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| author | Axel Lin <axel.lin@ingics.com> | 2015-02-24 19:52:47 +0800 |
|---|---|---|
| committer | Kishon Vijay Abraham I <kishon@ti.com> | 2015-03-04 18:31:47 +0530 |
| commit | 21647f73835efdd0cc71b899668a8848ad9bd8cf (patch) | |
| tree | 26dc6c5a649bd4355e6d22d5b7108b44aae6645a | |
| parent | c517d838eb7d07bbe9507871fab3931deccff539 (diff) | |
| download | linux-21647f73835efdd0cc71b899668a8848ad9bd8cf.tar.gz linux-21647f73835efdd0cc71b899668a8848ad9bd8cf.tar.bz2 linux-21647f73835efdd0cc71b899668a8848ad9bd8cf.zip | |
phy: miphy28lp: Avoid calling of_get_child_count() multiple times
Currently, of_get_child_count() is called in each iteration of the for loop in
miphy28lp_xlate(). This patch stores the return value of of_get_child_count()
in miphy_dev->nphys and call of_get_child_count() once in miphy28lp_probe().
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
| -rw-r--r-- | drivers/phy/phy-miphy28lp.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/phy/phy-miphy28lp.c b/drivers/phy/phy-miphy28lp.c index 9b2848e6115d..d44493230d0c 100644 --- a/drivers/phy/phy-miphy28lp.c +++ b/drivers/phy/phy-miphy28lp.c @@ -228,6 +228,7 @@ struct miphy28lp_dev { struct regmap *regmap; struct mutex miphy_mutex; struct miphy28lp_phy **phys; + int nphys; }; struct miphy_initval { @@ -1116,7 +1117,7 @@ static struct phy *miphy28lp_xlate(struct device *dev, return ERR_PTR(-EINVAL); } - for (index = 0; index < of_get_child_count(dev->of_node); index++) + for (index = 0; index < miphy_dev->nphys; index++) if (phynode == miphy_dev->phys[index]->phy->dev.of_node) { miphy_phy = miphy_dev->phys[index]; break; @@ -1200,15 +1201,15 @@ static int miphy28lp_probe(struct platform_device *pdev) struct miphy28lp_dev *miphy_dev; struct phy_provider *provider; struct phy *phy; - int chancount, port = 0; - int ret; + int ret, port = 0; miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL); if (!miphy_dev) return -ENOMEM; - chancount = of_get_child_count(np); - miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount, + miphy_dev->nphys = of_get_child_count(np); + miphy_dev->phys = devm_kzalloc(&pdev->dev, + sizeof(phy) * miphy_dev->nphys, GFP_KERNEL); if (!miphy_dev->phys) return -ENOMEM; |