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| author | Manu Abraham <abraham.manu@gmail.com> | 2008-02-03 23:37:02 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-29 20:53:23 +0100 |
| commit | 40e8ce3dba8e9437ed48c88c268615dc0a4bebb2 (patch) | |
| tree | b5588068dfd4ff2e7a16c420f98110a5be6ce711 /drivers/media/dvb/frontends/stb6100.c | |
| parent | V4L/DVB (9456): Select STB0899, STB6100, TDA8261 for budget_ci and budget_av ... (diff) | |
| download | linux-40e8ce3dba8e9437ed48c88c268615dc0a4bebb2.tar.xz linux-40e8ce3dba8e9437ed48c88c268615dc0a4bebb2.zip | |
V4L/DVB (9457): Optimization, Fix a Bug
* cut down some I/O operations by disabling "disable gate"
* budget_av was left with the gate open, thereby more susceptible
to RF interference due to I/O operations
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/stb6100.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stb6100.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/media/dvb/frontends/stb6100.c b/drivers/media/dvb/frontends/stb6100.c index c8fdc1e99df1..f404a4d0fb17 100644 --- a/drivers/media/dvb/frontends/stb6100.c +++ b/drivers/media/dvb/frontends/stb6100.c @@ -134,16 +134,7 @@ static int stb6100_read_regs(struct stb6100_state *state, u8 regs[]) .len = STB6100_NUMREGS }; - if (state->frontend->ops.i2c_gate_ctrl) - if ((rc = state->frontend->ops.i2c_gate_ctrl(state->frontend, 1)) < 0) - return rc; - rc = i2c_transfer(state->i2c, &msg, 1); - if (state->frontend->ops.i2c_gate_ctrl) { - int rc2; - if ((rc2 = state->frontend->ops.i2c_gate_ctrl(state->frontend, 0)) < 0) - return rc2; - } if (unlikely(rc != 1)) { dprintk(verbose, FE_ERROR, 1, "Read (0x%x) err, rc=[%d]", state->config->tuner_address, rc); @@ -200,15 +191,7 @@ static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int st for (i = 0; i < len; i++) dprintk(verbose, FE_DEBUG, 1, " %s: 0x%02x", stb6100_regnames[start + i], buf[i]); } - if (state->frontend->ops.i2c_gate_ctrl) - if ((rc = state->frontend->ops.i2c_gate_ctrl(state->frontend, 1)) < 0) - return rc; rc = i2c_transfer(state->i2c, &msg, 1); - if (state->frontend->ops.i2c_gate_ctrl) { - int rc2; - if ((rc2 = state->frontend->ops.i2c_gate_ctrl(state->frontend, 0)) < 0) - return rc2; - } if (unlikely(rc != 1)) { dprintk(verbose, FE_ERROR, 1, "(0x%x) write err [%d:%d], rc=[%d]", (unsigned int)state->config->tuner_address, start, len, rc); |