From: Eric Anholt <eric@anholt.net>
To: Florian Fainelli <f.fainelli@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Guenter Roeck <linux@roeck-us.net>,
linux-watchdog@vger.kernel.org
Cc: linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefan Wahren <stefan.wahren@i2se.com>,
bcm-kernel-feedback-list@broadcom.com,
Eric Anholt <eric@anholt.net>
Subject: [PATCH v2 1/5] dt-bindings: soc: Add a new binding for the BCM2835 PM node.
Date: Tue, 20 Nov 2018 13:36:58 -0800 [thread overview]
Message-ID: <20181120213702.27958-2-eric@anholt.net> (raw)
In-Reply-To: <20181120213702.27958-1-eric@anholt.net>
This binding supersedes the bcm2835-pm-wdt binding which only covered
enough to provide a watchdog, but the HW block is actually mostly
about power domains.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
.../bindings/soc/bcm/brcm,bcm2835-pm.txt | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt
diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt
new file mode 100644
index 000000000000..7818d33a158f
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt
@@ -0,0 +1,42 @@
+BCM2835 PM (Power domains, watchdog)
+
+The PM block controls power domains and some reset lines, and includes
+a watchdog timer. This binding supersedes the brcm,bcm2835-pm-wdt
+binding which covered some of PM's register range and functionality.
+
+Required properties:
+
+- compatible: Should be "brcm,bcm2835-pm"
+- reg: Specifies base physical address and size of the two
+ register ranges ("PM" and "ASYNC_BRIDGE" in that
+ order)
+- clocks: a) v3d: The V3D clock from CPRMAN
+ b) peri_image: The PERI_IMAGE clock from CPRMAN
+ c) h264: The H264 clock from CPRMAN
+ d) isp: The ISP clock from CPRMAN
+- #reset-cells: Should be 1. This property follows the reset controller
+ bindings[1].
+- #power-domain-cells: Should be 1. This property follows the power domain
+ bindings[2].
+
+Optional properties:
+
+- timeout-sec: Contains the watchdog timeout in seconds
+
+[1] Documentation/devicetree/bindings/reset/reset.txt
+[2] Documentation/devicetree/bindings/power/power_domain.txt
+
+Example:
+
+pm {
+ compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
+ #power-domain-cells = <1>;
+ #reset-cells = <1>;
+ reg = <0x7e100000 0x114>,
+ <0x7e00a000 0x24>;
+ clocks = <&clocks BCM2835_CLOCK_V3D>,
+ <&clocks BCM2835_CLOCK_PERI_IMAGE>,
+ <&clocks BCM2835_CLOCK_H264>,
+ <&clocks BCM2835_CLOCK_ISP>;
+ clock-names = "v3d", "peri_image", "h264", "isp";
+};
--
2.19.1
next prev parent reply other threads:[~2018-11-20 21:37 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-20 21:36 [PATCH v2 0/5] BCM2835 PM driver (MFD version) Eric Anholt
2018-11-20 21:36 ` Eric Anholt [this message]
2018-11-20 21:36 ` [PATCH v2 2/5] bcm2835-pm: Move bcm2835-watchdog's DT probe to an MFD Eric Anholt
2018-11-22 20:47 ` Guenter Roeck
2018-11-20 21:37 ` [PATCH v2 3/5] soc: bcm: bcm2835-pm: Add support for power domains under a new binding Eric Anholt
2018-11-20 21:37 ` [PATCH v2 4/5] ARM: bcm283x: Extend the WDT DT node out to cover the whole PM block Eric Anholt
2018-11-20 21:37 ` [PATCH v2 5/5] ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware Eric Anholt
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=20181120213702.27958-2-eric@anholt.net \
--to=eric@anholt.net \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=f.fainelli@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=linux-watchdog@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
--cc=stefan.wahren@i2se.com \
--cc=wim@linux-watchdog.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).