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From 3fea12b6dfa46dc30dc2cdbd1f27dc3f5a07d003 Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Wed, 14 Aug 2019 15:06:18 +0300
Subject: [PATCH 2/3] media: i2c: soc_camera: differenciate max9286 and max9288

The max9288 needs to be differenciated from max9286, because
it does not have the link control block

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
 drivers/media/i2c/soc_camera/ap0101_ar014x.c | 8 ++++++--
 drivers/media/i2c/soc_camera/ar0132.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/ar0140.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/ar0143.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/ar0147.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/ar0231.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/gw4200_ar014x.c | 8 ++++++--
 drivers/media/i2c/soc_camera/gw5200_imx390.c | 8 ++++++--
 drivers/media/i2c/soc_camera/isx016.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/isx019.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/ov10635.c       | 8 ++++++--
 drivers/media/i2c/soc_camera/ov10640.c       | 8 ++++++--
 drivers/media/i2c/soc_camera/ov2311.c        | 8 ++++++--
 drivers/media/i2c/soc_camera/ov490_ov10640.c | 8 ++++++--
 14 files changed, 84 insertions(+), 28 deletions(-)

diff --git a/drivers/media/i2c/soc_camera/ap0101_ar014x.c b/drivers/media/i2c/soc_camera/ap0101_ar014x.c
index 74e6e51..c35e5a0 100644
--- a/drivers/media/i2c/soc_camera/ap0101_ar014x.c
+++ b/drivers/media/i2c/soc_camera/ap0101_ar014x.c
@@ -65,12 +65,16 @@ static void ap0101_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ap0101_priv *priv = to_ap0101(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ar0132.c b/drivers/media/i2c/soc_camera/ar0132.c
index 18bc5dc..e4926e8 100644
--- a/drivers/media/i2c/soc_camera/ar0132.c
+++ b/drivers/media/i2c/soc_camera/ar0132.c
@@ -61,12 +61,16 @@ static void ar0132_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ar0132_priv *priv = to_ar0132(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ar0140.c b/drivers/media/i2c/soc_camera/ar0140.c
index c52ca4e..b156fc5 100644
--- a/drivers/media/i2c/soc_camera/ar0140.c
+++ b/drivers/media/i2c/soc_camera/ar0140.c
@@ -58,12 +58,16 @@ static void ar0140_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ar0140_priv *priv = to_ar0140(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);/* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ar0143.c b/drivers/media/i2c/soc_camera/ar0143.c
index b61c7eb..0c4b970 100644
--- a/drivers/media/i2c/soc_camera/ar0143.c
+++ b/drivers/media/i2c/soc_camera/ar0143.c
@@ -64,12 +64,16 @@ static void ar0143_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ar0143_priv *priv = to_ar0143(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ar0147.c b/drivers/media/i2c/soc_camera/ar0147.c
index 08fd136..fc2a09e 100644
--- a/drivers/media/i2c/soc_camera/ar0147.c
+++ b/drivers/media/i2c/soc_camera/ar0147.c
@@ -81,12 +81,16 @@ static void ar0147_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ar0147_priv *priv = to_ar0147(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ar0231.c b/drivers/media/i2c/soc_camera/ar0231.c
index 36b5657..c51ae9ad 100644
--- a/drivers/media/i2c/soc_camera/ar0231.c
+++ b/drivers/media/i2c/soc_camera/ar0231.c
@@ -61,12 +61,16 @@ static void ar0231_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ar0231_priv *priv = to_ar0231(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/gw4200_ar014x.c b/drivers/media/i2c/soc_camera/gw4200_ar014x.c
index 45123ae..71c34f9 100644
--- a/drivers/media/i2c/soc_camera/gw4200_ar014x.c
+++ b/drivers/media/i2c/soc_camera/gw4200_ar014x.c
@@ -58,12 +58,16 @@ static void gw4200_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct gw4200_priv *priv = to_gw4200(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/gw5200_imx390.c b/drivers/media/i2c/soc_camera/gw5200_imx390.c
index 98352a9..e750a85 100644
--- a/drivers/media/i2c/soc_camera/gw5200_imx390.c
+++ b/drivers/media/i2c/soc_camera/gw5200_imx390.c
@@ -65,12 +65,16 @@ static void gw5200_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct gw5200_priv *priv = to_gw5200(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/isx016.c b/drivers/media/i2c/soc_camera/isx016.c
index ab85b7d..9465c8f 100644
--- a/drivers/media/i2c/soc_camera/isx016.c
+++ b/drivers/media/i2c/soc_camera/isx016.c
@@ -62,12 +62,16 @@ static void isx016_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct isx016_priv *priv = to_isx016(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/isx019.c b/drivers/media/i2c/soc_camera/isx019.c
index 188fd28..d75d8f3 100644
--- a/drivers/media/i2c/soc_camera/isx019.c
+++ b/drivers/media/i2c/soc_camera/isx019.c
@@ -64,12 +64,16 @@ static void isx019_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct isx019_priv *priv = to_isx019(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ov10635.c b/drivers/media/i2c/soc_camera/ov10635.c
index 1bbde91..14bb339 100644
--- a/drivers/media/i2c/soc_camera/ov10635.c
+++ b/drivers/media/i2c/soc_camera/ov10635.c
@@ -69,12 +69,16 @@ static void ov10635_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ov10635_priv *priv = to_ov10635(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);		/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);					/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ov10640.c b/drivers/media/i2c/soc_camera/ov10640.c
index 4ce6e15..89dac1b 100644
--- a/drivers/media/i2c/soc_camera/ov10640.c
+++ b/drivers/media/i2c/soc_camera/ov10640.c
@@ -65,12 +65,16 @@ static void ov10640_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ov10640_priv *priv = to_ov10640(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ov2311.c b/drivers/media/i2c/soc_camera/ov2311.c
index c8d260c..f04f271 100644
--- a/drivers/media/i2c/soc_camera/ov2311.c
+++ b/drivers/media/i2c/soc_camera/ov2311.c
@@ -66,12 +66,16 @@ static void ov2311_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ov2311_priv *priv = to_ov2311(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;				/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0);	/* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);					/* wait 5ms */
+		reg8_read(client, 0x1e, &val);					/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);				/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
diff --git a/drivers/media/i2c/soc_camera/ov490_ov10640.c b/drivers/media/i2c/soc_camera/ov490_ov10640.c
index c492792..b85f871 100644
--- a/drivers/media/i2c/soc_camera/ov490_ov10640.c
+++ b/drivers/media/i2c/soc_camera/ov490_ov10640.c
@@ -91,12 +91,16 @@ static void ov490_s_port(struct i2c_client *client, int fwd_en)
 {
 	struct ov490_priv *priv = to_ov490(client);
 	int tmp_addr;
+	u8 val = 0;
 
 	if (priv->max9286_addr) {
 		tmp_addr = client->addr;
 		client->addr = priv->max9286_addr;	/* Deserializer I2C address */
-		reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
-		usleep_range(5000, 5500);		/* wait 5ms */
+		reg8_read(client, 0x1e, &val);		/* read max928X ID */
+		if (val == MAX9286_ID) {
+			reg8_write(client, 0x0a, fwd_en ? 0x11 << priv->port : 0); /* Enable/disable reverse/forward control for this port */
+			usleep_range(5000, 5500);	/* wait 5ms */
+		}
 		client->addr = tmp_addr;
 	};
 }
-- 
2.7.4