diff options
| author | Anatolij Gustschin <agust@denx.de> | 2018-02-01 23:20:04 +0100 |
|---|---|---|
| committer | Moritz Fischer <mdf@kernel.org> | 2018-03-28 09:36:26 -0700 |
| commit | 45c5b1d989d10db08cbee0c93a38e5fc881ed506 (patch) | |
| tree | 55a0832341c846a24f0c7e0364d781c4f2e8ac12 | |
| parent | b0e671590bf58d8440641bb666979c950d64ae63 (diff) | |
| download | linux-fpga-for-4.17.tar.gz | |
fpga-manager: altera-ps-spi: preserve nCONFIG statefpga-for-greg-4.17fpga-for-4.17
If the driver module is loaded when FPGA is configured, the FPGA
is reset because nconfig is pulled low (low-active gpio inited
with GPIOD_OUT_HIGH activates the signal which means setting its
value to low). Init nconfig with GPIOD_OUT_LOW to prevent this.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
| -rw-r--r-- | drivers/fpga/altera-ps-spi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c index b061408bf0ae2..250d9cf9bb1bd 100644 --- a/drivers/fpga/altera-ps-spi.c +++ b/drivers/fpga/altera-ps-spi.c @@ -254,7 +254,7 @@ static int altera_ps_probe(struct spi_device *spi) conf->data = of_id->data; conf->spi = spi; - conf->config = devm_gpiod_get(&spi->dev, "nconfig", GPIOD_OUT_HIGH); + conf->config = devm_gpiod_get(&spi->dev, "nconfig", GPIOD_OUT_LOW); if (IS_ERR(conf->config)) { dev_err(&spi->dev, "Failed to get config gpio: %ld\n", PTR_ERR(conf->config)); |