Re: [PATCH v3 02/11] i2c: acpi: Use acpi_dev_ready_for_enumeration() helper

[Wolfram Sang]

On Sun, Oct 10, 2021 at 08:56:58PM +0200, Hans de Goede wrote:
> The clk and regulator frameworks expect clk/regulator consumer-devices
> to have info about the consumed clks/regulators described in the device's
> fw_node.
> 
> To work around cases where this info is not present in the firmware tables,
> which is often the case on x86/ACPI devices, both frameworks allow the
> provider-driver to attach info about consumers to the clks/regulators
> when registering these.
> 
> This causes problems with the probe ordering wrt drivers for consumers
> of these clks/regulators. Since the lookups are only registered when the
> provider-driver binds, trying to get these clks/regulators before then
> results in a -ENOENT error for clks and a dummy regulator for regulators.
> 
> To ensure the correct probe-ordering the ACPI core has code to defer the
> enumeration of consumers affected by this until the providers are ready.
> 
> Call the new acpi_dev_ready_for_enumeration() helper to avoid
> enumerating / instantiating i2c-clients too early.
> 
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>

If the ACPI and I2C-ACPI maintainers are happy, I am fine with this,
too:

Acked-by: Wolfram Sang <wsa@xxxxxxxxxx>

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