Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1662230

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

From Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Newsgroups linux.kernel
Subject Re: [PATCH] gpio: mvebu: fix regmap_update_bits usage
Date 2017-06-09 12:10 +0200
Message-ID <tQp1E-dV-11@gated-at.bofh.it> (permalink)
References <tQp1E-dV-1@gated-at.bofh.it>
Organization Free Electrons

Show all headers | View raw


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?

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

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

[PATCH] gpio: mvebu: fix regmap_update_bits usage Gregory CLEMENT <gregory.clement@free-electrons.com> - 2017-06-09 12:10 +0200
  Re: [PATCH] gpio: mvebu: fix regmap_update_bits usage Gregory CLEMENT <gregory.clement@free-electrons.com> - 2017-06-09 12:10 +0200
  Re: [PATCH] gpio: mvebu: fix regmap_update_bits usage Thomas Petazzoni <thomas.petazzoni@free-electrons.com> - 2017-06-09 12:10 +0200

csiph-web