linux-kernel - Re: [PATCH v5 2/6] clocksource/drivers/arm_arch

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Date:	Mon, 30 May 2016 17:07:16 +0200
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	fu.wei@...aro.org, rjw@...ysocki.net, lenb@...nel.org,
	tglx@...utronix.de, marc.zyngier@....com, hanjun.guo@...aro.org
Cc:	linux-arm-kernel@...ts.infradead.org, linaro-acpi@...ts.linaro.org,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	rruigrok@...eaurora.org, harba@...eaurora.org, cov@...eaurora.org,
	timur@...eaurora.org, graeme.gregory@...aro.org,
	al.stone@...aro.org, jcm@...hat.com, wei@...hat.com, arnd@...db.de,
	wim@...ana.be, catalin.marinas@....com, will.deacon@....com,
	Suravee.Suthikulpanit@....com, leo.duran@....com
Subject: Re: [PATCH v5 2/6] clocksource/drivers/arm_arch_timer: Add a new enum
 for spi type

On 05/24/2016 03:30 PM, fu.wei@...aro.org wrote:
> From: Fu Wei <fu.wei@...aro.org>
>
> This patch add a new enum "spi_nr" and use it in the driver.
> Just for code's readability, no functional change.
>
> Signed-off-by: Fu Wei <fu.wei@...aro.org>
> ---
>   drivers/clocksource/arm_arch_timer.c | 4 ++--
>   include/clocksource/arm_arch_timer.h | 6 ++++++
>   2 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
> index 5d7272e..966c574 100644
> --- a/drivers/clocksource/arm_arch_timer.c
> +++ b/drivers/clocksource/arm_arch_timer.c
> @@ -826,9 +826,9 @@ static void __init arch_timer_mem_init(struct device_node *np)
>   	}
>
>   	if (arch_timer_mem_use_virtual)
> -		irq = irq_of_parse_and_map(best_frame, 1);
> +		irq = irq_of_parse_and_map(best_frame, VIRT_SPI);
>   	else
> -		irq = irq_of_parse_and_map(best_frame, 0);
> +		irq = irq_of_parse_and_map(best_frame, PHYS_SPI);
>
>   	if (!irq) {
>   		pr_err("arch_timer: Frame missing %s irq",
> diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
> index 6f06481..16dcd10 100644
> --- a/include/clocksource/arm_arch_timer.h
> +++ b/include/clocksource/arm_arch_timer.h
> @@ -45,6 +45,12 @@ enum ppi_nr {
>   	MAX_TIMER_PPI
>   };
>
> +enum spi_nr {
> +	PHYS_SPI,
> +	VIRT_SPI,
> +	MAX_TIMER_SPI
> +};

Wouldn't make sense to use the constant below instead of defining new ones ?

>   #define ARCH_TIMER_PHYS_ACCESS		0
>   #define ARCH_TIMER_VIRT_ACCESS		1
>   #define ARCH_TIMER_MEM_PHYS_ACCESS	2
>


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