Extend the driver to also support [gs]_mbus_config() subdevice video
operations.
Signed-off-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
---
drivers/media/video/mt9v022.c | 76 ++++++++++++++++++++++++++++++++++++++++-
1 files changed, 75 insertions(+), 1 deletions(-)
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index 51b0fcc..2fc6ca2 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -14,9 +14,10 @@
#include <linux/delay.h>
#include <linux/log2.h>
+#include <media/soc_camera.h>
+#include <media/soc_mediabus.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-chip-ident.h>
-#include <media/soc_camera.h>
/*
* mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c
@@ -848,6 +849,77 @@ static int mt9v022_enum_fmt(struct v4l2_subdev *sd,
unsigned int index,
return 0;
}
+static int mt9v022_g_mbus_config(struct v4l2_subdev *sd,
+ struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
+
+ cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE |
+ V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
+ V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
+ V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
+ V4L2_MBUS_DATA_ACTIVE_HIGH;
+ cfg->type = V4L2_MBUS_PARALLEL;
+ cfg->flags = soc_camera_apply_board_flags(icl, cfg);
+
+ return 0;
+}
+
+static int mt9v022_s_mbus_config(struct v4l2_subdev *sd,
+ const struct v4l2_mbus_config *cfg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct mt9v022 *mt9v022 = to_mt9v022(client);
+ unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
+ unsigned int bps =
soc_mbus_get_fmtdesc(icd->current_fmt->code)->bits_per_sample;
+ int ret;
+ u16 pixclk = 0;
+
+ dev_info(icd->pdev, "set %d: %s, %dbps\n", icd->current_fmt->code,
+ icd->current_fmt->host_fmt->name, bps);
+
+ if (icl->set_bus_param) {
+ ret = icl->set_bus_param(icl, 1 << (bps - 1));
+ if (ret)
+ return ret;
+ } else if (bps != 10) {
+ /*
+ * Without board specific bus width settings we only support the
+ * sensors native bus width
+ */
+ return -EINVAL;
+ }
+
+ if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ pixclk |= 0x10;
+
+ if (!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH))
+ pixclk |= 0x1;
+
+ if (!(flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH))
+ pixclk |= 0x2;
+
+ ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
+ if (ret < 0)
+ return ret;
+
+ if (!(flags & V4L2_MBUS_MASTER))
+ mt9v022->chip_control &= ~0x8;
+
+ ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
+ pixclk, mt9v022->chip_control);
+
+ return 0;
+}
+
static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
.s_stream = mt9v022_s_stream,
.s_mbus_fmt = mt9v022_s_fmt,
@@ -857,6 +929,8 @@ static struct v4l2_subdev_video_ops
mt9v022_subdev_video_ops = {
.g_crop = mt9v022_g_crop,
.cropcap = mt9v022_cropcap,
.enum_mbus_fmt = mt9v022_enum_fmt,
+ .g_mbus_config = mt9v022_g_mbus_config,
+ .s_mbus_config = mt9v022_s_mbus_config,
};
static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {
--
1.7.2.5
--
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