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drivers: lora: sx1276: make GPIO CS pin optional

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The cs-gpios pin on SPI controller is optional for SPI controllers that
can automatically control CS line.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2020-04-18 00:17:04 +02:00 • committed by Carles Cufí
commit 6c798aa31c
1 changed files with 4 additions and 0 deletions
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4
drivers/lora/sx1276.c
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@ -311,7 +311,9 @@ const struct Radio_s Radio = {
static int sx1276_lora_init(struct device *dev)
{
#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
static struct spi_cs_control spi_cs;
#endif
int ret;
uint8_t regval;
@ -326,6 +328,7 @@ static int sx1276_lora_init(struct device *dev)
dev_data.spi_cfg.frequency = DT_INST_PROP(0, spi_max_frequency);
dev_data.spi_cfg.slave = DT_INST_REG_ADDR(0);
#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
spi_cs.gpio_pin = GPIO_CS_PIN,
spi_cs.gpio_dev = device_get_binding(
DT_INST_SPI_DEV_CS_GPIOS_LABEL(0));
@ -336,6 +339,7 @@ static int sx1276_lora_init(struct device *dev)
}
dev_data.spi_cfg.cs = &spi_cs;
#endif
/* Setup Reset gpio */
dev_data.reset = device_get_binding(