linux-kernel - [PATCH] Input: Use of_property_read

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Date:   Fri, 10 Mar 2023 08:47:08 -0600
From:   Rob Herring <robh@...nel.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     devicetree@...r.kernel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: [PATCH] Input: Use of_property_read_bool() for boolean properties

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.
Convert reading boolean properties to to of_property_read_bool().

Signed-off-by: Rob Herring <robh@...nel.org>
---
 drivers/input/keyboard/matrix_keypad.c  | 6 ++----
 drivers/input/keyboard/omap4-keypad.c   | 3 +--
 drivers/input/keyboard/samsung-keypad.c | 3 +--
 drivers/input/keyboard/tegra-kbc.c      | 3 +--
 4 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index 203310727d88..a1b037891af2 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -425,14 +425,12 @@ matrix_keypad_parse_dt(struct device *dev)
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (of_get_property(np, "linux,no-autorepeat", NULL))
-		pdata->no_autorepeat = true;
+	pdata->no_autorepeat = of_property_read_bool(np, "linux,no-autorepeat");
 
 	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||
 			of_property_read_bool(np, "linux,wakeup"); /* legacy */
 
-	if (of_get_property(np, "gpio-activelow", NULL))
-		pdata->active_low = true;
+	pdata->active_low = of_property_read_bool(np, "gpio-activelow");
 
 	pdata->drive_inactive_cols =
 		of_property_read_bool(np, "drive-inactive-cols");
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index 4426120398b0..9f085d5679db 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -274,8 +274,7 @@ static int omap4_keypad_parse_dt(struct device *dev,
 	if (err)
 		return err;
 
-	if (of_get_property(np, "linux,input-no-autorepeat", NULL))
-		keypad_data->no_autorepeat = true;
+	keypad_data->no_autorepeat = of_property_read_bool(np, "linux,input-no-autorepeat");
 
 	return 0;
 }
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index 09e883ea1352..d85dd2489293 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -291,8 +291,7 @@ samsung_keypad_parse_dt(struct device *dev)
 		*keymap++ = KEY(row, col, key_code);
 	}
 
-	if (of_get_property(np, "linux,input-no-autorepeat", NULL))
-		pdata->no_autorepeat = true;
+	pdata->no_autorepeat = of_property_read_bool(np, "linux,input-no-autorepeat");
 
 	pdata->wakeup = of_property_read_bool(np, "wakeup-source") ||
 			/* legacy name */
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index da4019cf0c83..d5a6c7d8eb25 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -504,8 +504,7 @@ static int tegra_kbc_parse_dt(struct tegra_kbc *kbc)
 	if (!of_property_read_u32(np, "nvidia,repeat-delay-ms", &prop))
 		kbc->repeat_cnt = prop;
 
-	if (of_find_property(np, "nvidia,needs-ghost-filter", NULL))
-		kbc->use_ghost_filter = true;
+	kbc->use_ghost_filter = of_property_present(np, "nvidia,needs-ghost-filter");
 
 	if (of_property_read_bool(np, "wakeup-source") ||
 	    of_property_read_bool(np, "nvidia,wakeup-source")) /* legacy */
-- 
2.39.2