diff mbox series

[03/10] phy: qcom-qmp-ufs: clean up device-tree parsing

Message ID 20221024090041.19574-4-johan+linaro@kernel.org
State New
Headers
Series phy: qcom-qmp-ufs: fix sc8280xp binding |

Commit Message

Johan Hovold Oct. 24, 2022, 9 a.m. UTC 
  Since the QMP driver split there will be at most a single child node so
drop the obsolete iteration construct.

While at it, drop the verbose error logging that would have been
printed also on probe deferrals.

Note that there's no need to check if there are additional child nodes
(the kernel is not a devicetree validator), but let's return an error if
there are no child nodes at all for now.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

Comments

Dmitry Baryshkov Oct. 24, 2022, 1:30 p.m. UTC | #1 
On 24/10/2022 12:00, Johan Hovold wrote:
> Since the QMP driver split there will be at most a single child node so
> drop the obsolete iteration construct.
> 
> While at it, drop the verbose error logging that would have been
> printed also on probe deferrals.
> 
> Note that there's no need to check if there are additional child nodes
> (the kernel is not a devicetree validator), but let's return an error if
> there are no child nodes at all for now.
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff mbox series

Patch

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
index b4c3b3d97f52..25744b3576f3 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
@@ -1048,7 +1048,6 @@  static int qmp_ufs_probe(struct platform_device *pdev)
 	void __iomem *serdes;
 	const struct qmp_phy_cfg *cfg = NULL;
 	struct qmp_ufs *qmp;
-	int num, id;
 	int ret;
 
 	qmp = devm_kzalloc(dev, sizeof(*qmp), GFP_KERNEL);
@@ -1074,23 +1073,15 @@  static int qmp_ufs_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	num = of_get_available_child_count(dev->of_node);
-	/* do we have a rogue child node ? */
-	if (num > 1)
+	child = of_get_next_available_child(dev->of_node, NULL);
+	if (!child)
 		return -EINVAL;
 
-	id = 0;
-	for_each_available_child_of_node(dev->of_node, child) {
-		/* Create per-lane phy */
-		ret = qmp_ufs_create(dev, child, serdes, cfg);
-		if (ret) {
-			dev_err(dev, "failed to create lane%d phy, %d\n",
-				id, ret);
-			goto err_node_put;
-		}
+	ret = qmp_ufs_create(dev, child, serdes, cfg);
+	if (ret)
+		goto err_node_put;
 
-		id++;
-	}
+	of_node_put(child);
 
 	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);