linux-kernel - [PATCH 2/3] mfd: sec: Add clock cell for s2mps11

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Date:	Sun, 07 Jul 2013 17:14:21 +0530
From:	Yadwinder Singh Brar <yadi.brar@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org, sbkim73@...sung.com,
	sameo@...ux.intel.com, mturquette@...aro.org, lee.jones@...aro.org,
	broonie@...nel.org, yadi.brar01@...il.com,
	Yadwinder Singh Brar <yadi.brar@...sung.com>
Subject: [PATCH 2/3] mfd: sec: Add clock cell for s2mps11

This patch adds clock to list of mfd cells for s2mps11 and DT documentation
for clock part.

Signed-off-by: Yadwinder Singh Brar <yadi.brar@...sung.com>
---
 Documentation/devicetree/bindings/mfd/s2mps11.txt |   20 ++++++++++++++++++++
 drivers/mfd/sec-core.c                            |    4 +++-
 2 files changed, 23 insertions(+), 1 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
index 36269c4..e41dd16 100644
--- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
+++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt
@@ -16,6 +16,21 @@ Optional properties:
 - interrupts: Interrupt specifiers for interrupt sources.
 
 Optional nodes:
+- clocks: s2mps11 provides three(AP/CP/BT) buffered 32.768 KHz outputs, so to
+  register these as clocks with common clock framework instantiate a sub-node
+  named "clocks". It uses the common clock binding documented in :
+  [Documentation/devicetree/bindings/clock/clock-bindings.txt]
+  - #clock-cells: should be 1.
+
+  - The following is the list of clocks generated by the controller. Each clock
+    is assigned an identifier and client nodes use this identifier to specify
+    the clock which they consume.
+    Clock               ID
+    ----------------------
+    32KhzAP		0
+    32KhzCP		1
+    32KhzBT		2
+
 - regulators: The regulators of s2mps11 that have to be instantiated should be
 included in a sub-node named 'regulators'. Regulator nodes included in this
 sub-node should be of the format as listed below.
@@ -55,6 +70,11 @@ Example:
 		compatible = "samsung,s2mps11-pmic";
 		reg = <0x66>;
 
+		s2m_osc: clocks{
+			#clock-cells = 1;
+			clock-output-names = "xx", "yy", "zz";
+		};
+
 		regulators {
 			ldo1_reg: LDO1 {
 				regulator-name = "VDD_ABB_3.3V";
diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 760da8a..eaee5ec 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -58,7 +58,9 @@ static struct mfd_cell s5m8767_devs[] = {
 static struct mfd_cell s2mps11_devs[] = {
 	{
 		.name = "s2mps11-pmic",
-	},
+	}, {
+		.name = "s2mps11-clk",
+	}
 };
 
 #ifdef CONFIG_OF
-- 
1.7.0.4

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