mfd: various: 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: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230310144712.1543379-1-robh@kernel.org

diff --git a/drivers/mfd/bcm2835-pm.c b/drivers/mfd/bcm2835-pm.c
index 2c0aa2a..3cb2b94 100644 (file)
--- a/drivers/mfd/bcm2835-pm.c
+++ b/drivers/mfd/bcm2835-pm.c
@@ -28,7 +28,7 @@ static const struct mfd_cell bcm2835_power_devs[] = {
 static int bcm2835_pm_get_pdata(struct platform_device *pdev,
                                struct bcm2835_pm *pm)
 {
-       if (of_find_property(pm->dev->of_node, "reg-names", NULL)) {
+       if (of_property_present(pm->dev->of_node, "reg-names")) {
                struct resource *res;
 
                pm->base = devm_platform_ioremap_resource_byname(pdev, "pm");

diff --git a/drivers/mfd/khadas-mcu.c b/drivers/mfd/khadas-mcu.c
index 7338cc1..1c807c0 100644 (file)
--- a/drivers/mfd/khadas-mcu.c
+++ b/drivers/mfd/khadas-mcu.c
@@ -112,7 +112,7 @@ static int khadas_mcu_probe(struct i2c_client *client)
        if (ret)
                return ret;
 
-       if (of_find_property(dev->of_node, "#cooling-cells", NULL))
+       if (of_property_present(dev->of_node, "#cooling-cells"))
                return devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
                                            khadas_mcu_fan_cells,
                                            ARRAY_SIZE(khadas_mcu_fan_cells),

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index c304d20..a92301d 100644 (file)
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -1378,7 +1378,7 @@ int stmpe_probe(struct stmpe_client_info *ci, enum stmpe_partnum partnum)
 
        stmpe_of_probe(pdata, np);
 
-       if (of_find_property(np, "interrupts", NULL) == NULL)
+       if (!of_property_present(np, "interrupts"))
                ci->irq = -1;
 
        stmpe = devm_kzalloc(ci->dev, sizeof(struct stmpe), GFP_KERNEL);