Re: [PATCH v9 1/2] i2c: riic: Implement bus recovery

[Wolfram Sang]

On Wed, Apr 30, 2025 at 08:46:46PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> 
> Implement I2C bus recovery support for the RIIC controller by making use
> of software-controlled SCL and SDA line manipulation. The controller allows
> forcing SCL and SDA levels through control bits, which enables generation
> of manual clock pulses and a stop condition to free a stuck bus.
> 
> This implementation wires up the bus recovery mechanism using
> i2c_generic_scl_recovery and provides get/set operations for SCL and SDA.
> 
> This allows the RIIC driver to recover from bus hang scenarios where SDA
> is held low by a slave.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>

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