From 973ef08456f8c6aea4672ae986dfe907b9e4fdc3 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Thu, 11 May 2023 19:56:06 +0200
Subject: rtc: ab-eoz9: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230511175609.282191-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-ab-eoz9.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-ab-eoz9.c b/drivers/rtc/rtc-ab-eoz9.c
index 34611f6dedcb..143650cb7822 100644
--- a/drivers/rtc/rtc-ab-eoz9.c
+++ b/drivers/rtc/rtc-ab-eoz9.c
@@ -455,7 +455,7 @@ static const struct hwmon_channel_info abeoz9_temp = {
 	.config = abeoz9_temp_config,
 };
 
-static const struct hwmon_channel_info *abeoz9_info[] = {
+static const struct hwmon_channel_info * const abeoz9_info[] = {
 	&abeoz9_chip,
 	&abeoz9_temp,
 	NULL
-- 
cgit v1.2.3


From d00caa55cecd3e833c21c9372fc558cb9f40a07f Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Thu, 11 May 2023 19:56:07 +0200
Subject: rtc: ds3232: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230511175609.282191-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-ds3232.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c
index dd31a60c1fc6..ce46016c9fd8 100644
--- a/drivers/rtc/rtc-ds3232.c
+++ b/drivers/rtc/rtc-ds3232.c
@@ -359,7 +359,7 @@ static const struct hwmon_channel_info ds3232_hwmon_temp = {
 	.config = ds3232_hwmon_temp_config,
 };
 
-static const struct hwmon_channel_info *ds3232_hwmon_info[] = {
+static const struct hwmon_channel_info * const ds3232_hwmon_info[] = {
 	&ds3232_hwmon_chip,
 	&ds3232_hwmon_temp,
 	NULL
-- 
cgit v1.2.3


From 303b1e894470421f7c5b6452937fc8c1f0f89075 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Thu, 11 May 2023 19:56:08 +0200
Subject: rtc: isl12022: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230511175609.282191-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-isl12022.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c
index e68a79b5e00e..eef66453841f 100644
--- a/drivers/rtc/rtc-isl12022.c
+++ b/drivers/rtc/rtc-isl12022.c
@@ -89,7 +89,7 @@ static int isl12022_hwmon_read(struct device *dev,
 	return -EOPNOTSUPP;
 }
 
-static const struct hwmon_channel_info *isl12022_hwmon_info[] = {
+static const struct hwmon_channel_info * const isl12022_hwmon_info[] = {
 	HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT),
 	NULL
 };
-- 
cgit v1.2.3


From b19118965778da3ba9fbeeca39bdf24738d229b4 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Date: Thu, 11 May 2023 19:56:09 +0200
Subject: rtc: rv3032: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230511175609.282191-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-rv3032.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c
index 1ff4f2e6fa77..7b36e7f125f7 100644
--- a/drivers/rtc/rtc-rv3032.c
+++ b/drivers/rtc/rtc-rv3032.c
@@ -842,7 +842,7 @@ static int rv3032_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
 	return err;
 }
 
-static const struct hwmon_channel_info *rv3032_hwmon_info[] = {
+static const struct hwmon_channel_info * const rv3032_hwmon_info[] = {
 	HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ),
 	HWMON_CHANNEL_INFO(temp, HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST),
 	NULL
-- 
cgit v1.2.3


From 31b0cecb4042d2676fd48f09379a19bc8b16eadd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Fri, 5 May 2023 14:11:36 +0200
Subject: rtc: Switch i2c drivers back to use .probe()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230505121136.1185653-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-ab-b5ze-s3.c | 2 +-
 drivers/rtc/rtc-ab-eoz9.c    | 2 +-
 drivers/rtc/rtc-abx80x.c     | 2 +-
 drivers/rtc/rtc-bq32k.c      | 2 +-
 drivers/rtc/rtc-ds1307.c     | 2 +-
 drivers/rtc/rtc-ds1374.c     | 2 +-
 drivers/rtc/rtc-ds1672.c     | 2 +-
 drivers/rtc/rtc-ds3232.c     | 2 +-
 drivers/rtc/rtc-em3027.c     | 2 +-
 drivers/rtc/rtc-fm3130.c     | 2 +-
 drivers/rtc/rtc-hym8563.c    | 2 +-
 drivers/rtc/rtc-isl12022.c   | 2 +-
 drivers/rtc/rtc-isl12026.c   | 2 +-
 drivers/rtc/rtc-isl1208.c    | 2 +-
 drivers/rtc/rtc-m41t80.c     | 2 +-
 drivers/rtc/rtc-max6900.c    | 2 +-
 drivers/rtc/rtc-nct3018y.c   | 2 +-
 drivers/rtc/rtc-pcf2127.c    | 2 +-
 drivers/rtc/rtc-pcf85063.c   | 2 +-
 drivers/rtc/rtc-pcf8523.c    | 2 +-
 drivers/rtc/rtc-pcf85363.c   | 2 +-
 drivers/rtc/rtc-pcf8563.c    | 2 +-
 drivers/rtc/rtc-pcf8583.c    | 2 +-
 drivers/rtc/rtc-rs5c372.c    | 2 +-
 drivers/rtc/rtc-rv3028.c     | 2 +-
 drivers/rtc/rtc-rv3029c2.c   | 2 +-
 drivers/rtc/rtc-rv3032.c     | 2 +-
 drivers/rtc/rtc-rv8803.c     | 2 +-
 drivers/rtc/rtc-rx6110.c     | 2 +-
 drivers/rtc/rtc-rx8010.c     | 2 +-
 drivers/rtc/rtc-rx8025.c     | 2 +-
 drivers/rtc/rtc-rx8581.c     | 2 +-
 drivers/rtc/rtc-s35390a.c    | 2 +-
 drivers/rtc/rtc-sd3078.c     | 2 +-
 drivers/rtc/rtc-x1205.c      | 2 +-
 35 files changed, 35 insertions(+), 35 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-ab-b5ze-s3.c b/drivers/rtc/rtc-ab-b5ze-s3.c
index f2b0971d2c65..100062001831 100644
--- a/drivers/rtc/rtc-ab-b5ze-s3.c
+++ b/drivers/rtc/rtc-ab-b5ze-s3.c
@@ -944,7 +944,7 @@ static struct i2c_driver abb5zes3_driver = {
 		.pm = &abb5zes3_rtc_pm_ops,
 		.of_match_table = of_match_ptr(abb5zes3_dt_match),
 	},
-	.probe_new = abb5zes3_probe,
+	.probe = abb5zes3_probe,
 	.id_table = abb5zes3_id,
 };
 module_i2c_driver(abb5zes3_driver);
diff --git a/drivers/rtc/rtc-ab-eoz9.c b/drivers/rtc/rtc-ab-eoz9.c
index 143650cb7822..04e1b8e93bc1 100644
--- a/drivers/rtc/rtc-ab-eoz9.c
+++ b/drivers/rtc/rtc-ab-eoz9.c
@@ -584,7 +584,7 @@ static struct i2c_driver abeoz9_driver = {
 		.name = "rtc-ab-eoz9",
 		.of_match_table = of_match_ptr(abeoz9_dt_match),
 	},
-	.probe_new = abeoz9_probe,
+	.probe = abeoz9_probe,
 	.id_table = abeoz9_id,
 };
 
diff --git a/drivers/rtc/rtc-abx80x.c b/drivers/rtc/rtc-abx80x.c
index f34a2e59cac7..e08d3181bd2a 100644
--- a/drivers/rtc/rtc-abx80x.c
+++ b/drivers/rtc/rtc-abx80x.c
@@ -992,7 +992,7 @@ static struct i2c_driver abx80x_driver = {
 		.name	= "rtc-abx80x",
 		.of_match_table = of_match_ptr(abx80x_of_match),
 	},
-	.probe_new	= abx80x_probe,
+	.probe		= abx80x_probe,
 	.id_table	= abx80x_id,
 };
 
diff --git a/drivers/rtc/rtc-bq32k.c b/drivers/rtc/rtc-bq32k.c
index 967ddc6bf76d..591e42391747 100644
--- a/drivers/rtc/rtc-bq32k.c
+++ b/drivers/rtc/rtc-bq32k.c
@@ -320,7 +320,7 @@ static struct i2c_driver bq32k_driver = {
 		.name	= "bq32k",
 		.of_match_table = of_match_ptr(bq32k_of_match),
 	},
-	.probe_new	= bq32k_probe,
+	.probe		= bq32k_probe,
 	.remove		= bq32k_remove,
 	.id_table	= bq32k_id,
 };
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index e86ba84df6cb..cb5acecc11aa 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -2011,7 +2011,7 @@ static struct i2c_driver ds1307_driver = {
 		.name	= "rtc-ds1307",
 		.of_match_table = ds1307_of_match,
 	},
-	.probe_new	= ds1307_probe,
+	.probe		= ds1307_probe,
 	.id_table	= ds1307_id,
 };
 
