linux-kernel - [PATCH 2/3] gpio: syscon: use generic device properties

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240930103157.49259-2-brgl@bgdev.pl>
Date: Mon, 30 Sep 2024 12:31:56 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-pwm@...r.kernel.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 2/3] gpio: syscon: use generic device properties

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

OF-specific routines should not be used unless necessary. Generic device
properties are preferred so switch to using them in the driver code.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/gpio/gpio-syscon.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 638095d5f459..06c07085feb8 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c
@@ -9,7 +9,6 @@
 #include <linux/gpio/driver.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
-#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 
@@ -208,12 +207,13 @@ static int syscon_gpio_probe(struct platform_device *pdev)
 	struct device_node *np = dev->of_node;
 	int ret;
 	bool use_parent_regmap = false;
+	unsigned int props[] = { 0, 0 };
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
-	priv->data = of_device_get_match_data(dev);
+	priv->data = device_get_match_data(dev);
 
 	priv->syscon = syscon_regmap_lookup_by_phandle(np, "gpio,syscon-dev");
 	if (IS_ERR(priv->syscon) && np->parent) {
@@ -224,19 +224,15 @@ static int syscon_gpio_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->syscon);
 
 	if (!use_parent_regmap) {
-		ret = of_property_read_u32_index(np, "gpio,syscon-dev", 1,
-						 &priv->dreg_offset);
-		if (ret)
+		ret = device_property_read_u32_array(dev, "gpio,syscon-dev",
+						     props, 2);
+		if (ret < 0)
 			dev_err(dev, "can't read the data register offset!\n");
-
-		priv->dreg_offset <<= 3;
-
-		ret = of_property_read_u32_index(np, "gpio,syscon-dev", 2,
-						 &priv->dir_reg_offset);
-		if (ret)
+		if (ret != 2)
 			dev_dbg(dev, "can't read the dir register offset!\n");
 
-		priv->dir_reg_offset <<= 3;
+		priv->dreg_offset = props[0] << 3;
+		priv->dir_reg_offset = props[1] << 3;
 	}
 
 	priv->chip.parent = dev;
-- 
2.43.0