diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 34687ab23d77..d82f250355ed 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -50,6 +50,7 @@
 #define OV5640_REG_SYS_CTRL0		0x3008
 #define OV5640_REG_SYS_CTRL0_SW_PWDN	0x42
 #define OV5640_REG_SYS_CTRL0_SW_PWUP	0x02
+#define OV5640_REG_SYS_CTRL0_SW_RST	0x82
 #define OV5640_REG_CHIP_ID		0x300a
 #define OV5640_REG_IO_MIPI_CTRL00	0x300e
 #define OV5640_REG_PAD_OUTPUT_ENABLE01	0x3017
@@ -543,7 +544,7 @@ static const struct v4l2_mbus_framefmt ov5640_dvp_default_fmt = {
 };
 
 static const struct reg_value ov5640_init_setting[] = {
-	{0x3103, 0x11, 0, 0}, {0x3008, 0x82, 0, 5}, {0x3008, 0x42, 0, 0},
+	{0x3103, 0x11, 0, 0},
 	{0x3103, 0x03, 0, 0}, {0x3630, 0x36, 0, 0},
 	{0x3631, 0x0e, 0, 0}, {0x3632, 0xe2, 0, 0}, {0x3633, 0x12, 0, 0},
 	{0x3621, 0xe0, 0, 0}, {0x3704, 0xa0, 0, 0}, {0x3703, 0x5a, 0, 0},
@@ -2440,19 +2441,32 @@ static void ov5640_reset(struct ov5640_dev *sensor)
 	if (!sensor->reset_gpio)
 		return;
 
-	gpiod_set_value_cansleep(sensor->reset_gpio, 0);
+	if (sensor->pwdn_gpio) {
+		gpiod_set_value_cansleep(sensor->reset_gpio, 0);
 
-	/* camera power cycle */
-	ov5640_power(sensor, false);
-	usleep_range(5000, 10000);
-	ov5640_power(sensor, true);
-	usleep_range(5000, 10000);
+		/* camera power cycle */
+		ov5640_power(sensor, false);
+		usleep_range(5000, 10000);
+		ov5640_power(sensor, true);
+		usleep_range(5000, 10000);
 
-	gpiod_set_value_cansleep(sensor->reset_gpio, 1);
-	usleep_range(1000, 2000);
+		gpiod_set_value_cansleep(sensor->reset_gpio, 1);
+		usleep_range(1000, 2000);
 
-	gpiod_set_value_cansleep(sensor->reset_gpio, 0);
+		gpiod_set_value_cansleep(sensor->reset_gpio, 0);
+	} else {
+		/* software reset */
+		ov5640_write_reg(sensor, OV5640_REG_SYS_CTRL0,
+				 OV5640_REG_SYS_CTRL0_SW_RST);
+	}
 	usleep_range(20000, 25000);
+
+	/*
+	 * software standby: allows registers programming;
+	 * exit at restore_mode() for CSI, s_stream(1) for DVP
+	 */
+	ov5640_write_reg(sensor, OV5640_REG_SYS_CTRL0,
+			 OV5640_REG_SYS_CTRL0_SW_PWDN);
 }
 
 static int ov5640_set_power_on(struct ov5640_dev *sensor)