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 7f089f066163..4a5005cb23f5 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -572,7 +572,7 @@ static struct i2c_driver ds1374_driver = {
 		.of_match_table = of_match_ptr(ds1374_of_match),
 		.pm = &ds1374_pm,
 	},
-	.probe_new = ds1374_probe,
+	.probe = ds1374_probe,
 	.remove = ds1374_remove,
 	.id_table = ds1374_id,
 };
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index a3bb2cd9c881..641799f30baa 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -149,7 +149,7 @@ static struct i2c_driver ds1672_driver = {
 		   .name = "rtc-ds1672",
 		   .of_match_table = of_match_ptr(ds1672_of_match),
 	},
-	.probe_new = ds1672_probe,
+	.probe = ds1672_probe,
 	.id_table = ds1672_id,
 };
 
diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c
index ce46016c9fd8..89d7b085f721 100644
--- a/drivers/rtc/rtc-ds3232.c
+++ b/drivers/rtc/rtc-ds3232.c
@@ -603,7 +603,7 @@ static struct i2c_driver ds3232_driver = {
 		.of_match_table = of_match_ptr(ds3232_of_match),
 		.pm	= &ds3232_pm_ops,
 	},
-	.probe_new = ds3232_i2c_probe,
+	.probe = ds3232_i2c_probe,
 	.id_table = ds3232_id,
 };
 
diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c
index 53f9f9391a5f..fc772eae5da5 100644
--- a/drivers/rtc/rtc-em3027.c
+++ b/drivers/rtc/rtc-em3027.c
@@ -147,7 +147,7 @@ static struct i2c_driver em3027_driver = {
 		   .name = "rtc-em3027",
 		   .of_match_table = of_match_ptr(em3027_of_match),
 	},
-	.probe_new = em3027_probe,
+	.probe = em3027_probe,
 	.id_table = em3027_id,
 };
 
diff --git a/drivers/rtc/rtc-fm3130.c b/drivers/rtc/rtc-fm3130.c
index f59bb81f23c0..400ce4ad0c49 100644
--- a/drivers/rtc/rtc-fm3130.c
+++ b/drivers/rtc/rtc-fm3130.c
@@ -517,7 +517,7 @@ static struct i2c_driver fm3130_driver = {
 	.driver = {
 		.name	= "rtc-fm3130",
 	},
-	.probe_new	= fm3130_probe,
+	.probe		= fm3130_probe,
 	.id_table	= fm3130_id,
 };
 
diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
index 7d5a298a9a3b..b018535c842b 100644
--- a/drivers/rtc/rtc-hym8563.c
+++ b/drivers/rtc/rtc-hym8563.c
@@ -576,7 +576,7 @@ static struct i2c_driver hym8563_driver = {
 		.pm	= &hym8563_pm_ops,
 		.of_match_table	= hym8563_dt_idtable,
 	},
-	.probe_new	= hym8563_probe,
+	.probe		= hym8563_probe,
 	.id_table	= hym8563_id,
 };
 
diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c
index eef66453841f..a613257d1574 100644
--- a/drivers/rtc/rtc-isl12022.c
+++ b/drivers/rtc/rtc-isl12022.c
@@ -262,7 +262,7 @@ static struct i2c_driver isl12022_driver = {
 		.name	= "rtc-isl12022",
 		.of_match_table = isl12022_dt_match,
 	},
-	.probe_new	= isl12022_probe,
+	.probe		= isl12022_probe,
 	.id_table	= isl12022_id,
 };
 
diff --git a/drivers/rtc/rtc-isl12026.c b/drivers/rtc/rtc-isl12026.c
index 1bfca39079d4..5abff5d348ac 100644
--- a/drivers/rtc/rtc-isl12026.c
+++ b/drivers/rtc/rtc-isl12026.c
@@ -490,7 +490,7 @@ static struct i2c_driver isl12026_driver = {
 		.name	= "rtc-isl12026",
 		.of_match_table = isl12026_dt_match,
 	},
-	.probe_new	= isl12026_probe_new,
+	.probe		= isl12026_probe_new,
 	.remove		= isl12026_remove,
 };
 
diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 73cc6aaf9b8b..92a7a1d8d5c3 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -908,7 +908,7 @@ static struct i2c_driver isl1208_driver = {
 		.name = "rtc-isl1208",
 		.of_match_table = of_match_ptr(isl1208_of_match),
 	},
-	.probe_new = isl1208_probe,
+	.probe = isl1208_probe,
 	.id_table = isl1208_id,
 };
 
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index c1963f7c424d..3cc5151e0986 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -1013,7 +1013,7 @@ static struct i2c_driver m41t80_driver = {
 		.of_match_table = of_match_ptr(m41t80_of_match),
 		.pm = &m41t80_pm,
 	},
-	.probe_new = m41t80_probe,
+	.probe = m41t80_probe,
 	.remove = m41t80_remove,
 	.id_table = m41t80_id,
 };
diff --git a/drivers/rtc/rtc-max6900.c b/drivers/rtc/rtc-max6900.c
index 0a33851cc51f..31b910e4d91a 100644
--- a/drivers/rtc/rtc-max6900.c
+++ b/drivers/rtc/rtc-max6900.c
@@ -224,7 +224,7 @@ static struct i2c_driver max6900_driver = {
 	.driver = {
 		   .name = "rtc-max6900",
 		   },
-	.probe_new = max6900_probe,
+	.probe = max6900_probe,
 	.id_table = max6900_id,
 };
 
diff --git a/drivers/rtc/rtc-nct3018y.c b/drivers/rtc/rtc-nct3018y.c
index 0a3b14c95d90..a4e3f924837e 100644
--- a/drivers/rtc/rtc-nct3018y.c
+++ b/drivers/rtc/rtc-nct3018y.c
@@ -540,7 +540,7 @@ static struct i2c_driver nct3018y_driver = {
 		.name	= "rtc-nct3018y",
 		.of_match_table = of_match_ptr(nct3018y_of_match),
 	},
-	.probe_new	= nct3018y_probe,
+	.probe		= nct3018y_probe,
 	.id_table	= nct3018y_id,
 };
 
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
index 87f4fc9df68b..ee03b04b74ba 100644
--- a/drivers/rtc/rtc-pcf2127.c
+++ b/drivers/rtc/rtc-pcf2127.c
@@ -923,7 +923,7 @@ static struct i2c_driver pcf2127_i2c_driver = {
 		.name	= "rtc-pcf2127-i2c",
 		.of_match_table = of_match_ptr(pcf2127_of_match),
 	},
-	.probe_new	= pcf2127_i2c_probe,
+	.probe		= pcf2127_i2c_probe,
 	.id_table	= pcf2127_i2c_id,
 };
 
diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c
index 71a456355981..e517abfaee2a 100644
--- a/drivers/rtc/rtc-pcf85063.c
+++ b/drivers/rtc/rtc-pcf85063.c
@@ -681,7 +681,7 @@ static struct i2c_driver pcf85063_driver = {
 		.name	= "rtc-pcf85063",
 		.of_match_table = of_match_ptr(pcf85063_of_match),
 	},
-	.probe_new	= pcf85063_probe,
+	.probe		= pcf85063_probe,
 	.id_table	= pcf85063_ids,
 };
 
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
index e7115ebef707..d1efde3e7a80 100644
--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -488,7 +488,7 @@ static struct i2c_driver pcf8523_driver = {
 		.name = "rtc-pcf8523",
 		.of_match_table = pcf8523_of_match,
 	},
-	.probe_new = pcf8523_probe,
+	.probe = pcf8523_probe,
 	.id_table = pcf8523_id,
 };
 module_i2c_driver(pcf8523_driver);
diff --git a/drivers/rtc/rtc-pcf85363.c b/drivers/rtc/rtc-pcf85363.c
index 8958eadf1c3e..65b8b1338dbb 100644
--- a/drivers/rtc/rtc-pcf85363.c
+++ b/drivers/rtc/rtc-pcf85363.c
@@ -475,7 +475,7 @@ static struct i2c_driver pcf85363_driver = {
 		.name	= "pcf85363",
 		.of_match_table = of_match_ptr(dev_ids),
 	},
-	.probe_new = pcf85363_probe,
+	.probe = pcf85363_probe,
 };
 
 module_i2c_driver(pcf85363_driver);
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index 7e720472213c..ea82b89d8929 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -612,7 +612,7 @@ static struct i2c_driver pcf8563_driver = {
 		.name	= "rtc-pcf8563",
 		.of_match_table = of_match_ptr(pcf8563_of_match),
 	},
-	.probe_new	= pcf8563_probe,
+	.probe		= pcf8563_probe,
 	.id_table	= pcf8563_id,
 };
 
diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c
index 87074d178274..a7e0fc360b6a 100644
--- a/drivers/rtc/rtc-pcf8583.c
+++ b/drivers/rtc/rtc-pcf8583.c
@@ -306,7 +306,7 @@ static struct i2c_driver pcf8583_driver = {
 	.driver = {
 		.name	= "pcf8583",
 	},
-	.probe_new	= pcf8583_probe,
+	.probe		= pcf8583_probe,
 	.id_table	= pcf8583_id,
 };
 
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c
index b4c5d016eca3..a5a6c8772ecd 100644
--- a/drivers/rtc/rtc-rs5c372.c
+++ b/drivers/rtc/rtc-rs5c372.c
@@ -921,7 +921,7 @@ static struct i2c_driver rs5c372_driver = {
 		.name	= "rtc-rs5c372",
 		.of_match_table = of_match_ptr(rs5c372_of_match),
 	},
-	.probe_new	= rs5c372_probe,
+	.probe		= rs5c372_probe,
 	.remove		= rs5c372_remove,
 	.id_table	= rs5c372_id,
 };
diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index ec5d7a614e2d..5595a4684f75 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -1000,7 +1000,7 @@ static struct i2c_driver rv3028_driver = {
 		.acpi_match_table = rv3028_i2c_acpi_match,
 		.of_match_table = of_match_ptr(rv3028_of_match),
 	},
-	.probe_new	= rv3028_probe,
+	.probe		= rv3028_probe,
 };
 module_i2c_driver(rv3028_driver);
 
diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c
index 0852f6709a85..4a81feeb00ff 100644
--- a/drivers/rtc/rtc-rv3029c2.c
+++ b/drivers/rtc/rtc-rv3029c2.c
@@ -824,7 +824,7 @@ static struct i2c_driver rv3029_driver = {
 		.name = "rv3029",
 		.of_match_table = of_match_ptr(rv3029_of_match),
 	},
-	.probe_new	= rv3029_i2c_probe,
+	.probe		= rv3029_i2c_probe,
 	.id_table	= rv3029_id,
 };
 
diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c
index 7b36e7f125f7..6b8eb2039a33 100644
--- a/drivers/rtc/rtc-rv3032.c
+++ b/drivers/rtc/rtc-rv3032.c
@@ -998,7 +998,7 @@ static struct i2c_driver rv3032_driver = {
 		.acpi_match_table = rv3032_i2c_acpi_match,
 		.of_match_table = of_match_ptr(rv3032_of_match),
 	},
-	.probe_new	= rv3032_probe,
+	.probe		= rv3032_probe,
 };
 module_i2c_driver(rv3032_driver);
 
