[PATCH 3/6] Clocksource: add nuc970 clocksource driver

Wan Zongshun
2016-07-05T07:43:03Z

On 2016?06?29? 23:25, Arnd Bergmann wrote:
> On Saturday, June 25, 2016 6:37:19 PM CEST Wan Zongshun wrote:
>> This patch is to add nuc970 clocksource driver support.
>>
>> Signed-off-by: Wan Zongshun <mcuos.com@gmail.com>
>> ---
>> .../mach-w90x900/include/mach/nuc970-regs-timer.h | 44 +++++
>> drivers/clocksource/Kconfig | 8 +
>> drivers/clocksource/Makefile | 1 +
>> drivers/clocksource/timer-nuc900.c | 207 +++++++++++++++++++++
>> 4 files changed, 260 insertions(+)
>> create mode 100644 arch/arm/mach-w90x900/include/mach/nuc970-regs-timer.h
>> create mode 100644 drivers/clocksource/timer-nuc900.c
>>
>> diff --git a/arch/arm/mach-w90x900/include/mach/nuc970-regs-timer.h b/arch/arm/mach-w90x900/include/mach/nuc970-regs-timer.h
>> new file mode 100644
>> index 0000000..43d7e8b
>> --- /dev/null
>> +++ b/arch/arm/mach-w90x900/include/mach/nuc970-regs-timer.h
>
> Please move the contents of the header file into the driver. We try to not
> have any new mach/*.h headers.

Ok, done.

>
>> +
>> +static unsigned int timer0_load;
>> +static void __iomem *tmr_base;
>> +
>> +static int nuc970_clockevent_set_oneshot(struct clock_event_device *evt)
>> +{
>> + unsigned int val;
>> +
>> + val = __raw_readl(tmr_base + REG_TMR_TCSR0);
>> + val &= ~(0x03 << 27);
>> +
>> + val |= (ONESHOT | COUNTEN | INTEN | PRESCALE);
>> +
>> + __raw_writel(val, tmr_base + REG_TMR_TCSR0);
>> + return 0;
>> +}
>> +
>
> writel() instead of __raw_writel()

Ok, so this change will apply to all drivers.

>
> Arnd
>
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