clear-pkgs-linux-iot-lts2018/0971-media-intel-ipu4-restore-back-ox03a-init-sequence.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Meng Wei <wei.meng@intel.com>
Date: Mon, 14 Jan 2019 10:29:40 +0800
Subject: [PATCH] media: intel-ipu4: restore back ox03a init sequence

without ox03a init sequence, then sensor gone with power on/off.

Change-Id: Ia409b9ac60841c94ef3863a6072744154852bd6e
Tracked-On: PKT-1691
Signed-off-by: Chen Meng J <meng.j.chen@intel.com>
Signed-off-by: Meng Wei <wei.meng@intel.com>
---
 drivers/media/i2c/ti960.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/ti960.c b/drivers/media/i2c/ti960.c
index 7ea1d578d1df..96954104da2a 100644
--- a/drivers/media/i2c/ti960.c
+++ b/drivers/media/i2c/ti960.c
@@ -1239,6 +1239,7 @@ static int ti960_init(struct ti960 *va)
 	unsigned int val;
 	int m;
 	int rx_port = 0;
+	int ser_alias = 0;
 
 	gpio_set_value(reset_gpio, 1);
 	usleep_range(2000, 3000);
@@ -1268,6 +1269,7 @@ static int ti960_init(struct ti960 *va)
 	 * fixed value of sensor phy, ser_alias, port config for ti960 each port,
 	 * not yet known sensor platform data here.
 	 */
+	ser_alias = 0x58;
 	for (i = 0; i < ARRAY_SIZE(ti960_init_settings); i++) {
 		rval = regmap_write(va->regmap8,
 			ti960_init_settings[i].reg,
@@ -1280,6 +1282,17 @@ static int ti960_init(struct ti960 *va)
 		}
 	}
 
+	/* wait for ti953 ready */
+	msleep(200);
+	for (i = 0; i < ARRAY_SIZE(ti953_init_settings); i++) {
+		rval = ti953_reg_write(va, rx_port, ser_alias,
+			ti953_init_settings[i].reg,
+			ti953_init_settings[i].val);
+		if (rval) {
+			dev_err(va->sd.dev, "port %d, ti953 write timeout %d\n", 0, rval);
+			break;
+		}
+	}
 
 	for (m = 0; m < ARRAY_SIZE(ti960_init_settings_2); m++) {
 		rval = regmap_write(va->regmap8,
@@ -1309,8 +1322,20 @@ static int ti960_init(struct ti960 *va)
 		}
 	}
 
-	/* wait for Ser ti953 ready */
-	msleep(200);
+	for (i = 0; i < ARRAY_SIZE(ti953_init_settings_2); i++) {
+		rval = ti953_reg_write(va, rx_port, ser_alias,
+			ti953_init_settings_2[i].reg,
+			ti953_init_settings_2[i].val);
+		if (rval) {
+			dev_err(va->sd.dev, "port %d, ti953 write timeout %d\n", 0, rval);
+			break;
+		}
+	}
+
+	/* reset and power for ti953 */
+	ti953_reg_write(va, 0, ser_alias, 0x0d, 00);
+	msleep(50);
+	ti953_reg_write(va, 0, ser_alias, 0x0d, 0x3);
 
 	rval = ti960_map_subdevs_addr(va);
 	if (rval)
-- 
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