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index 25c3b9e4f515..98679cae13e8 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -739,7 +739,7 @@ static struct i2c_driver rv8803_driver = {
 		.name = "rtc-rv8803",
 		.of_match_table = of_match_ptr(rv8803_of_match),
 	},
-	.probe_new	= rv8803_probe,
+	.probe		= rv8803_probe,
 	.id_table	= rv8803_id,
 };
 module_i2c_driver(rv8803_driver);
diff --git a/drivers/rtc/rtc-rx6110.c b/drivers/rtc/rtc-rx6110.c
index 37608883a796..8702db6096ba 100644
--- a/drivers/rtc/rtc-rx6110.c
+++ b/drivers/rtc/rtc-rx6110.c
@@ -462,7 +462,7 @@ static struct i2c_driver rx6110_i2c_driver = {
 		.name = RX6110_DRIVER_NAME,
 		.acpi_match_table = rx6110_i2c_acpi_match,
 	},
-	.probe_new	= rx6110_i2c_probe,
+	.probe		= rx6110_i2c_probe,
 	.id_table	= rx6110_i2c_id,
 };
 
diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c
index b9c8dad26208..f44e212c07de 100644
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -424,7 +424,7 @@ static struct i2c_driver rx8010_driver = {
 		.name = "rtc-rx8010",
 		.of_match_table = of_match_ptr(rx8010_of_match),
 	},
-	.probe_new	= rx8010_probe,
+	.probe		= rx8010_probe,
 	.id_table	= rx8010_id,
 };
 
diff --git a/drivers/rtc/rtc-rx8025.c b/drivers/rtc/rtc-rx8025.c
index 331c20d4d843..aabe62c283a1 100644
--- a/drivers/rtc/rtc-rx8025.c
+++ b/drivers/rtc/rtc-rx8025.c
@@ -581,7 +581,7 @@ static struct i2c_driver rx8025_driver = {
 	.driver = {
 		.name = "rtc-rx8025",
 	},
-	.probe_new	= rx8025_probe,
+	.probe		= rx8025_probe,
 	.id_table	= rx8025_id,
 };
 
diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c
index 14edb7534c97..82881fd2e14a 100644
--- a/drivers/rtc/rtc-rx8581.c
+++ b/drivers/rtc/rtc-rx8581.c
@@ -325,7 +325,7 @@ static struct i2c_driver rx8581_driver = {
 		.name	= "rtc-rx8581",
 		.of_match_table = of_match_ptr(rx8581_of_match),
 	},
-	.probe_new	= rx8581_probe,
+	.probe		= rx8581_probe,
 	.id_table	= rx8581_id,
 };
 
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index b18daaf72b17..90a3028ac574 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -499,7 +499,7 @@ static struct i2c_driver s35390a_driver = {
 		.name	= "rtc-s35390a",
 		.of_match_table = of_match_ptr(s35390a_of_match),
 	},
-	.probe_new	= s35390a_probe,
+	.probe		= s35390a_probe,
 	.id_table	= s35390a_id,
 };
 
diff --git a/drivers/rtc/rtc-sd3078.c b/drivers/rtc/rtc-sd3078.c
index e2f90d768ca8..7760394ccd2d 100644
--- a/drivers/rtc/rtc-sd3078.c
+++ b/drivers/rtc/rtc-sd3078.c
@@ -217,7 +217,7 @@ static struct i2c_driver sd3078_driver = {
 		.name   = "sd3078",
 		.of_match_table = of_match_ptr(rtc_dt_match),
 	},
-	.probe_new  = sd3078_probe,
+	.probe      = sd3078_probe,
 	.id_table   = sd3078_id,
 };
 
diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c
index f587afa84357..807f953ae0ae 100644
--- a/drivers/rtc/rtc-x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -679,7 +679,7 @@ static struct i2c_driver x1205_driver = {
 		.name	= "rtc-x1205",
 		.of_match_table = x1205_dt_ids,
 	},
-	.probe_new	= x1205_probe,
+	.probe		= x1205_probe,
 	.remove		= x1205_remove,
 	.id_table	= x1205_id,
 };
-- 
cgit v1.2.3


From 8bb12adb214b2d7cdad84f89db2cbab4b2908b61 Mon Sep 17 00:00:00 2001
From: Niklas Schnelle <schnelle@linux.ibm.com>
Date: Mon, 22 May 2023 12:50:35 +0200
Subject: rtc: add HAS_IOPORT dependencies

In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.

Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/20230522105049.1467313-31-schnelle@linux.ibm.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/Kconfig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 753872408615..a38a919b3f15 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -956,6 +956,7 @@ comment "Platform RTC drivers"
 config RTC_DRV_CMOS
 	tristate "PC-style 'CMOS'"
 	depends on X86 || ARM || PPC || MIPS || SPARC64
+	depends on HAS_IOPORT || MACH_DECSTATION
 	default y if X86
 	select RTC_MC146818_LIB
 	help
@@ -976,6 +977,7 @@ config RTC_DRV_CMOS
 config RTC_DRV_ALPHA
 	bool "Alpha PC-style CMOS"
 	depends on ALPHA
+	depends on HAS_IOPORT
 	select RTC_MC146818_LIB
 	default y
 	help
@@ -1193,7 +1195,7 @@ config RTC_DRV_MSM6242
 
 config RTC_DRV_BQ4802
 	tristate "TI BQ4802"
-	depends on HAS_IOMEM
+	depends on HAS_IOMEM && HAS_IOPORT
 	help
 	  If you say Y here you will get support for the TI
 	  BQ4802 RTC chip.
-- 
cgit v1.2.3


From 38e0689b27f8b9a0085815b2446b12f685d028aa Mon Sep 17 00:00:00 2001
From: Alexandre Torgue <alexandre.torgue@foss.st.com>
Date: Wed, 31 May 2023 14:27:31 +0200
Subject: rtc: stm32: remove dedicated wakeup management

There is no more needs to use a dedicated wake up interrupt for RTC as
EXTI block manages by itself now all interrupt lines.

Dedicated wakeup interrupt has been introduced with STM32 MP1 support
commit b72252b6580c ("rtc: stm32: add stm32mp1 rtc support") because GIC &
EXTI interrupts were not yet linked in EXTI driver.

Removing this interrupt won't break compatibility with device trees which
do use two interrupts entries: it could only prevent wakeup from low power
modes on STM32MP1x, but platform power management is not yet available.

Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20230531122732.1515594-1-amelie.delaunay@foss.st.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-stm32.c | 28 +++++-----------------------
 1 file changed, 5 insertions(+), 23 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-stm32.c b/drivers/rtc/rtc-stm32.c
index 229cb2847cc4..3d36e11cff80 100644
--- a/drivers/rtc/rtc-stm32.c
+++ b/drivers/rtc/rtc-stm32.c
@@ -114,7 +114,6 @@ struct stm32_rtc_data {
 	void (*clear_events)(struct stm32_rtc *rtc, unsigned int flags);
 	bool has_pclk;
 	bool need_dbp;
-	bool has_wakeirq;
 };
 
 struct stm32_rtc {
@@ -127,7 +126,6 @@ struct stm32_rtc {
 	struct clk *rtc_ck;
 	const struct stm32_rtc_data *data;
 	int irq_alarm;
-	int wakeirq_alarm;
 };
 
 static void stm32_rtc_wpr_unlock(struct stm32_rtc *rtc)
@@ -547,7 +545,6 @@ static void stm32_rtc_clear_events(struct stm32_rtc *rtc,
 static const struct stm32_rtc_data stm32_rtc_data = {
 	.has_pclk = false,
 	.need_dbp = true,
-	.has_wakeirq = false,
 	.regs = {
 		.tr = 0x00,
 		.dr = 0x04,
@@ -569,7 +566,6 @@ static const struct stm32_rtc_data stm32_rtc_data = {
 static const struct stm32_rtc_data stm32h7_rtc_data = {
 	.has_pclk = true,
 	.need_dbp = true,
-	.has_wakeirq = false,
 	.regs = {
 		.tr = 0x00,
 		.dr = 0x04,
@@ -600,7 +596,6 @@ static void stm32mp1_rtc_clear_events(struct stm32_rtc *rtc,
 static const struct stm32_rtc_data stm32mp1_data = {
 	.has_pclk = true,
 	.need_dbp = false,
-	.has_wakeirq = true,
 	.regs = {
 		.tr = 0x00,
 		.dr = 0x04,
@@ -779,19 +774,12 @@ static int stm32_rtc_probe(struct platform_device *pdev)
 	}
 
 	ret = device_init_wakeup(&pdev->dev, true);
-	if (rtc->data->has_wakeirq) {
-		rtc->wakeirq_alarm = platform_get_irq(pdev, 1);
-		if (rtc->wakeirq_alarm > 0) {
-			ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,
-							    rtc->wakeirq_alarm);
-		} else {
-			ret = rtc->wakeirq_alarm;
-			if (rtc->wakeirq_alarm == -EPROBE_DEFER)
-				goto err;
-		}
-	}
 	if (ret)
-		dev_warn(&pdev->dev, "alarm can't wake up the system: %d", ret);
+		goto err;
+
+	ret = dev_pm_set_wake_irq(&pdev->dev, rtc->irq_alarm);
+	if (ret)
+		goto err;
 
 	platform_set_drvdata(pdev, rtc);
 
@@ -879,9 +867,6 @@ static int stm32_rtc_suspend(struct device *dev)
 	if (rtc->data->has_pclk)
 		clk_disable_unprepare(rtc->pclk);
 
-	if (device_may_wakeup(dev))
-		return enable_irq_wake(rtc->irq_alarm);
-
 	return 0;
 }
 
@@ -903,9 +888,6 @@ static int stm32_rtc_resume(struct device *dev)
 		return ret;
 	}
 
-	if (device_may_wakeup(dev))
-		return disable_irq_wake(rtc->irq_alarm);
-
 	return ret;
 }
 #endif
-- 
cgit v1.2.3


From 06c6e1b01d9261f03629cefd1f3553503291e6cf Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Thu, 8 Jun 2023 21:11:42 +0200
Subject: rtc: st-lpc: Release some resources in st_rtc_probe() in case of
 error

If an error occurs after clk_get(), the corresponding resources should be
released.

