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dm: gpio: exynos: Drop request()/free() in the driver

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Now that the uclass supports gpio_request/free() there is no need for the
driver to implement it too. Drop this unnecessary code.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-10-04 11:29:55 -06:00
parent 3dd2d48055
commit 6227fb87c4
1 changed files with 0 additions and 101 deletions
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101
drivers/gpio/s5p_gpio.c
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@ -33,8 +33,6 @@ DECLARE_GLOBAL_DATA_PTR;
#define RATE_MASK(gpio) (0x1 << (gpio + 16))
#define RATE_SET(gpio) (0x1 << (gpio + 16))
#define GPIO_NAME_SIZE 20
/* Platform data for each bank */
struct exynos_gpio_platdata {
struct s5p_gpio_bank *bank;
@ -43,7 +41,6 @@ struct exynos_gpio_platdata {
/* Information about each bank at run-time */
struct exynos_bank_info {
char label[GPIO_PER_BANK][GPIO_NAME_SIZE];
struct s5p_gpio_bank *bank;
};
@ -189,61 +186,10 @@ int s5p_gpio_get_pin(unsigned gpio)
/* Driver model interface */
#ifndef CONFIG_SPL_BUILD
static int exynos_gpio_get_state(struct udevice *dev, unsigned int offset,
char *buf, int bufsize)
{
struct gpio_dev_priv *uc_priv = dev->uclass_priv;
struct exynos_bank_info *state = dev_get_priv(dev);
const char *label;
bool is_output;
int size;
int cfg;
label = state->label[offset];
cfg = s5p_gpio_get_cfg_pin(state->bank, offset);
is_output = cfg == S5P_GPIO_OUTPUT;
size = snprintf(buf, bufsize, "%s%d: ",
uc_priv->bank_name ? uc_priv->bank_name : "", offset);
buf += size;
bufsize -= size;
if (is_output || cfg == S5P_GPIO_INPUT) {
snprintf(buf, bufsize, "%s: %d [%c]%s%s",
is_output ? "out" : " in",
s5p_gpio_get_value(state->bank, offset),
*label ? 'x' : ' ',
*label ? " " : "",
label);
} else {
snprintf(buf, bufsize, "sfpio");
}
return 0;
}
static int check_reserved(struct udevice *dev, unsigned offset,
const char *func)
{
struct exynos_bank_info *state = dev_get_priv(dev);
struct gpio_dev_priv *uc_priv = dev->uclass_priv;
if (!*state->label[offset]) {
printf("exynos_gpio: %s: error: gpio %s%d not reserved\n",
func, uc_priv->bank_name, offset);
return -EPERM;
}
return 0;
}
/* set GPIO pin 'gpio' as an input */
static int exynos_gpio_direction_input(struct udevice *dev, unsigned offset)
{
struct exynos_bank_info *state = dev_get_priv(dev);
int ret;
ret = check_reserved(dev, offset, __func__);
if (ret)
return ret;
/* Configure GPIO direction as input. */
s5p_gpio_cfg_pin(state->bank, offset, S5P_GPIO_INPUT);
@ -256,11 +202,6 @@ static int exynos_gpio_direction_output(struct udevice *dev, unsigned offset,
int value)
{
struct exynos_bank_info *state = dev_get_priv(dev);
int ret;
ret = check_reserved(dev, offset, __func__);
if (ret)
return ret;
/* Configure GPIO output value. */
s5p_gpio_set_value(state->bank, offset, value);
@ -275,11 +216,6 @@ static int exynos_gpio_direction_output(struct udevice *dev, unsigned offset,
static int exynos_gpio_get_value(struct udevice *dev, unsigned offset)
{
struct exynos_bank_info *state = dev_get_priv(dev);
int ret;
ret = check_reserved(dev, offset, __func__);
if (ret)
return ret;
return s5p_gpio_get_value(state->bank, offset);
}
@ -289,43 +225,11 @@ static int exynos_gpio_set_value(struct udevice *dev, unsigned offset,
int value)
{
struct exynos_bank_info *state = dev_get_priv(dev);
int ret;
ret = check_reserved(dev, offset, __func__);
if (ret)
return ret;
s5p_gpio_set_value(state->bank, offset, value);
return 0;
}
static int exynos_gpio_request(struct udevice *dev, unsigned offset,
const char *label)
{
struct exynos_bank_info *state = dev_get_priv(dev);
if (*state->label[offset])
return -EBUSY;
strncpy(state->label[offset], label, GPIO_NAME_SIZE);
state->label[offset][GPIO_NAME_SIZE - 1] = '\0';
return 0;
}
static int exynos_gpio_free(struct udevice *dev, unsigned offset)
{
struct exynos_bank_info *state = dev_get_priv(dev);
int ret;
ret = check_reserved(dev, offset, __func__);
if (ret)
return ret;
state->label[offset][0] = '\0';
return 0;
}
#endif /* nCONFIG_SPL_BUILD */
/*
@ -362,8 +266,6 @@ static int exynos_gpio_get_function(struct udevice *dev, unsigned offset)
struct exynos_bank_info *state = dev_get_priv(dev);
int cfg;
if (!*state->label[offset])
return GPIOF_UNUSED;
cfg = s5p_gpio_get_cfg_pin(state->bank, offset);
if (cfg == S5P_GPIO_OUTPUT)
return GPIOF_OUTPUT;
@ -374,14 +276,11 @@ static int exynos_gpio_get_function(struct udevice *dev, unsigned offset)
}
static const struct dm_gpio_ops gpio_exynos_ops = {
.request = exynos_gpio_request,
.free = exynos_gpio_free,
.direction_input = exynos_gpio_direction_input,
.direction_output = exynos_gpio_direction_output,
.get_value = exynos_gpio_get_value,
.set_value = exynos_gpio_set_value,
.get_function = exynos_gpio_get_function,
.get_state = exynos_gpio_get_state,
};
static int gpio_exynos_probe(struct udevice *dev)