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lora: sx126x: disable DIO1 in sleep mode

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Disable the DIO1 interrupt when the sx126x modem is in sleep mode.
On nRF hardware, this lets the `GPIOTE` hardware be switched off, saving
15uA.

Fixes #31569.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2021-01-24 16:55:32 +10:00 committed by Anas Nashif
parent 6776535322
commit e756ad6c0f
1 changed files with 9 additions and 3 deletions
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12
drivers/lora/sx126x.c
View file

@ -331,6 +331,11 @@ void SX126xSetOperatingMode(RadioOperatingModes_t mode)
sx126x_set_rx_enable(1);
break;
case MODE_SLEEP:
/* Additionally disable the DIO1 interrupt to save power */
gpio_pin_interrupt_configure(dev_data.dio1, GPIO_DIO1_PIN,
GPIO_INT_DISABLE);
__fallthrough;
default:
sx126x_set_rx_enable(0);
sx126x_set_tx_enable(0);
@ -406,6 +411,10 @@ void SX126xWakeup(void)
{
int ret;
/* Reenable DIO1 when waking up */
gpio_pin_interrupt_configure(dev_data.dio1, GPIO_DIO1_PIN,
GPIO_INT_EDGE_TO_ACTIVE);
uint8_t req[] = { RADIO_GET_STATUS, 0 };
const struct spi_buf tx_buf = {
.buf = req,
@ -480,9 +489,6 @@ static int sx126x_lora_init(const struct device *dev)
return -EIO;
}
gpio_pin_interrupt_configure(dev_data.dio1, GPIO_DIO1_PIN,
GPIO_INT_EDGE_TO_ACTIVE);
dev_data.spi = device_get_binding(DT_INST_BUS_LABEL(0));
if (!dev_data.spi) {
LOG_ERR("Cannot get pointer to %s device",