Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Shawn Guo]

On Tue, Oct 13, 2015 at 12:12:29AM +0300, Laurent Pinchart wrote:
> Laurent Pinchart (37):
...
>   ARM: imx6sx-sdb: Fix typo in regulator enable GPIO property
...
>   ARM: dts: imx6qdl-tx6: Fix regulator enable GPIO polarity
...
>   ARM: dts: imx23-evk: Fix regulator enable GPIO polarity
>   ARM: dts: imx23-stmp378x_devb: Fix regulator enable GPIO polarity
>   ARM: dts: imx25-pdk: Fix regulator enable GPIO polarity
>   ARM: dts: imx28-cfa10036: Fix regulator enable GPIO polarity
>   ARM: dts: imx28-evk: Fix regulator enable GPIO polarity
>   ARM: dts: imx28-m28cu3: Fix regulator enable GPIO polarity
>   ARM: dts: imx28-m28evk: Fix regulator enable GPIO polarity
>   ARM: dts: imx28-sps1: Fix regulator enable GPIO polarity
>   ARM: dts: imx28-tx28: Fix regulator enable GPIO polarity
>   ARM: dts: imx53-m53evk: Fix regulator enable GPIO polarity
>   ARM: dts: imx53-mba53: Fix regulator enable GPIO polarity
>   ARM: dts: imx53-tx53: Fix regulator enable GPIO polarity
>   ARM: dts: imx6q-dmo-edmqmx6: Fix regulator enable GPIO polarity

Applied these 15 patches, thanks.
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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Laurent Pinchart]

Hi Shawn,

On Tuesday 13 October 2015 22:09:46 Shawn Guo wrote:
> On Tue, Oct 13, 2015 at 12:12:29AM +0300, Laurent Pinchart wrote:
> > Laurent Pinchart (37):
> ...
> 
> >   ARM: imx6sx-sdb: Fix typo in regulator enable GPIO property
> 
> ...
> 
> >   ARM: dts: imx6qdl-tx6: Fix regulator enable GPIO polarity
> 
> ...
> 
> >   ARM: dts: imx23-evk: Fix regulator enable GPIO polarity
> >   ARM: dts: imx23-stmp378x_devb: Fix regulator enable GPIO polarity
> >   ARM: dts: imx25-pdk: Fix regulator enable GPIO polarity
> >   ARM: dts: imx28-cfa10036: Fix regulator enable GPIO polarity
> >   ARM: dts: imx28-evk: Fix regulator enable GPIO polarity
> >   ARM: dts: imx28-m28cu3: Fix regulator enable GPIO polarity
> >   ARM: dts: imx28-m28evk: Fix regulator enable GPIO polarity
> >   ARM: dts: imx28-sps1: Fix regulator enable GPIO polarity
> >   ARM: dts: imx28-tx28: Fix regulator enable GPIO polarity
> >   ARM: dts: imx53-m53evk: Fix regulator enable GPIO polarity
> >   ARM: dts: imx53-mba53: Fix regulator enable GPIO polarity
> >   ARM: dts: imx53-tx53: Fix regulator enable GPIO polarity
> >   ARM: dts: imx6q-dmo-edmqmx6: Fix regulator enable GPIO polarity
> 
> Applied these 15 patches, thanks.

There's ongoing discussions regarding whether this is the right thing to do. 
Please see http://www.spinics.net/lists/arm-kernel/msg451724.html. It's thus a 
bit early to apply the patches at this point I'm afraid.

-- 
Regards,

Laurent Pinchart

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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Shawn Guo]

