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Date:   Thu, 8 Apr 2021 20:24:48 +0900
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     Barney Goette <barneygoette@...il.com>
Cc:     linus.walleij@...aro.org, bgolaszewski@...libre.com,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gpio: gpio-104-dio-48e: Fixed coding style issues

On Wed, Apr 07, 2021 at 09:49:00PM -0500, Barney Goette wrote:
> Fixed multiple bare uses of 'unsigned' without 'int'.
> Fixed space around '*' operator.
> Fixed function parameter alignment to opening parenthesis.
> Reported by checkpatch.
> 
> Signed-off-by: Barney Goette <barneygoette@...il.com>

Acked-by: William Breathitt Gray <vilhelm.gray@...il.com>

I am all right with this cleanup in order to pacify the checkpatch
warnings, so you may add my Acked-by line to this commit; however, I do
have a couple comments inline below.

> ---
>  drivers/gpio/gpio-104-dio-48e.c | 53 +++++++++++++++++----------------
>  1 file changed, 27 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
> index 7a9021c4fa48..38badc421c32 100644
> --- a/drivers/gpio/gpio-104-dio-48e.c
> +++ b/drivers/gpio/gpio-104-dio-48e.c
> @@ -49,15 +49,15 @@ struct dio48e_gpio {
>  	unsigned char out_state[6];
>  	unsigned char control[2];
>  	raw_spinlock_t lock;
> -	unsigned base;
> +	unsigned int base;
>  	unsigned char irq_mask;
>  };
>  
> -static int dio48e_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
> +static int dio48e_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
>  {
>  	struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip);
> -	const unsigned port = offset / 8;
> -	const unsigned mask = BIT(offset % 8);
> +	const unsigned int port = offset / 8;
> +	const unsigned int mask = BIT(offset % 8);
>  
>  	if (dio48egpio->io_state[port] & mask)
>  		return  GPIO_LINE_DIRECTION_IN;
> @@ -65,14 +65,15 @@ static int dio48e_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
>  	return GPIO_LINE_DIRECTION_OUT;
>  }
>  
> -static int dio48e_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
> +static int dio48e_gpio_direction_input(struct gpio_chip *chip, unsigned int offset)
>  {
>  	struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip);
> -	const unsigned io_port = offset / 8;
> +	const unsigned int io_port = offset / 8;
>  	const unsigned int control_port = io_port / 3;
> -	const unsigned control_addr = dio48egpio->base + 3 + control_port*4;
> -	unsigned long flags;
> -	unsigned control;
> +	const unsigned int control_addr = dio48egpio->base + 3 + control_port * 4;
> +

This empty line is not necessary and can be removed.

> +	unsigned int long flags;

This is "unsigned long" so I don't think there is a need to change it.

William Breathitt Gray

> +	unsigned int control;
>  
>  	raw_spin_lock_irqsave(&dio48egpio->lock, flags);
>  
> @@ -104,17 +105,17 @@ static int dio48e_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
>  	return 0;
>  }
>  
> -static int dio48e_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
> -	int value)
> +static int dio48e_gpio_direction_output(struct gpio_chip *chip, unsigned int offset,
> +					int value)
>  {
>  	struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip);
> -	const unsigned io_port = offset / 8;
> +	const unsigned int io_port = offset / 8;
>  	const unsigned int control_port = io_port / 3;
> -	const unsigned mask = BIT(offset % 8);
> -	const unsigned control_addr = dio48egpio->base + 3 + control_port*4;
> -	const unsigned out_port = (io_port > 2) ? io_port + 1 : io_port;
> +	const unsigned int mask = BIT(offset % 8);
> +	const unsigned int control_addr = dio48egpio->base + 3 + control_port * 4;
> +	const unsigned int out_port = (io_port > 2) ? io_port + 1 : io_port;
>  	unsigned long flags;
> -	unsigned control;
> +	unsigned int control;
>  
>  	raw_spin_lock_irqsave(&dio48egpio->lock, flags);
>  
> @@ -154,14 +155,14 @@ static int dio48e_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
>  	return 0;
>  }
>  
> -static int dio48e_gpio_get(struct gpio_chip *chip, unsigned offset)
> +static int dio48e_gpio_get(struct gpio_chip *chip, unsigned int offset)
>  {
>  	struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip);
> -	const unsigned port = offset / 8;
> -	const unsigned mask = BIT(offset % 8);
> -	const unsigned in_port = (port > 2) ? port + 1 : port;
> +	const unsigned int port = offset / 8;
> +	const unsigned int mask = BIT(offset % 8);
> +	const unsigned int in_port = (port > 2) ? port + 1 : port;
>  	unsigned long flags;
> -	unsigned port_state;
> +	unsigned int port_state;
>  
>  	raw_spin_lock_irqsave(&dio48egpio->lock, flags);
>  
> @@ -202,12 +203,12 @@ static int dio48e_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask,
>  	return 0;
>  }
>  
> -static void dio48e_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
> +static void dio48e_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
>  {
>  	struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip);
> -	const unsigned port = offset / 8;
> -	const unsigned mask = BIT(offset % 8);
> -	const unsigned out_port = (port > 2) ? port + 1 : port;
> +	const unsigned int port = offset / 8;
> +	const unsigned int mask = BIT(offset % 8);
> +	const unsigned int out_port = (port > 2) ? port + 1 : port;
>  	unsigned long flags;
>  
>  	raw_spin_lock_irqsave(&dio48egpio->lock, flags);
> @@ -306,7 +307,7 @@ static void dio48e_irq_unmask(struct irq_data *data)
>  	raw_spin_unlock_irqrestore(&dio48egpio->lock, flags);
>  }
>  
> -static int dio48e_irq_set_type(struct irq_data *data, unsigned flow_type)
> +static int dio48e_irq_set_type(struct irq_data *data, unsigned int flow_type)
>  {
>  	const unsigned long offset = irqd_to_hwirq(data);
>  
> -- 
> 2.25.1
> 

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