Use devm_clk_get() to fix it.

Fixes: b5b2bdfc2893 ("rtc: st: Add new driver for ST's LPC RTC")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/866af6adbc7454a7b4505eb6c28fbdc86ccff39e.1686251455.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-st-lpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c
index 0f8e4231098e..d04d46f9cc65 100644
--- a/drivers/rtc/rtc-st-lpc.c
+++ b/drivers/rtc/rtc-st-lpc.c
@@ -228,7 +228,7 @@ static int st_rtc_probe(struct platform_device *pdev)
 	enable_irq_wake(rtc->irq);
 	disable_irq(rtc->irq);
 
-	rtc->clk = clk_get(&pdev->dev, NULL);
+	rtc->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(rtc->clk)) {
 		dev_err(&pdev->dev, "Unable to request clock\n");
 		return PTR_ERR(rtc->clk);
-- 
cgit v1.2.3


From 0e6f36cca1bd3f5257315b55d9f31519ea4cc059 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Thu, 8 Jun 2023 21:12:00 +0200
Subject: rtc: st-lpc: Simplify clk handling in st_rtc_probe()

Use devm_clk_get_enabled() instead of hand writing it. This simplifies
error handling and removes some lines of code.

Also use dev_err_probe() which filters -EPROBE_DEFER.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/992dd8c31be0bb5b8a9d8b5e8e94807ab0848a66.1686251455.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-st-lpc.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c
index d04d46f9cc65..d492a2d26600 100644
--- a/drivers/rtc/rtc-st-lpc.c
+++ b/drivers/rtc/rtc-st-lpc.c
@@ -228,17 +228,13 @@ static int st_rtc_probe(struct platform_device *pdev)
 	enable_irq_wake(rtc->irq);
 	disable_irq(rtc->irq);
 
-	rtc->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(rtc->clk)) {
-		dev_err(&pdev->dev, "Unable to request clock\n");
-		return PTR_ERR(rtc->clk);
-	}
-
-	clk_prepare_enable(rtc->clk);
+	rtc->clk = devm_clk_get_enabled(&pdev->dev, NULL);
+	if (IS_ERR(rtc->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(rtc->clk),
+				     "Unable to request clock\n");
 
 	rtc->clkrate = clk_get_rate(rtc->clk);
 	if (!rtc->clkrate) {
-		clk_disable_unprepare(rtc->clk);
 		dev_err(&pdev->dev, "Unable to fetch clock rate\n");
 		return -EINVAL;
 	}
@@ -252,10 +248,8 @@ static int st_rtc_probe(struct platform_device *pdev)
 	do_div(rtc->rtc_dev->range_max, rtc->clkrate);
 
 	ret = devm_rtc_register_device(rtc->rtc_dev);
-	if (ret) {
-		clk_disable_unprepare(rtc->clk);
+	if (ret)
 		return ret;
-	}
 
 	return 0;
 }
-- 
cgit v1.2.3


From 380960c40a1d106bba3476c9a010eaf28195115d Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Fri, 23 Jun 2023 15:09:44 +0100
Subject: rtc: isl1208: Drop name variable

Drop unused name variable from struct isl1208_config.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230623140948.384762-7-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-isl1208.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 92a7a1d8d5c3..6b3ff21084c5 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -79,15 +79,14 @@ enum isl1208_id {
 
 /* Chip capabilities table */
 static const struct isl1208_config {
-	const char	name[8];
 	unsigned int	nvmem_length;
 	unsigned	has_tamper:1;
 	unsigned	has_timestamp:1;
 } isl1208_configs[] = {
-	[TYPE_ISL1208] = { "isl1208", 2, false, false },
-	[TYPE_ISL1209] = { "isl1209", 2, true,  false },
-	[TYPE_ISL1218] = { "isl1218", 8, false, false },
-	[TYPE_ISL1219] = { "isl1219", 2, true,  true },
+	[TYPE_ISL1208] = { 2, false, false },
+	[TYPE_ISL1209] = { 2, true,  false },
+	[TYPE_ISL1218] = { 8, false, false },
+	[TYPE_ISL1219] = { 2, true,  true },
 };
 
 static const struct i2c_device_id isl1208_id[] = {
-- 
cgit v1.2.3


From fbc06a53561c64ec6d7f9a1b3bc04597de4cbb2d Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Fri, 23 Jun 2023 15:09:45 +0100
Subject: rtc: isl1208: Make similar I2C and DT-based matching table

The isl1208_id[].driver_data could store a pointer to the config,
like for DT-based matching, making I2C and DT-based matching
more similar.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230623140948.384762-8-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-isl1208.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 6b3ff21084c5..cefff1d863ac 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -90,10 +90,10 @@ static const struct isl1208_config {
 };
 
 static const struct i2c_device_id isl1208_id[] = {
-	{ "isl1208", TYPE_ISL1208 },
-	{ "isl1209", TYPE_ISL1209 },
-	{ "isl1218", TYPE_ISL1218 },
-	{ "isl1219", TYPE_ISL1219 },
+	{ "isl1208", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1208] },
+	{ "isl1209", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1209] },
+	{ "isl1218", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1218] },
+	{ "isl1219", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1219] },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, isl1208_id);
@@ -822,9 +822,9 @@ isl1208_probe(struct i2c_client *client)
 	} else {
 		const struct i2c_device_id *id = i2c_match_id(isl1208_id, client);
 
-		if (id->driver_data >= ISL_LAST_ID)
+		if (!id)
 			return -ENODEV;
-		isl1208->config = &isl1208_configs[id->driver_data];
+		isl1208->config = (struct isl1208_config *)id->driver_data;
 	}
 
 	isl1208->rtc = devm_rtc_allocate_device(&client->dev);
-- 
cgit v1.2.3


From 5923fc75d0dfcebce53894ddada7e2440d756f8b Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Fri, 23 Jun 2023 15:09:46 +0100
Subject: rtc: isl1208: Drop enum isl1208_id and split isl1208_configs[]

Drop enum isl1208_id and split the array isl1208_configs[] as individual
variables, and make lines shorter by referring to e.g. &config_isl1219
instead of &isl1208_configs[TYPE_ISL1219].

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230623140948.384762-9-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-isl1208.c | 56 ++++++++++++++++++++++++++++-------------------
 1 file changed, 33 insertions(+), 23 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index cefff1d863ac..42d2116d244d 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -68,41 +68,51 @@
 
 static struct i2c_driver isl1208_driver;
 
-/* ISL1208 various variants */
-enum isl1208_id {
-	TYPE_ISL1208 = 0,
-	TYPE_ISL1209,
-	TYPE_ISL1218,
-	TYPE_ISL1219,
-	ISL_LAST_ID
-};
-
 /* Chip capabilities table */
-static const struct isl1208_config {
+struct isl1208_config {
 	unsigned int	nvmem_length;
 	unsigned	has_tamper:1;
 	unsigned	has_timestamp:1;
-} isl1208_configs[] = {
-	[TYPE_ISL1208] = { 2, false, false },
-	[TYPE_ISL1209] = { 2, true,  false },
-	[TYPE_ISL1218] = { 8, false, false },
-	[TYPE_ISL1219] = { 2, true,  true },
+};
+
+static const struct isl1208_config config_isl1208 = {
+	.nvmem_length = 2,
+	.has_tamper = false,
+	.has_timestamp = false
+};
+
+static const struct isl1208_config config_isl1209 = {
+	.nvmem_length = 2,
+	.has_tamper = true,
+	.has_timestamp = false
+};
+
+static const struct isl1208_config config_isl1218 = {
+	.nvmem_length = 8,
+	.has_tamper = false,
+	.has_timestamp = false
+};
+
+static const struct isl1208_config config_isl1219 = {
+	.nvmem_length = 2,
+	.has_tamper = true,
+	.has_timestamp = true
 };
 
 static const struct i2c_device_id isl1208_id[] = {
-	{ "isl1208", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1208] },
-	{ "isl1209", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1209] },
-	{ "isl1218", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1218] },
-	{ "isl1219", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1219] },
+	{ "isl1208", .driver_data = (kernel_ulong_t)&config_isl1208 },
+	{ "isl1209", .driver_data = (kernel_ulong_t)&config_isl1209 },
+	{ "isl1218", .driver_data = (kernel_ulong_t)&config_isl1218 },
+	{ "isl1219", .driver_data = (kernel_ulong_t)&config_isl1219 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, isl1208_id);
 
 static const __maybe_unused struct of_device_id isl1208_of_match[] = {
-	{ .compatible = "isil,isl1208", .data = &isl1208_configs[TYPE_ISL1208] },
-	{ .compatible = "isil,isl1209", .data = &isl1208_configs[TYPE_ISL1209] },
-	{ .compatible = "isil,isl1218", .data = &isl1208_configs[TYPE_ISL1218] },
-	{ .compatible = "isil,isl1219", .data = &isl1208_configs[TYPE_ISL1219] },
+	{ .compatible = "isil,isl1208", .data = &config_isl1208 },
+	{ .compatible = "isil,isl1209", .data = &config_isl1209 },
+	{ .compatible = "isil,isl1218", .data = &config_isl1218 },
+	{ .compatible = "isil,isl1219", .data = &config_isl1219 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, isl1208_of_match);
-- 
cgit v1.2.3


From 262f72b4656e182eefaab91ab24a7575dda5524f Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Fri, 23 Jun 2023 15:09:47 +0100
Subject: rtc: isl1208: Add isl1208_set_xtoscb()

As per the HW manual, set the XTOSCB bit as follows:

If using an external clock signal, set the XTOSCB bit as 1 to
disable the crystal oscillator.

