diff options
Diffstat (limited to 'drivers/gpu/drm/tiny/panel-mipi-dbi.c')
| -rw-r--r-- | drivers/gpu/drm/tiny/panel-mipi-dbi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tiny/panel-mipi-dbi.c b/drivers/gpu/drm/tiny/panel-mipi-dbi.c index eb9f13f18a02..f80a141fcf36 100644 --- a/drivers/gpu/drm/tiny/panel-mipi-dbi.c +++ b/drivers/gpu/drm/tiny/panel-mipi-dbi.c @@ -307,7 +307,8 @@ static int panel_mipi_dbi_spi_probe(struct spi_device *spi) if (IS_ERR(dbi->reset)) return dev_err_probe(dev, PTR_ERR(dbi->reset), "Failed to get GPIO 'reset'\n"); - dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW); + /* Multiple panels can share the "dc" GPIO, but only if they are on the same SPI bus! */ + dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE); if (IS_ERR(dc)) return dev_err_probe(dev, PTR_ERR(dc), "Failed to get GPIO 'dc'\n"); |