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Diffstat (limited to 'drivers/fpga/altera-ps-spi.c')
-rw-r--r--drivers/fpga/altera-ps-spi.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c
index a13f224303c6..0221dee8dd4c 100644
--- a/drivers/fpga/altera-ps-spi.c
+++ b/drivers/fpga/altera-ps-spi.c
@@ -210,7 +210,7 @@ static int altera_ps_write_complete(struct fpga_manager *mgr,
return -EIO;
}
- if (!IS_ERR(conf->confd)) {
+ if (conf->confd) {
if (!gpiod_get_raw_value_cansleep(conf->confd)) {
dev_err(&mgr->dev, "CONF_DONE is inactive!\n");
return -EIO;
@@ -289,10 +289,13 @@ static int altera_ps_probe(struct spi_device *spi)
return PTR_ERR(conf->status);
}
- conf->confd = devm_gpiod_get(&spi->dev, "confd", GPIOD_IN);
+ conf->confd = devm_gpiod_get_optional(&spi->dev, "confd", GPIOD_IN);
if (IS_ERR(conf->confd)) {
- dev_warn(&spi->dev, "Not using confd gpio: %ld\n",
- PTR_ERR(conf->confd));
+ dev_err(&spi->dev, "Failed to get confd gpio: %ld\n",
+ PTR_ERR(conf->confd));
+ return PTR_ERR(conf->confd);
+ } else if (!conf->confd) {
+ dev_warn(&spi->dev, "Not using confd gpio");
}
/* Register manager with unique name */