linux-kernel - [PATCH] backlight: hx8357: Use of_property_present() for testing DT property presence

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Message-Id: <20230310144730.1546101-1-robh@kernel.org>
Date:   Fri, 10 Mar 2023 08:47:30 -0600
From:   Rob Herring <robh@...nel.org>
To:     Lee Jones <lee@...nel.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>, Helge Deller <deller@....de>
Cc:     devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] backlight: hx8357: 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@...nel.org>
---
 drivers/video/backlight/hx8357.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/hx8357.c b/drivers/video/backlight/hx8357.c
index 9b50bc96e00f..f76d2469d490 100644
--- a/drivers/video/backlight/hx8357.c
+++ b/drivers/video/backlight/hx8357.c
@@ -617,7 +617,7 @@ static int hx8357_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	if (of_find_property(spi->dev.of_node, "im-gpios", NULL)) {
+	if (of_property_present(spi->dev.of_node, "im-gpios")) {
 		lcd->use_im_pins = 1;
 
 		for (i = 0; i < HX8357_NUM_IM_PINS; i++) {
-- 
2.39.2