| Message ID | 1616998145-28278-1-git-send-email-alain.volmat@foss.st.com |
|---|---|
| Headers | show |
| Series | i2c: stm32f7: add SMBus-Alert support | expand |
Hi Wolfram, Gentle reminder about this serie about SMBus-Alert. Could you have a look at it ? Thanks Alain On Mon, Mar 29, 2021 at 08:09:03AM +0200, Alain Volmat wrote: > This serie adds support for SMBus Alert on the STM32F7. > A new binding st,smbus-alert is added in order to differenciate > with the existing smbus binding. > > SMBA alert control and status logic must be enabled along with > SMBALERT# pin configured via pinctrl in the device tree. This is the > rational for adding "st,smbus-alert" property. > > --- > v3: > use lore.kernel.org links instead of marc.info > > v2: > When SMBUS alert isn't available on the board (SMBA unused), this > logic musn't be enabled. Enabling it unconditionally wrongly lead to get > SMBA interrupts. > So, add "st,smbus-alert" dedicated binding to have a smbus alert with a > consistent pin configuration in DT. > > Alain Volmat (2): > dt-bindings: i2c: stm32f7: add st,smbus-alert binding for SMBus Alert > i2c: stm32f7: add SMBus-Alert support > > .../devicetree/bindings/i2c/st,stm32-i2c.yaml | 5 ++ > drivers/i2c/busses/i2c-stm32f7.c | 73 +++++++++++++++++++ > 2 files changed, 78 insertions(+) > > -- > 2.17.1 >
> Gentle reminder about this serie about SMBus-Alert. Could you have > a look at it ? Yes. I first thought to do this after increasing SMBus Block length to 255. But because of the userspace ABI problems, it probably makes sense to work on this first. Here, no userspace is involved.