| Message ID | 20240109-axi-spi-engine-series-3-v1-2-e42c6a986580@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spi: axi-spi-engine: add offload support | expand |
On Wed, Jan 10, 2024 at 1:51 PM David Lechner <dlechner@baylibre.com> wrote: > > According to the spi-controller.yaml bindings, SPI peripheral child > nodes match the pattern "^.*@[0-9a-f]+$". > > A SPI controller binding may require a child object node that is not a > peripheral. For example, the adi,axi-spi-engine binding requires an > "offloads" child node that is not a peripheral but rather a part of the > controller itself. > > By checking for '@' in the node name, we can avoids a warnings like: > > Warning (spi_bus_reg): /example-0/spi@44a00000/offloads: missing or empty reg property > > for a binding like: > > spi { > ... > > offloads { > offload@0 { > ... > }; > ... > }; > > peripheral@0 { > ... > }; > }; > > Signed-off-by: David Lechner <dlechner@baylibre.com> > --- > scripts/dtc/checks.c | 4 ++++ > 1 file changed, 4 insertions(+) Check the commit history. We don't take changes to kernel's dtc copy. They must go upstream first. Rob
diff --git a/scripts/dtc/checks.c b/scripts/dtc/checks.c index 9f31d2607182..5af68642f231 100644 --- a/scripts/dtc/checks.c +++ b/scripts/dtc/checks.c @@ -1144,6 +1144,10 @@ static void check_spi_bus_reg(struct check *c, struct dt_info *dti, struct node if (!node->parent || (node->parent->bus != &spi_bus)) return; + /* only nodes with '@' in name are SPI devices */ + if (!strchr(unitname, '@')) + return; + if (get_property(node->parent, "spi-slave")) return;
According to the spi-controller.yaml bindings, SPI peripheral child nodes match the pattern "^.*@[0-9a-f]+$". A SPI controller binding may require a child object node that is not a peripheral. For example, the adi,axi-spi-engine binding requires an "offloads" child node that is not a peripheral but rather a part of the controller itself. By checking for '@' in the node name, we can avoids a warnings like: Warning (spi_bus_reg): /example-0/spi@44a00000/offloads: missing or empty reg property for a binding like: spi { ... offloads { offload@0 { ... }; ... }; peripheral@0 { ... }; }; Signed-off-by: David Lechner <dlechner@baylibre.com> --- scripts/dtc/checks.c | 4 ++++ 1 file changed, 4 insertions(+)