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gpio: lpc32xx: use gpiochip data pointer 

This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().

Cc: Roland Stigge <stigge@antcom.de>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2015-12-07 09:18:23 +01:00
parent d3de31d467
commit a9bc97e43f
1 changed files with 14 additions and 19 deletions
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33
drivers/gpio/gpio-lpc32xx.c
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@ -165,12 +165,6 @@ struct lpc32xx_gpio_chip {
struct gpio_regs *gpio_grp;
};
static inline struct lpc32xx_gpio_chip *to_lpc32xx_gpio(
struct gpio_chip *gpc)
{
return container_of(gpc, struct lpc32xx_gpio_chip, chip);
}
static void __set_gpio_dir_p012(struct lpc32xx_gpio_chip *group,
unsigned pin, int input)
{
@ -261,7 +255,7 @@ static int __get_gpo_state_p3(struct lpc32xx_gpio_chip *group,
static int lpc32xx_gpio_dir_input_p012(struct gpio_chip *chip,
unsigned pin)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpio_dir_p012(group, pin, 1);
@ -271,7 +265,7 @@ static int lpc32xx_gpio_dir_input_p012(struct gpio_chip *chip,
static int lpc32xx_gpio_dir_input_p3(struct gpio_chip *chip,
unsigned pin)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpio_dir_p3(group, pin, 1);
@ -286,21 +280,21 @@ static int lpc32xx_gpio_dir_in_always(struct gpio_chip *chip,
static int lpc32xx_gpio_get_value_p012(struct gpio_chip *chip, unsigned pin)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
return !!__get_gpio_state_p012(group, pin);
}
static int lpc32xx_gpio_get_value_p3(struct gpio_chip *chip, unsigned pin)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
return !!__get_gpio_state_p3(group, pin);
}
static int lpc32xx_gpi_get_value(struct gpio_chip *chip, unsigned pin)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
return !!__get_gpi_state_p3(group, pin);
}
@ -308,7 +302,7 @@ static int lpc32xx_gpi_get_value(struct gpio_chip *chip, unsigned pin)
static int lpc32xx_gpio_dir_output_p012(struct gpio_chip *chip, unsigned pin,
int value)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpio_level_p012(group, pin, value);
__set_gpio_dir_p012(group, pin, 0);
@ -319,7 +313,7 @@ static int lpc32xx_gpio_dir_output_p012(struct gpio_chip *chip, unsigned pin,
static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
int value)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpio_level_p3(group, pin, value);
__set_gpio_dir_p3(group, pin, 0);
@ -330,7 +324,7 @@ static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
static int lpc32xx_gpio_dir_out_always(struct gpio_chip *chip, unsigned pin,
int value)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpo_level_p3(group, pin, value);
return 0;
@ -339,7 +333,7 @@ static int lpc32xx_gpio_dir_out_always(struct gpio_chip *chip, unsigned pin,
static void lpc32xx_gpio_set_value_p012(struct gpio_chip *chip, unsigned pin,
int value)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpio_level_p012(group, pin, value);
}
@ -347,7 +341,7 @@ static void lpc32xx_gpio_set_value_p012(struct gpio_chip *chip, unsigned pin,
static void lpc32xx_gpio_set_value_p3(struct gpio_chip *chip, unsigned pin,
int value)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpio_level_p3(group, pin, value);
}
@ -355,14 +349,14 @@ static void lpc32xx_gpio_set_value_p3(struct gpio_chip *chip, unsigned pin,
static void lpc32xx_gpo_set_value(struct gpio_chip *chip, unsigned pin,
int value)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
__set_gpo_level_p3(group, pin, value);
}
static int lpc32xx_gpo_get_value(struct gpio_chip *chip, unsigned pin)
{
struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
struct lpc32xx_gpio_chip *group = gpiochip_get_data(chip);
return !!__get_gpo_state_p3(group, pin);
}
@ -553,7 +547,8 @@ static int lpc32xx_gpio_probe(struct platform_device *pdev)
lpc32xx_gpiochip[i].chip.of_gpio_n_cells = 3;
lpc32xx_gpiochip[i].chip.of_node = pdev->dev.of_node;
}
gpiochip_add(&lpc32xx_gpiochip[i].chip);
gpiochip_add_data(&lpc32xx_gpiochip[i].chip,
&lpc32xx_gpiochip[i]);
}
return 0;