On Tue, Oct 13, 2015 at 05:17:24PM +0300, Laurent Pinchart wrote:
> Hi Shawn,
> 
> On Tuesday 13 October 2015 22:09:46 Shawn Guo wrote:
> > On Tue, Oct 13, 2015 at 12:12:29AM +0300, Laurent Pinchart wrote:
> > > Laurent Pinchart (37):
> > ...
> > 
> > >   ARM: imx6sx-sdb: Fix typo in regulator enable GPIO property
> > 
> > ...
> > 
> > >   ARM: dts: imx6qdl-tx6: Fix regulator enable GPIO polarity
> > 
> > ...
> > 
> > >   ARM: dts: imx23-evk: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx23-stmp378x_devb: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx25-pdk: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx28-cfa10036: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx28-evk: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx28-m28cu3: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx28-m28evk: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx28-sps1: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx28-tx28: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx53-m53evk: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx53-mba53: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx53-tx53: Fix regulator enable GPIO polarity
> > >   ARM: dts: imx6q-dmo-edmqmx6: Fix regulator enable GPIO polarity
> > 
> > Applied these 15 patches, thanks.
> 
> There's ongoing discussions regarding whether this is the right thing to do. 
> Please see http://www.spinics.net/lists/arm-kernel/msg451724.html. It's thus 
> a 
> bit early to apply the patches at this point I'm afraid.

Okay, dropped them except the first one which fixes a typo for
imx6sx-sdb.

Shawn
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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Sascha Hauer]

On Tue, Oct 13, 2015 at 12:12:29AM +0300, Laurent Pinchart wrote:
> Hello,
> 
> While working on regulators, GPIOs and DT I noticed that many of our DT source
> files incorrectly describe fixed regulators. The common error patterns are
> 
> - Usage of the undefined (and never parsed) enable-active-low property
> - Usage of the enable-active-high property without specifying an enable GPIO
> - Typos in the enabl GPIO property name (gpios instead of gpio)
> - Mismatch between the enable-active-high property (or the lack thereof) and
>   the enable GPIO flags
> 
> This patch series fixes those issues in all the DT sources after locating the
> errors using the following script.

Nice. For the i.MX boards:

Reviewed-by: Sascha Hauer 

Sascha


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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Tony Lindgren]

* Laurent Pinchart  [151012 14:17]:
> Hello,
> 
> While working on regulators, GPIOs and DT I noticed that many of our DT source
> files incorrectly describe fixed regulators. The common error patterns are
> 
> - Usage of the undefined (and never parsed) enable-active-low property
> - Usage of the enable-active-high property without specifying an enable GPIO
> - Typos in the enabl GPIO property name (gpios instead of gpio)
> - Mismatch between the enable-active-high property (or the lack thereof) and
>   the enable GPIO flags
> 
> This patch series fixes those issues in all the DT sources after locating the
> errors using the following script.
> 
> --
> #!/bin/sh
> 
> echo $1
> cat $1 | awk '
> BEGIN {
>   open_drain = 0;
>   active_high = 0;
>   gpio = 0;
>   flags = 0;
> }
> 
> match($0, /([a-zA-Z0-9@_-]*) {/, ary) {
>   name = ary[1];
> }
> 
> /compatible.*"regulator-fixed"/ {
>   found = 1;
> }
> 
> /enable-active-high/ {
>   active_high = 1;
> }
> 
> /gpio-open-drain/ {
>   open_drain = 1;
> }
> 
> match($0, /gpio += <.* ([^ ]*)>/, ary) {
>   gpio = 1;
>   flags = ary[1];
>   if (flags == 0)
>   flags = "GPIO_ACTIVE_HIGH";
> }
> 
> /}/ {
>   if (found) {
>   if (gpio) {
>   print "\t" name ": active high " active_high " " flags 
> " open drain " open_drain;
>   if ((active_high && flags == "GPIO_ACTIVE_LOW") ||
>   (!active_high && flags == "GPIO_ACTIVE_HIGH"))
>   print "WARNING: enable-active-high and flags do 
> not match"
>   } else {
>   if (active_high)
>   print "WARNING: active high without GPIO"
>   if (open_drain)
>   print "WARNING: open drain without GPIO"
>   }
>   }
> 
>   gpio = 0;
>   found = 0;
>   active_high = 0;
>   open_drain = 0;
>   flags = 0;
> }
> '
> --
> 
> All patches except for the ones touching omap3-beagle-xm and omap3-overo-base
> are untested as I lack test hardware.
> 
> As there's no dependency between the patches touching different source files
> the appropriate maintainers could take their share of the patches in their
> tree. Alternatively I could send a single pull request after collecting all
> acks but that might be more complex.

