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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 02:15:18 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 02:15:18 +0300
commit174ddfd5dfbfc2d91a45332f809977050ac3fdc5 (patch)
tree825625de29439389f50da2fc2f92f3a51dff5f2d /arch/mips/mti-malta
parent3cb6653552ddd0b5670a445032ecb9f162e950ff (diff)
parentb94bf594cf8ed67cdd0439e70fa939783471597a (diff)
downloadlinux-174ddfd5dfbfc2d91a45332f809977050ac3fdc5.tar.xz
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: "The timer departement delivers: - more year 2038 rework - a massive rework of the arm achitected timer - preparatory patches to allow NTP correction of clock event devices to avoid early expiry - the usual pile of fixes and enhancements all over the place" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (91 commits) timer/sysclt: Restrict timer migration sysctl values to 0 and 1 arm64/arch_timer: Mark errata handlers as __maybe_unused Clocksource/mips-gic: Remove redundant non devicetree init MIPS/Malta: Probe gic-timer via devicetree clocksource: Use GENMASK_ULL in definition of CLOCKSOURCE_MASK acpi/arm64: Add SBSA Generic Watchdog support in GTDT driver clocksource: arm_arch_timer: add GTDT support for memory-mapped timer acpi/arm64: Add memory-mapped timer support in GTDT driver clocksource: arm_arch_timer: simplify ACPI support code. acpi/arm64: Add GTDT table parse driver clocksource: arm_arch_timer: split MMIO timer probing. clocksource: arm_arch_timer: add structs to describe MMIO timer clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call clocksource: arm_arch_timer: refactor arch_timer_needs_probing clocksource: arm_arch_timer: split dt-only rate handling x86/uv/time: Set ->min_delta_ticks and ->max_delta_ticks unicore32/time: Set ->min_delta_ticks and ->max_delta_ticks um/time: Set ->min_delta_ticks and ->max_delta_ticks tile/time: Set ->min_delta_ticks and ->max_delta_ticks score/time: Set ->min_delta_ticks and ->max_delta_ticks ...
Diffstat (limited to 'arch/mips/mti-malta')
-rw-r--r--arch/mips/mti-malta/malta-time.c31
1 files changed, 30 insertions, 1 deletions
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index 1829a9031eec..289edcfadd7c 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -21,6 +21,7 @@
#include <linux/i8253.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
+#include <linux/libfdt.h>
#include <linux/math64.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
@@ -207,6 +208,33 @@ static void __init init_rtc(void)
CMOS_WRITE(ctrl & ~RTC_SET, RTC_CONTROL);
}
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+static u32 gic_frequency_dt;
+
+static struct property gic_frequency_prop = {
+ .name = "clock-frequency",
+ .length = sizeof(u32),
+ .value = &gic_frequency_dt,
+};
+
+static void update_gic_frequency_dt(void)
+{
+ struct device_node *node;
+
+ gic_frequency_dt = cpu_to_be32(gic_frequency);
+
+ node = of_find_compatible_node(NULL, NULL, "mti,gic-timer");
+ if (!node) {
+ pr_err("mti,gic-timer device node not found\n");
+ return;
+ }
+
+ if (of_update_property(node, &gic_frequency_prop) < 0)
+ pr_err("error updating gic frequency property\n");
+}
+
+#endif
+
void __init plat_time_init(void)
{
unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK);
@@ -236,7 +264,8 @@ void __init plat_time_init(void)
printk("GIC frequency %d.%02d MHz\n", freq/1000000,
(freq%1000000)*100/1000000);
#ifdef CONFIG_CLKSRC_MIPS_GIC
- gic_clocksource_init(gic_frequency);
+ update_gic_frequency_dt();
+ clocksource_probe();
#endif
}
#endif