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drivers: display: ili9xxx: use gpio_dt_spec

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Use the recently introduced struct gpio_dt_spec to store GPIO
information and operate with them.

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
This commit is contained in:
Gerard Marull-Paretas 2021-07-09 20:05:45 +02:00 • committed by Kumar Gala
commit 51e53ee73f
2 changed files with 21 additions and 42 deletions
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55
drivers/display/display_ili9xxx.c
View file

@ -17,8 +17,6 @@
LOG_MODULE_REGISTER(display_ili9xxx, CONFIG_DISPLAY_LOG_LEVEL);
struct ili9xxx_data {
const struct device *reset_gpio;
const struct device *command_data_gpio;
const struct device *spi_dev;
struct spi_config spi_config;
struct spi_cs_control cs_ctrl;
@ -42,8 +40,7 @@ int ili9xxx_transmit(const struct device *dev, uint8_t cmd, const void *tx_data,
tx_buf.buf = &cmd;
tx_buf.len = 1U;
gpio_pin_set(data->command_data_gpio, config->cmd_data_pin,
ILI9XXX_CMD);
gpio_pin_set_dt(&config->cmd_data, ILI9XXX_CMD);
r = spi_write(data->spi_dev, &data->spi_config, &tx_bufs);
if (r < 0) {
return r;
@ -54,8 +51,7 @@ int ili9xxx_transmit(const struct device *dev, uint8_t cmd, const void *tx_data,
tx_buf.buf = (void *)tx_data;
tx_buf.len = tx_len;
gpio_pin_set(data->command_data_gpio, config->cmd_data_pin,
ILI9XXX_DATA);
gpio_pin_set_dt(&config->cmd_data, ILI9XXX_DATA);
r = spi_write(data->spi_dev, &data->spi_config, &tx_bufs);
if (r < 0) {
return r;
@ -83,15 +79,14 @@ static void ili9xxx_hw_reset(const struct device *dev)
{
const struct ili9xxx_config *config =
(struct ili9xxx_config *)dev->config;
struct ili9xxx_data *data = (struct ili9xxx_data *)dev->data;
if (data->reset_gpio == NULL) {
if (config->reset.port == NULL) {
return;
}
gpio_pin_set(data->reset_gpio, config->reset_pin, 1);
gpio_pin_set_dt(&config->reset, 1);
k_sleep(K_MSEC(ILI9XXX_RESET_PULSE_TIME));
gpio_pin_set(data->reset_gpio, config->reset_pin, 0);
gpio_pin_set_dt(&config->reset, 0);
k_sleep(K_MSEC(ILI9XXX_RESET_WAIT_TIME));
}
@ -384,25 +379,24 @@ static int ili9xxx_init(const struct device *dev)
data->spi_config.cs = &data->cs_ctrl;
}
data->command_data_gpio = device_get_binding(config->cmd_data_label);
if (data->command_data_gpio == NULL) {
LOG_ERR("Could not get command/data GPIO port %s",
config->cmd_data_label);
if (!device_is_ready(config->cmd_data.port)) {
LOG_ERR("Command/Data GPIO device not ready");
return -ENODEV;
}
r = gpio_pin_configure(data->command_data_gpio, config->cmd_data_pin,
GPIO_OUTPUT | config->cmd_data_flags);
r = gpio_pin_configure_dt(&config->cmd_data, GPIO_OUTPUT);
if (r < 0) {
LOG_ERR("Could not configure command/data GPIO (%d)", r);
return r;
}
data->reset_gpio = device_get_binding(config->reset_label);
if (data->reset_gpio != NULL) {
r = gpio_pin_configure(data->reset_gpio, config->reset_pin,
GPIO_OUTPUT_INACTIVE |
config->reset_flags);
if (config->reset.port != NULL) {
if (!device_is_ready(config->reset.port)) {
LOG_ERR("Reset GPIO device not ready");
return -ENODEV;
}
r = gpio_pin_configure_dt(&config->reset, GPIO_OUTPUT_INACTIVE);
if (r < 0) {
LOG_ERR("Could not configure reset GPIO (%d)", r);
return r;
@ -469,21 +463,10 @@ static const struct display_driver_api ili9xxx_api = {
.spi_cs_flags = UTIL_AND( \
DT_SPI_DEV_HAS_CS_GPIOS(INST_DT_ILI9XXX(n, t)), \
DT_SPI_DEV_CS_GPIOS_FLAGS(INST_DT_ILI9XXX(n, t))), \
.cmd_data_label = \
DT_GPIO_LABEL(INST_DT_ILI9XXX(n, t), cmd_data_gpios), \
.cmd_data_pin = \
DT_GPIO_PIN(INST_DT_ILI9XXX(n, t), cmd_data_gpios), \
.cmd_data_flags = \
DT_GPIO_FLAGS(INST_DT_ILI9XXX(n, t), cmd_data_gpios), \
.reset_label = UTIL_AND( \
DT_NODE_HAS_PROP(INST_DT_ILI9XXX(n, t), reset_gpios), \
DT_GPIO_LABEL(INST_DT_ILI9XXX(n, t), reset_gpios)), \
.reset_pin = UTIL_AND( \
DT_NODE_HAS_PROP(INST_DT_ILI9XXX(n, t), reset_gpios), \
DT_GPIO_PIN(INST_DT_ILI9XXX(n, t), reset_gpios)), \
.reset_flags = UTIL_AND( \
DT_NODE_HAS_PROP(INST_DT_ILI9XXX(n, t), reset_gpios), \
DT_GPIO_FLAGS(INST_DT_ILI9XXX(n, t), reset_gpios)), \
.cmd_data = GPIO_DT_SPEC_GET(INST_DT_ILI9XXX(n, t), \
cmd_data_gpios), \
.reset = GPIO_DT_SPEC_GET_OR(INST_DT_ILI9XXX(n, t), \
reset_gpios, {0}), \
.pixel_format = DT_PROP(INST_DT_ILI9XXX(n, t), pixel_format), \
.rotation = DT_PROP(INST_DT_ILI9XXX(n, t), rotation), \
.x_resolution = ILI##t##_X_RES, \

8
drivers/display/display_ili9xxx.h
View file

@ -60,12 +60,8 @@ struct ili9xxx_config {
const char *spi_cs_label;
gpio_pin_t spi_cs_pin;
gpio_dt_flags_t spi_cs_flags;
const char *cmd_data_label;
gpio_pin_t cmd_data_pin;
gpio_dt_flags_t cmd_data_flags;
const char *reset_label;
gpio_pin_t reset_pin;
gpio_dt_flags_t reset_flags;
struct gpio_dt_spec cmd_data;
struct gpio_dt_spec reset;
uint8_t pixel_format;
uint16_t rotation;
uint16_t x_resolution;