Hi,
On Saturday 21 March 2015 02:59 AM, Arun Ramamurthy wrote:
>
>
> On 15-03-20 02:26 PM, Dmitry Torokhov wrote:
>> Hi Arun,
>>
>> On Fri, Mar 20, 2015 at 02:07:08PM -0700, Arun Ramamurthy wrote:
>>> Adding devm_of_phy_get_by_index to get phys by supplying an index
>>> and not a phy name when multiple phys are declared
I think a bit more explanation on why get_by_index is needed here.
>>>
>>> Reviewed-by: Ray Jui <rjui@xxxxxxxxxxxx>
>>> Reviewed-by: Scott Branden <sbranden@xxxxxxxxxxxx>
>>> Signed-off-by: Arun Ramamurthy <arun.ramamurthy@xxxxxxxxxxxx>
>>> ---
>>> drivers/phy/phy-core.c | 30 ++++++++++++++++++++++++++++++
>>> include/linux/phy/phy.h | 2 ++
>>> 2 files changed, 32 insertions(+)
>>>
>>> diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
>>> index a12d353..0c03876 100644
>>> --- a/drivers/phy/phy-core.c
>>> +++ b/drivers/phy/phy-core.c
>>> @@ -622,6 +622,36 @@ struct phy *devm_of_phy_get(struct device *dev, struct
>>> device_node *np,
>>> EXPORT_SYMBOL_GPL(devm_of_phy_get);
>>>
>>> /**
>>> + * devm_of_phy_get_by_index() - lookup and obtain a reference to a phy by
>>> index.
>>> + * @dev: device that requests this phy
>>> + * @np: node containing the phy
>>> + * @index: index of the phy
>>> + *
>>> + * Gets the phy using _of_phy_get(), and associates a device with it using
>>> + * devres. On driver detach, release function is invoked on the devres data,
>>> + * then, devres data is freed.
>>> + *
>>> + */
>>> +struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node
>>> *np,
>>> + int index)
>>> +{
>>> + struct phy **ptr, *phy;
>>> +
>>> + ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL);
>>> + if (!ptr)
>>> + return ERR_PTR(-ENOMEM);
>>> +
>>> + phy = _of_phy_get(np, index);
>>> + if (!IS_ERR(phy)) {
>>> + *ptr = phy;
>>> + devres_add(dev, ptr);
>>> + } else {
>>> + devres_free(ptr);
>>> + }
>>> +
>>> + return phy;
>>> +}
>>
>> You want EXPORT_SYMBOL_GPL(devm_of_phy_get_by_index); here.
Also update the Documentation/phy.txt.
-Kishon
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