powerpc: Use of_address_to_resource()

Replace open coded reading of "reg" or of_get_address()/
of_translate_address() calls with a single call to
of_address_to_resource().

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230329220337.141295-1-robh@kernel.org

2 files changed, 13 insertions, 11 deletions

diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c
index a167ee88fbf9..02ff260ae1ee 100644
--- a/arch/powerpc/platforms/embedded6xx/holly.c
+++ b/arch/powerpc/platforms/embedded6xx/holly.c
@@ -205,16 +205,15 @@ static void __noreturn holly_restart(char *cmd)
 	__be32 __iomem *ocn_bar1 = NULL;
 	unsigned long bar;
 	struct device_node *bridge = NULL;
-	const void *prop;
-	int size;
+	struct resource res;
 	phys_addr_t addr = 0xc0000000;
 
 	local_irq_disable();
 
 	bridge = of_find_node_by_type(NULL, "tsi-bridge");
 	if (bridge) {
-		prop = of_get_property(bridge, "reg", &size);
-		addr = of_translate_address(bridge, prop);
+		of_address_to_resource(bridge, 0, &res);
+		addr = res.start;
 		of_node_put(bridge);
 	}
 	addr += (TSI108_PB_OFFSET + 0x414);
diff --git a/arch/powerpc/platforms/embedded6xx/ls_uart.c b/arch/powerpc/platforms/embedded6xx/ls_uart.c
index 4ecbc55b37c0..6c1dbf8ae718 100644
--- a/arch/powerpc/platforms/embedded6xx/ls_uart.c
+++ b/arch/powerpc/platforms/embedded6xx/ls_uart.c
@@ -15,6 +15,7 @@
 #include <linux/serial_reg.h>
 #include <linux/serial_8250.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <asm/io.h>
 #include <asm/termbits.h>
 
@@ -114,22 +115,24 @@ static void __init ls_uart_init(void)
 static int __init ls_uarts_init(void)
 {
 	struct device_node *avr;
-	phys_addr_t phys_addr;
-	int len;
+	struct resource res;
+	int len, ret;
 
 	avr = of_find_node_by_path("/soc10x/serial@80004500");
 	if (!avr)
 		return -EINVAL;
 
 	avr_clock = *(u32*)of_get_property(avr, "clock-frequency", &len);
-	phys_addr = ((u32*)of_get_property(avr, "reg", &len))[0];
+	if (!avr_clock)
+		return -EINVAL;
 
-	of_node_put(avr);
+	ret = of_address_to_resource(avr, 0, &res);
+	if (ret)
+		return ret;
 
-	if (!avr_clock || !phys_addr)
-		return -EINVAL;
+	of_node_put(avr);
 
-	avr_addr = ioremap(phys_addr, 32);
+	avr_addr = ioremap(res.start, 32);
 	if (!avr_addr)
 		return -EFAULT;