From 1ce6311b99fe809530e8e2181bb73855f85041d1 Mon Sep 17 00:00:00 2001
From: Suzuki K Poulose <suzuki.poulose@arm.com>
Date: Tue, 23 Feb 2016 10:49:49 +0000
Subject: arm-cci: Get the status of a counter

Add helper routines to check if the counter is enabled or not.

Cc: Punit Agrawal <punit.agrawal@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/bus/arm-cci.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/bus')

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 420c30c15419..d28903712eb8 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -707,6 +707,12 @@ static void pmu_enable_counter(struct cci_pmu *cci_pmu, int idx)
 	pmu_write_register(cci_pmu, 1, idx, CCI_PMU_CNTR_CTRL);
 }
 
+static bool __maybe_unused
+pmu_counter_is_enabled(struct cci_pmu *cci_pmu, int idx)
+{
+	return (pmu_read_register(cci_pmu, idx, CCI_PMU_CNTR_CTRL) & 0x1) != 0;
+}
+
 static void pmu_set_event(struct cci_pmu *cci_pmu, int idx, unsigned long event)
 {
 	pmu_write_register(cci_pmu, event, idx, CCI_PMU_EVT_SEL);
-- 
cgit v1.2.3-58-ga151