[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[Dianlong Li]

Introduce vendor prefix for whwave, Inc.
for SD3078 rtc device.

Signed-off-by: Dianlong Li <long17.cool@163.com>
---
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4b1a2a8..89403c7 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -423,6 +423,7 @@ vot	Vision Optical Technology Co., Ltd.
 wd	Western Digital Corp.
 wetek	WeTek Electronics, limited.
 wexler	Wexler
+whwave  Shenzhen whwave Electronics, Inc.
 wi2wi	Wi2Wi, Inc.
 winbond Winbond Electronics corp.
 winstar	Winstar Display Corp.
-- 
1.7.9.5

[PATCH 2/3] dt-bindings: rtc: sd3078: add device tree documentation

[Dianlong Li]

The devicetree documentation for the SD3078 device tree.

Signed-off-by: Dianlong Li <long17.cool@163.com>
---
 Documentation/devicetree/bindings/rtc/rtc.txt |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/rtc/rtc.txt b/Documentation/devicetree/bindings/rtc/rtc.txt
index 7c8da69..e46edab 100644
--- a/Documentation/devicetree/bindings/rtc/rtc.txt
+++ b/Documentation/devicetree/bindings/rtc/rtc.txt
@@ -62,3 +62,4 @@ ricoh,rs5c372b		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
 ricoh,rv5c386		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
 ricoh,rv5c387a		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
 sii,s35390a		2-wire CMOS real-time clock
+whwave,sd3078		I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
-- 
1.7.9.5

Re: [PATCH 2/3] dt-bindings: rtc: sd3078: add device tree documentation

[Rob Herring]

On Thu, 13 Dec 2018 18:13:49 +0800, Dianlong Li wrote:
> The devicetree documentation for the SD3078 device tree.
> 
> Signed-off-by: Dianlong Li <long17.cool@163.com>
> ---
>  Documentation/devicetree/bindings/rtc/rtc.txt |    1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[PATCH 3/3] rtc: sd3078: new driver.

[Dianlong Li]

The sd3078 is a combination RTC and SRAM device with I2C interface.

Signed-off-by: Dianlong Li <long17.cool@163.com>
---
 MAINTAINERS              |    6 ++
 drivers/rtc/Kconfig      |    9 ++
 drivers/rtc/Makefile     |    1 +
 drivers/rtc/rtc-sd3078.c |  232 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 248 insertions(+)
 create mode 100644 drivers/rtc/rtc-sd3078.c

diff --git a/MAINTAINERS b/MAINTAINERS
index f485597..2ad8671 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16125,6 +16125,12 @@ L:	linux-gpio@vger.kernel.org
 S:	Maintained
 F:	drivers/gpio/gpio-wcove.c
 
+WHWAVE RTC DRIVER
+M:	Dianlong Li <long17.cool@163.com>
+L:	linux-rtc@vger.kernel.org
+S:	Maintained
+F:	drivers/rtc/rtc-sd3078.c
+
 WIIMOTE HID DRIVER
 M:	David Herrmann <dh.herrmann@googlemail.com>
 L:	linux-input@vger.kernel.org
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index a819ef0..51a8255b 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -646,6 +646,15 @@ config RTC_DRV_S5M
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-s5m.
 
+config RTC_DRV_SD3078
+    tristate "ZXW Crystal SD3078"
+    help
+      If you say yes here you get support for the ZXW Crystal
+      SD3078 RTC chips.
+
+      This driver can also be built as a module. If so, the module
+      will be called rtc-sd3078
+
 endif # I2C
 
