Re: [PATCH 07/27] irqchip: Declare cortex-a7's irqchip to initialize gic from dt

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On 10-Apr-2014, at 3:34 pm, Marc Zyngier <marc.zyngier@xxxxxxx> wrote:

> On Thu, Apr 10 2014 at 10:28:24 am BST, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote:
>> This patch declare coretex-a7's irqchip to initialze gic from dt
>> with "arm,cortex-a7-gic" data.
>> 
>> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
>> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
>> ---
>> drivers/irqchip/irq-gic.c | 1 +
>> 1 file changed, 1 insertion(+)
>> 
>> diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
>> index 4300b66..8e906e4 100644
>> --- a/drivers/irqchip/irq-gic.c
>> +++ b/drivers/irqchip/irq-gic.c
>> @@ -1069,6 +1069,7 @@ gic_of_init(struct device_node *node, struct device_node *parent)
>> }
>> IRQCHIP_DECLARE(cortex_a15_gic, "arm,cortex-a15-gic", gic_of_init);
>> IRQCHIP_DECLARE(cortex_a9_gic, "arm,cortex-a9-gic", gic_of_init);
>> +IRQCHIP_DECLARE(cortex_a7_gic, "arm,cortex-a7-gic", gic_of_init);
>> IRQCHIP_DECLARE(msm_8660_qgic, "qcom,msm-8660-qgic", gic_of_init);
>> IRQCHIP_DECLARE(msm_qgic2, "qcom,msm-qgic2", gic_of_init);
> 
> Frankly, this patch adds no value. Are we going to add
> "arm,cortex-a12-gic", "arm,cortex-a17-gic", "arm,cortex-a53-gic",
> "arm,cortex-a57-gic"? And that's just to mention the ARM Ltd cores...
> 
> Instead, how about defining a generic "arm,gic" property, and mandate
> that new DT files are using that? We can always use a more precise
> compatible for quirks.
> 

How about keeping it simple and tied to arm gic versions
arm,gicv1, arm,gicv2, arm,gicv2ve

> Mark, what do you think? I think this has been discussed in the past
> already.
> 
> 	M.
> -- 
> Jazz is not dead. It just smells funny.
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