Most DT ARM machs require common clock providers initialized before timers.
Currently, arch/arm machs use .init_time to call of_clk_init right before
clocksource_of_init. This prevents to remove that callback and use the default
one instead.
This patch adds a call to of_clk_init() to the default .init_time callback
for COMMON_CLK enabled machs to allow to remove custom callbacks where applicable.
While at it, also reorder includes alphabetically.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
---
Changelog:
v1->v2:
- protect call to of_clk_init which is only available for COMMON_CLK to
not break !COMMON_CLK machs. (Reported by Olof Johanssen)
RFCv2->v1:
- only call of_clk_init(NULL) when no custom .init_time is set
(Suggested by Soeren Brinkmann)
RFCv1->RFCv2:
- reorder includes alphabetically
Cc: Olof Johansson <olof@xxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: STEricsson <STEricsson_nomadik_linux@xxxxxxxxxxx>
Cc: linux-tegra@xxxxxxxxxxxxxxx
Cc: linux-rpi-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-samsung-soc@xxxxxxxxxxxxxxx
Cc: kernel@xxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
arch/arm/kernel/time.c | 29 +++++++++++++++++------------
1 file changed, 17 insertions(+), 12 deletions(-)
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 98aee32..829a96d 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -11,25 +11,26 @@
* This file contains the ARM-specific time handling details:
* reading the RTC at bootup, etc...
*/
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/errno.h>
#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/profile.h>
#include <linux/sched.h>
+#include <linux/sched_clock.h>
#include <linux/smp.h>
+#include <linux/time.h>
#include <linux/timex.h>
-#include <linux/errno.h>
-#include <linux/profile.h>
#include <linux/timer.h>
-#include <linux/clocksource.h>
-#include <linux/irq.h>
-#include <linux/sched_clock.h>
-#include <asm/thread_info.h>
-#include <asm/stacktrace.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
+#include <asm/stacktrace.h>
+#include <asm/thread_info.h>
#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || \
defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE)
@@ -116,8 +117,12 @@ int __init register_persistent_clock(clock_access_fn read_boot,
void __init time_init(void)
{
- if (machine_desc->init_time)
+ if (machine_desc->init_time) {
machine_desc->init_time();
- else
+ } else {
+#ifdef CONFIG_COMMON_CLK
+ of_clk_init(NULL);
+#endif
clocksource_of_init();
+ }
}
--
1.7.10.4
--
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