 comment "SPI RTC drivers"
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 290c173..91a9257 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -148,6 +148,7 @@ obj-$(CONFIG_RTC_DRV_S3C)	+= rtc-s3c.o
 obj-$(CONFIG_RTC_DRV_S5M)	+= rtc-s5m.o
 obj-$(CONFIG_RTC_DRV_SA1100)	+= rtc-sa1100.o
 obj-$(CONFIG_RTC_DRV_SC27XX)	+= rtc-sc27xx.o
+obj-$(CONFIG_RTC_DRV_SD3078)   += rtc-sd3078.o
 obj-$(CONFIG_RTC_DRV_SH)	+= rtc-sh.o
 obj-$(CONFIG_RTC_DRV_SIRFSOC)	+= rtc-sirfsoc.o
 obj-$(CONFIG_RTC_DRV_SNVS)	+= rtc-snvs.o
diff --git a/drivers/rtc/rtc-sd3078.c b/drivers/rtc/rtc-sd3078.c
new file mode 100644
index 0000000..a70d7311
--- /dev/null
+++ b/drivers/rtc/rtc-sd3078.c
@@ -0,0 +1,232 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Real Time Clock (RTC) Driver for sd3078
+ * Copyright (C) 2018 Zoro Li
+ */
+
+#include <linux/bcd.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/rtc.h>
+#include <linux/slab.h>
+
+#define SD3078_REG_SC			0x00
+#define SD3078_REG_MN			0x01
+#define SD3078_REG_HR			0x02
+#define SD3078_REG_DW			0x03
+#define SD3078_REG_DM			0x04
+#define SD3078_REG_MO			0x05
+#define SD3078_REG_YR			0x06
+
+#define SD3078_REG_CTRL1		0x0f
+#define SD3078_REG_CTRL2		0x10
+#define SD3078_REG_CTRL3		0x11
+
+#define KEY_WRITE1		0x80
+#define KEY_WRITE2		0x04
+#define KEY_WRITE3		0x80
+
+#define NUM_TIME_REGS   (SD3078_REG_YR - SD3078_REG_SC + 1)
+
+/*
+ * The sd3078 has write protection
+ * and we can choose whether or not to use it.
+ * Write protection is turned off by default.
+ */
+#define WRITE_PROTECT_EN	0
+
+struct sd3078 {
+	struct rtc_device	*rtc;
+	struct regmap		*regmap;
+};
+
+/*
+ * In order to prevent arbitrary modification of the time register,
+ * when modification of the register,
+ * the "write" bit needs to be written in a certain order.
+ * 1. set WRITE1 bit
+ * 2. set WRITE2 bit
+ * 3. set WRITE3 bit
+ */
+static void sd3078_enable_reg_write(struct sd3078 *sd3078)
+{
+	regmap_update_bits(sd3078->regmap, SD3078_REG_CTRL2,
+			   KEY_WRITE1, KEY_WRITE1);
+	regmap_update_bits(sd3078->regmap, SD3078_REG_CTRL1,
+			   KEY_WRITE2, KEY_WRITE2);
+	regmap_update_bits(sd3078->regmap, SD3078_REG_CTRL1,
+			   KEY_WRITE3, KEY_WRITE3);
+}
+
+#if WRITE_PROTECT_EN
+/*
+ * In order to prevent arbitrary modification of the time register,
+ * we should disable the write function.
+ * when disable write,
+ * the "write" bit needs to be clear in a certain order.
+ * 1. clear WRITE2 bit
+ * 2. clear WRITE3 bit
+ * 3. clear WRITE1 bit
+ */
+static void sd3078_disable_reg_write(struct sd3078 *sd3078)
+{
+	regmap_update_bits(sd3078->regmap, SD3078_REG_CTRL1,
+			   KEY_WRITE2, 0);
+	regmap_update_bits(sd3078->regmap, SD3078_REG_CTRL1,
+			   KEY_WRITE3, 0);
+	regmap_update_bits(sd3078->regmap, SD3078_REG_CTRL2,
+			   KEY_WRITE1, 0);
+}
+#endif
+
+static int sd3078_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned char hour;
+	unsigned char rtc_data[NUM_TIME_REGS] = {0};
+	struct i2c_client *client = to_i2c_client(dev);
+	struct sd3078 *sd3078 = i2c_get_clientdata(client);
+	int ret;
+
+	ret = regmap_bulk_read(sd3078->regmap, SD3078_REG_SC, rtc_data,
+			       NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "reading from RTC failed with err:%d\n", ret);
+		return ret;
+	}
+
+	tm->tm_sec	= bcd2bin(rtc_data[SD3078_REG_SC] & 0x7F);
+	tm->tm_min	= bcd2bin(rtc_data[SD3078_REG_MN] & 0x7F);
+
+	/*
+	 * The sd3078 supports 12/24 hour mode.
+	 * When getting time,
