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Date: Tue, 5 Mar 2024 20:24:08 +0000
From: Daniel Golle <daniel@makrotopia.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>, Jens Axboe <axboe@kernel.dk>,
	Daniel Golle <daniel@makrotopia.org>,
	Dave Chinner <dchinner@redhat.com>, Jan Kara <jack@suse.cz>,
	Thomas =?iso-8859-1?Q?Wei=DFschuh?= <linux@weissschuh.net>,
	Christian Brauner <brauner@kernel.org>,
	Li Lingfeng <lilingfeng3@huawei.com>,
	Damien Le Moal <dlemoal@kernel.org>, Min Li <min15.li@samsung.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Hannes Reinecke <hare@suse.de>,
	Christian Loehle <CLoehle@hyperstone.com>,
	Avri Altman <avri.altman@wdc.com>, Bean Huo <beanhuo@micron.com>,
	Yeqi Fu <asuk4.q@gmail.com>,
	Victor Shih <victor.shih@genesyslogic.com.tw>,
	Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
	"Ricardo B. Marliere" <ricardo@marliere.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mmc@vger.kernel.org, linux-block@vger.kernel.org
Cc: Diping Zhang <diping.zhang@gl-inet.com>,
	Jianhui Zhao <zhaojh329@gmail.com>,
	Jieying Zeng <jieying.zeng@gl-inet.com>,
	Chad Monroe <chad.monroe@adtran.com>,
	Adam Fox <adam.fox@adtran.com>, John Crispin <john@phrozen.org>
Subject: [RFC PATCH v2 5/8] dt-bindings: mmc: mmc-card: add block device nodes
Message-ID: <e2b6819ca1ed4bca82530b64975d0856215d5185.1709667858.git.daniel@makrotopia.org>
References: <cover.1709667858.git.daniel@makrotopia.org>
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In-Reply-To: <cover.1709667858.git.daniel@makrotopia.org>

Add nodes representing the block devices exposed by an MMC device
including an example involving nvmem-cells.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 .../devicetree/bindings/mmc/mmc-card.yaml     | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.yaml b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
index fd347126449ac..95ccbda871d24 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-card.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
@@ -26,6 +26,18 @@ properties:
       Use this to indicate that the mmc-card has a broken hpi
       implementation, and that hpi should not be used.
 
+  block:
+    $ref: /schemas/block/block-device.yaml#
+    description:
+      Represents the block storage provided by an SD card or the
+      main hardware partition of an eMMC.
+
+patternProperties:
+  '^boot[0-9]+':
+    $ref: /schemas/block/block-device.yaml#
+    description:
+      Represents a boot hardware partition on an eMMC.
+
 required:
   - compatible
   - reg
@@ -42,6 +54,39 @@ examples:
             compatible = "mmc-card";
             reg = <0>;
             broken-hpi;
+
+            block {
+                partitions {
+                    cal_data: block-partition-rf {
+                        partnum = <3>;
+                        partname = "rf";
+
+                        nvmem-layout {
+                            compatible = "fixed-layout";
+                            #address-cells = <1>;
+                            #size-cells = <1>;
+
+                            eeprom@0 {
+                                reg = <0x0 0x1000>;
+                            };
+                        };
+                    };
+                };
+            };
+
+            boot1 {
+                nvmem-layout {
+                    compatible = "fixed-layout";
+                    #address-cells = <1>;
+                    #size-cells = <1>;
+
+                    macaddr: macaddr@a {
+                        compatible = "mac-base";
+                        reg = <0xa 0x6>;
+                        #nvmem-cell-cells = <1>;
+                    };
+                };
+            };
         };
     };
 
-- 
2.44.0