[PATCH 1/3] bus: ti-sysc: Fix initializing module_pa for modules without sysc register

Tony Lindgren tony at atomide.com
Tue Jan 26 02:28:33 EST 2021


We have interconnect target modules with no known registers using only
clocks and resets, but we still want to detect them based on the module
IO range. So let's call sysc_parse_and_check_child_range() earlier so we
have module_pa properly initialized.

Fixes: 2928135c93f8 ("bus: ti-sysc: Support modules without control registers")
Signed-off-by: Tony Lindgren <tony at atomide.com>
---
 drivers/bus/ti-sysc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -856,15 +856,15 @@ static int sysc_map_and_check_registers(struct sysc *ddata)
 	struct device_node *np = ddata->dev->of_node;
 	int error;
 
-	if (!of_get_property(np, "reg", NULL))
-		return 0;
-
 	error = sysc_parse_and_check_child_range(ddata);
 	if (error)
 		return error;
 
 	sysc_check_children(ddata);
 
+	if (!of_get_property(np, "reg", NULL))
+		return 0;
+
 	error = sysc_parse_registers(ddata);
 	if (error)
 		return error;
-- 
2.30.0



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