Nice clean-up. For omaps, there's an earlier patch posted by
Javier Martinez Canillas  as "[PATCH] ARM: dts: Use
defined GPIO constants in flags cell for OMAP2+ boards". Can you guys do some
cross checking and let me know which combination I should appluy for omaps?

Regards,

Tony
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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Javier Martinez Canillas]

Hello Tony,

On 10/12/2015 11:46 PM, Tony Lindgren wrote:
> * Laurent Pinchart  [151012 14:17]:
>> Hello,
>>
>> While working on regulators, GPIOs and DT I noticed that many of our DT 
>> source
>> files incorrectly describe fixed regulators. The common error patterns are
>>
>> - Usage of the undefined (and never parsed) enable-active-low property
>> - Usage of the enable-active-high property without specifying an enable GPIO
>> - Typos in the enabl GPIO property name (gpios instead of gpio)
>> - Mismatch between the enable-active-high property (or the lack thereof) and
>>   the enable GPIO flags
>>
>> This patch series fixes those issues in all the DT sources after locating the
>> errors using the following script.
>>
>> --
>> #!/bin/sh
>>
>> echo $1
>> cat $1 | awk '
>> BEGIN {
>>  open_drain = 0;
>>  active_high = 0;
>>  gpio = 0;
>>  flags = 0;
>> }
>>
>> match($0, /([a-zA-Z0-9@_-]*) {/, ary) {
>>  name = ary[1];
>> }
>>
>> /compatible.*"regulator-fixed"/ {
>>  found = 1;
>> }
>>
>> /enable-active-high/ {
>>  active_high = 1;
>> }
>>
>> /gpio-open-drain/ {
>>  open_drain = 1;
>> }
>>
>> match($0, /gpio += <.* ([^ ]*)>/, ary) {
>>  gpio = 1;
>>  flags = ary[1];
>>  if (flags == 0)
>>  flags = "GPIO_ACTIVE_HIGH";
>> }
>>
>> /}/ {
>>  if (found) {
>>  if (gpio) {
>>  print "\t" name ": active high " active_high " " flags 
>> " open drain " open_drain;
>>  if ((active_high && flags == "GPIO_ACTIVE_LOW") ||
>>  (!active_high && flags == "GPIO_ACTIVE_HIGH"))
>>  print "WARNING: enable-active-high and flags do 
>> not match"
>>  } else {
>>  if (active_high)
>>  print "WARNING: active high without GPIO"
>>  if (open_drain)
>>  print "WARNING: open drain without GPIO"
>>  }
>>  }
>>
>>  gpio = 0;
>>  found = 0;
>>  active_high = 0;
>>  open_drain = 0;
>>  flags = 0;
>> }
>> '
>> --
>>
>> All patches except for the ones touching omap3-beagle-xm and omap3-overo-base
>> are untested as I lack test hardware.
>>
>> As there's no dependency between the patches touching different source files
>> the appropriate maintainers could take their share of the patches in their
>> tree. Alternatively I could send a single pull request after collecting all
>> acks but that might be more complex.
> 
> Nice clean-up. For omaps, there's an earlier patch posted by
> Javier Martinez Canillas  as "[PATCH] ARM: dts: Use
> defined GPIO constants in flags cell for OMAP2+ boards". Can you guys do some
> cross checking and let me know which combination I should appluy for omaps?
>

Since Laurent's changes for OMAP are part of a bigger series and my patch
was only for OMAP, probably makes sense for you to pick his patches and I
can re-spin mine on top of that.

BTW, I posted as a single patch since the changes were trivial but maybe
that made handling these conflicts harder and I should split the changes
instead, since I'll resend anyways.

What do you prefer? a patch per SoC family (i.e: OMAP{2,3,4,5}) or patch
per board DTS?
 
