diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
| commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
| tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/phy.txt | |
| parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) | |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/phy.txt')
| -rw-r--r-- | kernel/Documentation/phy.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/Documentation/phy.txt b/kernel/Documentation/phy.txt index 371361c69..b388c5af9 100644 --- a/kernel/Documentation/phy.txt +++ b/kernel/Documentation/phy.txt @@ -76,6 +76,8 @@ struct phy *phy_get(struct device *dev, const char *string); struct phy *phy_optional_get(struct device *dev, const char *string); struct phy *devm_phy_get(struct device *dev, const char *string); struct phy *devm_phy_optional_get(struct device *dev, const char *string); +struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np, + int index); phy_get, phy_optional_get, devm_phy_get and devm_phy_optional_get can be used to get the PHY. In the case of dt boot, the string arguments @@ -86,7 +88,10 @@ successful PHY get. On driver detach, release function is invoked on the the devres data and devres data is freed. phy_optional_get and devm_phy_optional_get should be used when the phy is optional. These two functions will never return -ENODEV, but instead returns NULL when -the phy cannot be found. +the phy cannot be found.Some generic drivers, such as ehci, may use multiple +phys and for such drivers referencing phy(s) by name(s) does not make sense. In +this case, devm_of_phy_get_by_index can be used to get a phy reference based on +the index. It should be noted that NULL is a valid phy reference. All phy consumer calls on the NULL phy become NOPs. That is the release calls, |