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drivers: gpio: pca_series: add api to get per-port register size 

This commit add get per-port reg size api to make it more clear to
understand the design.

Signed-off-by: Chekhov Ma <chekhov.ma@nxp.com>
This commit is contained in:
Chekhov Ma 2024-08-28 17:55:59 +08:00 committed by Alberto Escolar
parent 5253eb1692
commit d45497e4c8
1 changed files with 21 additions and 7 deletions
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28
drivers/gpio/gpio_pca_series.c
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@ -211,18 +211,16 @@ static inline uint8_t gpio_pca_series_reg_get_addr(const struct device *dev,
}
/**
* @brief get read size for register
* @brief get per-port size for register
*
* @param dev device struct
* @param reg_type value from enum gpio_pca_series_reg_type
* @return uint32_t size in bytes
* 0 if fail
*/
static inline uint32_t gpio_pca_series_reg_size(const struct device *dev,
enum gpio_pca_series_reg_type reg_type)
static inline uint32_t gpio_pca_series_reg_size_per_port(const struct device *dev,
enum gpio_pca_series_reg_type reg_type)
{
const struct gpio_pca_series_config *cfg = dev->config;
#ifdef GPIO_NXP_PCA_SERIES_DEBUG
if (reg_type >= PCA_REG_TYPE_COUNT) {
LOG_ERR("reg_type %d out of range", reg_type);
@ -250,18 +248,34 @@ static inline uint32_t gpio_pca_series_reg_size(const struct device *dev,
case PCA_REG_TYPE_1B_INTERRUPT_FALL:
#endif /* CONFIG_GPIO_PCA_SERIES_CACHE_ALL */
#endif /* CONFIG_GPIO_PCA_SERIES_INTERRUPT */
return cfg->part_cfg->port_no;
return 1;
case PCA_REG_TYPE_2B_OUTPUT_DRIVE_STRENGTH:
#ifdef CONFIG_GPIO_PCA_SERIES_INTERRUPT
case PCA_REG_TYPE_2B_INTERRUPT_EDGE:
#endif /* CONFIG_GPIO_PCA_SERIES_INTERRUPT */
return (cfg->part_cfg->port_no * 2U);
return 2;
default:
LOG_ERR("unsupported reg type %d", reg_type);
return 0; /** should never happen */
}
}
/**
* @brief get read size for register
*
* @param dev device struct
* @param reg_type value from enum gpio_pca_series_reg_type
* @return uint32_t size in bytes
* 0 if fail
*/
static inline uint32_t gpio_pca_series_reg_size(const struct device *dev,
enum gpio_pca_series_reg_type reg_type)
{
const struct gpio_pca_series_config *cfg = dev->config;
return gpio_pca_series_reg_size_per_port(dev, reg_type) * cfg->part_cfg->port_no;
}
#ifdef CONFIG_GPIO_PCA_SERIES_CACHE_ALL
/** forward declarations */
static inline uint8_t gpio_pca_series_reg_cache_offset(const struct device *dev,