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drivers: gpio_pca95xx: add support for pin validation

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Add the common config structure as a prefix of the driver-specific
config structure and use the devicetree GPIO pin counts to initialize
it.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit is contained in:
Peter Bigot 2019-12-11 11:03:58 -06:00 • committed by Carles Cufí
commit 71873c8a16
1 changed files with 6 additions and 0 deletions
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6
drivers/gpio/gpio_pca95xx.c
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@ -52,6 +52,9 @@ LOG_MODULE_REGISTER(gpio_pca95xx);
/** Configuration data */ /** Configuration data */
struct gpio_pca95xx_config { struct gpio_pca95xx_config {
/* gpio_driver_config needs to be first */
struct gpio_driver_config common;
/** The master I2C device's name */ /** The master I2C device's name */
const char * const i2c_master_dev_name; const char * const i2c_master_dev_name;
@ -589,6 +592,9 @@ static int gpio_pca95xx_init(struct device *dev)
#define GPIO_PCA95XX_DEVICE_INSTANCE(inst) \ #define GPIO_PCA95XX_DEVICE_INSTANCE(inst) \
static const struct gpio_pca95xx_config gpio_pca95xx_##inst##_cfg = { \ static const struct gpio_pca95xx_config gpio_pca95xx_##inst##_cfg = { \
.common = { \
.port_pin_mask = GPIO_PORT_PIN_MASK_FROM_NGPIOS(DT_INST_##inst##_NXP_PCA95XX_NGPIOS), \
}, \
.i2c_master_dev_name = DT_INST_##inst##_NXP_PCA95XX_BUS_NAME, \ .i2c_master_dev_name = DT_INST_##inst##_NXP_PCA95XX_BUS_NAME, \
.i2c_slave_addr = DT_INST_##inst##_NXP_PCA95XX_BASE_ADDRESS, \ .i2c_slave_addr = DT_INST_##inst##_NXP_PCA95XX_BASE_ADDRESS, \
.capabilities = \ .capabilities = \