linux-kernel - Re: [Resend PATCH] gpio/davinci: add interrupt support for GPIOs 16-31

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Date:	Thu, 2 Jul 2015 16:03:30 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	Grygorii Strashko <grygorii.strashko@...com>,
	Vitaly Andrianov <vitalya@...com>, <linus.walleij@...aro.org>,
	<gnurou@...il.com>, <linux-gpio@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [Resend PATCH] gpio/davinci: add interrupt support for GPIOs
 16-31

On Thursday 02 July 2015 03:43 PM, Grygorii Strashko wrote:
> On 07/01/2015 08:41 PM, Vitaly Andrianov wrote:
>> Interrupts for GPIOs 16 through 31 are enabled by bit 1 in the
>> "binten" register (offset 8). Previous versions of GPIO only
>> used bit 0, which enables GPIO 0-15 interrupts.
> 
> Cc: Sekhar Nori
> 
>>
>> Signed-off-by: Vitaly Andrianov <vitalya@...com>
> 
> Reviewed-by: Grygorii Strashko <grygorii.strashko@...com>
> 
>> ---
>> I posted this patch on 06/18/15 and didn't get any response.
>> Please, could you review the patch.
>>
>>   drivers/gpio/gpio-davinci.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
>> index c5e05c8..c90629f 100644
>> --- a/drivers/gpio/gpio-davinci.c
>> +++ b/drivers/gpio/gpio-davinci.c
>> @@ -546,6 +546,8 @@ static int davinci_gpio_irq_setup(struct
>> platform_device *pdev)
>>           chips[0].gpio_irq = bank_irq;
>>           chips[0].gpio_unbanked = pdata->gpio_unbanked;
>>           binten = BIT(0);
>> +        if (pdata->gpio_unbanked > 16)
>> +            binten |= BIT(1);

Or

	binten = GENMASK(pdata->gpio_unbanked / 16, 0);

?

Thanks,
Sekhar

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