[PATCH v3 0/7] i2c: stm32f7: enhancements and support for stm32mp25

[PATCH v3 0/7] i2c: stm32f7: enhancements and support for stm32mp25

[Alain Volmat]

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(-)

-- 
2.25.1

Re: [PATCH v3 0/7] i2c: stm32f7: enhancements and support for stm32mp25

[Alain Volmat]

Sorry, please ignore this cover-letter, will send a new one following a
typo in the numbering of this one: 0/7 should have been 0/9

On Fri, Dec 15, 2023 at 06:02:10PM +0100, Alain Volmat wrote:
> 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(-)
> 
> -- 
> 2.25.1
>