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V4L/DVB (13652): tw9910: Add revision control 

Also fix a badly chosen macro name.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Kuninori Morimoto 2009-12-11 11:34:50 -03:00 committed by Mauro Carvalho Chehab
parent 35b23b5226
commit 6d74e5f361
1 changed files with 11 additions and 5 deletions
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16
drivers/media/video/tw9910.c
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@ -29,7 +29,7 @@
#include <media/tw9910.h>
#define GET_ID(val) ((val & 0xF8) >> 3)
#define GET_ReV(val) (val & 0x07)
#define GET_REV(val) (val & 0x07)
/*
* register offset
@ -225,6 +225,7 @@ struct tw9910_priv {
struct v4l2_subdev subdev;
struct tw9910_video_info *info;
const struct tw9910_scale_ctrl *scale;
u32 revision;
};
/*
@ -575,8 +576,11 @@ static int tw9910_enum_input(struct soc_camera_device *icd,
static int tw9910_g_chip_ident(struct v4l2_subdev *sd,
struct v4l2_dbg_chip_ident *id)
{
struct i2c_client *client = sd->priv;
struct tw9910_priv *priv = to_tw9910(client);
id->ident = V4L2_IDENT_TW9910;
id->revision = 0;
id->revision = priv->revision;
return 0;
}
@ -886,16 +890,18 @@ static int tw9910_video_probe(struct soc_camera_device *icd,
* So far only revisions 0 and 1 have been seen
*/
val = i2c_smbus_read_byte_data(client, ID);
priv->revision = GET_REV(val);
if (0x0B != GET_ID(val) ||
0x01 < GET_ReV(val)) {
0x01 < priv->revision) {
dev_err(&client->dev,
"Product ID error %x:%x\n", GET_ID(val), GET_ReV(val));
"Product ID error %x:%x\n",
GET_ID(val), priv->revision);
return -ENODEV;
}
dev_info(&client->dev,
"tw9910 Product ID %0x:%0x\n", GET_ID(val), GET_ReV(val));
"tw9910 Product ID %0x:%0x\n", GET_ID(val), priv->revision);
icd->vdev->tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL;
icd->vdev->current_norm = V4L2_STD_NTSC;