[PATCH 1/3] mt9p031: Identify color/mono models using I2C device name

[Laurent Pinchart]

Instead of passing a color/monochrome flag through platform data, rely
on the I2C device name to identify the chip model.

Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
 drivers/media/video/mt9p031.c |   14 +++++++++++---
 include/media/mt9p031.h       |    6 ------
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/media/video/mt9p031.c b/drivers/media/video/mt9p031.c
index c81eaf4..5b8a396 100644
--- a/drivers/media/video/mt9p031.c
+++ b/drivers/media/video/mt9p031.c
@@ -99,6 +99,11 @@
 #define MT9P031_TEST_PATTERN_RED                       0xa2
 #define MT9P031_TEST_PATTERN_BLUE                      0xa3
 
+enum mt9p031_model {
+       MT9P031_MODEL_COLOR,
+       MT9P031_MODEL_MONOCHROME,
+};
+
 struct mt9p031 {
        struct v4l2_subdev subdev;
        struct media_pad pad;
@@ -109,6 +114,7 @@ struct mt9p031 {
        struct mutex power_lock; /* lock to protect power_count */
        int power_count;
 
+       enum mt9p031_model model;
        struct aptina_pll pll;
 
        /* Registers cache */
@@ -764,7 +770,7 @@ static int mt9p031_open(struct v4l2_subdev *subdev, struct 
v4l2_subdev_fh *fh)
 
        format = v4l2_subdev_get_try_format(fh, 0);
 
-       if (mt9p031->pdata->version == MT9P031_MONOCHROME_VERSION)
+       if (mt9p031->model == MT9P031_MODEL_MONOCHROME)
                format->code = V4L2_MBUS_FMT_Y12_1X12;
        else
                format->code = V4L2_MBUS_FMT_SGRBG12_1X12;
@@ -842,6 +848,7 @@ static int mt9p031_probe(struct i2c_client *client,
        mt9p031->pdata = pdata;
        mt9p031->output_control = MT9P031_OUTPUT_CONTROL_DEF;
        mt9p031->mode2 = MT9P031_READ_MODE_2_ROW_BLC;
+       mt9p031->model = did->driver_data;
 
        v4l2_ctrl_handler_init(&mt9p031->ctrls, ARRAY_SIZE(mt9p031_ctrls) + 4);
 
@@ -882,7 +889,7 @@ static int mt9p031_probe(struct i2c_client *client,
        mt9p031->crop.left = MT9P031_COLUMN_START_DEF;
        mt9p031->crop.top = MT9P031_ROW_START_DEF;
 
-       if (mt9p031->pdata->version == MT9P031_MONOCHROME_VERSION)
+       if (mt9p031->model == MT9P031_MODEL_MONOCHROME)
                mt9p031->format.code = V4L2_MBUS_FMT_Y12_1X12;
        else
                mt9p031->format.code = V4L2_MBUS_FMT_SGRBG12_1X12;
@@ -918,7 +925,8 @@ static int mt9p031_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id mt9p031_id[] = {
-       { "mt9p031", 0 },
+       { "mt9p031", MT9P031_MODEL_COLOR },
+       { "mt9p031m", MT9P031_MODEL_MONOCHROME },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, mt9p031_id);
diff --git a/include/media/mt9p031.h b/include/media/mt9p031.h
index 96448c7..5b5090f 100644
--- a/include/media/mt9p031.h
+++ b/include/media/mt9p031.h
@@ -3,17 +3,11 @@
 
 struct v4l2_subdev;
 
-enum {
-       MT9P031_COLOR_VERSION,
-       MT9P031_MONOCHROME_VERSION,
-};
-
 struct mt9p031_platform_data {
        int (*set_xclk)(struct v4l2_subdev *subdev, int hz);
        int (*reset)(struct v4l2_subdev *subdev, int active);
        int ext_freq; /* input frequency to the mt9p031 for PLL dividers */
        int target_freq; /* frequency target for the PLL */
-       int version; /* MT9P031_COLOR_VERSION or MT9P031_MONOCHROME_VERSION */
 };
 
 #endif
-- 
1.7.3.4

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