[PATCH v6 11/12] platform/chrome: Introduce device tree hardware prober

[Tzung-Bi Shih]

On Wed, Sep 04, 2024 at 05:00:13PM +0800, Chen-Yu Tsai wrote:
> diff --git a/drivers/platform/chrome/chromeos_of_hw_prober.c b/drivers/platform/chrome/chromeos_of_hw_prober.c
[...]
> +static int chromeos_of_hw_prober_probe(struct platform_device *pdev)
> +{
> +	for (size_t i = 0; i < ARRAY_SIZE(hw_prober_platforms); i++) {
> +		int ret;
> +
> +		if (!of_machine_is_compatible(hw_prober_platforms[i].compatible))
> +			continue;
> +
> +		ret = hw_prober_platforms[i].prober(&pdev->dev, hw_prober_platforms[i].data);
> +		/* Ignore unrecoverable errors and keep going through other probers */
> +		if (ret == -EPROBE_DEFER)
> +			return ret;

Is it harmless if some of the components get probed multiple times?  E.g.:
comp1 probed -> comp2 probed -> comp3 returned -EPROBE_DEFER -> some time
later, chromeos_of_hw_prober_probe() gets called again.