linux-kernel - [PATCH v6 3/9] rpmb: add sysfs-class ABI documentation

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Date:   Tue, 13 Sep 2016 16:22:58 +0300
From:   Tomas Winkler <tomas.winkler@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        James Bottomley <James.Bottomley@...senPartnership.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Vinayak Holikatti <vinholikatti@...il.com>,
        Andy Lutomirski <luto@...nel.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        Michael Ryleev <gmar@...gle.com>,
        Joao Pinto <Joao.Pinto@...opsys.com>,
        Christoph Hellwig <hch@....de>,
        Yaniv Gardi <ygardi@...eaurora.org>
Cc:     Avri Altman <avri.altman@...il.com>, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, linux-scsi@...r.kernel.org,
        Tomas Winkler <tomas.winkler@...el.com>
Subject: [PATCH v6 3/9] rpmb: add sysfs-class ABI documentation

Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
V2: resend
V3: add more verbose description
V4: resend
V5: adjust date and kernel version
V6: adjust date and kernel version

 Documentation/ABI/testing/sysfs-class-rpmb | 20 ++++++++++++++++++++
 MAINTAINERS                                |  1 +
 2 files changed, 21 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-rpmb

diff --git a/Documentation/ABI/testing/sysfs-class-rpmb b/Documentation/ABI/testing/sysfs-class-rpmb
new file mode 100644
index 000000000000..9b840e660274
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-rpmb
@@ -0,0 +1,20 @@
+What:		/sys/class/rpmb/
+Date:		Sep 2016
+KernelVersion:  4.9
+Contact:	Tomas Winkler <tomas.winkler@...el.com>
+Description:
+		The rpmb/ class sub-directory belongs to RPMB device class.
+
+		Few storage technologies such is EMMC, UFS, and NVMe support
+		Replay Protected Memory Block (RPMB) hardware partition with
+		common protocol and frame layout.
+		Such a partition provides authenticated and replay protected access,
+		hence suitable as a secure storage.
+
+What:		/sys/class/rpmb/rpmbN/
+Date:		Sep 2016
+KernelVersion:	4.9
+Contact:	Tomas Winkler <tomas.winkler@...el.com>
+Description:
+		The /sys/class/rpmb/rpmbN directory is created for
+		each RPMB registered device.
diff --git a/MAINTAINERS b/MAINTAINERS
index d6f5f134f55d..d701a972c83a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10000,6 +10000,7 @@ L:	linux-kernel@...r.kernel.org
 S:	Supported
 F:	drivers/char/rpmb/*
 F:	include/linux/rpmb.h
+F:	Documentation/ABI/testing/sysfs-class-rpmb
 
 RTL2830 MEDIA DRIVER
 M:	Antti Palosaari <crope@....fi>
-- 
2.7.4