From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Tue, 5 May 2020 20:13:09 +0000 (+0200)
Subject: rtc: pcf2127: set regmap max_register
X-Git-Tag: v5.8-rc1~100^2~20
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=040e6dc0911c86add1ec3140432672e626b9d4ae;p=thirdparty%2Fkernel%2Flinux.git

rtc: pcf2127: set regmap max_register

Set regmap max_register to ease debugging and enforce the register range.

Link: https://lore.kernel.org/r/20200505201310.255145-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---

diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
index 5ac9965785238..039078029bd42 100644
--- a/drivers/rtc/rtc-pcf2127.c
+++ b/drivers/rtc/rtc-pcf2127.c
@@ -634,6 +634,7 @@ static int pcf2127_i2c_probe(struct i2c_client *client,
 	static const struct regmap_config config = {
 		.reg_bits = 8,
 		.val_bits = 8,
+		.max_register = 0x1d,
 	};
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
@@ -701,6 +702,7 @@ static int pcf2127_spi_probe(struct spi_device *spi)
 		.val_bits = 8,
 		.read_flag_mask = 0xa0,
 		.write_flag_mask = 0x20,
+		.max_register = 0x1d,
 	};
 	struct regmap *regmap;