[PATCH v3 0/9] i2c: stm32f7: enhancements and support for stm32mp25

Alain Volmat
2023-12-15T17:07:25Z

This series first perform enhancements in the way interrupt are handled
and cleanup in messages.
Then it adds support for the stm32mp25 which differs in that
it only has a single irq line for both event/error and has a
different handling of the FastModePlus.
Support is then enabled within the stm32mp25 related device-trees.

Changelog:
v3: - addition of 2 commits dealing with readl_relaxed(I2C_ISR) in
isr handler and a second one to use dev_err_probe during probe
- correction of SOB in commit

v2: - correct st,stm32-i2c.yaml. Use if then else scheme to indicate
number of interrupts / interrupt-names depending on the
compatible while keeping the description within the common part

- correct 2 maybe-uninitialized warnings
* ret in stm32f7_i2c_write_fm_plus_bits
* irq_error in stm32f7_i2c_probe, move the platform_get_irq
within the same if block as devm_request_threaded_irq

Alain Volmat (9):
i2c: stm32f7: use dev_err_probe upon calls of devm_request_irq
i2c: stm32f7: perform most of irq job in threaded handler
i2c: stm32f7: simplify status messages in case of errors
dt-bindings: i2c: document st,stm32mp25-i2c compatible
i2c: stm32f7: perform I2C_ISR read once at beginning of event isr
i2c: stm32f7: add support for stm32mp25 soc
arm64: dts: st: add all 8 i2c nodes on stm32mp251
arm64: dts: st: add i2c2/i2c8 pins for stm32mp25
arm64: dts: st: add i2c2 / i2c8 properties on stm32mp257f-ev1

.../devicetree/bindings/i2c/st,stm32-i2c.yaml | 28 ++
arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi | 36 ++
arch/arm64/boot/dts/st/stm32mp251.dtsi | 96 +++++
arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 20 +
drivers/i2c/busses/i2c-stm32f7.c | 342 +++++++++---------
5 files changed, 358 insertions(+), 164 deletions(-)

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2.25.1