Re: [PATCH v8 2/2] i2c: i2c-qcom-geni: Add Block event interrupt support

[Dmitry Baryshkov]

On Thu, Sep 25, 2025 at 05:30:35PM +0530, Jyothi Kumar Seerapu wrote:
> From: Jyothi Kumar Seerapu <quic_jseerapu@xxxxxxxxxxx>
> 
> The I2C driver gets an interrupt upon transfer completion.
> When handling multiple messages in a single transfer, this
> results in N interrupts for N messages, leading to significant
> software interrupt latency.
> 
> To mitigate this latency, utilize Block Event Interrupt (BEI)
> mechanism. Enabling BEI instructs the hardware to prevent interrupt
> generation and BEI is disabled when an interrupt is necessary.
> 
> Large I2C transfer can be divided into chunks of messages internally.
> Interrupts are not expected for the messages for which BEI bit set,
> only the last message triggers an interrupt, indicating the completion of
> N messages. This BEI mechanism enhances overall transfer efficiency.
> 
> BEI optimizations are currently implemented for I2C write transfers only,
> as there is no use case for multiple I2C read messages in a single transfer
> at this time.
> 
> Signed-off-by: Jyothi Kumar Seerapu <quic_jseerapu@xxxxxxxxxxx>
> ---
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>


-- 
With best wishes
Dmitry