From: "Edward A. James" <eaja...@us.ibm.com>
Reset causes problems for operations requiring multiple scoms (e.g. i2c
over scom). Instead, reset scom engine during probe.
Signed-off-by: Edward A. James <eaja...@us.ibm.com>
---
drivers/fsi/fsi-scom.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/fsi/fsi-scom.c b/drivers/fsi/fsi-scom.c
index 98d062f..e13353a 100644
--- a/drivers/fsi/fsi-scom.c
+++ b/drivers/fsi/fsi-scom.c
@@ -57,12 +57,6 @@ static int put_scom(struct scom_device *scom_dev, uint64_t
value,
int rc;
uint32_t data;
- data = cpu_to_be32(SCOM_RESET_CMD);
- rc = fsi_device_write(scom_dev->fsi_dev, SCOM_RESET_REG, &data,
- sizeof(uint32_t));
- if (rc)
- return rc;
-
data = cpu_to_be32((value >> 32) & 0xffffffff);
rc = fsi_device_write(scom_dev->fsi_dev, SCOM_DATA0_REG, &data,
sizeof(uint32_t));
@@ -186,6 +180,7 @@ static loff_t scom_llseek(struct file *file, loff_t offset,
int whence)
static int scom_probe(struct device *dev)
{
+ uint32_t data;
struct fsi_device *fsi_dev = to_fsi_dev(dev);
struct scom_device *scom;
@@ -202,6 +197,9 @@ static int scom_probe(struct device *dev)
scom->mdev.parent = dev;
list_add(&scom->link, &scom_devices);
+ data = cpu_to_be32(SCOM_RESET_CMD);
+ fsi_device_write(fsi_dev, SCOM_RESET_REG, &data, sizeof(uint32_t));
+
return misc_register(&scom->mdev);
}
--
1.8.3.1
