Add fallback support for currently not supported HW. Instead of
completely fail, it is better to use some kind of basic devicetree with
reduced functionality.
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
arch/arm/boards/skov-imx8mp/board.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boards/skov-imx8mp/board.c b/arch/arm/boards/skov-imx8mp/board.c
index 3b6eb7b080..d4cb9c8279 100644
--- a/arch/arm/boards/skov-imx8mp/board.c
+++ b/arch/arm/boards/skov-imx8mp/board.c
@@ -85,6 +85,10 @@ static const struct board_description imx8mp_variants[] = {
},
};
+static const struct board_description imx8mp_basic_variant = {
+ .dts_compatible = "skov,imx8mp-skov-basic",
+};
+
static int skov_imx8mp_fixup(struct device_node *root, void *data)
{
struct device_node *chosen = of_create_node(root, "/chosen");
@@ -171,12 +175,12 @@ static int skov_imx8mp_init_variant(struct skov_imx8mp_priv *priv)
priv->variant_id = v;
if (v >= ARRAY_SIZE(imx8mp_variants)) {
- dev_err(dev, "Invalid variant %u\n", v);
- return -EINVAL;
+ dev_warn(dev, "Unsupported variant %u. Fall back to basic variant\n", v);
+ variant = &imx8mp_basic_variant;
+ } else {
+ variant = &imx8mp_variants[v];
}
- variant = &imx8mp_variants[v];
-
if (variant->flags & SKOV_IMX8MP_HAS_HDMI) {
ret = skov_imx8mp_get_hdmi(dev);
if (ret < 0)
--
2.39.2
