diff options
| author | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2012-11-17 15:22:25 +0100 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2012-11-20 14:46:49 +0100 |
| commit | 307c2bf467e3682c6df1b8186365224fd2d581d3 (patch) | |
| tree | e746efe036e9e5bf44599239f3edf5f1106d5b18 | |
| parent | clk: armada-370-xp: add support for clock framework (diff) | |
| download | linux-307c2bf467e3682c6df1b8186365224fd2d581d3.tar.xz linux-307c2bf467e3682c6df1b8186365224fd2d581d3.zip | |
clocksource: convert time-armada-370-xp to clk framework
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by Gregory CLEMENT <gregory.clement@free-electrons.com>
| -rw-r--r-- | Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/armada-370-db.dts | 4 | ||||
| -rw-r--r-- | arch/arm/boot/dts/armada-370-xp.dtsi | 1 | ||||
| -rw-r--r-- | drivers/clocksource/time-armada-370-xp.c | 11 |
4 files changed, 8 insertions, 9 deletions
diff --git a/Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt b/Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt index 8b6ea2267c94..64830118b013 100644 --- a/Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt +++ b/Documentation/devicetree/bindings/arm/armada-370-xp-timer.txt @@ -5,6 +5,7 @@ Required properties: - compatible: Should be "marvell,armada-370-xp-timer" - interrupts: Should contain the list of Global Timer interrupts - reg: Should contain the base address of the Global Timer registers +- clocks: clock driving the timer hardware Optional properties: - marvell,timer-25Mhz: Tells whether the Global timer supports the 25 diff --git a/arch/arm/boot/dts/armada-370-db.dts b/arch/arm/boot/dts/armada-370-db.dts index fffd5c2a3041..4a31b0396623 100644 --- a/arch/arm/boot/dts/armada-370-db.dts +++ b/arch/arm/boot/dts/armada-370-db.dts @@ -34,9 +34,5 @@ clock-frequency = <200000000>; status = "okay"; }; - timer@d0020300 { - clock-frequency = <600000000>; - status = "okay"; - }; }; }; diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi index 16cc82cdaa81..94b4b9e03571 100644 --- a/arch/arm/boot/dts/armada-370-xp.dtsi +++ b/arch/arm/boot/dts/armada-370-xp.dtsi @@ -62,6 +62,7 @@ compatible = "marvell,armada-370-xp-timer"; reg = <0xd0020300 0x30>; interrupts = <37>, <38>, <39>, <40>; + clocks = <&coreclk 2>; }; addr-decoding@d0020000 { diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c index 4674f94957cd..a4605fd7e303 100644 --- a/drivers/clocksource/time-armada-370-xp.c +++ b/drivers/clocksource/time-armada-370-xp.c @@ -18,6 +18,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/kernel.h> +#include <linux/clk.h> #include <linux/timer.h> #include <linux/clockchips.h> #include <linux/interrupt.h> @@ -167,7 +168,6 @@ void __init armada_370_xp_timer_init(void) u32 u; struct device_node *np; unsigned int timer_clk; - int ret; np = of_find_compatible_node(NULL, NULL, "marvell,armada-370-xp-timer"); timer_base = of_iomap(np, 0); WARN_ON(!timer_base); @@ -179,13 +179,14 @@ void __init armada_370_xp_timer_init(void) timer_base + TIMER_CTRL_OFF); timer_clk = 25000000; } else { - u32 clk = 0; - ret = of_property_read_u32(np, "clock-frequency", &clk); - WARN_ON(!clk || ret < 0); + unsigned long rate = 0; + struct clk *clk = of_clk_get(np, 0); + WARN_ON(IS_ERR(clk)); + rate = clk_get_rate(clk); u = readl(timer_base + TIMER_CTRL_OFF); writel(u & ~(TIMER0_25MHZ | TIMER1_25MHZ), timer_base + TIMER_CTRL_OFF); - timer_clk = clk / TIMER_DIVIDER; + timer_clk = rate / TIMER_DIVIDER; } /* We use timer 0 as clocksource, and timer 1 for |