From 9611ea32f2db0150cc9d7e69110cb48df05af238 Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Fri, 28 Jun 2019 00:35:26 +0300
Subject: [PATCH] media: i2c: ov490: add LI cameras

This adds Leopard Imaging firmware support

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
 drivers/media/i2c/soc_camera/ov490_ov10640.c |  3 +++
 drivers/media/i2c/soc_camera/ov490_ov10640.h | 10 +++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/soc_camera/ov490_ov10640.c b/drivers/media/i2c/soc_camera/ov490_ov10640.c
index 0ea9a54..0f1a0d4 100644
--- a/drivers/media/i2c/soc_camera/ov490_ov10640.c
+++ b/drivers/media/i2c/soc_camera/ov490_ov10640.c
@@ -138,6 +138,9 @@ static int ov490_set_regs(struct i2c_client *client,
 			usleep_range(100, 150); /* wait 100 us */
 			reg16_write(client, regs[i].reg, regs[i].val);
 		}
+
+		if (regs[i].reg == 0xFFFE)
+			usleep_range(100, 150); /* wait 100 us */
 	}
 
 	return 0;
diff --git a/drivers/media/i2c/soc_camera/ov490_ov10640.h b/drivers/media/i2c/soc_camera/ov490_ov10640.h
index b22e93e..b00dc3ade 100644
--- a/drivers/media/i2c/soc_camera/ov490_ov10640.h
+++ b/drivers/media/i2c/soc_camera/ov490_ov10640.h
@@ -17,6 +17,12 @@ 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},
@@ -93,10 +99,12 @@ static const struct ov490_reg ov490_regs_wizard[] = {
 {0xfffe, 0x80},
 {0x00c0, 0xdc},
 #ifdef OV490_DISPLAY_PATTERN
-{0xfffd, 0x80},
 {0xfffe, 0x19},
 {0x5000, 0x02},
 {0xfffe, 0x80},
 {0x00c0, 0xd6},
 #endif
+/* respin register 0x6010 due to added firmware start HOST command */
+{0xfffe, 0x29},
+{0x6010, 0x01},
 };
-- 
2.7.4