+	 * we need to convert the 12 hour mode to the 24 hour mode.
+	 */
+	hour = rtc_data[SD3078_REG_HR];
+	if (hour & 0x80) /* 24H MODE */
+		tm->tm_hour = bcd2bin(rtc_data[SD3078_REG_HR] & 0x3F);
+	else if (hour & 0x20) /* 12H MODE PM */
+		tm->tm_hour = bcd2bin(rtc_data[SD3078_REG_HR] & 0x1F) + 12;
+	else /* 12H MODE AM */
+		tm->tm_hour = bcd2bin(rtc_data[SD3078_REG_HR] & 0x1F);
+
+	tm->tm_mday = bcd2bin(rtc_data[SD3078_REG_DM] & 0x3F);
+	tm->tm_wday = rtc_data[SD3078_REG_DW] & 0x07;
+	tm->tm_mon	= bcd2bin(rtc_data[SD3078_REG_MO] & 0x1F) - 1;
+	tm->tm_year = bcd2bin(rtc_data[SD3078_REG_YR]) + 100;
+
+	return 0;
+}
+
+static int sd3078_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned char rtc_data[NUM_TIME_REGS];
+	struct i2c_client *client = to_i2c_client(dev);
+	struct sd3078 *sd3078 = i2c_get_clientdata(client);
+	int ret;
+
+	rtc_data[SD3078_REG_SC] = bin2bcd(tm->tm_sec);
+	rtc_data[SD3078_REG_MN] = bin2bcd(tm->tm_min);
+	rtc_data[SD3078_REG_HR] = bin2bcd(tm->tm_hour) | 0x80;
+	rtc_data[SD3078_REG_DM] = bin2bcd(tm->tm_mday);
+	rtc_data[SD3078_REG_DW] = tm->tm_wday & 0x07;
+	rtc_data[SD3078_REG_MO] = bin2bcd(tm->tm_mon) + 1;
+	rtc_data[SD3078_REG_YR] = bin2bcd(tm->tm_year - 100);
+
+#if WRITE_PROTECT_EN
+	sd3078_enable_reg_write(sd3078);
+#endif
+
+	ret = regmap_bulk_write(sd3078->regmap, SD3078_REG_SC, rtc_data,
+				NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "writing to RTC failed with err:%d\n", ret);
+		return ret;
+	}
+
+#if WRITE_PROTECT_EN
+	sd3078_disable_reg_write(sd3078);
+#endif
+
+	return 0;
+}
+
+static const struct rtc_class_ops sd3078_rtc_ops = {
+	.read_time	= sd3078_rtc_read_time,
+	.set_time	= sd3078_rtc_set_time,
+};
+
+static const struct regmap_config regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = 0x11,
+};
+
+static int sd3078_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	int ret;
+	struct sd3078 *sd3078;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+		return -ENODEV;
+
+	sd3078 = devm_kzalloc(&client->dev, sizeof(*sd3078), GFP_KERNEL);
+	if (!sd3078)
+		return -ENOMEM;
+
+	sd3078->regmap = devm_regmap_init_i2c(client, &regmap_config);
+	if (IS_ERR(sd3078->regmap)) {
+		dev_err(&client->dev, "regmap allocation failed\n");
+		return PTR_ERR(sd3078->regmap);
+	}
+
+	i2c_set_clientdata(client, sd3078);
+
+	sd3078->rtc = devm_rtc_allocate_device(&client->dev);
+	if (IS_ERR(sd3078->rtc))
+		return PTR_ERR(sd3078->rtc);
+
+	sd3078->rtc->ops = &sd3078_rtc_ops;
+	sd3078->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+	sd3078->rtc->range_max = RTC_TIMESTAMP_END_2099;
+
+	ret = rtc_register_device(sd3078->rtc);
+	if (ret) {
+		dev_err(&client->dev, "failed to register rtc device\n");
+		return ret;
+	}
+
+	sd3078_enable_reg_write(sd3078);
+
+	return 0;
+}
+
+static const struct i2c_device_id sd3078_id[] = {
+	{"sd3078", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, sd3078_id);
+
+static const struct of_device_id rtc_dt_match[] = {
+	{ .compatible = "whwave,sd3078" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, rtc_dt_match);
+
+struct i2c_driver sd3078_driver = {
+	.driver     = {
+		.name   = "sd3078",
+		.owner  = THIS_MODULE,
+		.of_match_table = of_match_ptr(rtc_dt_match),
+	},
+	.probe      = sd3078_probe,
+	.id_table   = sd3078_id,
+};
+
+module_i2c_driver(sd3078_driver);
+
+MODULE_AUTHOR("Dianlong Li <long17.cool@163.com>");
+MODULE_DESCRIPTION("SD3078 RTC driver");
+MODULE_LICENSE("GPL v2");
-- 
1.7.9.5