> Regards,
> 
> Tony
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> in
> the body of a message to majord...@vger.kernel.org
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> 

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America
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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Tony Lindgren]

* Laurent Pinchart  [151012 15:26]:
> Hi Javier,
> 
> On Tuesday 13 October 2015 00:19:20 Javier Martinez Canillas wrote:
> > On 10/12/2015 11:46 PM, Tony Lindgren wrote:
> > > * Laurent Pinchart  [151012 14:17]:
> > >> Hello,
> > >> 
> > >> While working on regulators, GPIOs and DT I noticed that many of our DT
> > >> source files incorrectly describe fixed regulators. The common error
> > >> patterns are
> > >> 
> > >> - Usage of the undefined (and never parsed) enable-active-low property
> > >> - Usage of the enable-active-high property without specifying an enable
> > >>   GPIO
> > >> - Typos in the enabl GPIO property name (gpios instead of gpio)
> > >> - Mismatch between the enable-active-high property (or the lack thereof)
> > >>   and the enable GPIO flags
> > >> 
> > >> This patch series fixes those issues in all the DT sources after locating
> > >> the errors using the following script.
> > >> 
> > >> -
> > >> !/bin/sh
> > >> 
> > >> echo $1
> > >> cat $1 | awk '
> > >> BEGIN {
> > >>  open_drain = 0;
> > >>  active_high = 0;
> > >>  gpio = 0;
> > >>  flags = 0;
> > >> }
> > >> 
> > >> match($0, /([a-zA-Z0-9@_-]*) {/, ary) {
> > >>  name = ary[1];
> > >> }
> > >> 
> > >> /compatible.*"regulator-fixed"/ {
> > >>  found = 1;
> > >> }
> > >> 
> > >> /enable-active-high/ {
> > >>  active_high = 1;
> > >> }
> > >> 
> > >> /gpio-open-drain/ {
> > >>  open_drain = 1;
> > >> }
> > >> 
> > >> match($0, /gpio += <.* ([^ ]*)>/, ary) {
> > >>  gpio = 1;
> > >>  flags = ary[1];
> > >>  if (flags == 0)
> > >>  flags = "GPIO_ACTIVE_HIGH";
> > >> }
> > >> 
> > >> /}/ {
> > >>  if (found) {
> > >>  if (gpio) {
> > >>  print "\t" name ": active high " active_high " " flags 
> > >> " open 
> drain "
> > >>  open_drain;
> > >>  if ((active_high && flags == "GPIO_ACTIVE_LOW") ||
> > >>  (!active_high && flags == "GPIO_ACTIVE_HIGH"))
> > >>  print "WARNING: enable-active-high and flags do 
> > >> not 
> match"
> > >>  } else {
> > >>  if (active_high)
> > >>  print "WARNING: active high without GPIO"
> > >>  if (open_drain)
> > >>  print "WARNING: open drain without GPIO"
> > >>  }
> > >>  }
> > >>  
> > >>  gpio = 0;
> > >>  found = 0;
> > >>  active_high = 0;
> > >>  open_drain = 0;
> > >>  flags = 0;
> > >> }
> > >> '
> > >> -
> > >> 
> > >> All patches except for the ones touching omap3-beagle-xm and
> > >> omap3-overo-base are untested as I lack test hardware.
> > >> 
> > >> As there's no dependency between the patches touching different source
> > >> files the appropriate maintainers could take their share of the patches
> > >> in their tree. Alternatively I could send a single pull request after
> > >> collecting all acks but that might be more complex.
> > > 
> > > Nice clean-up. For omaps, there's an earlier patch posted by
> > > Javier Martinez Canillas  as "[PATCH] ARM: dts:
> > > Use defined GPIO constants in flags cell for OMAP2+ boards". Can you guys
> > > do some cross checking and let me know which combination I should appluy
> > > for omaps?
> >
> > Since Laurent's changes for OMAP are part of a bigger series and my patch
> > was only for OMAP, probably makes sense for you to pick his patches and I
> > can re-spin mine on top of that.
> > 
> > BTW, I posted as a single patch since the changes were trivial but maybe
> > that made handling these conflicts harder and I should split the changes
> > instead, since I'll resend anyways.
> > 
> > What do you prefer? a patch per SoC family (i.e: OMAP{2,3,4,5}) or patch
> > per board DTS?
> 
> My series will likely miss the next merge window as more discussion is 
> needed. 
> I'll thus respin the patches on top of yours, please proceed without caring 
> about this.

OK applying Javier's patch into omap-for-v4.4/dt then.

