From 4039b03720f70aacfd351ecacdd085c3d9fc6ded Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Fri, 4 Sep 2020 22:18:34 +0200 Subject: [PATCH] media: i2c: ov5640: Add support for BT656 mode Enable support for BT656 mode. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Jacopo Mondi Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/ov5640.c | 46 ++++++++++++++++++++++++++++---------- 1 file changed, 34 insertions(+), 12 deletions(-) diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 19284ae26f06..16f830bdf715 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -84,6 +84,7 @@ #define OV5640_REG_VFIFO_HSIZE 0x4602 #define OV5640_REG_VFIFO_VSIZE 0x4604 #define OV5640_REG_JPG_MODE_SELECT 0x4713 +#define OV5640_REG_CCIR656_CTRL00 0x4730 #define OV5640_REG_POLARITY_CTRL00 0x4740 #define OV5640_REG_MIPI_CTRL00 0x4800 #define OV5640_REG_DEBUG_MODE 0x4814 @@ -1215,6 +1216,20 @@ static int ov5640_set_autogain(struct ov5640_dev *sensor, bool on) BIT(1), on ? 0 : BIT(1)); } +static int ov5640_set_stream_bt656(struct ov5640_dev *sensor, bool on) +{ + int ret; + + ret = ov5640_write_reg(sensor, OV5640_REG_CCIR656_CTRL00, + on ? 0x1 : 0x00); + if (ret) + return ret; + + return ov5640_write_reg(sensor, OV5640_REG_SYS_CTRL0, on ? + OV5640_REG_SYS_CTRL0_SW_PWUP : + OV5640_REG_SYS_CTRL0_SW_PWDN); +} + static int ov5640_set_stream_dvp(struct ov5640_dev *sensor, bool on) { return ov5640_write_reg(sensor, OV5640_REG_SYS_CTRL0, on ? @@ -2020,18 +2035,21 @@ static int ov5640_set_power_dvp(struct ov5640_dev *sensor, bool on) * datasheet and hardware, 0 is active high * and 1 is active low...) */ - if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) - pclk_pol = 1; - if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) - hsync_pol = 1; - if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) - vsync_pol = 1; + if (sensor->ep.bus_type == V4L2_MBUS_PARALLEL) { + if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) + pclk_pol = 1; + if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) + hsync_pol = 1; + if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) + vsync_pol = 1; + + ret = ov5640_write_reg(sensor, OV5640_REG_POLARITY_CTRL00, + (pclk_pol << 5) | (hsync_pol << 1) | + vsync_pol); - ret = ov5640_write_reg(sensor, OV5640_REG_POLARITY_CTRL00, - (pclk_pol << 5) | (hsync_pol << 1) | vsync_pol); - - if (ret) - return ret; + if (ret) + return ret; + } /* * powerdown MIPI TX/RX PHY & disable MIPI @@ -2055,7 +2073,9 @@ static int ov5640_set_power_dvp(struct ov5640_dev *sensor, bool on) * - 4: PCLK output enable * - [3:0]: D[9:6] output enable */ - ret = ov5640_write_reg(sensor, OV5640_REG_PAD_OUTPUT_ENABLE01, 0x7f); + ret = ov5640_write_reg(sensor, OV5640_REG_PAD_OUTPUT_ENABLE01, + sensor->ep.bus_type == V4L2_MBUS_PARALLEL ? + 0x7f : 0x1f); if (ret) return ret; @@ -2905,6 +2925,8 @@ static int ov5640_s_stream(struct v4l2_subdev *sd, int enable) if (sensor->ep.bus_type == V4L2_MBUS_CSI2_DPHY) ret = ov5640_set_stream_mipi(sensor, enable); + else if (sensor->ep.bus_type == V4L2_MBUS_BT656) + ret = ov5640_set_stream_bt656(sensor, enable); else ret = ov5640_set_stream_dvp(sensor, enable); -- 2.20.1