From c7cff54d5926e3f419c23eff2ebaf6f5e12da05d Mon Sep 17 00:00:00 2001 From: Zhiwu Song Date: Mon, 5 May 2014 19:30:04 +0800 Subject: [PATCH] clocksource:sirf: remove the hardcode for the clk of timers Nobody want to know the connection between io clk and timer clk, so exposing this information to timer module is not reasonable. this patch moves to define the timers' clk in dt. Signed-off-by: Zhiwu Song Signed-off-by: Barry Song --- arch/arm/boot/dts/atlas6.dtsi | 1 + arch/arm/boot/dts/prima2.dtsi | 1 + drivers/clocksource/timer-marco.c | 8 +++----- drivers/clocksource/timer-prima2.c | 5 +---- 4 files changed, 6 insertions(+), 9 deletions(-) diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi index 9d72674..317bc59 100644 --- a/arch/arm/boot/dts/atlas6.dtsi +++ b/arch/arm/boot/dts/atlas6.dtsi @@ -195,6 +195,7 @@ compatible = "sirf,prima2-tick"; reg = <0xb0020000 0x1000>; interrupts = <0>; + clocks = <&clks 11>; }; nand@b0030000 { diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi index 1e82571..7e7d884 100644 --- a/arch/arm/boot/dts/prima2.dtsi +++ b/arch/arm/boot/dts/prima2.dtsi @@ -201,6 +201,7 @@ compatible = "sirf,prima2-tick"; reg = <0xb0020000 0x1000>; interrupts = <0>; + clocks = <&clks 11>; }; nand@b0030000 { diff --git a/drivers/clocksource/timer-marco.c b/drivers/clocksource/timer-marco.c index b52e1c0..571d109 100644 --- a/drivers/clocksource/timer-marco.c +++ b/drivers/clocksource/timer-marco.c @@ -252,15 +252,13 @@ static void __init sirfsoc_clockevent_init(void) } /* initialize the kernel jiffy timer source */ -static void __init sirfsoc_marco_timer_init(void) +static void __init sirfsoc_marco_timer_init(struct device_node *np) { unsigned long rate; u32 timer_div; struct clk *clk; - /* timer's input clock is io clock */ - clk = clk_get_sys("io", NULL); - + clk = of_clk_get(np, 0); BUG_ON(IS_ERR(clk)); rate = clk_get_rate(clk); @@ -303,6 +301,6 @@ static void __init sirfsoc_of_timer_init(struct device_node *np) if (!sirfsoc_timer1_irq.irq) panic("No irq passed for timer1 via DT\n"); - sirfsoc_marco_timer_init(); + sirfsoc_marco_timer_init(np); } CLOCKSOURCE_OF_DECLARE(sirfsoc_marco_timer, "sirf,marco-tick", sirfsoc_of_timer_init ); diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c index 84fdb15..a722aac 100644 --- a/drivers/clocksource/timer-prima2.c +++ b/drivers/clocksource/timer-prima2.c @@ -198,11 +198,8 @@ static void __init sirfsoc_prima2_timer_init(struct device_node *np) unsigned long rate; struct clk *clk; - /* timer's input clock is io clock */ - clk = clk_get_sys("io", NULL); - + clk = of_clk_get(np, 0); BUG_ON(IS_ERR(clk)); - rate = clk_get_rate(clk); BUG_ON(rate < PRIMA2_CLOCK_FREQ); -- 2.7.4