Merge tag 'rtc-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "There are three new drivers this cycle. Also the cmos driver is
  getting fixes for longstanding wakeup issues on AMD.

  New drivers:
   - Analog Devices MAX31335
   - Nuvoton ma35d1
   - Texas Instrument TPS6594 PMIC RTC

  Drivers:
   - cmos: use ACPI alarm instead of HPET on recent AMD platforms
   - nuvoton: add NCT3015Y-R and NCT3018Y-R support
   - rv8803: proper suspend/resume and wakeup-source support"

* tag 'rtc-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (26 commits)
  rtc: nuvoton: Compatible with NCT3015Y-R and NCT3018Y-R
  rtc: da9063: Use dev_err_probe()
  rtc: da9063: Use device_get_match_data()
  rtc: da9063: Make IRQ as optional
  rtc: max31335: Fix comparison in max31335_volatile_reg()
  rtc: max31335: use regmap_update_bits_check
  rtc: max31335: remove unecessary locking
  rtc: max31335: add driver support
  dt-bindings: rtc: max31335: add max31335 bindings
  rtc: rv8803: add wakeup-source support
  rtc: ac100: remove misuses of kernel-doc
  rtc: class: Remove usage of the deprecated ida_simple_xx() API
  rtc: MAINTAINERS: drop Alessandro Zummo
  rtc: ma35d1: remove hardcoded UIE support
  dt-bindings: rtc: qcom-pm8xxx: fix inconsistent example
  rtc: rv8803: Add power management support
  rtc: ds3232: avoid unused-const-variable warning
  rtc: lpc24xx: add missing dependency
  rtc: tps6594: Add driver for TPS6594 RTC
  rtc: Add driver for Nuvoton ma35d1 rtc controller
  ...

Author: torvalds

Documentation/devicetree/bindings/rtc/adi,max31335.yaml

@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/adi,max31335.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX31335 RTC
+
+maintainers:
+  - Antoniu Miclaus <antoniu.miclaus@analog.com>
+
+description:
+  Analog Devices MAX31335 I2C RTC ±2ppm Automotive Real-Time Clock with
+  Integrated MEMS Resonator.
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    const: adi,max31335
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  "#clock-cells":
+    description:
+      RTC can be used as a clock source through its clock output pin.
+    const: 0
+
+  adi,tc-diode:
+    description:
+      Select the diode configuration for the trickle charger.
+      schottky - Schottky diode in series.
+      standard+schottky - standard diode + Schottky diode in series.
+    enum: [schottky, standard+schottky]
+
+  trickle-resistor-ohms:
+    description:
+      Selected resistor for trickle charger. Should be specified if trickle
+      charger should be enabled.
+    enum: [3000, 6000, 11000]
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        rtc@68 {
+            compatible = "adi,max31335";
+            reg = <0x68>;
+            pinctrl-0 = <&rtc_nint_pins>;
+            interrupts-extended = <&gpio1 16 IRQ_TYPE_LEVEL_HIGH>;
+            aux-voltage-chargeable = <1>;
+            trickle-resistor-ohms = <6000>;
+            adi,tc-diode = "schottky";
+        };
+    };
+...

Documentation/devicetree/bindings/rtc/epson,rx8900.yaml

@@ -29,6 +29,8 @@ properties:
 
   trickle-diode-disable: true
 
+  wakeup-source: true
+
 required:
   - compatible
   - reg

Documentation/devicetree/bindings/rtc/nuvoton,ma35d1-rtc.yaml

@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/nuvoton,ma35d1-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35D1 Real Time Clock
+
+maintainers:
+  - Min-Jen Chen <mjchen@nuvoton.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,ma35d1-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/nuvoton,ma35d1-clk.h>
+    rtc@40410000 {
+        compatible = "nuvoton,ma35d1-rtc";
+        reg = <0x40410000 0x200>;
+        interrupts = <GIC_SPI 5 IRQ_TYPE_EDGE_RISING>;
+        clocks = <&clk RTC_GATE>;
+    };
+
+...

Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml

@@ -61,27 +61,27 @@ additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/interrupt-controller/irq.h>
     #include <dt-bindings/spmi/spmi.h>
-    spmi_bus: spmi@c440000 {
-      reg = <0x0c440000 0x1100>;
-      #address-cells = <2>;
-      #size-cells = <0>;
-      pmicintc: pmic@0 {
-        reg = <0x0 SPMI_USID>;
-        compatible = "qcom,pm8921";
-        interrupts = <104 8>;
-        #interrupt-cells = <2>;
-        interrupt-controller;
-        #address-cells = <1>;
+
+    spmi {
+        #address-cells = <2>;
         #size-cells = <0>;
 
-        pm8921_rtc: rtc@11d {
-          compatible = "qcom,pm8921-rtc";
-          reg = <0x11d>;
-          interrupts = <0x27 0>;
-          nvmem-cells = <&rtc_offset>;
-          nvmem-cell-names = "offset";
+        pmic@0 {
+            compatible = "qcom,pm8941", "qcom,spmi-pmic";
+            reg = <0x0 SPMI_USID>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            rtc@6000 {
+                compatible = "qcom,pm8941-rtc";
+                reg = <0x6000>, <0x6100>;
+                reg-names = "rtc", "alarm";
+                interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
+                nvmem-cells = <&rtc_offset>;
+                nvmem-cell-names = "offset";
+            };
         };
-      };
     };
 ...

