diff options
| author | Michel Ludwig <michel.ludwig@gmail.com> | 2007-11-16 07:49:49 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-25 19:02:14 -0200 |
| commit | 5403bbae9bfebe1f2df3a022c83e54f70906cefe (patch) | |
| tree | 5a39bb22938d9c360b23c77e07513f8a7643e071 /drivers/media/video/tuner-xc2028.c | |
| parent | a37b4c9bc87a74ed5003c385eae264fc0acf6b35 (diff) | |
| download | lwn-5403bbae9bfebe1f2df3a022c83e54f70906cefe.tar.gz lwn-5403bbae9bfebe1f2df3a022c83e54f70906cefe.zip | |
V4L/DVB (6612): Allow RESET_CLK callback and avoids unneeded loading
TM5600/TM6000 needs clock reset during firmware load. This patch adds the
capability of caling a callback method for this.
Also, avoids uneeded firmware loads.
Signed-off-by: Michel Ludwig <michel.ludwig@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/tuner-xc2028.c')
| -rw-r--r-- | drivers/media/video/tuner-xc2028.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/video/tuner-xc2028.c b/drivers/media/video/tuner-xc2028.c index 0a2ffe4f38d0..89e6e64786ea 100644 --- a/drivers/media/video/tuner-xc2028.c +++ b/drivers/media/video/tuner-xc2028.c @@ -461,6 +461,23 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type, } continue; } + if (size >= 0xff00) { + switch (size) { + case 0xff00: + rc = priv->tuner_callback(priv->video_dev, + XC2028_RESET_CLK, 0); + if (rc < 0) { + tuner_err("Error at RESET code %d\n", + (*p) & 0x7f); + return -EINVAL; + } + default: + tuner_info("Invalid RESET code %d\n", + size & 0x7f); + return -EINVAL; + + } + } /* Checks for a sleep command */ if (size & 0x8000) { @@ -627,6 +644,9 @@ static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode, priv->bandwidth = bandwidth; } + if (!change_digital_bandwidth && priv->mode == T_DIGITAL_TV) + return 0; + /* Load INIT1, if needed */ tuner_dbg("Load init1 firmware, if exists\n"); type0 = BASE | INIT1; |