From: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Nishanth Menon" <nm-l0cyMroinI0@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Paul Walmsley" <paul-DWxLp4Yu+b8AvxtiuMwx3w@public.gmane.org>,
"Dave Gerlach" <d-gerlach-l0cyMroinI0@public.gmane.org>,
"Tomi Valkeinen" <tomi.valkeinen-l0cyMroinI0@public.gmane.org>,
"Matthijs van Duin"
<matthijsvanduin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Liam Girdwood"
<lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Tero Kristo" <t-kristo-l0cyMroinI0@public.gmane.org>,
"Mark Brown" <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"Sakari Ailus" <sakari.ailus-X3B1VOXEql0@public.gmane.org>,
"Laurent Pinchart"
<laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>,
"Benoît Cousson"
<bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>,
"Mark Rutland" <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
"Mauro Carvalho Chehab"
<mchehab-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH 1/9] dt-bindings: ti-sysc: Update binding for timers and capabilities
Date: Sat, 16 Dec 2017 12:31:04 -0600 [thread overview]
Message-ID: <20171216183059.ipsftfnvsyamv6fd@rob-hp-laptop> (raw)
In-Reply-To: <20171215180900.3243-2-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
On Fri, Dec 15, 2017 at 10:08:52AM -0800, Tony Lindgren wrote:
> The ti-sysc binding does not yet describe the capabilities of the
> interconnect target module. So to make the ti-sysc binding usable
> for configuring the interconnect target module, we need to add few
> more properties:
>
> 1. To detect between omap2 and omap4 timers, let's add compatibles
> for them for "ti,sysc-omap2-timer" and,sysc-omap4-timer". This
> makes it easier to pick up the already initialized system timers
> later on
>
> 2. Let's add "ti,sysc-mask" for a mask of features supported by the
> interconnect target module. This describes what we have available
> in the various SYSCONFIG registers
>
> 3. Let's add "ti,sysc-midle" and "ti,sysc-sidle" lists for the master
> and slave idle modes supported by the interconnect target module.
> These describe the values available for MIDLE and SIDLE bits in
> the SYSCONFIG registers
>
> 4. Some interconnect target modules need a short delay after reset
> before they can be accessed, let's use "ti,sysc-delay-us" for
> that
>
> 5. Let's add "ti,syss-mask" bit to describe the optional SYSSTATUS
> register bits for reset done bits
>
> 6. Let's support the two existing custom quirk properties already
> listed in Documentation/devicetree/bindings/arm/omap/omap.txt for
> "ti,no-reset-on-init" and "ti,no-idle-on-init"
>
> 7. And finally, let's add a header for the binding for the dts
> files and the driver to use
>
> Cc: Benoît Cousson <bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
> Cc: Dave Gerlach <d-gerlach-l0cyMroinI0@public.gmane.org>
> Cc: Laurent Pinchart <laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>
> Cc: Liam Girdwood <lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
> Cc: Mauro Carvalho Chehab <mchehab-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
> Cc: Matthijs van Duin <matthijsvanduin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Paul Walmsley <paul-DWxLp4Yu+b8AvxtiuMwx3w@public.gmane.org>
> Cc: Peter Ujfalusi <peter.ujfalusi-l0cyMroinI0@public.gmane.org>
> Cc: Sakari Ailus <sakari.ailus-X3B1VOXEql0@public.gmane.org>
> Cc: Suman Anna <s-anna-l0cyMroinI0@public.gmane.org>
> Cc: Tero Kristo <t-kristo-l0cyMroinI0@public.gmane.org>
> Cc: Tomi Valkeinen <tomi.valkeinen-l0cyMroinI0@public.gmane.org>
> Signed-off-by: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
> ---
> Documentation/devicetree/bindings/bus/ti-sysc.txt | 36 +++++++++++++++++++++++
> include/dt-bindings/bus/ti-sysc.h | 22 ++++++++++++++
> 2 files changed, 58 insertions(+)
> create mode 100644 include/dt-bindings/bus/ti-sysc.h
>
> diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.txt b/Documentation/devicetree/bindings/bus/ti-sysc.txt