Re: [PATCH 3/3] rtc: sd3078: new driver.

[Alexandre Belloni]

On 13/12/2018 18:13:50+0800, Dianlong Li wrote:
> The sd3078 is a combination RTC and SRAM device with I2C interface.
> 
> Signed-off-by: Dianlong Li <long17.cool@163.com>
> ---
>  MAINTAINERS              |    6 ++
>  drivers/rtc/Kconfig      |    9 ++
>  drivers/rtc/Makefile     |    1 +
>  drivers/rtc/rtc-sd3078.c |  232 ++++++++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 248 insertions(+)
>  create mode 100644 drivers/rtc/rtc-sd3078.c
> 

All applied, thanks.

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

Re: [PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[Rob Herring]

On Thu, 13 Dec 2018 18:13:48 +0800, Dianlong Li wrote:
> Introduce vendor prefix for whwave, Inc.
> for SD3078 rtc device.
> 
> Signed-off-by: Dianlong Li <long17.cool@163.com>
> ---
>  .../devicetree/bindings/vendor-prefixes.txt        |    1 +
>  1 file changed, 1 insertion(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[zoro]

Introduce vendor prefix for whwave, Inc.
for SD3078 rtc device.

Signed-off-by: zoro <long17.cool@163.com>
---
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4b1a2a8..7d2e9b01 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -423,6 +423,7 @@ vot	Vision Optical Technology Co., Ltd.
 wd	Western Digital Corp.
 wetek	WeTek Electronics, limited.
 wexler	Wexler
+whwave	Shenzhen whwave Electronics crop
 wi2wi	Wi2Wi, Inc.
 winbond Winbond Electronics corp.
 winstar	Winstar Display Corp.
-- 
1.7.9.5

Re: [PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[Rob Herring]

On Fri, Nov 23, 2018 at 06:14:42PM +0800, zoro wrote:
> Introduce vendor prefix for whwave, Inc.
> for SD3078 rtc device.
> 
> Signed-off-by: zoro <long17.cool@163.com>

Need a full name.

> ---
>  .../devicetree/bindings/vendor-prefixes.txt        |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index 4b1a2a8..7d2e9b01 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -423,6 +423,7 @@ vot	Vision Optical Technology Co., Ltd.
>  wd	Western Digital Corp.
>  wetek	WeTek Electronics, limited.
>  wexler	Wexler
> +whwave	Shenzhen whwave Electronics crop

crop or Corp?

