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media: staging: media: zoran: introduce zoran_i2c_init 

Reduces the size of the probe function by adding zoran_i2c_init and
zoran_i2c_exit functions.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Corentin Labbe 2021-12-14 17:16:28 +01:00 committed by Mauro Carvalho Chehab
parent 3b70b0ecd7
commit 8f7cc5c0b0
1 changed files with 54 additions and 19 deletions
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73
drivers/staging/media/zoran/zoran_card.c
View File

@ -931,6 +931,53 @@ static int zoran_init_video_devices(struct zoran *zr)
return err;
}
/*
* v4l2_device_unregister() will care about removing zr->encoder/zr->decoder
* via v4l2_i2c_subdev_unregister()
*/
static int zoran_i2c_init(struct zoran *zr)
{
int err;
pci_info(zr->pci_dev, "Initializing i2c bus...\n");
err = zoran_register_i2c(zr);
if (err) {
pci_err(zr->pci_dev, "%s - cannot initialize i2c bus\n", __func__);
return err;
}
zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter,
zr->card.i2c_decoder, 0,
zr->card.addrs_decoder);
if (!zr->decoder) {
pci_err(zr->pci_dev, "Fail to get decoder %s\n", zr->card.i2c_decoder);
err = -EINVAL;
goto error_decoder;
}
if (zr->card.i2c_encoder) {
zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter,
zr->card.i2c_encoder, 0,
zr->card.addrs_encoder);
if (!zr->encoder) {
pci_err(zr->pci_dev, "Fail to get encoder %s\n", zr->card.i2c_encoder);
err = -EINVAL;
goto error_decoder;
}
}
return 0;
error_decoder:
zoran_unregister_i2c(zr);
return err;
}
static void zoran_i2c_exit(struct zoran *zr)
{
zoran_unregister_i2c(zr);
}
void zoran_open_init_params(struct zoran *zr)
{
int i;
@ -1059,7 +1106,7 @@ static void zoran_remove(struct pci_dev *pdev)
videocodec_exit(zr);
/* unregister i2c bus */
zoran_unregister_i2c(zr);
zoran_i2c_exit(zr);
/* disable PCI bus-mastering */
zoran_set_pci_master(zr, 0);
/* put chip into reset */
@ -1340,22 +1387,10 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
zr36057_restart(zr);
/* i2c */
pci_info(zr->pci_dev, "Initializing i2c bus...\n");
if (zoran_register_i2c(zr) < 0) {
pci_err(pdev, "%s - can't initialize i2c bus\n", __func__);
err = zoran_i2c_init(zr);
if (err)
goto zr_free_irq;
}
zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter,
zr->card.i2c_decoder, 0,
zr->card.addrs_decoder);
if (zr->card.i2c_encoder)
zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev, &zr->i2c_adapter,
zr->card.i2c_encoder, 0,
zr->card.addrs_encoder);
pci_info(zr->pci_dev, "Initializing videocodec bus...\n");
err = videocodec_init(zr);
@ -1370,15 +1405,15 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (zr->card.video_codec != 0) {
master_codec = zoran_setup_videocodec(zr, zr->card.video_codec);
if (!master_codec)
goto zr_unreg_i2c;
goto zr_unreg_videocodec;
zr->codec = videocodec_attach(master_codec);
if (!zr->codec) {
pci_err(pdev, "%s - no codec found\n", __func__);
goto zr_unreg_i2c;
goto zr_unreg_videocodec;
}
if (zr->codec->type != zr->card.video_codec) {
pci_err(pdev, "%s - wrong codec\n", __func__);
goto zr_detach_codec;
goto zr_unreg_videocodec;
}
}
if (zr->card.video_vfe != 0) {
@ -1417,7 +1452,7 @@ zr_detach_codec:
zr_unreg_videocodec:
videocodec_exit(zr);
zr_unreg_i2c:
zoran_unregister_i2c(zr);
zoran_i2c_exit(zr);
zr_free_irq:
btwrite(0, ZR36057_SPGPPCR);
pci_free_irq(zr->pci_dev, 0, zr);