diff options
Diffstat (limited to 'hdata')
| -rw-r--r-- | hdata/i2c.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/hdata/i2c.c b/hdata/i2c.c index 2e14212..9fb8513 100644 --- a/hdata/i2c.c +++ b/hdata/i2c.c @@ -165,6 +165,7 @@ int parse_i2c_devs(const struct HDIF_common_hdr *hdr, int idata_index, uint32_t i2c_addr; uint32_t version; uint32_t size; + uint32_t purpose; int i, count; /* @@ -226,11 +227,9 @@ int parse_i2c_devs(const struct HDIF_common_hdr *hdr, int idata_index, */ i2c_addr = dev->i2c_addr >> 1; - prlog(PR_TRACE, "HDAT I2C: found e%dp%d - %x\n", - dev->i2cm_engine, dev->i2cm_port, i2c_addr); - + purpose = be32_to_cpu(dev->purpose); type = map_type(dev->type); - label = map_label(be32_to_cpu(dev->purpose)); + label = map_label(purpose); if (type) { compat = type->compat; name = type->name; @@ -239,6 +238,20 @@ int parse_i2c_devs(const struct HDIF_common_hdr *hdr, int idata_index, compat = NULL; } + /* + * An i2c device is unknown if either the i2c device list is + * outdated or the device is marked as unknown (0xFF) in the + * hdat. Log both cases to see what/where/why. + */ + if (!type || dev->type == 0xFF) + prlog(PR_WARNING, "HDAT I2C: found e%dp%d - %s@%x (%#x:%s)\n", + dev->i2cm_engine, dev->i2cm_port, name, i2c_addr, + purpose, label); + else + prlog(PR_TRACE, "HDAT I2C: found e%dp%d - %s@%x (%#x:%s)\n", + dev->i2cm_engine, dev->i2cm_port, name, i2c_addr, + purpose, label); + node = dt_new_addr(bus, name, i2c_addr); if (!node) continue; |