timer: add OF_PLATDATA support for timer-uclass
The timer-uclass depends on full OF_CONTROL through its interrogation
of /chosen and the code to determine the clock-frequency.
For the OF_PLATDATA case, these code-paths are disabled and it becomes
the timer driver's responsibility to correctly set the clock-frequency
in the uclass priv-data.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c
index ec10b28..a84755f 100644
--- a/drivers/timer/timer-uclass.c
+++ b/drivers/timer/timer-uclass.c
@@ -42,6 +42,7 @@
static int timer_pre_probe(struct udevice *dev)
{
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
struct clk timer_clk;
int err;
@@ -56,6 +57,7 @@
} else
uc_priv->clock_rate = fdtdec_get_int(gd->fdt_blob,
dev_of_offset(dev), "clock-frequency", 0);
+#endif
return 0;
}
@@ -81,16 +83,18 @@
int notrace dm_timer_init(void)
{
- const void *blob = gd->fdt_blob;
+ __maybe_unused const void *blob = gd->fdt_blob;
struct udevice *dev = NULL;
- int node;
+ int node = -ENOENT;
int ret;
if (gd->timer)
return 0;
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
/* Check for a chosen timer to be used for tick */
node = fdtdec_get_chosen_node(blob, "tick-timer");
+#endif
if (node < 0) {
/* No chosen timer, trying first available timer */
ret = uclass_first_device_err(UCLASS_TIMER, &dev);