>  wi2wi	Wi2Wi, Inc.
>  winbond Winbond Electronics corp.
>  winstar	Winstar Display Corp.
> -- 
> 1.7.9.5
> 
> 

Re: [PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[Rob Herring]

On Tue, Dec 11, 2018 at 03:37:08PM -0600, Rob Herring wrote:
> On Fri, Nov 23, 2018 at 06:14:42PM +0800, zoro wrote:
> > Introduce vendor prefix for whwave, Inc.
> > for SD3078 rtc device.
> > 
> > Signed-off-by: zoro <long17.cool@163.com>
> 
> Need a full name.
> 
> > ---
> >  .../devicetree/bindings/vendor-prefixes.txt        |    1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> > index 4b1a2a8..7d2e9b01 100644
> > --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> > +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> > @@ -423,6 +423,7 @@ vot	Vision Optical Technology Co., Ltd.
> >  wd	Western Digital Corp.
> >  wetek	WeTek Electronics, limited.
> >  wexler	Wexler
> > +whwave	Shenzhen whwave Electronics crop
> 
> crop or Corp?

Or Inc as the subject and commit msg say?

> 
> >  wi2wi	Wi2Wi, Inc.
> >  winbond Winbond Electronics corp.
> >  winstar	Winstar Display Corp.
> > -- 
> > 1.7.9.5
> > 
> > 

[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[zoro]

Introduce vendor prefix for whwave, Inc.
for SD3078 rtc device.

Signed-off-by: zoro <long17.cool@163.com>
---
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4b1a2a8..7d2e9b01 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -423,6 +423,7 @@ vot	Vision Optical Technology Co., Ltd.
 wd	Western Digital Corp.
 wetek	WeTek Electronics, limited.
 wexler	Wexler
+whwave	Shenzhen whwave Electronics crop
 wi2wi	Wi2Wi, Inc.
 winbond Winbond Electronics corp.
 winstar	Winstar Display Corp.
-- 
1.7.9.5

[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[zoro]

Introduce vendor prefix for whwave, Inc.
for SD3078 rtc device.

Signed-off-by: zoro <long17.cool@163.com>
---
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4b1a2a8..7d2e9b01 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -423,6 +423,7 @@ vot	Vision Optical Technology Co., Ltd.
 wd	Western Digital Corp.
 wetek	WeTek Electronics, limited.
 wexler	Wexler
+whwave	Shenzhen whwave Electronics crop
 wi2wi	Wi2Wi, Inc.
 winbond Winbond Electronics corp.
 winstar	Winstar Display Corp.
-- 
1.7.9.5

[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[zoro]

Introduce vendor prefix for whwave, Inc.
for SD3078 rtc device.

Signed-off-by: zoro <long17.cool@163.com>
---
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4b1a2a8..3d59d6a 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -440,3 +440,4 @@ zidoo	Shenzhen Zidoo Technology Co., Ltd.
 zii	Zodiac Inflight Innovations
 zte	ZTE Corp.
 zyxel	ZyXEL Communications Corp.
+whwave	Shenzhen whwave Electronics crop
-- 
1.7.9.5

Re: [PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[Alexandre Belloni]

Hello,

On 10/11/2018 16:43:51+0800, zoro wrote:
> Introduce vendor prefix for whwave, Inc.
> for SD3078 rtc device.
> 
> Signed-off-by: zoro <long17.cool@163.com>
> ---
>  .../devicetree/bindings/vendor-prefixes.txt        |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
> index 4b1a2a8..3d59d6a 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
> @@ -440,3 +440,4 @@ zidoo	Shenzhen Zidoo Technology Co., Ltd.
>  zii	Zodiac Inflight Innovations
>  zte	ZTE Corp.
>  zyxel	ZyXEL Communications Corp.
> +whwave	Shenzhen whwave Electronics crop

This file must be sorted alphabetically.

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

[PATCH 1/3] dt-bindings: define vendor prefix for whwave, Inc.

[zoro]

Introduce vendor prefix for whwave, Inc.
for SD3078 rtc device.

Signed-off-by: zoro <long17.cool@163.com>
---
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4b1a2a8..3d59d6a 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -440,3 +440,4 @@ zidoo	Shenzhen Zidoo Technology Co., Ltd.
 zii	Zodiac Inflight Innovations
 zte	ZTE Corp.
 zyxel	ZyXEL Communications Corp.
+whwave	Shenzhen whwave Electronics crop
-- 
1.7.9.5