Thread (8 messages) 8 messages, 2 authors, 2018-10-18

[PATCH V6 1/3] dt-bindings: fsl: scu: make power domain compatible string SoC specific

From: aisheng.dong@nxp.com (A.s. Dong)
Date: 2018-10-18 15:47:09
Also in: linux-devicetree, linux-pm

-----Original Message-----
From: Rob Herring [mailto:robh at kernel.org]
Sent: Thursday, October 18, 2018 11:39 PM
[...]
On Thu, Oct 18, 2018 at 10:08 AM A.s. Dong [off-list ref] wrote:
quoted
quoted
-----Original Message-----
From: Rob Herring [mailto:robh at kernel.org]
Sent: Thursday, October 18, 2018 10:34 PM
To: A.s. Dong <aisheng.dong@nxp.com>
[...]
quoted
On Wed, Oct 17, 2018 at 07:24:40AM +0000, A.s. Dong wrote:
quoted
As the power domain API might change in the future for new SoCs,
although in a very low possibility, it's still better to make the
compatible string more SoC specific to avoid the possible version
change for
new SoCs.
quoted
Due to there're still no users in kernel, it's safe to update it
without breaking anything.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <redacted>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree at vger.kernel.org
Suggested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
checkpatch says:

WARNING: Missing Signed-off-by: line by nominal patch author 'A.s.
Dong [off-list ref]'
Do you think if we can ignore this warning?
Probably, but better if you can fix it.
quoted
It seems checkpatch checks the email sender name as nominal patch
author which is abbreviated as 'A.S. Dong'. But I always use the full
name in upstreaming patches.
The patch contents should start with a 'From:' line if your sending email
doesn't match the patch author (such as when you sent another author's
patch). Maybe it did match and your email server is overwriting it. I would
imagine that can be fixed.
Yes, I will try to fix it. Thanks for the suggestion.
As this may be related to our email server, probably may not be able to fixe so quick
for this patch resend. Please let me know if you mind it.
quoted
quoted
quoted
---
ChangeLog:
v5->v6:
 * new patch
---
 Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt | 4
++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git
a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 46d0af1..87fc4b4 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -58,7 +58,7 @@ This binding for the SCU power domain providers
uses the generic power  domain binding[2].

 Required properties:
-- compatible:              Should be "fsl,scu-pd".
+- compatible:              Should be "fsl,imx8qxp-scu-pd".
You can keep both if you think future SoCs will be compatible.
They're likely to be compatible AFAIK.

Just to be clear, you mean keep both of them?
Yes, but...
quoted
e.g.
compatible: Should be "fsl,imx8qxp-scu-pd" or "fsl,scu-pd"
Not exactly, "fsl,scu-pd" should be a fallback and the driver can match on that
(until you need to distinguish). So like this:

Should be one of:
  "fsl,imx8qxp-scu-pd"
followed by "fsl,scu-pd"
quoted
Can you please help clarify a bit more on why it's better to do that
as I'm not quite Understand?

And for later when mx8qm is supported, should we add it again as follows?
compatible: Should be "fsl,imx8qm-scu-pd", "fsl,imx8qxp-scu-pd" or
"fsl,scu-pd"

If formatted as above, then it is a one line change to add:

Should be one of:
  "fsl,imx8qm-scu-pd"
  "fsl,imx8qxp-scu-pd"
followed by "fsl,scu-pd"
Much clear now.
Thanks for the clarification.

Regards
Dong Aisheng
Rob
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