MAINTAINERS

@@ -13126,6 +13126,14 @@ F:	Documentation/devicetree/bindings/hwmon/adi,max31827.yaml
 F:	Documentation/hwmon/max31827.rst
 F:	drivers/hwmon/max31827.c
 
+MAX31335 RTC DRIVER
+M:	Antoniu Miclaus <antoniu.miclaus@analog.com>
+L:	linux-rtc@vger.kernel.org
+S:	Supported
+W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/devicetree/bindings/rtc/adi,max31335.yaml
+F:	drivers/rtc/rtc-max31335.c
+
 MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
 L:	linux-hwmon@vger.kernel.org
 S:	Orphan
@@ -18451,7 +18459,6 @@ X:	include/linux/srcu*.h
 X:	kernel/rcu/srcu*.c
 
 REAL TIME CLOCK (RTC) SUBSYSTEM
-M:	Alessandro Zummo <a.zummo@towertech.it>
 M:	Alexandre Belloni <alexandre.belloni@bootlin.com>
 L:	linux-rtc@vger.kernel.org
 S:	Maintained

arch/alpha/kernel/rtc.c

@@ -80,7 +80,7 @@ init_rtc_epoch(void)
 static int
 alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	int ret = mc146818_get_time(tm);
+	int ret = mc146818_get_time(tm, 10);
 
 	if (ret < 0) {
 		dev_err_ratelimited(dev, "unable to read current time\n");

arch/x86/kernel/hpet.c

@@ -1438,7 +1438,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 	memset(&curr_time, 0, sizeof(struct rtc_time));
 
 	if (hpet_rtc_flags & (RTC_UIE | RTC_AIE)) {
-		if (unlikely(mc146818_get_time(&curr_time) < 0)) {
+		if (unlikely(mc146818_get_time(&curr_time, 10) < 0)) {
 			pr_err_ratelimited("unable to read current time from RTC\n");
 			return IRQ_HANDLED;
 		}

arch/x86/kernel/rtc.c

@@ -67,7 +67,7 @@ void mach_get_cmos_time(struct timespec64 *now)
 		return;
 	}
 
-	if (mc146818_get_time(&tm)) {
+	if (mc146818_get_time(&tm, 1000)) {
 		pr_err("Unable to read current time from RTC\n");
 		now->tv_sec = now->tv_nsec = 0;
 		return;

drivers/base/power/trace.c

@@ -120,7 +120,7 @@ static unsigned int read_magic_time(void)
 	struct rtc_time time;
 	unsigned int val;
 
-	if (mc146818_get_time(&time) < 0) {
+	if (mc146818_get_time(&time, 1000) < 0) {
 		pr_err("Unable to read current time from RTC\n");
 		return 0;
 	}

drivers/rtc/Kconfig

@@ -373,6 +373,19 @@ config RTC_DRV_MAX8997
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-max8997.
 
+config RTC_DRV_MAX31335
+	tristate "Analog Devices MAX31335"
+	depends on I2C
+	depends on COMMON_CLK
+	depends on HWMON || HWMON=n
+	select REGMAP_I2C
+	help
+	  If you say yes here you get support for the Analog Devices
+	  MAX31335.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max31335.
+
 config RTC_DRV_MAX77686
 	tristate "Maxim MAX77686"
 	depends on MFD_MAX77686 || MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
@@ -578,6 +591,18 @@ config RTC_DRV_TPS6586X
 	  along with alarm. This driver supports the RTC driver for
 	  the TPS6586X RTC module.
 
+config RTC_DRV_TPS6594
+	tristate "TI TPS6594 RTC driver"
+	depends on MFD_TPS6594
+	default MFD_TPS6594
+	help
+	  TI Power Management IC TPS6594 supports RTC functionality
+	  along with alarm. This driver supports the RTC driver for
+	  the TPS6594 RTC module.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-tps6594.
+
 config RTC_DRV_TPS65910
 	tristate "TI TPS65910 RTC driver"
 	depends on MFD_TPS65910
@@ -1705,6 +1730,7 @@ config RTC_DRV_LPC24XX
 	tristate "NXP RTC for LPC178x/18xx/408x/43xx"
 	depends on ARCH_LPC18XX || COMPILE_TEST
 	depends on OF && HAS_IOMEM
+	depends on COMMON_CLK
 	help
 	  This enables support for the NXP RTC found which can be found on
 	  NXP LPC178x/18xx/408x/43xx devices.
@@ -1930,6 +1956,17 @@ config RTC_DRV_TI_K3
 	  This driver can also be built as a module, if so, the module
 	  will be called "rtc-ti-k3".
 
+config RTC_DRV_MA35D1
+	tristate "Nuvoton MA35D1 RTC"
+	depends on ARCH_MA35 || COMPILE_TEST
+	select REGMAP_MMIO
+	help
+	   If you say yes here you get support for the Nuvoton MA35D1
+	   On-Chip Real Time Clock.
+
+	   This driver can also be built as a module, if so, the module
+	   will be called "rtc-ma35d1".
+
 comment "HID Sensor RTC drivers"
 
 config RTC_DRV_HID_SENSOR_TIME