[Linux-stm32] [PATCH V2 1/4] mmc: mmci: Add bindings to operate CMD, CK, CKIN pins as GPIO

[Marek Vasut]

Add DT bindings to describe GPIO line associated with CMD, CK, CKIN pins.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Alexandre Torgue <alexandre.torgue at st.com>
Cc: Linus Walleij <linus.walleij at linaro.org>
Cc: Ludovic Barre <ludovic.barre at st.com>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: Ulf Hansson <ulf.hansson at linaro.org>
Cc: linux-stm32 at st-md-mailman.stormreply.com
Cc: devicetree at vger.kernel.org
---
V2: Rebase on next-20210122
---
 .../devicetree/bindings/mmc/arm,pl18x.yaml    | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml b/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml
index eddc1f6bdbe5..47595cb483be 100644
--- a/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml
+++ b/Documentation/devicetree/bindings/mmc/arm,pl18x.yaml
@@ -127,6 +127,26 @@ properties:
       driver to sample the receive data (for example with a voltage switch
       transceiver).
 
+  st,cmd-gpios:
+    maxItems: 1
+    description:
+      The GPIO matching the CMD pin.
+
+  st,ck-gpios:
+    maxItems: 1
+    description:
+      The GPIO matching the CK pin.
+
+  st,ckin-gpios:
+    maxItems: 1
+    description:
+      The GPIO matching the CKIN pin.
+
+dependencies:
+  st,cmd-gpios: [ "st,use-ckin" ]
+  st,ck-gpios: [ "st,use-ckin" ]
+  st,ckin-gpios: [ "st,use-ckin" ]
+
 unevaluatedProperties: false
 
 required:
-- 
2.29.2