linux-kernel - [PATCH] clocksource: Add BE/LE APIs support for clocksource counter reading.

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Date:	Wed, 10 Sep 2014 17:20:19 +0800
From:	Xiubo Li <Li.Xiubo@...escale.com>
To:	<tglx@...utronix.de>, <daniel.lezcano@...aro.org>
CC:	<linux-kernel@...r.kernel.org>, Xiubo Li <Li.Xiubo@...escale.com>
Subject: [PATCH] clocksource: Add BE/LE APIs support for clocksource counter reading.

Signed-off-by: Xiubo Li <Li.Xiubo@...escale.com>
---
 drivers/clocksource/mmio.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drivers/clocksource/mmio.c b/drivers/clocksource/mmio.c
index 1593ade..ddc5214 100644
--- a/drivers/clocksource/mmio.c
+++ b/drivers/clocksource/mmio.c
@@ -20,21 +20,65 @@ static inline struct clocksource_mmio *to_mmio_clksrc(struct clocksource *c)
 	return container_of(c, struct clocksource_mmio, clksrc);
 }
 
+cycle_t clocksource_mmio_readl_up_be(struct clocksource *c)
+{
+	return (cycle_t)be32_to_cpu(readl_relaxed(to_mmio_clksrc(c)->reg));
+}
+
+cycle_t clocksource_mmio_readl_up_le(struct clocksource *c)
+{
+	return (cycle_t)le32_to_cpu(readl_relaxed(to_mmio_clksrc(c)->reg));
+}
+
 cycle_t clocksource_mmio_readl_up(struct clocksource *c)
 {
 	return (cycle_t)readl_relaxed(to_mmio_clksrc(c)->reg);
 }
 
+cycle_t clocksource_mmio_readl_down_be(struct clocksource *c)
+{
+	return ~(cycle_t)be32_to_cpu(readl_relaxed(to_mmio_clksrc(c)->reg))
+		& c->mask;
+}
+
+cycle_t clocksource_mmio_readl_down_le(struct clocksource *c)
+{
+	return ~(cycle_t)le32_to_cpu(readl_relaxed(to_mmio_clksrc(c)->reg))
+		& c->mask;
+}
+
 cycle_t clocksource_mmio_readl_down(struct clocksource *c)
 {
 	return ~(cycle_t)readl_relaxed(to_mmio_clksrc(c)->reg) & c->mask;
 }
 
+cycle_t clocksource_mmio_readw_up_be(struct clocksource *c)
+{
+	return (cycle_t)be16_to_cpu(readw_relaxed(to_mmio_clksrc(c)->reg));
+}
+
+cycle_t clocksource_mmio_readw_up_le(struct clocksource *c)
+{
+	return (cycle_t)le16_to_cpu(readw_relaxed(to_mmio_clksrc(c)->reg));
+}
+
 cycle_t clocksource_mmio_readw_up(struct clocksource *c)
 {
 	return (cycle_t)readw_relaxed(to_mmio_clksrc(c)->reg);
 }
 
+cycle_t clocksource_mmio_readw_down_be(struct clocksource *c)
+{
+	return ~(cycle_t)be16_to_cpu(readw_relaxed(to_mmio_clksrc(c)->reg))
+		& c->mask;
+}
+
+cycle_t clocksource_mmio_readw_down_le(struct clocksource *c)
+{
+	return ~(cycle_t)le16_to_cpu(readw_relaxed(to_mmio_clksrc(c)->reg))
+		& c->mask;
+}
+
 cycle_t clocksource_mmio_readw_down(struct clocksource *c)
 {
 	return ~(cycle_t)readw_relaxed(to_mmio_clksrc(c)->reg) & c->mask;
-- 
2.1.0.27.g96db324

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