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Message-Id: <20190903023038.16921-1-biwen.li@nxp.com>
Date: Tue, 3 Sep 2019 10:30:37 +0800
From: Biwen Li <biwen.li@....com>
To: a.zummo@...ertech.it, alexandre.belloni@...tlin.com,
robh+dt@...nel.org, mark.rutland@....com, leoyang.li@....com
Cc: linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, Biwen Li <biwen.li@....com>,
Martin Fuzzey <mfuzzey@...keon.com>
Subject: [v2,1/2] dt-bindings: rtc: pcf85263/pcf85363: add some properties
Add some properties for pcf85263/pcf85363 as follows:
- interrupt-output-pin: string type
- quartz-load-femtofarads: integer type
- nxp,quartz-drive-strength: integer type
- nxp,quartz-low-jitter: bool type
- wakeup-source: bool type
Signed-off-by: Martin Fuzzey <mfuzzey@...keon.com>
Signed-off-by: Biwen Li <biwen.li@....com>
---
Change in v2:
- Replace properties name
quartz-load-capacitance -> quartz-load-femtofarads
quartz-drive-strength -> nxp,quartz-drive-strength
quartz-low-jitter -> nxp,quartz-low-jitter
- Replace drive strength name
PCF85263_QUARTZDRIVE_NORMAL -> PCF85263_QUARTZDRIVE_100ko
PCF85263_QUARTZDRIVE_LOW -> PCF85263_QUARTZDRIVE_60ko
PCF85263_QUARTZDRIVE_HIGH -> PCF85263_QUARTZDRIVE_500ko
- Set default interrupt-output-pin as "INTA"
.../devicetree/bindings/rtc/pcf85363.txt | 29 +++++++++++++++++++
include/dt-bindings/rtc/pcf85363.h | 15 ++++++++++
2 files changed, 44 insertions(+)
create mode 100644 include/dt-bindings/rtc/pcf85363.h
diff --git a/Documentation/devicetree/bindings/rtc/pcf85363.txt b/Documentation/devicetree/bindings/rtc/pcf85363.txt
index 94adc1cf93d9..588f688b30d1 100644
--- a/Documentation/devicetree/bindings/rtc/pcf85363.txt
+++ b/Documentation/devicetree/bindings/rtc/pcf85363.txt
@@ -8,10 +8,39 @@ Required properties:
Optional properties:
- interrupts: IRQ line for the RTC (not implemented).
+- interrupt-output-pin: The interrupt output pin must be
+ "INTA" or "INTB", default value is "INTA"
+
+- quartz-load-femtofarads: The internal capacitor to select for the quartz:
+ PCF85263_QUARTZCAP_7pF [0]
+ PCF85263_QUARTZCAP_6pF [1]
+ PCF85263_QUARTZCAP_12p5pF [2] DEFAULT
+
+- nxp,quartz-drive-strength: Drive strength for the quartz:
+ PCF85263_QUARTZDRIVE_100ko [0] DEFAULT
+ PCF85263_QUARTZDRIVE_60ko [1]
+ PCF85263_QUARTZDRIVE_500ko [2]
+
+- nxp,quartz-low-jitter: Boolean property, if present enables low jitter mode
+ which reduces jitter at the cost of increased power consumption.
+
+- wakeup-source: Boolean property, Please refer to
+ Documentation/devicetree/bindings/power/wakeup-source.txt
+
Example:
pcf85363: pcf85363@51 {
compatible = "nxp,pcf85363";
reg = <0x51>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+
+ #include <dt-bindings/rtc/pcf85363.h>
+ wakeup-source;
+ interrupt-output-pin = "INTA";
+ quartz-load-femtofarads = <PCF85363_QUARTZCAP_12p5pF>;
+ nxp,quartz-drive-strength = <PCF85363_QUARTZDRIVE_60ko>;
+ nxp,quartz-low-jitter;
};
diff --git a/include/dt-bindings/rtc/pcf85363.h b/include/dt-bindings/rtc/pcf85363.h
new file mode 100644
index 000000000000..f71b151bc481
--- /dev/null
+++ b/include/dt-bindings/rtc/pcf85363.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _DT_BINDINGS_RTC_PCF85363_H
+#define _DT_BINDINGS_RTC_PCF85363_H
+
+/* Quartz capacitance */
+#define PCF85363_QUARTZCAP_7pF 0
+#define PCF85363_QUARTZCAP_6pF 1
+#define PCF85363_QUARTZCAP_12p5pF 2
+
+/* Quartz drive strength */
+#define PCF85363_QUARTZDRIVE_100ko 0
+#define PCF85363_QUARTZDRIVE_60ko 1
+#define PCF85363_QUARTZDRIVE_500ko 2
+
+#endif /* _DT_BINDINGS_RTC_PCF85363_H */
--
2.17.1
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