Thread (11 messages) 11 messages, 5 authors, 2017-07-24

RE: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk

From: Y.T. Tang <hidden>
Date: 2017-03-09 08:47:49
Also in: linux-arm-kernel, linux-clk, lkml

Hi Michael and Stephen,

This patch set was acked by Rob Herring. Do you have any comments on them?

BTW:  Scott should stay in author, do I need to resend them with author changed or you can change it when applying?

Regards,
Yuantian
-----Original Message-----
From: Rob Herring [mailto:robh@kernel.org]
Sent: Tuesday, February 28, 2017 1:19 AM
To: Y.T. Tang
Cc: mturquette@baylibre.com; sboyd@codeaurora.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; Scott Wood
Subject: Re: [PATCH 1/2] dt-bindings: qoriq-clock: Add coreclk

On Wed, Feb 15, 2017 at 01:47:35PM +0800, yuantian.tang@nxp.com wrote:
quoted
From: Tang Yuantian <redacted>

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 <redacted>
---
 Documentation/devicetree/bindings/clock/qoriq-clock.txt | 6 ++++++
 1 file changed, 6 insertions(+)
The change looks fine, but sounds like Scott should remain the author (or
agree he shouldn't be).
quoted
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
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