> --- a/Documentation/devicetree/bindings/bus/ti-sysc.txt
> +++ b/Documentation/devicetree/bindings/bus/ti-sysc.txt
> @@ -26,6 +26,8 @@ Required standard properties:
> or one of the following derivative types for hardware
> needing special workarounds:
>
> + "ti,sysc-omap2-timer"
> + "ti,sysc-omap4-timer"
> "ti,sysc-omap3430-sr"
> "ti,sysc-omap3630-sr"
> "ti,sysc-omap4-sr"
> @@ -49,6 +51,26 @@ Required standard properties:
>
> Optional properties:
>
> +- ti,sysc-mask shall contain mask of supported register bits for the
> + SYSCONFIG register as documented in the Technical Reference
> + Manual (TRM) for the interconnect target module
> +
> +- ti,sysc-midle list of master idle modes supported by the interconnect
> + target module as documented in the TRM for SYSCONFIG
> + register MIDLEMODE bits
> +
> +- ti,sysc-sidle list of slave idle modes supported by the interconnect
> + target module as documented in the TRM for SYSCONFIG
> + register SIDLEMODE bits
> +
> +- ti,sysc-delay-us delay needed after OCP softreset before accssing
> + SYSCONFIG register again
> +
> +- ti,syss-mask optional mask of reset done status bits as described in the
> + TRM for SYSSTATUS registers, typically 1 with some devices
> + having separate reset done bits for children like OHCI and
> + EHCI
> +
Seems like a lot of this should be implied by specific compatible
strings.
Are the bits you've defined all of them or there's more?
Rob
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2017-12-16 18:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-15 18:08 [PATCH 0/9] Update ti-sysc driver to use dts for capabilities Tony Lindgren
2017-12-15 18:08 ` [PATCH 1/9] dt-bindings: ti-sysc: Update binding for timers and capabilities Tony Lindgren
[not found] ` <20171215180900.3243-2-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-12-16 18:31 ` Rob Herring [this message]
2017-12-16 19:22 ` Tony Lindgren
2017-12-20 18:10 ` Rob Herring
2017-12-21 15:29 ` Tony Lindgren
2017-12-15 18:08 ` [PATCH 2/9] ARM: dts: Add generic ti, sysc compatible in addition to the custom ones Tony Lindgren
[not found] ` <20171215180900.3243-3-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-12-16 18:34 ` Rob Herring
2017-12-16 19:54 ` Tony Lindgren
2017-12-15 18:08 ` [PATCH 3/9] ARM: OMAP2+: Move all omap_hwmod_sysc_fields to omap_hwmod_common_data.c Tony Lindgren
2017-12-15 18:08 ` [PATCH 5/9] bus: ti-sysc: Add register bits for interconnect target modules Tony Lindgren
2017-12-15 18:08 ` [PATCH 6/9] bus: ti-sysc: Detect i2c interconnect target module based on register layout Tony Lindgren
2017-12-15 18:08 ` [PATCH 8/9] bus: ti-sysc: Add parsing of module capabilities Tony Lindgren
[not found] ` <20171215180900.3243-1-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-12-15 18:08 ` [PATCH 4/9] bus: ti-sysc: Make omap_hwmod_sysc_fields into sysc_regbits platform data Tony Lindgren
2017-12-15 18:08 ` [PATCH 7/9] bus: ti-sysc: Handle module quirks based dts configuration Tony Lindgren
2017-12-15 18:09 ` [PATCH 9/9] ARM: dts: Update ti-sysc data for existing users Tony Lindgren
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171216183059.ipsftfnvsyamv6fd@rob-hp-laptop \
--to=robh-dgejt+ai2ygdnm+yrofe0a@public.gmane.org \
--cc=bcousson-rdvid1DuHRBWk0Htik3J/w@public.gmane.org \
--cc=broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=d-gerlach-l0cyMroinI0@public.gmane.org \
--cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org \
--cc=lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=mark.rutland-5wv7dgnIgG8@public.gmane.org \
--cc=matthijsvanduin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=mchehab-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=nm-l0cyMroinI0@public.gmane.org \
--cc=paul-DWxLp4Yu+b8AvxtiuMwx3w@public.gmane.org \
--cc=sakari.ailus-X3B1VOXEql0@public.gmane.org \
--cc=t-kristo-l0cyMroinI0@public.gmane.org \
--cc=tomi.valkeinen-l0cyMroinI0@public.gmane.org \
--cc=tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).