If using an external crystal, the XTOSCB bit needs to be set at 0
to enable the crystal oscillator.

Add isl1208_set_xtoscb() to set XTOSCB bit based on the clock-names
property. Fallback is enabling the internal crystal oscillator.

While at it, introduce a variable "sr" for reading the status register
in probe() as it is reused for writing and also remove the unnecessary
blank line.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230623140948.384762-10-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-isl1208.c | 57 ++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 51 insertions(+), 6 deletions(-)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 42d2116d244d..e9ec5675e27c 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/bcd.h>
+#include <linux/clk.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
@@ -175,6 +176,20 @@ isl1208_i2c_validate_client(struct i2c_client *client)
 	return 0;
 }
 
+static int isl1208_set_xtoscb(struct i2c_client *client, int sr, int xtosb_val)
+{
+	/* Do nothing if bit is already set to desired value */
+	if ((sr & ISL1208_REG_SR_XTOSCB) == xtosb_val)
+		return 0;
+
+	if (xtosb_val)
+		sr |= ISL1208_REG_SR_XTOSCB;
+	else
+		sr &= ~ISL1208_REG_SR_XTOSCB;
+
+	return i2c_smbus_write_byte_data(client, ISL1208_REG_SR, sr);
+}
+
 static int
 isl1208_i2c_get_sr(struct i2c_client *client)
 {
@@ -511,7 +526,6 @@ isl1208_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm)
 	return 0;
 }
 
-
 static int
 isl1208_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
@@ -805,12 +819,26 @@ static int isl1208_setup_irq(struct i2c_client *client, int irq)
 	return rc;
 }
 
+static int
+isl1208_clk_present(struct i2c_client *client, const char *name)
+{
+	struct clk *clk;
+
+	clk = devm_clk_get_optional(&client->dev, name);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	return !!clk;
+}
+
 static int
 isl1208_probe(struct i2c_client *client)
 {
-	int rc = 0;
 	struct isl1208_state *isl1208;
 	int evdet_irq = -1;
+	int xtosb_val = 0;
+	int rc = 0;
+	int sr;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
 		return -ENODEV;
@@ -837,6 +865,19 @@ isl1208_probe(struct i2c_client *client)
 		isl1208->config = (struct isl1208_config *)id->driver_data;
 	}
 
+	rc = isl1208_clk_present(client, "xin");
+	if (rc < 0)
+		return rc;
+
+	if (!rc) {
+		rc = isl1208_clk_present(client, "clkin");
+		if (rc < 0)
+			return rc;
+
+		if (rc)
+			xtosb_val = 1;
+	}
+
 	isl1208->rtc = devm_rtc_allocate_device(&client->dev);
 	if (IS_ERR(isl1208->rtc))
 		return PTR_ERR(isl1208->rtc);
@@ -848,13 +889,17 @@ isl1208_probe(struct i2c_client *client)
 	isl1208->nvmem_config.size = isl1208->config->nvmem_length;
 	isl1208->nvmem_config.priv = isl1208;
 
-	rc = isl1208_i2c_get_sr(client);
-	if (rc < 0) {
+	sr = isl1208_i2c_get_sr(client);
+	if (sr < 0) {
 		dev_err(&client->dev, "reading status failed\n");
-		return rc;
+		return sr;
 	}
 
-	if (rc & ISL1208_REG_SR_RTCF)
+	rc = isl1208_set_xtoscb(client, sr, xtosb_val);
+	if (rc)
+		return rc;
+
+	if (sr & ISL1208_REG_SR_RTCF)
 		dev_warn(&client->dev, "rtc power failure detected, "
 			 "please set clock.\n");
 
-- 
cgit v1.2.3


From fdd63f65ac25d0851dade4c7ba94a7a882b8d9c2 Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: Fri, 23 Jun 2023 15:09:48 +0100
Subject: rtc: isl1208: Add support for the built-in RTC on the PMIC RAA215300

The built-in RTC found on PMIC RAA215300 is the same as ISL1208.
However, the external oscillator bit is inverted on PMIC version
0x11. The PMIC driver detects PMIC version and instantiates the
RTC device based on i2c_device_id.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20230623140948.384762-11-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-isl1208.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index e9ec5675e27c..b0712b4e3648 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -74,6 +74,7 @@ struct isl1208_config {
 	unsigned int	nvmem_length;
 	unsigned	has_tamper:1;
 	unsigned	has_timestamp:1;
+	unsigned	has_inverted_osc_bit:1;
 };
 
 static const struct isl1208_config config_isl1208 = {
@@ -100,11 +101,19 @@ static const struct isl1208_config config_isl1219 = {
 	.has_timestamp = true
 };
 
+static const struct isl1208_config config_raa215300_a0 = {
+	.nvmem_length = 2,
+	.has_tamper = false,
+	.has_timestamp = false,
+	.has_inverted_osc_bit = true
+};
+
 static const struct i2c_device_id isl1208_id[] = {
 	{ "isl1208", .driver_data = (kernel_ulong_t)&config_isl1208 },
 	{ "isl1209", .driver_data = (kernel_ulong_t)&config_isl1209 },
 	{ "isl1218", .driver_data = (kernel_ulong_t)&config_isl1218 },
 	{ "isl1219", .driver_data = (kernel_ulong_t)&config_isl1219 },
+	{ "raa215300_a0", .driver_data = (kernel_ulong_t)&config_raa215300_a0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, isl1208_id);
@@ -895,6 +904,9 @@ isl1208_probe(struct i2c_client *client)
 		return sr;
 	}
 
+	if (isl1208->config->has_inverted_osc_bit)
+		xtosb_val = !xtosb_val;
+
 	rc = isl1208_set_xtoscb(client, sr, xtosb_val);
 	if (rc)
 		return rc;
-- 
cgit v1.2.3


From 7e2a60efab8ad901c4743137857c1c5e18e27ed8 Mon Sep 17 00:00:00 2001
From: Johannes Kirchmair <johannes.kirchmair@sigmatek.at>
Date: Mon, 27 Mar 2023 10:55:50 +0200
Subject: rtc: rv3028: make rv3028 probeable from userspace

With this commit, it will be possible to bind a rv3028 device from
userspace

This is done by:
echo rtc-rv3028 0x52 > /sys/bus/i2c/devices/i2c-XX/new_device

Signed-off-by: Johannes Kirchmair <johannes.kirchmair@sigmatek.at>
Link: https://lore.kernel.org/r/20230327085550.1721861-1-johannes.kirchmair@sigmatek.at
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/rtc-rv3028.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index 5595a4684f75..076e56f4e01a 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -994,12 +994,19 @@ static const __maybe_unused struct of_device_id rv3028_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, rv3028_of_match);
 
+static const struct i2c_device_id rv3028_id_table[] = {
+	{ .name = "rv3028", },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, rv3028_id_table);
+
 static struct i2c_driver rv3028_driver = {
 	.driver = {
 		.name = "rtc-rv3028",
 		.acpi_match_table = rv3028_i2c_acpi_match,
 		.of_match_table = of_match_ptr(rv3028_of_match),
 	},
+	.id_table	= rv3028_id_table,
 	.probe		= rv3028_probe,
 };
 module_i2c_driver(rv3028_driver);
-- 
cgit v1.2.3


From 9fb23090658adbd7f8f44bf5c38aa3fc4b1699bd Mon Sep 17 00:00:00 2001
From: Binbin Zhou <zhoubinbin@loongson.cn>
Date: Fri, 2 Jun 2023 17:50:21 +0800
Subject: rtc: Remove the Loongson-1 RTC driver

Remove the ls1x-rtc driver as it is obsolete. We will continue to
support the ls1x RTC in the upcoming Loongson unified RTC driver
rtc-loongson.

Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: zhao zhang <zhzhl555@gmail.com>
Cc: Yang Ling <gnaygnil@gmail.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Acked-by: Keguang Zhang <keguang.zhang@gmail.com>
Link: https://lore.kernel.org/r/c38c666015a162d7031b20a48209ce577bab62cd.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/Kconfig    |  10 ---
 drivers/rtc/Makefile   |   1 -
 drivers/rtc/rtc-ls1x.c | 192 -------------------------------------------------
 3 files changed, 203 deletions(-)
 delete mode 100644 drivers/rtc/rtc-ls1x.c

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index a38a919b3f15..0e904dd0d9fa 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1728,16 +1728,6 @@ config RTC_DRV_TEGRA
 	  This drive can also be built as a module. If so, the module
 	  will be called rtc-tegra.
 
