diff options
Diffstat (limited to 'drivers/gpio/tegra_gpio.c')
| -rw-r--r-- | drivers/gpio/tegra_gpio.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c index 70663fc4de..88f7ef5bf0 100644 --- a/drivers/gpio/tegra_gpio.c +++ b/drivers/gpio/tegra_gpio.c @@ -39,7 +39,6 @@ struct tegra_gpio_platdata { /* Information about each port at run-time */ struct tegra_port_info { - char label[TEGRA_GPIOS_PER_PORT][GPIO_NAME_SIZE]; struct gpio_ctlr_bank *bank; int base_gpio; /* Port number for this port (0, 1,.., n-1) */ }; @@ -132,21 +131,6 @@ static void set_level(unsigned gpio, int high) writel(u, &bank->gpio_out[GPIO_PORT(gpio)]); } -static int check_reserved(struct udevice *dev, unsigned offset, - const char *func) -{ - struct tegra_port_info *state = dev_get_priv(dev); - struct gpio_dev_priv *uc_priv = dev->uclass_priv; - - if (!*state->label[offset]) { - printf("tegra_gpio: %s: error: gpio %s%d not reserved\n", - func, uc_priv->bank_name, offset); - return -EBUSY; - } - - return 0; -} - /* set GPIO pin 'gpio' as an output, with polarity 'value' */ int tegra_spl_gpio_direction_output(int gpio, int value) { @@ -171,59 +155,16 @@ static int tegra_gpio_request(struct udevice *dev, unsigned offset, { struct tegra_port_info *state = dev_get_priv(dev); - if (!label) - return -EINVAL; - - if (*state->label[offset]) - return -EBUSY; - - strncpy(state->label[offset], label, GPIO_NAME_SIZE); - state->label[offset][GPIO_NAME_SIZE - 1] = '\0'; - /* Configure as a GPIO */ set_config(state->base_gpio + offset, 1); return 0; } -static int tegra_gpio_free(struct udevice *dev, unsigned offset) -{ - struct tegra_port_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; -} - -/* read GPIO OUT value of pin 'gpio' */ -static int tegra_gpio_get_output_value(unsigned gpio) -{ - struct gpio_ctlr *ctlr = (struct gpio_ctlr *)NV_PA_GPIO_BASE; - struct gpio_ctlr_bank *bank = &ctlr->gpio_bank[GPIO_BANK(gpio)]; - int val; - - debug("gpio_get_output_value: pin = %d (port %d:bit %d)\n", - gpio, GPIO_FULLPORT(gpio), GPIO_BIT(gpio)); - - val = readl(&bank->gpio_out[GPIO_PORT(gpio)]); - - return (val >> GPIO_BIT(gpio)) & 1; -} - - /* set GPIO pin 'gpio' as an input */ static int tegra_gpio_direction_input(struct udevice *dev, unsigned offset) { struct tegra_port_info *state = dev_get_priv(dev); - int ret; - - ret = check_reserved(dev, offset, __func__); - if (ret) - return ret; /* Configure GPIO direction as input. */ set_direction(state->base_gpio + offset, 0); @@ -237,11 +178,6 @@ static int tegra_gpio_direction_output(struct udevice *dev, unsigned offset, { struct tegra_port_info *state = dev_get_priv(dev); int gpio = state->base_gpio + offset; - int ret; - - ret = check_reserved(dev, offset, __func__); - if (ret) - return ret; /* Configure GPIO output value. */ set_level(gpio, value); @@ -257,13 +193,8 @@ static int tegra_gpio_get_value(struct udevice *dev, unsigned offset) { struct tegra_port_info *state = dev_get_priv(dev); int gpio = state->base_gpio + offset; - int ret; int val; - ret = check_reserved(dev, offset, __func__); - if (ret) - return ret; - debug("%s: pin = %d (port %d:bit %d)\n", __func__, gpio, GPIO_FULLPORT(gpio), GPIO_BIT(gpio)); @@ -277,11 +208,6 @@ static int tegra_gpio_set_value(struct udevice *dev, unsigned offset, int value) { struct tegra_port_info *state = dev_get_priv(dev); int gpio = state->base_gpio + offset; - int ret; - - ret = check_reserved(dev, offset, __func__); - if (ret) - return ret; debug("gpio_set_value: pin = %d (port %d:bit %d), value = %d\n", gpio, GPIO_FULLPORT(gpio), GPIO_BIT(gpio), value); @@ -317,8 +243,6 @@ static int tegra_gpio_get_function(struct udevice *dev, unsigned offset) struct tegra_port_info *state = dev_get_priv(dev); int gpio = state->base_gpio + offset; - if (!*state->label[offset]) - return GPIOF_UNUSED; if (!get_config(gpio)) return GPIOF_FUNC; else if (get_direction(gpio)) @@ -327,50 +251,13 @@ static int tegra_gpio_get_function(struct udevice *dev, unsigned offset) return GPIOF_INPUT; } -static int tegra_gpio_get_state(struct udevice *dev, unsigned int offset, - char *buf, int bufsize) -{ - struct gpio_dev_priv *uc_priv = dev->uclass_priv; - struct tegra_port_info *state = dev_get_priv(dev); - int gpio = state->base_gpio + offset; - const char *label; - int is_output; - int is_gpio; - int size; - - label = state->label[offset]; - is_gpio = get_config(gpio); /* GPIO, not SFPIO */ - size = snprintf(buf, bufsize, "%s%d: ", - uc_priv->bank_name ? uc_priv->bank_name : "", offset); - buf += size; - bufsize -= size; - if (is_gpio) { - is_output = get_direction(gpio); - - snprintf(buf, bufsize, "%s: %d [%c]%s%s", - is_output ? "out" : " in", - is_output ? - tegra_gpio_get_output_value(gpio) : - tegra_gpio_get_value(dev, offset), - *label ? 'x' : ' ', - *label ? " " : "", - label); - } else { - snprintf(buf, bufsize, "sfpio"); - } - - return 0; -} - static const struct dm_gpio_ops gpio_tegra_ops = { .request = tegra_gpio_request, - .free = tegra_gpio_free, .direction_input = tegra_gpio_direction_input, .direction_output = tegra_gpio_direction_output, .get_value = tegra_gpio_get_value, .set_value = tegra_gpio_set_value, .get_function = tegra_gpio_get_function, - .get_state = tegra_gpio_get_state, }; /** |