提交 28185917 编写于 作者: M Manu Abraham 提交者: Mauro Carvalho Chehab

V4L/DVB (13800): [Mantis] I2C optimization. Required delay is much lesser than 1mS.

Do not wait, keep looping instead.
Signed-off-by: NManu Abraham <manu@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
上级 68fe255c
......@@ -58,7 +58,6 @@ static int mantis_i2c_read(struct mantis_pci *mantis, const struct i2c_msg *msg)
/* wait for xfer completion */
for (trials = 0; trials < TRIALS; trials++) {
msleep(1);
stat = mmread(MANTIS_INT_STAT);
if (stat & MANTIS_INT_I2CDONE)
break;
......@@ -71,7 +70,6 @@ static int mantis_i2c_read(struct mantis_pci *mantis, const struct i2c_msg *msg)
stat = mmread(MANTIS_INT_STAT);
if (stat & MANTIS_INT_I2CRACK)
break;
msleep(1);
}
dprintk(MANTIS_TMG, 0, "I2CRACK: trials=%d\n", trials);
......@@ -108,7 +106,6 @@ static int mantis_i2c_write(struct mantis_pci *mantis, const struct i2c_msg *msg
/* wait for xfer completion */
for (trials = 0; trials < TRIALS; trials++) {
msleep(1);
stat = mmread(MANTIS_INT_STAT);
if (stat & MANTIS_INT_I2CDONE)
break;
......@@ -121,7 +118,6 @@ static int mantis_i2c_write(struct mantis_pci *mantis, const struct i2c_msg *msg
stat = mmread(MANTIS_INT_STAT);
if (stat & MANTIS_INT_I2CRACK)
break;
msleep(1);
}
dprintk(MANTIS_TMG, 0, "I2CRACK: trials=%d\n", trials);
......@@ -164,7 +160,6 @@ static int mantis_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs, in
mmwrite(txd, MANTIS_I2CDATA_CTL);
/* wait for xfer completion */
for (trials = 0; trials < TRIALS; trials++) {
msleep(1);
stat = mmread(MANTIS_INT_STAT);
if (stat & MANTIS_INT_I2CDONE)
break;
......
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