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From: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
To: <hdegoede@redhat.com>, <markgross@kernel.org>
Cc: <platform-driver-x86@vger.kernel.org>, <Patil.Reddy@amd.com>,
	<bnocera@redhat.com>, Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Subject: [PATCH v2 3/4] Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF
Date: Mon, 12 Sep 2022 14:36:40 +0530	[thread overview]
Message-ID: <20220912090641.111658-4-Shyam-sundar.S-k@amd.com> (raw)
In-Reply-To: <20220912090641.111658-1-Shyam-sundar.S-k@amd.com>

AMD PMF driver provides the flexibility to turn "on" or "off"
CnQF feature (introduced in the earlier patch).

Add corresponding ABI documentation for the new sysfs node.

Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
---
 Documentation/ABI/testing/sysfs-amd-pmf | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-amd-pmf

diff --git a/Documentation/ABI/testing/sysfs-amd-pmf b/Documentation/ABI/testing/sysfs-amd-pmf
new file mode 100644
index 000000000000..c75d7426c2c7
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-amd-pmf
@@ -0,0 +1,11 @@
+What:		/sys/devices/platform/AMDI0102\:00/cnqf/feat
+Date:		September 2022
+Contact:	Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+Description:	Reading this file tells if the AMD Platform Management(PMF)
+		Cool n Quiet Framework(CnQF) feature is enabled or not.
+
+		This feature is not enabled by default and gets only turned on
+		if OEM BIOS passes a "flag" to PMF ACPI function (index 11 or 12)
+		or in case the user writes "on".
+
+		To turn off CnQF user can write "off" to the sysfs node.
-- 
2.25.1


  parent reply	other threads:[~2022-09-12  9:12 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-12  9:06 [PATCH v2 0/4] platform/x86/amd/pmf: Introduce CnQF feature for AMD PMF Shyam Sundar S K
2022-09-12  9:06 ` [PATCH v2 1/4] platform/x86/amd/pmf: Add support for CnQF Shyam Sundar S K
2022-09-19 10:18   ` Hans de Goede
2022-09-19 10:33   ` Hans de Goede
2022-09-12  9:06 ` [PATCH v2 2/4] platform/x86/amd/pmf: Add sysfs to toggle CnQF Shyam Sundar S K
2022-09-12 14:06   ` Limonciello, Mario
2022-09-12 16:22     ` Shyam Sundar S K
2022-09-19 10:37   ` Hans de Goede
2022-09-12  9:06 ` Shyam Sundar S K [this message]
2022-09-12 14:01   ` [PATCH v2 3/4] Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF Limonciello, Mario
2022-09-12 16:21     ` Shyam Sundar S K
2022-09-12 16:23       ` Limonciello, Mario
2022-09-12 16:34         ` Shyam Sundar S K
2022-09-12  9:06 ` [PATCH v2 4/4] MAINTAINERS: Update ABI doc path " Shyam Sundar S K
2022-09-19 10:39   ` Hans de Goede

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