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macintosh: Use of_property_read_reg() to parse "reg" 

Use the recently added of_property_read_reg() helper to get the
untranslated "reg" address value.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230609182926.1763589-1-robh@kernel.org
This commit is contained in:
Rob Herring 2023-06-09 12:29:25 -06:00 committed by Michael Ellerman
parent 93cfa6fb9f
commit 6f3bdbbeaf
1 changed files with 7 additions and 8 deletions
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15
drivers/macintosh/smu.c
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@ -33,7 +33,8 @@
#include <linux/delay.h>
#include <linux/poll.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/slab.h>
@ -470,7 +471,7 @@ EXPORT_SYMBOL(smu_present);
int __init smu_init (void)
{
struct device_node *np;
const u32 *data;
u64 data;
int ret = 0;
np = of_find_node_by_type(NULL, "smu");
@ -514,8 +515,7 @@ int __init smu_init (void)
ret = -ENXIO;
goto fail_bootmem;
}
data = of_get_property(smu->db_node, "reg", NULL);
if (data == NULL) {
if (of_property_read_reg(smu->db_node, 0, &data, NULL)) {
printk(KERN_ERR "SMU: Can't find doorbell GPIO address !\n");
ret = -ENXIO;
goto fail_db_node;
@ -525,7 +525,7 @@ int __init smu_init (void)
* and ack. GPIOs are at 0x50, best would be to find that out
* in the device-tree though.
*/
smu->doorbell = *data;
smu->doorbell = data;
if (smu->doorbell < 0x50)
smu->doorbell += 0x50;
@ -534,13 +534,12 @@ int __init smu_init (void)
smu->msg_node = of_find_node_by_name(NULL, "smu-interrupt");
if (smu->msg_node == NULL)
break;
data = of_get_property(smu->msg_node, "reg", NULL);
if (data == NULL) {
if (of_property_read_reg(smu->msg_node, 0, &data, NULL)) {
of_node_put(smu->msg_node);
smu->msg_node = NULL;
break;
}
smu->msg = *data;
smu->msg = data;
if (smu->msg < 0x50)
smu->msg += 0x50;
} while(0);