Re: [PATCH] gpio: mvebu: fix regmap_update_bits usage

From: Gregory CLEMENT
Date: Fri Jun 09 2017 - 06:05:46 EST


Hi Thomas,

On ven., juin 09 2017, Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx> wrote:

> Hello,
>
> On Fri, 9 Jun 2017 12:03:18 +0200, Gregory CLEMENT wrote:
>
>> regmap_update_bits(mvchip->regs, GPIO_IO_CONF_OFF,
>> - BIT(pin), 1);
>> + BIT(pin), BIT(pin));
>>
>> return 0;
>> }
>> @@ -364,7 +364,7 @@ static int mvebu_gpio_direction_output(struct gpio_chip *chip, unsigned int pin,
>> mvebu_gpio_set(chip, pin, value);
>>
>> regmap_update_bits(mvchip->regs, GPIO_IO_CONF_OFF,
>> - BIT(pin), 0);
>> + BIT(pin), BIT(pin));
>
> Are you sure here? We want to clear the bit, so I guess the 0 is
> appropriate, no?

argh!

yes it was a mistake

Gregory

>
> Thomas
> --
> Thomas Petazzoni, CTO, Free Electrons
> Embedded Linux and Kernel engineering
> http://free-electrons.com

--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com