From: Tony Lindgren <tony@atomide.com>
Date: Mon, 25 Jan 2021 08:49:14 +0000 (+0200)
Subject: bus: ti-sysc: Fix initializing module_pa for modules without sysc register
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=ce80dcb4ab77edb5f64e364aa1c99803ec9b6d89;p=users%2Fjedix%2Flinux-maple.git

bus: ti-sysc: Fix initializing module_pa for modules without sysc register

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@atomide.com>
---

diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index a27d751cf219d..f8cba6eaddc57 100644
--- 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;