From: Christopher Bostic <[email protected]> Prior to scanning a master check if the optional property no-scan-on-init is present. If it is then avoid scanning. This is necessary in cases where a master scan could interfere with another FSI master on the same bus.
Signed-off-by: Christopher Bostic <[email protected]> Acked-by: Jeremy Kerr <[email protected]> Signed-off-by: Joel Stanley <[email protected]> --- drivers/fsi/fsi-core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 8d8b25809452..4c03d6933646 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -901,6 +901,7 @@ static DEVICE_ATTR(break, 0200, NULL, master_break_store); int fsi_master_register(struct fsi_master *master) { int rc; + struct device_node *np; if (!master) return -EINVAL; @@ -928,7 +929,9 @@ int fsi_master_register(struct fsi_master *master) return rc; } - fsi_master_scan(master); + np = dev_of_node(&master->dev); + if (!of_property_read_bool(np, "no-scan-on-init")) + fsi_master_scan(master); return 0; } -- 2.15.1