Regards,

Tony
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Re: [PATCH 00/37] ARM: dts: Fix fixed regulators enable GPIO polarity

[Laurent Pinchart]

Hi Javier,

On Tuesday 13 October 2015 00:19:20 Javier Martinez Canillas wrote:
> On 10/12/2015 11:46 PM, Tony Lindgren wrote:
> > * Laurent Pinchart  [151012 14:17]:
> >> Hello,
> >> 
> >> While working on regulators, GPIOs and DT I noticed that many of our DT
> >> source files incorrectly describe fixed regulators. The common error
> >> patterns are
> >> 
> >> - Usage of the undefined (and never parsed) enable-active-low property
> >> - Usage of the enable-active-high property without specifying an enable
> >>   GPIO
> >> - Typos in the enabl GPIO property name (gpios instead of gpio)
> >> - Mismatch between the enable-active-high property (or the lack thereof)
> >>   and the enable GPIO flags
> >> 
> >> This patch series fixes those issues in all the DT sources after locating
> >> the errors using the following script.
> >> 
> >> -
> >> !/bin/sh
> >> 
> >> echo $1
> >> cat $1 | awk '
> >> BEGIN {
> >>open_drain = 0;
> >>active_high = 0;
> >>gpio = 0;
> >>flags = 0;
> >> }
> >> 
> >> match($0, /([a-zA-Z0-9@_-]*) {/, ary) {
> >>name = ary[1];
> >> }
> >> 
> >> /compatible.*"regulator-fixed"/ {
> >>found = 1;
> >> }
> >> 
> >> /enable-active-high/ {
> >>active_high = 1;
> >> }
> >> 
> >> /gpio-open-drain/ {
> >>open_drain = 1;
> >> }
> >> 
> >> match($0, /gpio += <.* ([^ ]*)>/, ary) {
> >>gpio = 1;
> >>flags = ary[1];
> >>if (flags == 0)
> >>flags = "GPIO_ACTIVE_HIGH";
> >> }
> >> 
> >> /}/ {
> >>if (found) {
> >>if (gpio) {
> >>print "\t" name ": active high " active_high " " flags 
> >> " open 
drain "
> >>open_drain;
> >>if ((active_high && flags == "GPIO_ACTIVE_LOW") ||
> >>(!active_high && flags == "GPIO_ACTIVE_HIGH"))
> >>print "WARNING: enable-active-high and flags do 
> >> not 
match"
> >>} else {
> >>if (active_high)
> >>print "WARNING: active high without GPIO"
> >>if (open_drain)
> >>print "WARNING: open drain without GPIO"
> >>}
> >>}
> >>
> >>gpio = 0;
> >>found = 0;
> >>active_high = 0;
> >>open_drain = 0;
> >>flags = 0;
> >> }
> >> '
> >> -
> >> 
> >> All patches except for the ones touching omap3-beagle-xm and
> >> omap3-overo-base are untested as I lack test hardware.
> >> 
> >> As there's no dependency between the patches touching different source
> >> files the appropriate maintainers could take their share of the patches
> >> in their tree. Alternatively I could send a single pull request after
> >> collecting all acks but that might be more complex.
> > 
> > Nice clean-up. For omaps, there's an earlier patch posted by
> > Javier Martinez Canillas  as "[PATCH] ARM: dts:
> > Use defined GPIO constants in flags cell for OMAP2+ boards". Can you guys
> > do some cross checking and let me know which combination I should appluy
> > for omaps?
>
> Since Laurent's changes for OMAP are part of a bigger series and my patch
> was only for OMAP, probably makes sense for you to pick his patches and I
> can re-spin mine on top of that.
> 
> BTW, I posted as a single patch since the changes were trivial but maybe
> that made handling these conflicts harder and I should split the changes
> instead, since I'll resend anyways.
> 
> What do you prefer? a patch per SoC family (i.e: OMAP{2,3,4,5}) or patch
> per board DTS?

My series will likely miss the next merge window as more discussion is needed. 
I'll thus respin the patches on top of yours, please proceed without caring 
about this.

-- 
Regards,

Laurent Pinchart

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