diff mbox

[v9,09/10] rtc: at91sam9: add DT bindings documentation

Message ID 1411483725-31532-10-git-send-email-boris.brezillon@free-electrons.com
State Accepted, archived
Commit 2c91e61dc97cce57ffd9dd654a6ee284e1f45a1f
Headers show

Commit Message

Boris Brezillon Sept. 23, 2014, 2:48 p.m. UTC 
Add RTT bindings documentation.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Johan Hovold <johan@kernel.org>
---
 .../devicetree/bindings/rtc/atmel,at91sam9-rtc.txt | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt

Comments

Arnd Bergmann Sept. 23, 2014, 4:30 p.m. UTC | #1 
On Tuesday 23 September 2014 16:48:44 Boris BREZILLON wrote:
> Add RTT bindings documentation.
> 
> Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
> Acked-by: Johan Hovold <johan@kernel.org>
> 

Acked-by: Arnd Bergmann <arnd@arndb.de>
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Boris Brezillon Sept. 23, 2014, 5:17 p.m. UTC | #2 
On Tue, 23 Sep 2014 18:30:59 +0200
Arnd Bergmann <arnd@arndb.de> wrote:

> On Tuesday 23 September 2014 16:48:44 Boris BREZILLON wrote:
> > Add RTT bindings documentation.
> > 
> > Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
> > Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
> > Acked-by: Johan Hovold <johan@kernel.org>
> > 
> 
> Acked-by: Arnd Bergmann <arnd@arndb.de>

Sorry, I forgot to add your ack on this patch.
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt b/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt
new file mode 100644
index 0000000..6ae79d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/atmel,at91sam9-rtc.txt
@@ -0,0 +1,23 @@ 
+Atmel AT91SAM9260 Real Time Timer
+
+Required properties:
+- compatible: should be: "atmel,at91sam9260-rtt"
+- reg: should encode the memory region of the RTT controller
+- interrupts: rtt alarm/event interrupt
+- clocks: should contain the 32 KHz slow clk that will drive the RTT block.
+- atmel,rtt-rtc-time-reg: should encode the GPBR register used to store
+	the time base when the RTT is used as an RTC.
+	The first cell should point to the GPBR node and the second one
+	encode the offset within the GPBR block (or in other words, the
+	GPBR register used to store the time base).
+
+
+Example:
+
+rtt@fffffd20 {
+	compatible = "atmel,at91sam9260-rtt";
+	reg = <0xfffffd20 0x10>;
+	interrupts = <1 4 7>;
+	clocks = <&clk32k>;
+	atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
+};