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path: root/drivers/timer/timer-uclass.c
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Diffstat (limited to 'drivers/timer/timer-uclass.c')
-rw-r--r--drivers/timer/timer-uclass.c52
1 files changed, 30 insertions, 22 deletions
diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c
index a84755f4c5a..45397b230f0 100644
--- a/drivers/timer/timer-uclass.c
+++ b/drivers/timer/timer-uclass.c
@@ -8,6 +8,7 @@
#include <dm.h>
#include <dm/lists.h>
#include <dm/device-internal.h>
+#include <dm/root.h>
#include <clk.h>
#include <errno.h>
#include <timer.h>
@@ -54,9 +55,10 @@ static int timer_pre_probe(struct udevice *dev)
if (IS_ERR_VALUE(ret))
return ret;
uc_priv->clock_rate = ret;
- } else
- uc_priv->clock_rate = fdtdec_get_int(gd->fdt_blob,
- dev_of_offset(dev), "clock-frequency", 0);
+ } else {
+ uc_priv->clock_rate =
+ dev_read_u32_default(dev, "clock-frequency", 0);
+ }
#endif
return 0;
@@ -83,37 +85,43 @@ u64 timer_conv_64(u32 count)
int notrace dm_timer_init(void)
{
- __maybe_unused const void *blob = gd->fdt_blob;
struct udevice *dev = NULL;
- int node = -ENOENT;
+ __maybe_unused ofnode node;
int ret;
if (gd->timer)
return 0;
+ /*
+ * Directly access gd->dm_root to suppress error messages, if the
+ * virtual root driver does not yet exist.
+ */
+ if (gd->dm_root == NULL)
+ return -EAGAIN;
+
#if !CONFIG_IS_ENABLED(OF_PLATDATA)
/* Check for a chosen timer to be used for tick */
- node = fdtdec_get_chosen_node(blob, "tick-timer");
+ node = ofnode_get_chosen_node("tick-timer");
+
+ if (ofnode_valid(node) &&
+ uclass_get_device_by_ofnode(UCLASS_TIMER, node, &dev)) {
+ /*
+ * If the timer is not marked to be bound before
+ * relocation, bind it anyway.
+ */
+ if (!lists_bind_fdt(dm_root(), node, &dev)) {
+ ret = device_probe(dev);
+ if (ret)
+ return ret;
+ }
+ }
#endif
- if (node < 0) {
- /* No chosen timer, trying first available timer */
+
+ if (!dev) {
+ /* Fall back to the first available timer */
ret = uclass_first_device_err(UCLASS_TIMER, &dev);
if (ret)
return ret;
- } else {
- if (uclass_get_device_by_of_offset(UCLASS_TIMER, node, &dev)) {
- /*
- * If the timer is not marked to be bound before
- * relocation, bind it anyway.
- */
- if (node > 0 &&
- !lists_bind_fdt(gd->dm_root, offset_to_ofnode(node),
- &dev)) {
- ret = device_probe(dev);
- if (ret)
- return ret;
- }
- }
}
if (dev) {