[PATCH 08/11] ARM: ux500: convert timer suspend/resume to clock_event_device

From: Stephen Warren
Date: Thu Nov 08 2012 - 16:02:19 EST


From: Stephen Warren <swarren@xxxxxxxxxx>

Move ux500's timer suspend/resume functions from struct sys_timer
ux500_timer into struct clock_event_device nmdk_clkevt. This
will allow the sys_timer suspend/resume fields to be removed, and
eventually lead to a complete removal of struct sys_timer.

Cc: Srinidhi Kasagar <srinidhi.kasagar@xxxxxxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Stephen Warren <swarren@xxxxxxxxxx>
---
arch/arm/mach-ux500/timer.c | 7 -------
drivers/clocksource/nomadik-mtu.c | 33 ++++++++++++++++++++-------------
2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index 875309a..46a7244 100644
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -100,13 +100,6 @@ dt_fail:
ux500_twd_init();
}

-static void ux500_timer_reset(void)
-{
- nmdk_clkevt_reset();
- nmdk_clksrc_reset();
-}
-
struct sys_timer ux500_timer = {
.init = ux500_timer_init,
- .resume = ux500_timer_reset,
};
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 23c780b..a60b077 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -134,12 +134,32 @@ static void nmdk_clkevt_mode(enum clock_event_mode mode,
}
}

+void nmdk_clksrc_reset(void)
+{
+ /* Disable */
+ writel(0, mtu_base + MTU_CR(0));
+
+ /* ClockSource: configure load and background-load, and fire it up */
+ writel(nmdk_cycle, mtu_base + MTU_LR(0));
+ writel(nmdk_cycle, mtu_base + MTU_BGLR(0));
+
+ writel(clk_prescale | MTU_CRn_32BITS | MTU_CRn_ENA,
+ mtu_base + MTU_CR(0));
+}
+
+static void nmdk_clkevt_resume(struct clock_event_device *cedev)
+{
+ nmdk_clkevt_reset();
+ nmdk_clksrc_reset();
+}
+
static struct clock_event_device nmdk_clkevt = {
.name = "mtu_1",
.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
.rating = 200,
.set_mode = nmdk_clkevt_mode,
.set_next_event = nmdk_clkevt_next,
+ .resume = nmdk_clkevt_resume,
};

/*
@@ -161,19 +181,6 @@ static struct irqaction nmdk_timer_irq = {
.dev_id = &nmdk_clkevt,
};

-void nmdk_clksrc_reset(void)
-{
- /* Disable */
- writel(0, mtu_base + MTU_CR(0));
-
- /* ClockSource: configure load and background-load, and fire it up */
- writel(nmdk_cycle, mtu_base + MTU_LR(0));
- writel(nmdk_cycle, mtu_base + MTU_BGLR(0));
-
- writel(clk_prescale | MTU_CRn_32BITS | MTU_CRn_ENA,
- mtu_base + MTU_CR(0));
-}
-
void __init nmdk_timer_init(void __iomem *base, int irq)
{
unsigned long rate;
--
1.7.0.4

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