Re: [PATCH v3 1/3] dt-bindings: mmc: controller: move properties common with slot out to mmc-controller-common

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Hi Rob,

On 07/10/2024 22:02, Rob Herring wrote:
On Mon, Oct 07, 2024 at 04:03:37PM +0200, Neil Armstrong wrote:
Move the common MMC "slot" properties because they are shared by the
single-slot or multi-slot controllers, and will help defining a simple
mmc-slot bindings document with proper slot properties and nodename.

Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
  .../bindings/mmc/mmc-controller-common.yaml        | 357 +++++++++++++++++++++
  .../devicetree/bindings/mmc/mmc-controller.yaml    | 344 +-------------------
  2 files changed, 360 insertions(+), 341 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml
new file mode 100644
index 000000000000..e02d3cbcc271
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-controller-common.yaml
@@ -0,0 +1,357 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/mmc-controller-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MMC Controller & Slots Common Properties
+
+maintainers:
+  - Ulf Hansson <ulf.hansson@xxxxxxxxxx>
+
+description: |
+  These properties are common to multiple MMC host controllers and the
+  possible slots or ports for multi-slot controllers.
+
+properties:
+  "#address-cells":
+    const: 1
+    description: |
+      The cell is the slot ID if a function subnode is used.

Actually, this comment is wrong. When slot is used, this is still the
cell size for the mmc bus.

I don't understand, the comment is still valid, MMC slots can have function subnodes
aswell, perhaps the "slot ID" is confusing here ? here it stands for the MMC protocol
slot ID, not the physical slot of the multi-slot MMC controller.

Neil




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