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Subject: Re: [PATCH v4 7/7] irqchip: qcom-pdc: Reset all pdc interrupts during
 init
To:     Felipe Balbi <balbi@kernel.org>, bjorn.andersson@linaro.org,
        maz@kernel.org, linus.walleij@linaro.org, swboyd@chromium.org,
        evgreen@chromium.org, mka@chromium.org
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        linux-gpio@vger.kernel.org, agross@kernel.org, tglx@linutronix.de,
        jason@lakedaemon.net, dianders@chromium.org, rnayak@codeaurora.org,
        ilina@codeaurora.org, lsrao@codeaurora.org
References: <1597058460-16211-1-git-send-email-mkshah@codeaurora.org>
 <1597058460-16211-8-git-send-email-mkshah@codeaurora.org>
 <87imdqpusi.fsf@kernel.org>
From:   Maulik Shah <mkshah@codeaurora.org>
Message-ID: <59e3398e-ec95-0820-c317-156841a46ae7@codeaurora.org>
Date:   Thu, 13 Aug 2020 12:51:39 +0530
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Hi,

On 8/10/2020 5:39 PM, Felipe Balbi wrote:
> Maulik Shah <mkshah@codeaurora.org> writes:
>
>> Clear previous kernel's configuration during init by resetting
>> interrupts in enable bank to zero.
>>
>> Suggested-by: Stephen Boyd <swboyd@chromium.org>
>> Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
>> ---
>>   drivers/irqchip/qcom-pdc.c | 12 +++++++++++-
>>   1 file changed, 11 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c
>> index dfcdfc5..80e0dfb 100644
>> --- a/drivers/irqchip/qcom-pdc.c
>> +++ b/drivers/irqchip/qcom-pdc.c
>> @@ -389,7 +389,8 @@ static const struct irq_domain_ops qcom_pdc_gpio_ops = {
>>   
>>   static int pdc_setup_pin_mapping(struct device_node *np)
>>   {
>> -	int ret, n;
>> +	int ret, n, i;
>> +	u32 irq_index, reg_index, val;
>>   
>>   	n = of_property_count_elems_of_size(np, "qcom,pdc-ranges", sizeof(u32));
>>   	if (n <= 0 || n % 3)
>> @@ -418,6 +419,15 @@ static int pdc_setup_pin_mapping(struct device_node *np)
>>   						 &pdc_region[n].cnt);
>>   		if (ret)
>>   			return ret;
>> +
>> +		for (i = pdc_region[n].pin_base; i < pdc_region[n].pin_base +
>> +						 pdc_region[n].cnt; i++) {
> how about making the for loop slightly easier to read by moving pin_base
> inside the loop?
>
> 	for (i = 0; i < pdc_region[n].cnt; i++) {
>          	reg_index = (i + pdc_region[n].pin_base) >> 5;
>          	irq_index = (i + pdc_region[n].pin_base) & 0x1f;
>
> 		[...]
>          }

Sure, i will move pin_base inside for loop in v5.

Thanks,
Maulik

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