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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2017-12-21 15:00:27 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2017-12-21 15:01:25 +0100
commitd9f7e5584f0e3e34a2c14825657a6b31e7184171 (patch)
treef1b58594ba11c6c41c3acddde35890f68c42ea9e /drivers/clocksource
parenteffee16e4c0cc8b570d372e33633e9f9bc8359c7 (diff)
parent284bbc782445283e9a5124666dda8010f379f179 (diff)
Merge tag 'v4.9.67' into 4.9-1.0.x-imx-fixes-stable-merge
This is the 4.9.67 stable release Resolved conflicts: arch/arm/boot/dts/imx6sx-sdb.dts drivers/dma/imx-sdma.c drivers/mmc/core/host.c drivers/usb/chipidea/otg.c sound/soc/fsl/fsl_ssi.c This merge also reverts commit 3a654a85932f ("dmaengine: imx-sdma - correct the dma transfer residue calculation"). The downstream kernel seems to use different structures and already use buf_ptail in its calculation.
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/arm_arch_timer.c9
-rw-r--r--drivers/clocksource/cs5535-clockevt.c3
2 files changed, 10 insertions, 2 deletions
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 73c487da6d2a..a2503db7e533 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -81,6 +81,7 @@ static struct clock_event_device __percpu *arch_timer_evt;
static enum ppi_nr arch_timer_uses_ppi = VIRT_PPI;
static bool arch_timer_c3stop;
static bool arch_timer_mem_use_virtual;
+static bool arch_counter_suspend_stop;
static bool evtstrm_enable = IS_ENABLED(CONFIG_ARM_ARCH_TIMER_EVTSTREAM);
@@ -576,7 +577,7 @@ static struct clocksource clocksource_counter = {
.rating = 400,
.read = arch_counter_read,
.mask = CLOCKSOURCE_MASK(56),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_SUSPEND_NONSTOP,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static struct cyclecounter cyclecounter = {
@@ -616,6 +617,8 @@ static void __init arch_counter_register(unsigned type)
arch_timer_read_counter = arch_counter_get_cntvct_mem;
}
+ if (!arch_counter_suspend_stop)
+ clocksource_counter.flags |= CLOCK_SOURCE_SUSPEND_NONSTOP;
start_count = arch_timer_read_counter();
clocksource_register_hz(&clocksource_counter, arch_timer_rate);
cyclecounter.mult = clocksource_counter.mult;
@@ -907,6 +910,10 @@ static int __init arch_timer_of_init(struct device_node *np)
of_property_read_bool(np, "arm,cpu-registers-not-fw-configured"))
arch_timer_uses_ppi = PHYS_SECURE_PPI;
+ /* On some systems, the counter stops ticking when in suspend. */
+ arch_counter_suspend_stop = of_property_read_bool(np,
+ "arm,no-tick-in-suspend");
+
return arch_timer_init();
}
CLOCKSOURCE_OF_DECLARE(armv7_arch_timer, "arm,armv7-timer", arch_timer_of_init);
diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index 9a7e37cf56b0..e1d7373e63e0 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -117,7 +117,8 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
/* Turn off the clock (and clear the event) */
disable_timer(cs5535_event_clock);
- if (clockevent_state_shutdown(&cs5535_clockevent))
+ if (clockevent_state_detached(&cs5535_clockevent) ||
+ clockevent_state_shutdown(&cs5535_clockevent))
return IRQ_HANDLED;
/* Clear the counter */