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From 2e0f2e9bd61f8a76b2cb6b9022a4787c6e6768ff Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Wed, 31 Jul 2019 13:46:17 +0300
Subject: [PATCH] media: i2c: ov490_ov10640: add group switch
This adds possible to use group switch.
By default vendors use group#1 in firmware.
Some vendors start with different group#
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
drivers/media/i2c/soc_camera/ov490_ov10640.c | 21 +++++++++++++++++++++
drivers/media/i2c/soc_camera/ov490_ov10640.h | 9 ---------
2 files changed, 21 insertions(+), 9 deletions(-)
diff --git a/drivers/media/i2c/soc_camera/ov490_ov10640.c b/drivers/media/i2c/soc_camera/ov490_ov10640.c
index 0f1a0d4..49f373c 100644
--- a/drivers/media/i2c/soc_camera/ov490_ov10640.c
+++ b/drivers/media/i2c/soc_camera/ov490_ov10640.c
@@ -54,6 +54,7 @@ struct ov490_priv {
int blue;
int awb;
int dvp_order;
+ int group;
/* serializers */
int max9286_addr;
int max9271_addr;
@@ -77,6 +78,10 @@ static int max_height;
module_param(max_height, int, 0644);
MODULE_PARM_DESC(max_height, " Fixed sensor height");
+static int group = 0;
+module_param(group, int, 0644);
+MODULE_PARM_DESC(group, " group number (0 - does not apply)");
+
static inline struct ov490_priv *to_ov490(const struct i2c_client *client)
{
return container_of(i2c_get_clientdata(client), struct ov490_priv, sd);
@@ -858,6 +863,19 @@ static int ov490_initialize(struct i2c_client *client)
goto again;
}
+ if (priv->group) {
+ /* switch to group# */
+ reg16_write(client, 0xFFFD, 0x80);
+ reg16_write(client, 0xFFFE, 0x19);
+ usleep_range(100, 150); /* wait 100 us */
+ reg16_write(client, 0x5000, priv->group);
+ reg16_write(client, 0xFFFE, 0x80);
+ usleep_range(100, 150); /* wait 100 us */
+ reg16_write(client, 0xc0, 0x3f);
+
+ mdelay(30);
+ }
+
/* read resolution used by current firmware */
reg16_write(client, 0xFFFD, 0x80);
reg16_write(client, 0xFFFE, 0x82);
@@ -903,6 +921,7 @@ static int ov490_parse_dt(struct device_node *np, struct ov490_priv *priv)
break;
of_property_read_u32(endpoint, "dvp-order", &priv->dvp_order);
+ of_property_read_u32(endpoint, "group", &priv->group);
rendpoint = of_parse_phandle(endpoint, "remote-endpoint", 0);
if (!rendpoint)
@@ -978,6 +997,8 @@ static int ov490_parse_dt(struct device_node *np, struct ov490_priv *priv)
priv->max_height = max_height;
priv->is_fixed_sensor = true;
}
+ if (group)
+ priv->group = group;
return 0;
}
diff --git a/drivers/media/i2c/soc_camera/ov490_ov10640.h b/drivers/media/i2c/soc_camera/ov490_ov10640.h
index b00dc3ade..8ce8611 100644
--- a/drivers/media/i2c/soc_camera/ov490_ov10640.h
+++ b/drivers/media/i2c/soc_camera/ov490_ov10640.h
@@ -17,12 +17,6 @@ struct ov490_reg {
};
static const struct ov490_reg ov490_regs_wizard[] = {
-/* Firmware start (some firmwares need this to kick processing) */
-{0xfffd, 0x80},
-{0xfffe, 0x19},
-{0x5000, 0x05},
-{0xfffe, 0x80},
-{0x00c0, 0x3f},
/* The following registers should match firmware */
{0xfffd, 0x80},
{0xfffe, 0x82},
@@ -104,7 +98,4 @@ static const struct ov490_reg ov490_regs_wizard[] = {
{0xfffe, 0x80},
{0x00c0, 0xd6},
#endif
-/* respin register 0x6010 due to added firmware start HOST command */
-{0xfffe, 0x29},
-{0x6010, 0x01},
};
--
2.7.4
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