On Mon, Nov 29, 2021 at 02:31:16PM +0530, Shubhrajyoti Datta wrote:
> From: Robert Hancock <robert.hancock@xxxxxxxxxx>
>
> Hook up the standard GPIO/pinctrl-based recovery support for this
> driver.
>
> Based on a patch "i2c: cadence: Recover bus after controller reset" by
> Chirag Parekh in the Xilinx kernel Git tree, but simplified to make use
> of more common code.
Guys, sorry for the long delay.
> if (time_left == 0) {
> + i2c_recover_bus(adap);
According to I2C specs, recovery should be done at the beginning of a
transfer when SDA is detected low. I think this makes sense because
other issues may have stalled the bus as well (e.g. broken bootloader).
Makes sense?
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