linux-kernel - Re: [PATCH 5/5] gpio: davinci: Move driver local definitions to driver

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Date:   Wed, 19 Sep 2018 10:32:46 +0530
From:   Keerthy <j-keerthy@...com>
To:     "Andrew F. Davis" <afd@...com>, Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
CC:     <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 5/5] gpio: davinci: Move driver local definitions to
 driver



On Saturday 01 September 2018 12:43 AM, Andrew F. Davis wrote:
> These defines, structs and inline functions are used only internally by
> the driver, they do not belong in platform_data. Move them.

Tested for gpio interrupts on k2g and da850-lcdk

Tested-by: Keerthy <j-keerthy@...com>
Acked-by: Keerthy <j-keerthy@...com>

> 
> Signed-off-by: Andrew F. Davis <afd@...com>
> ---
>  drivers/gpio/gpio-davinci.c                | 28 ++++++++++++++++++++++
>  include/linux/platform_data/gpio-davinci.h | 28 ----------------------
>  2 files changed, 28 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
> index 121a7948f785..5c1564fcc24e 100644
> --- a/drivers/gpio/gpio-davinci.c
> +++ b/drivers/gpio/gpio-davinci.c
> @@ -9,6 +9,7 @@
>   * the Free Software Foundation; either version 2 of the License, or
>   * (at your option) any later version.
>   */
> +
>  #include <linux/gpio/driver.h>
>  #include <linux/errno.h>
>  #include <linux/kernel.h>
> @@ -24,6 +25,12 @@
>  #include <linux/platform_device.h>
>  #include <linux/platform_data/gpio-davinci.h>
>  #include <linux/irqchip/chained_irq.h>
> +#include <linux/spinlock.h>
> +
> +#include <asm-generic/gpio.h>
> +
> +#define MAX_REGS_BANKS 5
> +#define MAX_INT_PER_BANK 32
>  
>  struct davinci_gpio_regs {
>  	u32	dir;
> @@ -45,6 +52,27 @@ typedef struct irq_chip *(*gpio_get_irq_chip_cb_t)(unsigned int irq);
>  static void __iomem *gpio_base;
>  static unsigned int offset_array[5] = {0x10, 0x38, 0x60, 0x88, 0xb0};
>  
> +struct davinci_gpio_irq_data {
> +	void __iomem			*regs;
> +	struct davinci_gpio_controller	*chip;
> +	int				bank_num;
> +};
> +
> +struct davinci_gpio_controller {
> +	struct gpio_chip	chip;
> +	struct irq_domain	*irq_domain;
> +	/* Serialize access to GPIO registers */
> +	spinlock_t		lock;
> +	void __iomem		*regs[MAX_REGS_BANKS];
> +	int			gpio_unbanked;
> +	int			irqs[MAX_INT_PER_BANK];
> +};
> +
> +static inline u32 __gpio_mask(unsigned gpio)
> +{
> +	return 1 << (gpio % 32);
> +}
> +
>  static inline struct davinci_gpio_regs __iomem *irq2regs(struct irq_data *d)
>  {
>  	struct davinci_gpio_regs __iomem *g;
> diff --git a/include/linux/platform_data/gpio-davinci.h b/include/linux/platform_data/gpio-davinci.h
> index 47695b342883..f92a47e18034 100644
> --- a/include/linux/platform_data/gpio-davinci.h
> +++ b/include/linux/platform_data/gpio-davinci.h
> @@ -16,40 +16,12 @@
>  #ifndef __DAVINCI_GPIO_PLATFORM_H
>  #define __DAVINCI_GPIO_PLATFORM_H
>  
> -#include <linux/io.h>
> -#include <linux/spinlock.h>
> -
> -#include <asm-generic/gpio.h>
> -
> -#define MAX_REGS_BANKS		5
> -#define MAX_INT_PER_BANK 32
> -
>  struct davinci_gpio_platform_data {
>  	u32	ngpio;
>  	u32	gpio_unbanked;
>  };
>  
> -struct davinci_gpio_irq_data {
> -	void __iomem			*regs;
> -	struct davinci_gpio_controller	*chip;
> -	int				bank_num;
> -};
> -
> -struct davinci_gpio_controller {
> -	struct gpio_chip	chip;
> -	struct irq_domain	*irq_domain;
> -	/* Serialize access to GPIO registers */
> -	spinlock_t		lock;
> -	void __iomem		*regs[MAX_REGS_BANKS];
> -	int			gpio_unbanked;
> -	int			irqs[MAX_INT_PER_BANK];
> -};
> -
>  /* Convert GPIO signal to GPIO pin number */
>  #define GPIO_TO_PIN(bank, gpio)	(16 * (bank) + (gpio))
>  
> -static inline u32 __gpio_mask(unsigned gpio)
> -{
> -	return 1 << (gpio % 32);
> -}
>  #endif
>