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authorManu Abraham <abraham.manu@gmail.com>2008-02-03 19:37:02 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-12-29 17:53:23 -0200
commit40e8ce3dba8e9437ed48c88c268615dc0a4bebb2 (patch)
treeb5588068dfd4ff2e7a16c420f98110a5be6ce711 /drivers/media/dvb/frontends/stb6100.c
parented3d150eacfa87087f705a908a2586bdec5bf9b7 (diff)
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.c17
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/media/dvb/frontends/stb6100.c b/drivers/media/dvb/frontends/stb6100.c
index c8fdc1e99df..f404a4d0fb1 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);