linux-kernel - [PATCH 1/4] Documentation: dt: soc: move driver description to a separate document

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Message-ID: <1444679211-823-2-git-send-email-m-karicheri2@ti.com>
Date:	Mon, 12 Oct 2015 15:46:48 -0400
From:	Murali Karicheri <m-karicheri2@...com>
To:	<corbet@....net>, <ssantosh@...nel.org>,
	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<linux@....linux.org.uk>, <devicetree@...r.kernel.org>,
	<arnd@...db.de>
Subject: [PATCH 1/4] Documentation: dt: soc: move driver description to a separate document

Currently the DT bindings have details about the driver as well. This
patch moves this to a separate document for knav qmss driver so that
driver detail update can be done as needed without polluting the DT
bindings description.

Signed-off-by: Murali Karicheri <m-karicheri2@...com>
---
 Documentation/arm/keystone/knav-qmss.txt           | 24 ++++++++++++++++++++++
 .../bindings/soc/ti/keystone-navigator-qmss.txt    | 20 ++++--------------
 2 files changed, 28 insertions(+), 16 deletions(-)
 create mode 100644 Documentation/arm/keystone/knav-qmss.txt

diff --git a/Documentation/arm/keystone/knav-qmss.txt b/Documentation/arm/keystone/knav-qmss.txt
new file mode 100644
index 0000000..79946d1
--- /dev/null
+++ b/Documentation/arm/keystone/knav-qmss.txt
@@ -0,0 +1,24 @@
+* Texas Instruments Keystone Navigator Queue Management SubSystem driver
+
+Driver source code path
+  drivers/soc/ti/knav_qmss.c
+  drivers/soc/ti/knav_qmss_acc.c
+
+The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
+the main hardware sub system which forms the backbone of the Keystone
+multi-core Navigator. QMSS consist of queue managers, packed-data structure
+processors(PDSP), linking RAM, descriptor pools and infrastructure
+Packet DMA.
+The Queue Manager is a hardware module that is responsible for accelerating
+management of the packet queues. Packets are queued/de-queued by writing or
+reading descriptor address to a particular memory mapped location. The PDSPs
+perform QMSS related functions like accumulation, QoS, or event management.
+Linking RAM registers are used to link the descriptors which are stored in
+descriptor RAM. Descriptor RAM is configurable as internal or external memory.
+The QMSS driver manages the PDSP setups, linking RAM regions,
+queue pool management (allocation, push, pop and notify) and descriptor
+pool management.
+
+knav qmss driver provides a set of APIs to drivers to open/close qmss queues,
+allocate descriptor pools, map the descriptors, push/pop to queues etc. For
+details of the available APIs, please refers to include/linux/soc/ti/knav_qmss.h
diff --git a/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt b/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt
index d8e8cdb..2cecea1 100644
--- a/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt
+++ b/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt
@@ -1,20 +1,8 @@
-* Texas Instruments Keystone Navigator Queue Management SubSystem driver
-
-The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
-the main hardware sub system which forms the backbone of the Keystone
-multi-core Navigator. QMSS consist of queue managers, packed-data structure
-processors(PDSP), linking RAM, descriptor pools and infrastructure
-Packet DMA.
-The Queue Manager is a hardware module that is responsible for accelerating
-management of the packet queues. Packets are queued/de-queued by writing or
-reading descriptor address to a particular memory mapped location. The PDSPs
-perform QMSS related functions like accumulation, QoS, or event management.
-Linking RAM registers are used to link the descriptors which are stored in
-descriptor RAM. Descriptor RAM is configurable as internal or external memory.
-The QMSS driver manages the PDSP setups, linking RAM regions,
-queue pool management (allocation, push, pop and notify) and descriptor
-pool management.
+* Texas Instruments Keystone Navigator (knav) Queue Management SubSystem driver
+  DT bindings
 
+For details of the driver, please refer to
+Documentation/arm/keystone/knav-qmss.txt
 
 Required properties:
 - compatible	: Must be "ti,keystone-navigator-qmss";
-- 
1.9.1

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