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- initialize modulators before registering devices to prevent races

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- check for number of FSM modulator channels before allocating ports
This commit is contained in:
Ralph Metzler 2017-09-09 00:21:11 +02:00
parent fe5f6b737c
commit 983949f4dd
3 changed files with 24 additions and 11 deletions
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12
ddbridge/ddbridge-core.c
View File

@ -4358,10 +4358,20 @@ int ddb_init(struct ddb *dev)
ddb_gtl_init(dev);
ddb_init_boards(dev);
if (dev->link[0].info->type == DDB_MOD &&
dev->link[0].info->version == 2) {
int ret = ddb_mod_fsm_setup(dev, 0);
if (ret < 0) {
dev_err(dev->dev, "FSM setup failed!\n");
return ret;
}
}
if (ddb_i2c_init(dev) < 0)
goto fail;
ddb_ports_init(dev);
if (dev->link[0].info->type == DDB_MOD)
ddbridge_mod_init(dev);
if (ddb_buffers_alloc(dev) < 0) {
dev_info(dev->dev,
"Could not allocate buffer memory\n");
@ -4377,8 +4387,6 @@ int ddb_init(struct ddb *dev)
ddbwritel(dev, 1, GPIO_DIRECTION);
ddbwritel(dev, 1, GPIO_OUTPUT);
}
if (dev->link[0].info->type == DDB_MOD)
ddbridge_mod_init(dev);
return 0;
fail3:

20
ddbridge/ddbridge-modulator.c
View File

@ -468,8 +468,7 @@ static int mod_setup_max2871(struct ddb *dev, u32 *reg)
return status;
}
static int mod_fsm_setup(struct ddb *dev, u32 FrequencyPlan,
u32 MaxUsedChannels)
int ddb_mod_fsm_setup(struct ddb *dev, u32 MaxUsedChannels)
{
int status = 0;
u32 Capacity;
@ -1630,16 +1629,17 @@ out:
static int mod_init_2(struct ddb *dev, u32 Frequency)
{
int status, i;
int streams = dev->link[0].info->port_num;
int i, streams = dev->link[0].info->port_num;
dev->mod_base.frequency = Frequency;
status = mod_fsm_setup(dev, 0, 0);
#if 0
status = mod_fsm_setup(dev, 0);
if (status) {
dev_err(dev->dev, "FSM setup failed!\n");
return -1;
}
#endif
for (i = 0; i < streams; i++) {
struct ddb_mod *mod = &dev->mod[i];
@ -1790,11 +1790,15 @@ static int mod_init_3(struct ddb *dev, u32 Frequency)
int ddbridge_mod_init(struct ddb *dev)
{
if (dev->link[0].info->version <= 1)
switch (dev->link[0].info->version) {
case 0:
case 1:
return mod_init_1(dev, 722000000);
if (dev->link[0].info->version == 2)
case 2:
return mod_init_2(dev, 114000000);
if (dev->link[0].info->version == 3)
case 3:
return mod_init_3(dev, 503250000);
default:
return -1;
}
}

1
ddbridge/ddbridge.h
View File

@ -545,6 +545,7 @@ int ddbridge_mod_init(struct ddb *dev);
void ddbridge_mod_output_stop(struct ddb_output *output);
int ddbridge_mod_output_start(struct ddb_output *output);
void ddbridge_mod_rate_handler(unsigned long data);
int ddb_mod_fsm_setup(struct ddb *dev, u32 MaxUsedChannels);
void ddb_device_destroy(struct ddb *dev);
void ddb_nsd_detach(struct ddb *dev);