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prevent lockup

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This commit is contained in:
rjkm 2024-09-19 10:35:39 +02:00
parent 0fcd9563f1
commit 59cbab6383
1 changed files with 6 additions and 4 deletions
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10
ddbridge/ddbridge-modulator.c
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@ -452,18 +452,20 @@ int ddbridge_mod_output_start(struct ddb_output *output)
static int mod_write_max2871(struct ddb *dev, u32 val)
{
u32 retry = 100;
ddbwritel(dev, val, MAX2871_OUTDATA);
ddbwritel(dev, MAX2871_CONTROL_CE | MAX2871_CONTROL_WRITE,
MAX2871_CONTROL);
while (1) {
while (--retry) {
u32 ControlReg = ddbreadl(dev, MAX2871_CONTROL);
if (ControlReg == 0xFFFFFFFF)
return -EIO;
if ((ControlReg & MAX2871_CONTROL_WRITE) == 0)
break;
if ((ControlReg & MAX2871_CONTROL_WRITE) == 0)
return 0;
udelay(10);
}
return 0;
return -EIO;
}
static u32 max2871_fsm[6] = {