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From: <yuantian.tang@nxp.com>
To: <mturquette@baylibre.com>
Cc: <sboyd@codeaurora.org>, <robh+dt@kernel.org>,
	<mark.rutland@arm.com>, <linux-clk@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	"Tang Yuantian" <Yuantian.Tang@nxp.com>,
	Scott Wood <oss@buserror.net>,
	"Tang Yuantian" <yuantian.tang@nxp.com>
Subject: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk
Date: Wed, 15 Feb 2017 13:47:35 +0800	[thread overview]
Message-ID: <1487137656-4006-1-git-send-email-yuantian.tang@nxp.com> (raw)

From: Tang Yuantian <Yuantian.Tang@nxp.com>

ls1012a has separate input root clocks for core PLLs versus the platform
PLL, with the latter described as sysclk in the hw docs.
Update the qoriq-clock binding to allow a second input clock, named
"coreclk".  If present, this clock will be used for the core PLLs.

Signed-off-by: Scott Wood <oss@buserror.net>
Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com>
---
 Documentation/devicetree/bindings/clock/qoriq-clock.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qoriq-clock.txt b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
index df9cb5a..97a9666 100644
--- a/Documentation/devicetree/bindings/clock/qoriq-clock.txt
+++ b/Documentation/devicetree/bindings/clock/qoriq-clock.txt
@@ -55,6 +55,11 @@ Optional properties:
 - clocks: If clock-frequency is not specified, sysclk may be provided
 	as an input clock.  Either clock-frequency or clocks must be
 	provided.
+	A second input clock, called "coreclk", may be provided if
+	core PLLs are based on a different input clock from the
+	platform PLL.
+- clock-names: Required if a coreclk is present.  Valid names are
+	"sysclk" and "coreclk".
 
 2. Clock Provider
 
@@ -71,6 +76,7 @@ second cell is the clock index for the specified type.
 	2	hwaccel		index (n in CLKCGnHWACSR)
 	3	fman		0 for fm1, 1 for fm2
 	4	platform pll	0=pll, 1=pll/2, 2=pll/3, 3=pll/4
+	5	coreclk		must be 0
 
 3. Example
 
-- 
2.1.0.27.g96db324

             reply	other threads:[~2017-02-15  6:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-15  5:47 yuantian.tang [this message]
2017-02-15  5:47 ` [PATCH 2/2] clk: qoriq: Separate root input clock for core PLLs on ls1012a yuantian.tang
2017-02-15 18:36   ` Scott Wood
2017-02-16  2:21     ` Y.T. Tang
2017-02-27  2:19 ` [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk Y.T. Tang
2017-02-27 17:18 ` Rob Herring
2017-03-01  1:45   ` Y.T. Tang
2017-03-01 23:17     ` Rob Herring
2017-03-09  8:46   ` Y.T. Tang
2017-07-21 22:03     ` sboyd
2017-07-24  1:20       ` Andy Tang

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