linux-kernel - [PATCH] rtc: pcf2123: Add Microcrystal rv2123

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Message-Id: <20181218214223.15981-1-alexandre.belloni@bootlin.com>
Date:   Tue, 18 Dec 2018 22:42:23 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     linux-rtc@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH] rtc: pcf2123: Add Microcrystal rv2123

Add a compatible string for Microcrystal rv2123 as the reset procedure seem
to be differing. However, the current driver works just fine.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt | 1 +
 drivers/rtc/rtc-pcf2123.c                              | 1 +
 2 files changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt b/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt
index 811124a36d16..1994f601800a 100644
--- a/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt
+++ b/Documentation/devicetree/bindings/rtc/nxp,rtc-2123.txt
@@ -2,6 +2,7 @@ NXP PCF2123 SPI Real Time Clock
 
 Required properties:
 - compatible: should be: "nxp,rtc-pcf2123"
+                      or "microcrystal,rv2123"
 - reg: should be the SPI slave chipselect address
 
 Optional properties:
diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index e5222c5d8223..39da8b214275 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -453,6 +453,7 @@ static int pcf2123_remove(struct spi_device *spi)
 #ifdef CONFIG_OF
 static const struct of_device_id pcf2123_dt_ids[] = {
 	{ .compatible = "nxp,rtc-pcf2123", },
+	{ .compatible = "microcrystal,rv2123", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, pcf2123_dt_ids);
-- 
2.20.0