updates (collected by Bartosz):
- add two new compatible entries to the DT binding document
- drop of_match_ptr() and ACPI_PTR() macros"
* tag 'i2c-for-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (50 commits)
dt-bindings: i2c: snps,designware-i2c: describe Renesas RZ/N1D variant
irqdomain: i2c: Switch to irq_find_mapping()
i2c: iproc: Refactor prototype and remove redundant error checks
i2c: qcom-geni: Update i2c frequency table to match hardware guidance
i2c: mlxbf: Use readl_poll_timeout_atomic() for polling
i2c: pasemi: Add registers bits and switch to BIT()
i2c: k1: Initialize variable before use
i2c: spacemit: add support for SpacemiT K1 SoC
dt-bindings: i2c: spacemit: add support for K1 SoC
i2c: omap: Add support for setting mux
dt-bindings: i2c: omap: Add mux-states property
i2c: octeon: remove 10-bit addressing support
i2c: octeon: fix return commenting
i2c: i801: Use MMIO if available
i2c: i801: Switch to iomapped register access
i2c: i801: Improve too small kill wait time in i801_check_post
i2c: i801: Move i801_wait_intr and i801_wait_byte_done in the code
i2c: i801: Cosmetic improvements
i2c: cadence: Move reset_control_assert after pm_runtime_set_suspended in probe error path
i2c: cadence: Simplify using devm_clk_get_enabled()
...
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/i2c.h | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 2b2af24d2a43..2e4903b7f7bc 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -952,6 +952,21 @@ static inline u8 i2c_8bit_addr_from_msg(const struct i2c_msg *msg) return (msg->addr << 1) | (msg->flags & I2C_M_RD); } +/* + * 10-bit address + * addr_1: 5'b11110 | addr[9:8] | (R/nW) + * addr_2: addr[7:0] + */ +static inline u8 i2c_10bit_addr_hi_from_msg(const struct i2c_msg *msg) +{ + return 0xf0 | ((msg->addr & GENMASK(9, 8)) >> 7) | (msg->flags & I2C_M_RD); +} + +static inline u8 i2c_10bit_addr_lo_from_msg(const struct i2c_msg *msg) +{ + return msg->addr & GENMASK(7, 0); +} + u8 *i2c_get_dma_safe_msg_buf(struct i2c_msg *msg, unsigned int threshold); void i2c_put_dma_safe_msg_buf(u8 *buf, struct i2c_msg *msg, bool xferred); @@ -1029,10 +1044,6 @@ static inline struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node return i2c_get_adapter_by_fwnode(of_fwnode_handle(node)); } -const struct of_device_id -*i2c_of_match_device(const struct of_device_id *matches, - struct i2c_client *client); - int of_i2c_get_board_info(struct device *dev, struct device_node *node, struct i2c_board_info *info); @@ -1053,13 +1064,6 @@ static inline struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node return NULL; } -static inline const struct of_device_id -*i2c_of_match_device(const struct of_device_id *matches, - struct i2c_client *client) -{ - return NULL; -} - static inline int of_i2c_get_board_info(struct device *dev, struct device_node *node, struct i2c_board_info *info) |