-config RTC_DRV_LOONGSON1
-	tristate "loongson1 RTC support"
-	depends on MACH_LOONGSON32
-	help
-	  This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
-	  counter) to be used as a RTC.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called rtc-ls1x.
-
 config RTC_DRV_MXC
 	tristate "Freescale MXC Real Time Clock"
 	depends on ARCH_MXC || COMPILE_TEST
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index ea445d1ebb17..c50afd8fb9f4 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -78,7 +78,6 @@ obj-$(CONFIG_RTC_DRV_ISL12022)	+= rtc-isl12022.o
 obj-$(CONFIG_RTC_DRV_ISL12026)	+= rtc-isl12026.o
 obj-$(CONFIG_RTC_DRV_ISL1208)	+= rtc-isl1208.o
 obj-$(CONFIG_RTC_DRV_JZ4740)	+= rtc-jz4740.o
-obj-$(CONFIG_RTC_DRV_LOONGSON1)	+= rtc-ls1x.o
 obj-$(CONFIG_RTC_DRV_LP8788)	+= rtc-lp8788.o
 obj-$(CONFIG_RTC_DRV_LPC24XX)	+= rtc-lpc24xx.o
 obj-$(CONFIG_RTC_DRV_LPC32XX)	+= rtc-lpc32xx.o
diff --git a/drivers/rtc/rtc-ls1x.c b/drivers/rtc/rtc-ls1x.c
deleted file mode 100644
index 5af26dc5c2a3..000000000000
--- a/drivers/rtc/rtc-ls1x.c
+++ /dev/null
@@ -1,192 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011 Zhao Zhang <zhzhl555@gmail.com>
- *
- * Derived from driver/rtc/rtc-au1xxx.c
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/rtc.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <linux/io.h>
-#include <loongson1.h>
-
-#define LS1X_RTC_REG_OFFSET	(LS1X_RTC_BASE + 0x20)
-#define LS1X_RTC_REGS(x) \
-		((void __iomem *)KSEG1ADDR(LS1X_RTC_REG_OFFSET + (x)))
-
-/*RTC programmable counters 0 and 1*/
-#define SYS_COUNTER_CNTRL		(LS1X_RTC_REGS(0x20))
-#define SYS_CNTRL_ERS			(1 << 23)
-#define SYS_CNTRL_RTS			(1 << 20)
-#define SYS_CNTRL_RM2			(1 << 19)
-#define SYS_CNTRL_RM1			(1 << 18)
-#define SYS_CNTRL_RM0			(1 << 17)
-#define SYS_CNTRL_RS			(1 << 16)
-#define SYS_CNTRL_BP			(1 << 14)
-#define SYS_CNTRL_REN			(1 << 13)
-#define SYS_CNTRL_BRT			(1 << 12)
-#define SYS_CNTRL_TEN			(1 << 11)
-#define SYS_CNTRL_BTT			(1 << 10)
-#define SYS_CNTRL_E0			(1 << 8)
-#define SYS_CNTRL_ETS			(1 << 7)
-#define SYS_CNTRL_32S			(1 << 5)
-#define SYS_CNTRL_TTS			(1 << 4)
-#define SYS_CNTRL_TM2			(1 << 3)
-#define SYS_CNTRL_TM1			(1 << 2)
-#define SYS_CNTRL_TM0			(1 << 1)
-#define SYS_CNTRL_TS			(1 << 0)
-
-/* Programmable Counter 0 Registers */
-#define SYS_TOYTRIM		(LS1X_RTC_REGS(0))
-#define SYS_TOYWRITE0		(LS1X_RTC_REGS(4))
-#define SYS_TOYWRITE1		(LS1X_RTC_REGS(8))
-#define SYS_TOYREAD0		(LS1X_RTC_REGS(0xC))
-#define SYS_TOYREAD1		(LS1X_RTC_REGS(0x10))
-#define SYS_TOYMATCH0		(LS1X_RTC_REGS(0x14))
-#define SYS_TOYMATCH1		(LS1X_RTC_REGS(0x18))
-#define SYS_TOYMATCH2		(LS1X_RTC_REGS(0x1C))
-
-/* Programmable Counter 1 Registers */
-#define SYS_RTCTRIM		(LS1X_RTC_REGS(0x40))
-#define SYS_RTCWRITE0		(LS1X_RTC_REGS(0x44))
-#define SYS_RTCREAD0		(LS1X_RTC_REGS(0x48))
-#define SYS_RTCMATCH0		(LS1X_RTC_REGS(0x4C))
-#define SYS_RTCMATCH1		(LS1X_RTC_REGS(0x50))
-#define SYS_RTCMATCH2		(LS1X_RTC_REGS(0x54))
-
-#define LS1X_SEC_OFFSET		(4)
-#define LS1X_MIN_OFFSET		(10)
-#define LS1X_HOUR_OFFSET	(16)
-#define LS1X_DAY_OFFSET		(21)
-#define LS1X_MONTH_OFFSET	(26)
-
-
-#define LS1X_SEC_MASK		(0x3f)
-#define LS1X_MIN_MASK		(0x3f)
-#define LS1X_HOUR_MASK		(0x1f)
-#define LS1X_DAY_MASK		(0x1f)
-#define LS1X_MONTH_MASK		(0x3f)
-#define LS1X_YEAR_MASK		(0xffffffff)
-
-#define ls1x_get_sec(t)		(((t) >> LS1X_SEC_OFFSET) & LS1X_SEC_MASK)
-#define ls1x_get_min(t)		(((t) >> LS1X_MIN_OFFSET) & LS1X_MIN_MASK)
-#define ls1x_get_hour(t)	(((t) >> LS1X_HOUR_OFFSET) & LS1X_HOUR_MASK)
-#define ls1x_get_day(t)		(((t) >> LS1X_DAY_OFFSET) & LS1X_DAY_MASK)
-#define ls1x_get_month(t)	(((t) >> LS1X_MONTH_OFFSET) & LS1X_MONTH_MASK)
-
-#define RTC_CNTR_OK (SYS_CNTRL_E0 | SYS_CNTRL_32S)
-
-static int ls1x_rtc_read_time(struct device *dev, struct rtc_time *rtm)
-{
-	unsigned long v;
-	time64_t t;
-
-	v = readl(SYS_TOYREAD0);
-	t = readl(SYS_TOYREAD1);
-
-	memset(rtm, 0, sizeof(struct rtc_time));
-	t  = mktime64((t & LS1X_YEAR_MASK), ls1x_get_month(v),
-			ls1x_get_day(v), ls1x_get_hour(v),
-			ls1x_get_min(v), ls1x_get_sec(v));
-	rtc_time64_to_tm(t, rtm);
-
-	return 0;
-}
-
-static int ls1x_rtc_set_time(struct device *dev, struct  rtc_time *rtm)
-{
-	unsigned long v, t, c;
-	int ret = -ETIMEDOUT;
-
-	v = ((rtm->tm_mon + 1)  << LS1X_MONTH_OFFSET)
-		| (rtm->tm_mday << LS1X_DAY_OFFSET)
-		| (rtm->tm_hour << LS1X_HOUR_OFFSET)
-		| (rtm->tm_min  << LS1X_MIN_OFFSET)
-		| (rtm->tm_sec  << LS1X_SEC_OFFSET);
-
-	writel(v, SYS_TOYWRITE0);
-	c = 0x10000;
-	/* add timeout check counter, for more safe */
-	while ((readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TS) && --c)
-		usleep_range(1000, 3000);
-
-	if (!c) {
-		dev_err(dev, "set time timeout!\n");
-		goto err;
-	}
-
-	t = rtm->tm_year + 1900;
-	writel(t, SYS_TOYWRITE1);
-	c = 0x10000;
-	while ((readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TS) && --c)
-		usleep_range(1000, 3000);
-
-	if (!c) {
-		dev_err(dev, "set time timeout!\n");
-		goto err;
-	}
-	return 0;
-err:
-	return ret;
-}
-
-static const struct rtc_class_ops  ls1x_rtc_ops = {
-	.read_time	= ls1x_rtc_read_time,
-	.set_time	= ls1x_rtc_set_time,
-};
-
-static int ls1x_rtc_probe(struct platform_device *pdev)
-{
-	struct rtc_device *rtcdev;
-	unsigned long v;
-
-	v = readl(SYS_COUNTER_CNTRL);
-	if (!(v & RTC_CNTR_OK)) {
-		dev_err(&pdev->dev, "rtc counters not working\n");
-		return -ENODEV;
-	}
-
-	/* set to 1 HZ if needed */
-	if (readl(SYS_TOYTRIM) != 32767) {
-		v = 0x100000;
-		while ((readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TTS) && --v)
-			usleep_range(1000, 3000);
-
-		if (!v) {
-			dev_err(&pdev->dev, "time out\n");
-			return -ETIMEDOUT;
-		}
-		writel(32767, SYS_TOYTRIM);
-	}
-	/* this loop coundn't be endless */
-	while (readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_TTS)
-		usleep_range(1000, 3000);
-
-	rtcdev = devm_rtc_allocate_device(&pdev->dev);
-	if (IS_ERR(rtcdev))
-		return PTR_ERR(rtcdev);
-
-	platform_set_drvdata(pdev, rtcdev);
-	rtcdev->ops = &ls1x_rtc_ops;
-	rtcdev->range_min = RTC_TIMESTAMP_BEGIN_1900;
-	rtcdev->range_max = RTC_TIMESTAMP_END_2099;
-
-	return devm_rtc_register_device(rtcdev);
-}
-
-static struct platform_driver  ls1x_rtc_driver = {
-	.driver		= {
-		.name	= "ls1x-rtc",
-	},
-	.probe		= ls1x_rtc_probe,
-};
-
-module_platform_driver(ls1x_rtc_driver);
-
-MODULE_AUTHOR("zhao zhang <zhzhl555@gmail.com>");
-MODULE_LICENSE("GPL");
-- 
cgit v1.2.3


From 1b733a9ebc3d8011ca66ec6ff17f55a440358794 Mon Sep 17 00:00:00 2001
From: Binbin Zhou <zhoubinbin@loongson.cn>
Date: Fri, 2 Jun 2023 17:50:48 +0800
Subject: rtc: Add rtc driver for the Loongson family chips

The Loongson family chips use an on-chip counter 0 (Time Of Year
counter) as the RTC. We will refer to them as rtc-loongson.

Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: Yang Ling <gnaygnil@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> # LS7A
Link: https://lore.kernel.org/r/0c5171156390f614d72f36ceb04a20f432ca639e.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
 drivers/rtc/Kconfig        |  13 ++
 drivers/rtc/Makefile       |   1 +
 drivers/rtc/rtc-loongson.c | 397 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 411 insertions(+)
 create mode 100644 drivers/rtc/rtc-loongson.c

(limited to 'drivers/rtc')

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 0e904dd0d9fa..491376585627 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1687,6 +1687,19 @@ config RTC_DRV_JZ4740
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-jz4740.
 
+config RTC_DRV_LOONGSON
+	tristate "Loongson On-chip RTC"
+	depends on MACH_LOONGSON32 || MACH_LOONGSON64 || COMPILE_TEST
+	select REGMAP_MMIO
+	help
+	  This is a driver for the Loongson on-chip Counter0 (Time-Of-Year
+	  counter) to be used as a RTC.
+	  It can be found on Loongson-1 series cpu, Loongson-2K series cpu
+	  and Loongson LS7A bridge chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-loongson.
+
 config RTC_DRV_LPC24XX
 	tristate "NXP RTC for LPC178x/18xx/408x/43xx"
 	depends on ARCH_LPC18XX || COMPILE_TEST
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index c50afd8fb9f4..fd209883ee2e 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_RTC_DRV_ISL12022)	+= rtc-isl12022.o
 obj-$(CONFIG_RTC_DRV_ISL12026)	+= rtc-isl12026.o
 obj-$(CONFIG_RTC_DRV_ISL1208)	+= rtc-isl1208.o
 obj-$(CONFIG_RTC_DRV_JZ4740)	+= rtc-jz4740.o
+obj-$(CONFIG_RTC_DRV_LOONGSON)	+= rtc-loongson.o
 obj-$(CONFIG_RTC_DRV_LP8788)	+= rtc-lp8788.o
 obj-$(CONFIG_RTC_DRV_LPC24XX)	+= rtc-lpc24xx.o
 obj-$(CONFIG_RTC_DRV_LPC32XX)	+= rtc-lpc32xx.o
diff --git a/drivers/rtc/rtc-loongson.c b/drivers/rtc/rtc-loongson.c
new file mode 100644
index 000000000000..e8ffc1ab90b0
--- /dev/null
+++ b/drivers/rtc/rtc-loongson.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Loongson RTC driver
+ *
+ * Maintained out-of-tree by Huacai Chen <chenhuacai@kernel.org>.
+ * Rewritten for mainline by WANG Xuerui <git@xen0n.name>.
+ *                           Binbin Zhou <zhoubinbin@loongson.cn>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/rtc.h>
+#include <linux/acpi.h>
+
+/* Time Of Year(TOY) counters registers */
+#define TOY_TRIM_REG		0x20 /* Must be initialized to 0 */
+#define TOY_WRITE0_REG		0x24 /* TOY low 32-bits value (write-only) */
+#define TOY_WRITE1_REG		0x28 /* TOY high 32-bits value (write-only) */
+#define TOY_READ0_REG		0x2c /* TOY low 32-bits value (read-only) */
+#define TOY_READ1_REG		0x30 /* TOY high 32-bits value (read-only) */
+#define TOY_MATCH0_REG		0x34 /* TOY timing interrupt 0 */
+#define TOY_MATCH1_REG		0x38 /* TOY timing interrupt 1 */
+#define TOY_MATCH2_REG		0x3c /* TOY timing interrupt 2 */
+
+/* RTC counters registers */
+#define RTC_CTRL_REG		0x40 /* TOY and RTC control register */
+#define RTC_TRIM_REG		0x60 /* Must be initialized to 0 */
+#define RTC_WRITE0_REG		0x64 /* RTC counters value (write-only) */
+#define RTC_READ0_REG		0x68 /* RTC counters value (read-only) */
+#define RTC_MATCH0_REG		0x6c /* RTC timing interrupt 0 */
+#define RTC_MATCH1_REG		0x70 /* RTC timing interrupt 1 */
+#define RTC_MATCH2_REG		0x74 /* RTC timing interrupt 2 */
+
+/* bitmask of TOY_WRITE0_REG */
+#define TOY_MON			GENMASK(31, 26)
+#define TOY_DAY			GENMASK(25, 21)
+#define TOY_HOUR		GENMASK(20, 16)
+#define TOY_MIN			GENMASK(15, 10)
+#define TOY_SEC			GENMASK(9, 4)
+#define TOY_MSEC		GENMASK(3, 0)
+
+/* bitmask of TOY_MATCH0/1/2_REG */
+#define TOY_MATCH_YEAR		GENMASK(31, 26)
+#define TOY_MATCH_MON		GENMASK(25, 22)
+#define TOY_MATCH_DAY		GENMASK(21, 17)
+#define TOY_MATCH_HOUR		GENMASK(16, 12)
+#define TOY_MATCH_MIN		GENMASK(11, 6)
+#define TOY_MATCH_SEC		GENMASK(5, 0)
+
+/* bitmask of RTC_CTRL_REG */
+#define RTC_ENABLE		BIT(13) /* 1: RTC counters enable */
+#define TOY_ENABLE		BIT(11) /* 1: TOY counters enable */
+#define OSC_ENABLE		BIT(8) /* 1: 32.768k crystal enable */
+#define TOY_ENABLE_MASK		(TOY_ENABLE | OSC_ENABLE)
+
+/* PM domain registers */
+#define PM1_STS_REG		0x0c	/* Power management 1 status register */
+#define RTC_STS			BIT(10)	/* RTC status */
+#define PM1_EN_REG		0x10	/* Power management 1 enable register */
+#define RTC_EN			BIT(10)	/* RTC event enable */
+
+/*
+ * According to the LS1C manual, RTC_CTRL and alarm-related registers are not defined.
+ * Accessing the relevant registers will cause the system to hang.
+ */
+#define LS1C_RTC_CTRL_WORKAROUND	BIT(0)
+
+struct loongson_rtc_config {
+	u32 pm_offset;	/* Offset of PM domain, for RTC alarm wakeup */
+	u32 flags;	/* Workaround bits */
+};
+
+struct loongson_rtc_priv {
+	spinlock_t lock;	/* protects PM registers access */
+	u32 fix_year;		/* RTC alarm year compensation value */
+	struct rtc_device *rtcdev;
+	struct regmap *regmap;
+	void __iomem *pm_base;	/* PM domain base, for RTC alarm wakeup */
+	const struct loongson_rtc_config *config;
+};
+
+static const struct loongson_rtc_config ls1b_rtc_config = {
+	.pm_offset = 0,
+	.flags = 0,
+};
+
+static const struct loongson_rtc_config ls1c_rtc_config = {
+	.pm_offset = 0,
+	.flags = LS1C_RTC_CTRL_WORKAROUND,
+};
+
+static const struct loongson_rtc_config generic_rtc_config = {
+	.pm_offset = 0x100,
+	.flags = 0,
+};
+
+static const struct loongson_rtc_config ls2k1000_rtc_config = {
+	.pm_offset = 0x800,
+	.flags = 0,
+};
+
+static const struct regmap_config loongson_rtc_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+};
+
+/* RTC alarm irq handler */
+static irqreturn_t loongson_rtc_isr(int irq, void *id)
+{
+	struct loongson_rtc_priv *priv = (struct loongson_rtc_priv *)id;
+
+	rtc_update_irq(priv->rtcdev, 1, RTC_AF | RTC_IRQF);
+	return IRQ_HANDLED;
+}
+
+/* For ACPI fixed event handler */
+static u32 loongson_rtc_handler(void *id)
+{
+	struct loongson_rtc_priv *priv = (struct loongson_rtc_priv *)id;
+
+	spin_lock(&priv->lock);
+	/* Disable RTC alarm wakeup and interrupt */
+	writel(readl(priv->pm_base + PM1_EN_REG) & ~RTC_EN,
+	       priv->pm_base + PM1_EN_REG);
+
+	/* Clear RTC interrupt status */
+	writel(RTC_STS, priv->pm_base + PM1_STS_REG);
+	spin_unlock(&priv->lock);
+
+	/*
+	 * The TOY_MATCH0_REG should be cleared 0 here,
+	 * otherwise the interrupt cannot be cleared.
+	 */
+	return regmap_write(priv->regmap, TOY_MATCH0_REG, 0);
+}
+
+static int loongson_rtc_set_enabled(struct device *dev)
+{
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	if (priv->config->flags & LS1C_RTC_CTRL_WORKAROUND)
+		return 0;
+
+	/* Enable RTC TOY counters and crystal */
+	return regmap_update_bits(priv->regmap, RTC_CTRL_REG, TOY_ENABLE_MASK,
+				  TOY_ENABLE_MASK);
+}
+
+static bool loongson_rtc_get_enabled(struct device *dev)
+{
+	int ret;
+	u32 ctrl_data;
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	if (priv->config->flags & LS1C_RTC_CTRL_WORKAROUND)
+		return true;
+
+	ret = regmap_read(priv->regmap, RTC_CTRL_REG, &ctrl_data);
+	if (ret < 0)
+		return false;
+
+	return ctrl_data & TOY_ENABLE_MASK;
+}
+
+static int loongson_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	int ret;
