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led_strip: apa102: convert to spi_dt_spec

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Convert apa102 LED strip driver to `spi_dt_spec`.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2021-08-07 13:01:52 +10:00 committed by Christopher Friedt
parent 8a4cdc33b5
commit 8d84626cab
1 changed files with 14 additions and 34 deletions
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48
drivers/led_strip/apa102.c
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@ -12,19 +12,15 @@
#include <drivers/gpio.h>
#include <sys/util.h>
struct apa102_data {
const struct device *spi;
struct spi_config cfg;
#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
struct spi_cs_control cs_ctl;
#endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */
struct apa102_config {
struct spi_dt_spec bus;
};
static int apa102_update(const struct device *dev, void *buf, size_t size)
{
struct apa102_data *data = dev->data;
static const uint8_t zeros[] = {0, 0, 0, 0};
static const uint8_t ones[] = {0xFF, 0xFF, 0xFF, 0xFF};
const struct apa102_config *config = dev->config;
static const uint8_t zeros[] = { 0, 0, 0, 0 };
static const uint8_t ones[] = { 0xFF, 0xFF, 0xFF, 0xFF };
const struct spi_buf tx_bufs[] = {
{
/* Start frame: at least 32 zeros */
@ -50,7 +46,7 @@ static int apa102_update(const struct device *dev, void *buf, size_t size)
.count = ARRAY_SIZE(tx_bufs)
};
return spi_write(data->spi, &data->cfg, &tx);
return spi_write_dt(&config->bus, &tx);
}
static int apa102_update_rgb(const struct device *dev, struct led_rgb *pixels,
@ -86,35 +82,19 @@ static int apa102_update_channels(const struct device *dev, uint8_t *channels,
static int apa102_init(const struct device *dev)
{
struct apa102_data *data = dev->data;
const struct apa102_config *config = dev->config;
data->spi = device_get_binding(DT_INST_BUS_LABEL(0));
if (!data->spi) {
if (!spi_is_ready(&config->bus)) {
return -ENODEV;
}
data->cfg.slave = DT_INST_REG_ADDR(0);
data->cfg.frequency = DT_INST_PROP(0, spi_max_frequency);
data->cfg.operation =
SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8);
#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
data->cs_ctl.gpio_dev =
device_get_binding(DT_INST_SPI_DEV_CS_GPIOS_LABEL(0));
if (!data->cs_ctl.gpio_dev) {
return -ENODEV;
}
data->cs_ctl.gpio_pin = DT_INST_SPI_DEV_CS_GPIOS_PIN(0);
data->cs_ctl.gpio_dt_flags = DT_INST_SPI_DEV_CS_GPIOS_FLAGS(0);
data->cs_ctl.delay = 0;
data->cfg.cs = &data->cs_ctl;
#endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */
return 0;
}
static struct apa102_data apa102_data_0;
static const struct apa102_config apa102_config = {
.bus = SPI_DT_SPEC_INST_GET(
0, SPI_OP_MODE_MASTER | SPI_TRANSFER_MSB | SPI_WORD_SET(8), 0)
};
static const struct led_strip_driver_api apa102_api = {
.update_rgb = apa102_update_rgb,
@ -122,5 +102,5 @@ static const struct led_strip_driver_api apa102_api = {
};
DEVICE_DT_INST_DEFINE(0, apa102_init, NULL,
&apa102_data_0, NULL, POST_KERNEL,
CONFIG_LED_STRIP_INIT_PRIORITY, &apa102_api);
NULL, &apa102_config, POST_KERNEL,
CONFIG_LED_STRIP_INIT_PRIORITY, &apa102_api);