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SubjectRe: [net-next: PATCH v2 2/5] device property: Introduce fwnode_get_phy_mode()
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On Sunday, December 31, 2017 12:58:37 PM CET Marcin Wojtas wrote:
> Until now there were two almost identical functions for
> obtaining network PHY mode - of_get_phy_mode() and,
> more generic, device_get_phy_mode(). However it is not uncommon,
> that the network interface is represented as a child
> of the actual controller, hence it is not associated
> directly to any struct device, required by the latter
> routine.
>
> This commit allows for getting the PHY mode for
> children nodes in the ACPI world by introducing a new function -
> fwnode_get_phy_mode(). This commit also changes
> device_get_phy_mode() routine to be its wrapper, in order
> to prevent unnecessary duplication.
>
> Signed-off-by: Marcin Wojtas <mw@semihalf.com>

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

> ---
> drivers/base/property.c | 24 ++++++++++++++++----
> include/linux/property.h | 1 +
> 2 files changed, 20 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/base/property.c b/drivers/base/property.c
> index f261d1a..7c4a53d 100644
> --- a/drivers/base/property.c
> +++ b/drivers/base/property.c
> @@ -1126,21 +1126,21 @@ enum dev_dma_attr device_get_dma_attr(struct device *dev)
> EXPORT_SYMBOL_GPL(device_get_dma_attr);
>
> /**
> - * device_get_phy_mode - Get phy mode for given device
> - * @dev: Pointer to the given device
> + * fwnode_get_phy_mode - Get phy mode for given firmware node
> + * @fwnode: Pointer to the given node
> *
> * The function gets phy interface string from property 'phy-mode' or
> * 'phy-connection-type', and return its index in phy_modes table, or errno in
> * error case.
> */
> -int device_get_phy_mode(struct device *dev)
> +int fwnode_get_phy_mode(struct fwnode_handle *fwnode)
> {
> const char *pm;
> int err, i;
>
> - err = device_property_read_string(dev, "phy-mode", &pm);
> + err = fwnode_property_read_string(fwnode, "phy-mode", &pm);
> if (err < 0)
> - err = device_property_read_string(dev,
> + err = fwnode_property_read_string(fwnode,
> "phy-connection-type", &pm);
> if (err < 0)
> return err;
> @@ -1151,6 +1151,20 @@ int device_get_phy_mode(struct device *dev)
>
> return -ENODEV;
> }
> +EXPORT_SYMBOL_GPL(fwnode_get_phy_mode);
> +
> +/**
> + * device_get_phy_mode - Get phy mode for given device
> + * @dev: Pointer to the given device
> + *
> + * The function gets phy interface string from property 'phy-mode' or
> + * 'phy-connection-type', and return its index in phy_modes table, or errno in
> + * error case.
> + */
> +int device_get_phy_mode(struct device *dev)
> +{
> + return fwnode_get_phy_mode(dev_fwnode(dev));
> +}
> EXPORT_SYMBOL_GPL(device_get_phy_mode);
>
> static void *fwnode_get_mac_addr(struct fwnode_handle *fwnode,
> diff --git a/include/linux/property.h b/include/linux/property.h
> index 35620e0..9b13332 100644
> --- a/include/linux/property.h
> +++ b/include/linux/property.h
> @@ -279,6 +279,7 @@ int device_get_phy_mode(struct device *dev);
>
> void *device_get_mac_address(struct device *dev, char *addr, int alen);
>
> +int fwnode_get_phy_mode(struct fwnode_handle *fwnode);
> void *fwnode_get_mac_address(struct fwnode_handle *fwnode,
> char *addr, int alen);
> struct fwnode_handle *fwnode_graph_get_next_endpoint(
>


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