On Tue, Jul 23, 2019 at 11:18:31PM +0100, Suzuki K Poulose wrote:
> We have device iterators to find a particular device matching a criteria
> for a given bus/class/driver. i.e, {bus,class,driver}_find_device()
> APIs. The matching criteria is a function pointer for the APIs. Often the
> lookup is based on a generic property of a device (e.g, name, fwnode, of node
> pointer or device type) rather than a driver specific information. However,
> each
> driver writes up its own "match" function, spilling the similar match
> functions
> all over the driver subsystems.
>
> This series adds device match helpers by generic device properties of a
> device.
> Using these generic match functions, introduce wrappers to the existing
> *_find_device() helpers and converts the existing users to use the new
> wrappers.
> i.e,
> {bus/class/driver}_find_device_by_name()
> {bus/class/driver}_find_device_by_fwnode()
> {bus/class/driver}_find_device_by_devt()
> {bus/class/driver}_find_device_by_acpi_dev()
>
> Also adds a wrapper for finding a platform device by driver, to avoid
> spilling the platform_bus internals in the individual drivers. Applies
> on 5.3-rc1.
>
> [0] git://linux-arm.org/linux-skp.git driver-cleanup/v3
> RFC[1]
> https://marc.info/[email protected]
> V1 [2]
> https://marc.info/[email protected]
> V2 [3]
> https://marc.info/[email protected]
>
> Changes since v2:
> - Merge the device match helper introduction patch with the variants
> of the helpers, for better review.
> - Use platform_find_device_by_driver for mcde drm driver.
This looks good to me at first glance, thanks for doing this work.
I'll wait a few days to collect acks from various subsystem maintainers
before taking the series in my tree.
thanks,
greg k-h
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