+	u32 rtc_data[2];
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	if (!loongson_rtc_get_enabled(dev))
+		return -EINVAL;
+
+	ret = regmap_bulk_read(priv->regmap, TOY_READ0_REG, rtc_data,
+			       ARRAY_SIZE(rtc_data));
+	if (ret < 0)
+		return ret;
+
+	tm->tm_sec = FIELD_GET(TOY_SEC, rtc_data[0]);
+	tm->tm_min = FIELD_GET(TOY_MIN, rtc_data[0]);
+	tm->tm_hour = FIELD_GET(TOY_HOUR, rtc_data[0]);
+	tm->tm_mday = FIELD_GET(TOY_DAY, rtc_data[0]);
+	tm->tm_mon = FIELD_GET(TOY_MON, rtc_data[0]) - 1;
+	tm->tm_year = rtc_data[1];
+
+	/* Prepare for RTC alarm year compensation value. */
+	priv->fix_year = tm->tm_year / 64 * 64;
+	return 0;
+}
+
+static int loongson_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	int ret;
+	u32 rtc_data[2];
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	rtc_data[0] = FIELD_PREP(TOY_SEC, tm->tm_sec)
+		    | FIELD_PREP(TOY_MIN, tm->tm_min)
+		    | FIELD_PREP(TOY_HOUR, tm->tm_hour)
+		    | FIELD_PREP(TOY_DAY, tm->tm_mday)
+		    | FIELD_PREP(TOY_MON, tm->tm_mon + 1);
+	rtc_data[1] = tm->tm_year;
+
+	ret = regmap_bulk_write(priv->regmap, TOY_WRITE0_REG, rtc_data,
+				ARRAY_SIZE(rtc_data));
+	if (ret < 0)
+		return ret;
+
+	return loongson_rtc_set_enabled(dev);
+}
+
+static int loongson_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	int ret;
+	u32 alarm_data;
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	ret = regmap_read(priv->regmap, TOY_MATCH0_REG, &alarm_data);
+	if (ret < 0)
+		return ret;
+
+	alrm->time.tm_sec = FIELD_GET(TOY_MATCH_SEC, alarm_data);
+	alrm->time.tm_min = FIELD_GET(TOY_MATCH_MIN, alarm_data);
+	alrm->time.tm_hour = FIELD_GET(TOY_MATCH_HOUR, alarm_data);
+	alrm->time.tm_mday = FIELD_GET(TOY_MATCH_DAY, alarm_data);
+	alrm->time.tm_mon = FIELD_GET(TOY_MATCH_MON, alarm_data) - 1;
+	/*
+	 * This is a hardware bug: the year field of SYS_TOYMATCH is only 6 bits,
+	 * making it impossible to save year values larger than 64.
+	 *
+	 * SYS_TOYMATCH is used to match the alarm time value and determine if
+	 * an alarm is triggered, so we must keep the lower 6 bits of the year
+	 * value constant during the value conversion.
+	 *
+	 * In summary, we need to manually add 64(or a multiple of 64) to the
+	 * year value to avoid the invalid alarm prompt at startup.
+	 */
+	alrm->time.tm_year = FIELD_GET(TOY_MATCH_YEAR, alarm_data) + priv->fix_year;
+
+	alrm->enabled = !!(readl(priv->pm_base + PM1_EN_REG) & RTC_EN);
+	return 0;
+}
+
+static int loongson_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+	u32 val;
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	spin_lock(&priv->lock);
+	val = readl(priv->pm_base + PM1_EN_REG);
+	/* Enable RTC alarm wakeup */
+	writel(enabled ? val | RTC_EN : val & ~RTC_EN,
+	       priv->pm_base + PM1_EN_REG);
+	spin_unlock(&priv->lock);
+
+	return 0;
+}
+
+static int loongson_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	int ret;
+	u32 alarm_data;
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	alarm_data = FIELD_PREP(TOY_MATCH_SEC, alrm->time.tm_sec)
+		   | FIELD_PREP(TOY_MATCH_MIN, alrm->time.tm_min)
+		   | FIELD_PREP(TOY_MATCH_HOUR, alrm->time.tm_hour)
+		   | FIELD_PREP(TOY_MATCH_DAY, alrm->time.tm_mday)
+		   | FIELD_PREP(TOY_MATCH_MON, alrm->time.tm_mon + 1)
+		   | FIELD_PREP(TOY_MATCH_YEAR, alrm->time.tm_year - priv->fix_year);
+
+	ret = regmap_write(priv->regmap, TOY_MATCH0_REG, alarm_data);
+	if (ret < 0)
+		return ret;
+
+	return loongson_rtc_alarm_irq_enable(dev, alrm->enabled);
+}
+
+static const struct rtc_class_ops loongson_rtc_ops = {
+	.read_time = loongson_rtc_read_time,
+	.set_time = loongson_rtc_set_time,
+	.read_alarm = loongson_rtc_read_alarm,
+	.set_alarm = loongson_rtc_set_alarm,
+	.alarm_irq_enable = loongson_rtc_alarm_irq_enable,
+};
+
+static int loongson_rtc_probe(struct platform_device *pdev)
+{
+	int ret, alarm_irq;
+	void __iomem *regs;
+	struct loongson_rtc_priv *priv;
+	struct device *dev = &pdev->dev;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(regs))
+		return dev_err_probe(dev, PTR_ERR(regs),
+				     "devm_platform_ioremap_resource failed\n");
+
+	priv->regmap = devm_regmap_init_mmio(dev, regs,
+					     &loongson_rtc_regmap_config);
+	if (IS_ERR(priv->regmap))
+		return dev_err_probe(dev, PTR_ERR(priv->regmap),
+				     "devm_regmap_init_mmio failed\n");
+
+	priv->config = device_get_match_data(dev);
+	spin_lock_init(&priv->lock);
+	platform_set_drvdata(pdev, priv);
+
+	priv->rtcdev = devm_rtc_allocate_device(dev);
+	if (IS_ERR(priv->rtcdev))
+		return dev_err_probe(dev, PTR_ERR(priv->rtcdev),
+				     "devm_rtc_allocate_device failed\n");
+
+	/* Get RTC alarm irq */
+	alarm_irq = platform_get_irq(pdev, 0);
+	if (alarm_irq > 0) {
+		ret = devm_request_irq(dev, alarm_irq, loongson_rtc_isr,
+				       0, "loongson-alarm", priv);
+		if (ret < 0)
+			return dev_err_probe(dev, ret, "Unable to request irq %d\n",
+					     alarm_irq);
+
+		priv->pm_base = regs - priv->config->pm_offset;
+		device_init_wakeup(dev, 1);
+
+		if (has_acpi_companion(dev))
+			acpi_install_fixed_event_handler(ACPI_EVENT_RTC,
+							 loongson_rtc_handler, priv);
+	} else {
+		/* Loongson-1C RTC does not support alarm */
+		clear_bit(RTC_FEATURE_ALARM, priv->rtcdev->features);
+	}
+
+	/* Loongson RTC does not support UIE */
+	clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, priv->rtcdev->features);
+	priv->rtcdev->ops = &loongson_rtc_ops;
+	priv->rtcdev->range_min = RTC_TIMESTAMP_BEGIN_2000;
+	priv->rtcdev->range_max = RTC_TIMESTAMP_END_2099;
+
+	return devm_rtc_register_device(priv->rtcdev);
+}
+
+static void loongson_rtc_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct loongson_rtc_priv *priv = dev_get_drvdata(dev);
+
+	if (!test_bit(RTC_FEATURE_ALARM, priv->rtcdev->features))
+		return;
+
+	if (has_acpi_companion(dev))
+		acpi_remove_fixed_event_handler(ACPI_EVENT_RTC,
+						loongson_rtc_handler);
+
+	device_init_wakeup(dev, 0);
+	loongson_rtc_alarm_irq_enable(dev, 0);
+}
+
+static const struct of_device_id loongson_rtc_of_match[] = {
+	{ .compatible = "loongson,ls1b-rtc", .data = &ls1b_rtc_config },
+	{ .compatible = "loongson,ls1c-rtc", .data = &ls1c_rtc_config },
+	{ .compatible = "loongson,ls7a-rtc", .data = &generic_rtc_config },
+	{ .compatible = "loongson,ls2k1000-rtc", .data = &ls2k1000_rtc_config },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, loongson_rtc_of_match);
+
+static const struct acpi_device_id loongson_rtc_acpi_match[] = {
+	{ "LOON0001", .driver_data = (kernel_ulong_t)&generic_rtc_config },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, loongson_rtc_acpi_match);
+
+static struct platform_driver loongson_rtc_driver = {
+	.probe		= loongson_rtc_probe,
+	.remove_new	= loongson_rtc_remove,
+	.driver		= {
+		.name	= "loongson-rtc",
+		.of_match_table = loongson_rtc_of_match,
+		.acpi_match_table = loongson_rtc_acpi_match,
+	},
+};
+module_platform_driver(loongson_rtc_driver);
+
+MODULE_DESCRIPTION("Loongson RTC driver");
+MODULE_AUTHOR("Binbin Zhou <zhoubinbin@loongson.cn>");
+MODULE_AUTHOR("WANG Xuerui <git@xen0n.name>");
+MODULE_AUTHOR("Huacai Chen <chenhuacai@kernel.org>");
+MODULE_LICENSE("GPL");
-- 
cgit v1.2.3