[PATCH] of: property: Add fw_devlink support for pwms

[PATCH] of: property: Add fw_devlink support for pwms

[Orson Zhai]

From: Orson Zhai <orson.zhai@unisoc.com>

pwms is often required by backlight in embedded devices. Add device link
support for pwms as well.

Signed-off-by: Orson Zhai <orson.zhai@unisoc.com>
---
 drivers/of/property.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 6c02863..93be977 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1287,6 +1287,7 @@ DEFINE_SIMPLE_PROP(pinctrl6, "pinctrl-6", NULL)
 DEFINE_SIMPLE_PROP(pinctrl7, "pinctrl-7", NULL)
 DEFINE_SIMPLE_PROP(pinctrl8, "pinctrl-8", NULL)
 DEFINE_SIMPLE_PROP(remote_endpoint, "remote-endpoint", NULL)
+DEFINE_SIMPLE_PROP(pwms, "pwms", NULL)
 DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
 DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
 
@@ -1371,6 +1372,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_pinctrl7, },
 	{ .parse_prop = parse_pinctrl8, },
 	{ .parse_prop = parse_remote_endpoint, .node_not_dev = true, },
+	{ .parse_prop = parse_pwms, },
 	{ .parse_prop = parse_gpio_compat, },
 	{ .parse_prop = parse_interrupts, },
 	{ .parse_prop = parse_regulators, },
-- 
2.7.4

Re: [PATCH] of: property: Add fw_devlink support for pwms

[Saravana Kannan]

On Thu, May 27, 2021 at 1:09 AM Orson Zhai <orsonzhai@gmail.com> wrote:
>
> From: Orson Zhai <orson.zhai@unisoc.com>
>
> pwms is often required by backlight in embedded devices. Add device link
> support for pwms as well.
>
> Signed-off-by: Orson Zhai <orson.zhai@unisoc.com>
> ---
>  drivers/of/property.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/of/property.c b/drivers/of/property.c
> index 6c02863..93be977 100644
> --- a/drivers/of/property.c
> +++ b/drivers/of/property.c
> @@ -1287,6 +1287,7 @@ DEFINE_SIMPLE_PROP(pinctrl6, "pinctrl-6", NULL)
>  DEFINE_SIMPLE_PROP(pinctrl7, "pinctrl-7", NULL)
>  DEFINE_SIMPLE_PROP(pinctrl8, "pinctrl-8", NULL)
>  DEFINE_SIMPLE_PROP(remote_endpoint, "remote-endpoint", NULL)
> +DEFINE_SIMPLE_PROP(pwms, "pwms", NULL)
>  DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
>  DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
>
> @@ -1371,6 +1372,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
>         { .parse_prop = parse_pinctrl7, },
>         { .parse_prop = parse_pinctrl8, },
>         { .parse_prop = parse_remote_endpoint, .node_not_dev = true, },
> +       { .parse_prop = parse_pwms, },
>         { .parse_prop = parse_gpio_compat, },
>         { .parse_prop = parse_interrupts, },
>         { .parse_prop = parse_regulators, },

I already have a local patch for this and "reset" bindings. But I'm
holding off on adding support for new properties till fw_devlink=on
fully lands in 5.13. Trying to avoid inadvertently adding new
dependency issues. For example, the remote_endpoint binding I added to
fix one issue caused more dependency issues. So far I've fixed them
all.

So, yeah, temporary Nak for this.

-Saravana

Re: [PATCH] of: property: Add fw_devlink support for pwms

[Orson Zhai]

On Thu, May 27, 2021 at 02:04:30PM -0700, Saravana Kannan wrote:
> On Thu, May 27, 2021 at 1:09 AM Orson Zhai <orsonzhai@gmail.com> wrote:
> >
> > From: Orson Zhai <orson.zhai@unisoc.com>
> >
> > pwms is often required by backlight in embedded devices. Add device link
> > support for pwms as well.
> >
> > Signed-off-by: Orson Zhai <orson.zhai@unisoc.com>
> > ---
> >  drivers/of/property.c | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/of/property.c b/drivers/of/property.c
> > index 6c02863..93be977 100644
> > --- a/drivers/of/property.c
> > +++ b/drivers/of/property.c
> > @@ -1287,6 +1287,7 @@ DEFINE_SIMPLE_PROP(pinctrl6, "pinctrl-6", NULL)
> >  DEFINE_SIMPLE_PROP(pinctrl7, "pinctrl-7", NULL)
> >  DEFINE_SIMPLE_PROP(pinctrl8, "pinctrl-8", NULL)
> >  DEFINE_SIMPLE_PROP(remote_endpoint, "remote-endpoint", NULL)
> > +DEFINE_SIMPLE_PROP(pwms, "pwms", NULL)
> >  DEFINE_SUFFIX_PROP(regulators, "-supply", NULL)
> >  DEFINE_SUFFIX_PROP(gpio, "-gpio", "#gpio-cells")
> >
> > @@ -1371,6 +1372,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
> >         { .parse_prop = parse_pinctrl7, },
> >         { .parse_prop = parse_pinctrl8, },
> >         { .parse_prop = parse_remote_endpoint, .node_not_dev = true, },
> > +       { .parse_prop = parse_pwms, },
> >         { .parse_prop = parse_gpio_compat, },
> >         { .parse_prop = parse_interrupts, },
> >         { .parse_prop = parse_regulators, },
> 
> I already have a local patch for this and "reset" bindings. But I'm
> holding off on adding support for new properties till fw_devlink=on
> fully lands in 5.13. Trying to avoid inadvertently adding new
> dependency issues. For example, the remote_endpoint binding I added to
> fix one issue caused more dependency issues. So far I've fixed them
> all.

Got it. Good to know your plan.

> 
> So, yeah, temporary Nak for this.

No problem.

-Orson

> 
> -Saravana