6 Nov
2015
6 Nov
'15
8 a.m.
Hi Bin,
On 2015年11月05日 22:02, Bin Meng wrote:
Every timer device needs to have a valid clock frequency and it can be specified in the device tree. Use pre_probe() to get this in the timer uclass driver.
Signed-off-by: Bin Meng bmeng.cn@gmail.com
drivers/timer/timer-uclass.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c index 82c6897..0218591 100644 --- a/drivers/timer/timer-uclass.c +++ b/drivers/timer/timer-uclass.c @@ -9,6 +9,8 @@ #include <errno.h> #include <timer.h>
+DECLARE_GLOBAL_DATA_PTR;
- /*
- Implement a timer uclass to work with lib/time.c. The timer is usually
- a 32 bits free-running up counter. The get_rate() method is used to get
@@ -35,8 +37,19 @@ unsigned long timer_get_rate(struct udevice *dev) return uc_priv->clock_rate; }
+static int timer_pre_probe(struct udevice *dev) +{
- struct timer_dev_priv *uc_priv = dev_get_uclass_priv(dev);
- uc_priv->clock_rate = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"clock-frequency", 0);- return 0;
+}
- UCLASS_DRIVER(timer) = { .id = UCLASS_TIMER, .name = "timer",
- .pre_probe = timer_pre_probe, .per_device_auto_alloc_size = sizeof(struct timer_dev_priv), };
Acked-by: Thomas Chou thomas@wytron.com.tw