linux-kernel - [PATCH] rtc: jz4740: Add support for the JZ4725B, JZ4760, JZ4770

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Date:   Fri, 13 Jul 2018 17:14:24 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH] rtc: jz4740: Add support for the JZ4725B, JZ4760, JZ4770

The RTC in the JZ4725B works just like the one in the JZ4740.

The RTC in the JZ4760 and JZ4770 work just like the one in the JZ4780.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt |  3 +++
 drivers/rtc/rtc-jz4740.c                                     | 11 ++++++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt b/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
index 41c7ae18fd7b..a9e821de84f2 100644
--- a/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/ingenic,jz4740-rtc.txt
@@ -4,6 +4,9 @@ Required properties:
 
 - compatible: One of:
   - "ingenic,jz4740-rtc" - for use with the JZ4740 SoC
+  - "ingenic,jz4725b-rtc" - for use with the JZ4725B SoC
+  - "ingenic,jz4760-rtc" - for use with the JZ4760 SoC
+  - "ingenic,jz4770-rtc" - for use with the JZ4770 SoC
   - "ingenic,jz4780-rtc" - for use with the JZ4780 SoC
 - reg: Address range of rtc register set
 - interrupts: IRQ number for the alarm interrupt
diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index d0a891777f44..1c867e3a0ea5 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -54,6 +54,9 @@
 
 enum jz4740_rtc_type {
 	ID_JZ4740,
+	ID_JZ4725B,
+	ID_JZ4760,
+	ID_JZ4770,
 	ID_JZ4780,
 };
 
@@ -114,7 +117,7 @@ static inline int jz4740_rtc_reg_write(struct jz4740_rtc *rtc, size_t reg,
 {
 	int ret = 0;
 
-	if (rtc->type >= ID_JZ4780)
+	if (rtc->type >= ID_JZ4760)
 		ret = jz4780_rtc_enable_write(rtc);
 	if (ret == 0)
 		ret = jz4740_rtc_wait_write_ready(rtc);
@@ -300,6 +303,9 @@ static void jz4740_rtc_power_off(void)
 
 static const struct of_device_id jz4740_rtc_of_match[] = {
 	{ .compatible = "ingenic,jz4740-rtc", .data = (void *)ID_JZ4740 },
+	{ .compatible = "ingenic,jz4725b-rtc", .data = (void *)ID_JZ4725B },
+	{ .compatible = "ingenic,jz4760-rtc", .data = (void *)ID_JZ4760 },
+	{ .compatible = "ingenic,jz4770-rtc", .data = (void *)ID_JZ4770 },
 	{ .compatible = "ingenic,jz4780-rtc", .data = (void *)ID_JZ4780 },
 	{},
 };
@@ -428,6 +434,9 @@ static const struct dev_pm_ops jz4740_pm_ops = {
 
 static const struct platform_device_id jz4740_rtc_ids[] = {
 	{ "jz4740-rtc", ID_JZ4740 },
+	{ "jz4725b-rtc", ID_JZ4725B },
+	{ "jz4760-rtc", ID_JZ4760 },
+	{ "jz4770-rtc", ID_JZ4770 },
 	{ "jz4780-rtc", ID_JZ4780 },
 	{}
 };
-- 
2.11.0