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authorRob Herring <robh@kernel.org>2023-03-10 17:47:00 +0300
committerDamien Le Moal <damien.lemoal@opensource.wdc.com>2023-03-23 04:29:26 +0300
commite1e0a32eae7fd9566769c612f0b074eaf64b9cea (patch)
tree75eb2e68916e22c7510e7a3c9f4ca5ba66fceffb
parent71424f059c423bdb83f0bcc06644f29fe89b50cc (diff)
downloadlinux-e1e0a32eae7fd9566769c612f0b074eaf64b9cea.tar.xz
ata: Use of_property_present() for testing DT property presence
It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
-rw-r--r--drivers/ata/ahci_mtk.c2
-rw-r--r--drivers/ata/libahci_platform.c2
-rw-r--r--drivers/ata/sata_dwc_460ex.c4
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/ata/ahci_mtk.c b/drivers/ata/ahci_mtk.c
index c056378e3e72..5714efe3f8e7 100644
--- a/drivers/ata/ahci_mtk.c
+++ b/drivers/ata/ahci_mtk.c
@@ -106,7 +106,7 @@ static int mtk_ahci_parse_property(struct ahci_host_priv *hpriv,
struct device_node *np = dev->of_node;
/* enable SATA function if needed */
- if (of_find_property(np, "mediatek,phy-mode", NULL)) {
+ if (of_property_present(np, "mediatek,phy-mode")) {
plat->mode = syscon_regmap_lookup_by_phandle(
np, "mediatek,phy-mode");
if (IS_ERR(plat->mode)) {
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index b9e336bacf17..f00da19670b0 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -363,7 +363,7 @@ static int ahci_platform_get_phy(struct ahci_host_priv *hpriv, u32 port,
switch (rc) {
case -ENOSYS:
/* No PHY support. Check if PHY is required. */
- if (of_find_property(node, "phys", NULL)) {
+ if (of_property_present(node, "phys")) {
dev_err(dev,
"couldn't get PHY in node %pOFn: ENOSYS\n",
node);
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 21d77633a98f..3a30e6eff8a8 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -810,7 +810,7 @@ static int sata_dwc_dma_get_channel(struct sata_dwc_device_port *hsdevp)
struct device *dev = hsdev->dev;
#ifdef CONFIG_SATA_DWC_OLD_DMA
- if (!of_find_property(dev->of_node, "dmas", NULL))
+ if (!of_property_present(dev->of_node, "dmas"))
return sata_dwc_dma_get_channel_old(hsdevp);
#endif
@@ -1180,7 +1180,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
}
#ifdef CONFIG_SATA_DWC_OLD_DMA
- if (!of_find_property(np, "dmas", NULL)) {
+ if (!of_property_present(np, "dmas")) {
err = sata_dwc_dma_init_old(ofdev, hsdev);
if (err)
return err;