From 3d96f6a3e9cb89783d3e1de3d15f52c5618cf79c Mon Sep 17 00:00:00 2001
From: Sebastiano Barezzi <barezzisebastiano@gmail.com>
Date: Sun, 20 Nov 2022 02:12:43 +0100
Subject: [PATCH] drivers: video: backlight: {dual}ktz8866: Make functions
 static

Change-Id: I9cd148e2371440b3513b3c787983947ffdbb0695
---
 drivers/video/backlight/dualktz8866.c     | 26 +++++++++++------------
 drivers/video/backlight/ktz8866.c         |  6 +++---
 include/linux/platform_data/dualktz8866.h |  2 +-
 include/linux/platform_data/ktz8866.h     |  2 +-
 4 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/video/backlight/dualktz8866.c b/drivers/video/backlight/dualktz8866.c
index 3d1d6849efa3..e5039d947627 100644
--- a/drivers/video/backlight/dualktz8866.c
+++ b/drivers/video/backlight/dualktz8866.c
@@ -38,23 +38,23 @@ struct ktz8866 {
 	struct ktz8866_platform_data *pdata;
 };
 
-struct ktz8866 *bd;
-struct ktz8866_status ktz8866_status;
-struct pwm_to_51 pwm_map[6] = {
+static struct ktz8866 *bd;
+static struct ktz8866_status ktz8866_status;
+static struct pwm_to_51 pwm_map[6] = {
 	{ 10, 0x199 }, { 20, 0x333 }, { 40, 0x666 },
 	{ 60, 0x999 }, { 80, 0xccc }, { 100, 0xFFF },
 };
 
-struct ktz8866 *bd_a;
-struct ktz8866 *bd_b;
-char gresult[30];
-int caseid = 0;
+static struct ktz8866 *bd_a;
+static struct ktz8866 *bd_b;
+static char gresult[30];
+static int caseid = 0;
 
 static struct ktz8866_led g_ktz8866_led;
 
 extern int mi_mipi_dsi_dcs_set_pwm_value(u16 dbv_value);
 
-int ktz8866_read(u8 reg, u8 *data)
+static int ktz8866_read(u8 reg, u8 *data)
 {
 	int ret;
 
@@ -69,12 +69,12 @@ int ktz8866_read(u8 reg, u8 *data)
 	return 0;
 }
 
-int ktz8866_write(u8 reg, u8 data)
+static int ktz8866_write(u8 reg, u8 data)
 {
 	return i2c_smbus_write_byte_data(bd->client, reg, data);
 }
 
-int ktz8866_reads(struct ktz8866 *bd, u8 reg, u8 *data)
+static int ktz8866_reads(struct ktz8866 *bd, u8 reg, u8 *data)
 {
 	int ret;
 
@@ -89,7 +89,7 @@ int ktz8866_reads(struct ktz8866 *bd, u8 reg, u8 *data)
 	return 0;
 }
 
-int ktz8866_writes(struct ktz8866 *bd, u8 reg, u8 data)
+static int ktz8866_writes(struct ktz8866 *bd, u8 reg, u8 data)
 {
 	return i2c_smbus_write_byte_data(bd->client, reg, data);
 }
@@ -184,8 +184,8 @@ static ssize_t bl_selftest_read(struct file *file, char __user *buf,
 	return cnt;
 }
 
-ssize_t bl_selftest_write(struct file *file, const char __user *buf,
-			  size_t count, loff_t *pos)
+static ssize_t bl_selftest_write(struct file *file, const char __user *buf,
+				 size_t count, loff_t *pos)
 {
 	char tmp[6] = { 0 };
 	int pwm_value = 0;
diff --git a/drivers/video/backlight/ktz8866.c b/drivers/video/backlight/ktz8866.c
index 5d9f567eb639..f03705b971a6 100644
--- a/drivers/video/backlight/ktz8866.c
+++ b/drivers/video/backlight/ktz8866.c
@@ -30,11 +30,11 @@ struct ktz8866 {
 	struct ktz8866_platform_data *pdata;
 };
 
-struct ktz8866 *bd;
+static struct ktz8866 *bd;
 
 static struct ktz8866_led g_ktz8866_led;
 
-int ktz8866_read(u8 reg, u8 *data)
+static int ktz8866_read(u8 reg, u8 *data)
 {
 	int ret;
 
@@ -49,7 +49,7 @@ int ktz8866_read(u8 reg, u8 *data)
 	return 0;
 }
 
-int ktz8866_write(u8 reg, u8 data)
+static int ktz8866_write(u8 reg, u8 data)
 {
 	return i2c_smbus_write_byte_data(bd->client, reg, data);
 }
diff --git a/include/linux/platform_data/dualktz8866.h b/include/linux/platform_data/dualktz8866.h
index 7ca50f8c8bf9..960b961c6bdb 100644
--- a/include/linux/platform_data/dualktz8866.h
+++ b/include/linux/platform_data/dualktz8866.h
@@ -90,7 +90,7 @@ static struct ktz8866_reg ktz8866_regs_conf[] = {
 	{ KTZ8866_DISP_BL_ENABLE, 0x4f },/* KTZ8866_DISP_BL_ENABLE BL_EN*/
 };
 
-const int bl_level_remap[BL_LEVEL_MAX+1] = {
+static const int bl_level_remap[BL_LEVEL_MAX+1] = {
 0,17,17,31,40,54,107,132,163,186,
 213,222,241,260,279,300,321,330,349,365,
 379,395,408,419,430,440,449,458,466,485,
diff --git a/include/linux/platform_data/ktz8866.h b/include/linux/platform_data/ktz8866.h
index 0df391254748..3daba434fe5b 100644
--- a/include/linux/platform_data/ktz8866.h
+++ b/include/linux/platform_data/ktz8866.h
@@ -77,7 +77,7 @@ static struct ktz8866_reg ktz8866_regs_conf[] = {
 	{ KTZ8866_DISP_BL_ENABLE, 0x5f },/* KTZ8866_DISP_BL_ENABLE BL_EN*/
 };
 
-const int bl_level_remap[BL_LEVEL_MAX+1] = {
+static const int bl_level_remap[BL_LEVEL_MAX+1] = {
 0,17,17,31,40,54,107,132,163,186,
 213,222,241,260,279,300,321,330,349,365,
 379,395,408,419,430,440,449,458,466,485,