Thread (14 messages) 14 messages, 2 authors, 2018-02-10

[PATCH v3 01/11] dt-bindings: clock: Add Actions S900 clock bindings

From: Philippe Ombredanne <hidden>
Date: 2018-02-10 07:37:05
Also in: linux-clk, linux-devicetree, lkml

Dear Manivannan,

On Sat, Feb 10, 2018 at 3:41 AM, Manivannan Sadhasivam
[off-list ref] wrote:
Add Actions Semi S900 clock bindings.

Signed-off-by: Manivannan Sadhasivam <redacted>
Acked-by: Rob Herring <robh@kernel.org>
<snip>
quoted hunk ↗ jump to hunk
diff --git a/include/dt-bindings/clock/actions,s900-cmu.h b/include/dt-bindings/clock/actions,s900-cmu.h
new file mode 100644
index 000000000000..2fa94e19922b
--- /dev/null
+++ b/include/dt-bindings/clock/actions,s900-cmu.h
@@ -0,0 +1,139 @@
+/*
+ * Device Tree binding constants for Actions S900 Clock Management Unit
+ *
+ * Copyright (c) 2014 Actions Semi Inc.
+ * Copyright (c) 2017 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
Would you consider using the new SPDX license ids rather that this
time-tested but rather boring legalese?

The (still new and fresh) license documentation contributed by tglx
--the only maintainer that I know that understands both the innards of
Spectre and Meltdown and the beauty of reStructuredText -- is in:
Documentation/process/license-rules.rst

Practically this means replacing the above by a simple single line and
getting rid of a whopping 8 comment lines!

SPDX-License-Identifier: GPL-2.0+

You get to save a few tree as a bonus if you also do the same for all
Linaro-copyrighted files. Yes this is saving trees because I will use
less paper each time I print a listing of the kernel source code.
Which is something that I rarely if ever do: but somebody must do it
somewhere for sure.

If I do the math: we have ~60K files in the kernel, and say we can
remove roughly 5 lines of legalese per file on average. Each printed
source code page is roughly 60 lines : this will mean a saving of
about 6000 paper sheets saved on each printout! A letter-size paper
ream is 500 pages, about 2.5 Kg and costs about ~$8.  You can extract
about 10K to 20k sheets of paper per tree [1].
Therefore my Fermi estimate is that using shorter legalese in the
kernel will eventually save roughly ONE FULL smaller tree (6K pages)
each time someone prints the kernel code: incredible, right?

Thank  you for helping make the kernel a mostly legalese-free codebase
and saving trees at the same time!

[1] https://www.sierraclub.org/sierra/2014-4-july-august/green-life/how-much-paper-does-one-tree-produce
-- 
Cordially
Philippe Ombredanne
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