linux-kernel - [PATCH v3 1/6] media: ov5693: count num_supplies using array

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Message-Id: <20220629152933.422990-2-tommaso.merciai@amarulasolutions.com>
Date:   Wed, 29 Jun 2022 17:29:28 +0200
From:   Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
To:     tommaso.merciai@...rulasolutions.com
Cc:     linuxfancy@...glegroups.com, linux-amarula@...rulasolutions.com,
        quentin.schulz@...obroma-systems.com,
        Daniel Scally <djrscally@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/6] media: ov5693: count num_supplies using array_size

Instead of hardcode OV5693_NUM_SUPPLIES in a define is better use
ARRAY_SIZE function to count the number of supplies from
ov5693_supply_names array

Signed-off-by: Tommaso Merciai <tommaso.merciai@...rulasolutions.com>
---
 drivers/media/i2c/ov5693.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/media/i2c/ov5693.c b/drivers/media/i2c/ov5693.c
index 117ff5403312..f410333c4c67 100644
--- a/drivers/media/i2c/ov5693.c
+++ b/drivers/media/i2c/ov5693.c
@@ -127,11 +127,15 @@
 #define OV5693_LINK_FREQ_419_2MHZ		419200000
 #define OV5693_PIXEL_RATE			167680000
 
-/* Miscellaneous */
-#define OV5693_NUM_SUPPLIES			2
-
 #define to_ov5693_sensor(x) container_of(x, struct ov5693_device, sd)
 
+static const char * const ov5693_supply_names[] = {
+	"avdd",		/* Analog power */
+	"dovdd",	/* Digital I/O power */
+};
+
+#define OV5693_NUM_SUPPLIES	ARRAY_SIZE(ov5693_supply_names)
+
 struct ov5693_reg {
 	u32 reg;
 	u8 val;
@@ -352,11 +356,6 @@ static const s64 link_freq_menu_items[] = {
 	OV5693_LINK_FREQ_419_2MHZ
 };
 
-static const char * const ov5693_supply_names[] = {
-	"avdd",
-	"dovdd",
-};
-
 static const char * const ov5693_test_pattern_menu[] = {
 	"Disabled",
 	"Random Data",
-- 
2.25.1