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led_strip: lpd880x: update to spi_dt_spec

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Convert lpd880x to use `spi_dt_spec`.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2021-08-07 13:17:32 +10:00 committed by Christopher Friedt
parent 7065aec5e2
commit 941a1af0e3
1 changed files with 16 additions and 23 deletions
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39
drivers/led_strip/lpd880x.c
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@ -30,19 +30,18 @@ LOG_MODULE_REGISTER(lpd880x);
* - mode 0 (the default), 8 bit, MSB first, one-line SPI
* - no shenanigans (no CS hold, release device lock, not an EEPROM)
*/
#define LPD880X_SPI_OPERATION (SPI_OP_MODE_MASTER | \
SPI_TRANSFER_MSB | \
SPI_WORD_SET(8) | \
#define LPD880X_SPI_OPERATION (SPI_OP_MODE_MASTER | \
SPI_TRANSFER_MSB | \
SPI_WORD_SET(8) | \
SPI_LINES_SINGLE)
struct lpd880x_data {
const struct device *spi;
struct spi_config config;
struct lpd880x_config {
struct spi_dt_spec bus;
};
static int lpd880x_update(const struct device *dev, void *data, size_t size)
{
struct lpd880x_data *drv_data = dev->data;
const struct lpd880x_config *config = dev->config;
/*
* Per the AdaFruit reverse engineering notes on the protocol,
* a zero byte propagates through at most 32 LED driver ICs.
@ -77,7 +76,7 @@ static int lpd880x_update(const struct device *dev, void *data, size_t size)
(void)memset(reset_buf, 0x00, reset_size);
rc = spi_write(drv_data->spi, &drv_data->config, &tx);
rc = spi_write_dt(&config->bus, &tx);
if (rc) {
LOG_ERR("can't update strip: %d", rc);
}
@ -129,25 +128,19 @@ static int lpd880x_strip_update_channels(const struct device *dev,
static int lpd880x_strip_init(const struct device *dev)
{
struct lpd880x_data *data = dev->data;
struct spi_config *config = &data->config;
const struct lpd880x_config *config = dev->config;
data->spi = device_get_binding(DT_INST_BUS_LABEL(0));
if (!data->spi) {
LOG_ERR("SPI device %s not found",
DT_INST_BUS_LABEL(0));
if (!spi_is_ready(&config->bus)) {
LOG_ERR("SPI device %s not ready", config->bus.bus->name);
return -ENODEV;
}
config->frequency = DT_INST_PROP(0, spi_max_frequency);
config->operation = LPD880X_SPI_OPERATION;
config->slave = DT_INST_REG_ADDR(0); /* MOSI/CLK only; CS is not supported. */
config->cs = NULL;
return 0;
}
static struct lpd880x_data lpd880x_strip_data;
static const struct lpd880x_config lpd880x_config = {
.bus = SPI_DT_SPEC_INST_GET(0, LPD880X_SPI_OPERATION, 0)
};
static const struct led_strip_driver_api lpd880x_strip_api = {
.update_rgb = lpd880x_strip_update_rgb,
@ -155,6 +148,6 @@ static const struct led_strip_driver_api lpd880x_strip_api = {
};
DEVICE_DT_INST_DEFINE(0, lpd880x_strip_init, NULL,
&lpd880x_strip_data,
NULL, POST_KERNEL, CONFIG_LED_STRIP_INIT_PRIORITY,
&lpd880x_strip_api);
NULL, &lpd880x_config,
POST_KERNEL, CONFIG_LED_STRIP_INIT_PRIORITY,
&lpd880x_strip_api);