Merge tag 'rtc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "This cycle, we have a new RTC driver, for the SpacemiT P1. The optee
  driver gets alarm support. We also get a fix for a race condition that
  was fairly rare unless while stress testing the alarms.

  Subsystem:
   - Fix race when setting alarm
   - Ensure alarm irq is enabled when UIE is enabled
   - remove unneeded 'fast_io' parameter in regmap_config

  New driver:
   - SpacemiT P1 RTC

  Drivers:
   - efi: Remove wakeup functionality
   - optee: add alarms support
   - s3c: Drop support for S3C2410
   - zynqmp: Restore alarm functionality after kexec transition"

* tag 'rtc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (29 commits)
  rtc: interface: Ensure alarm irq is enabled when UIE is enabled
  rtc: tps6586x: Fix initial enable_irq/disable_irq balance
  rtc: cpcap: Fix initial enable_irq/disable_irq balance
  rtc: isl12022: Fix initial enable_irq/disable_irq balance
  rtc: interface: Fix long-standing race when setting alarm
  rtc: pcf2127: fix watchdog interrupt mask on pcf2131
  rtc: zynqmp: Restore alarm functionality after kexec transition
  rtc: amlogic-a4: Optimize global variables
  rtc: sd2405al: Add I2C address.
  rtc: Kconfig: move symbols to proper section
  rtc: optee: make optee_rtc_pm_ops static
  rtc: optee: Fix error code in optee_rtc_read_alarm()
  rtc: optee: fix error code in probe()
  dt-bindings: rtc: Convert apm,xgene-rtc to DT schema
  rtc: spacemit: support the SpacemiT P1 RTC
  rtc: optee: add alarm related rtc ops to optee rtc driver
  rtc: optee: remove unnecessary memory operations
  rtc: optee: fix memory leak on driver removal
  rtc: x1205: Fix Xicor X1205 vendor prefix
  dt-bindings: rtc: Fix Xicor X1205 vendor prefix
  ...

6 files changed, 52 insertions, 151 deletions

diff --git a/Documentation/devicetree/bindings/rtc/apm,xgene-rtc.yaml b/Documentation/devicetree/bindings/rtc/apm,xgene-rtc.yaml
new file mode 100644
index 000000000000..b8f46536fd5a
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/apm,xgene-rtc.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/apm,xgene-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: APM X-Gene Real Time Clock
+
+maintainers:
+  - Khuong Dinh <khuong@os.amperecomputing.com>
+
+properties:
+  compatible:
+    const: apm,xgene-rtc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - '#clock-cells'
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    rtc@10510000 {
+        compatible = "apm,xgene-rtc";
+        reg = <0x10510000 0x400>;
+        interrupts = <0x0 0x46 0x4>;
+        #clock-cells = <1>;
+        clocks = <&rtcclk 0>;
+    };
diff --git a/Documentation/devicetree/bindings/rtc/isil,isl12057.txt b/Documentation/devicetree/bindings/rtc/isil,isl12057.txt
deleted file mode 100644
index ff7c43555199..000000000000
--- a/Documentation/devicetree/bindings/rtc/isil,isl12057.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-Intersil ISL12057 I2C RTC/Alarm chip
-
-ISL12057 is a trivial I2C device (it has simple device tree bindings,
-consisting of a compatible field, an address and possibly an interrupt
-line).
-
-Nonetheless, it also supports an option boolean property
-("wakeup-source") to handle the specific use-case found
-on at least three in-tree users of the chip (NETGEAR ReadyNAS 102, 104
-and 2120 ARM-based NAS); On those devices, the IRQ#2 pin of the chip
-(associated with the alarm supported by the driver) is not connected
-to the SoC but to a PMIC. It allows the device to be powered up when
-RTC alarm rings. In order to mark the device has a wakeup source and
-get access to the 'wakealarm' sysfs entry, this specific property can
-be set when the IRQ#2 pin of the chip is not connected to the SoC but
-can wake up the device.
-
-Required properties supported by the device:
-
- - "compatible": must be "isil,isl12057"
- - "reg": I2C bus address of the device
-
-Optional properties:
-
- - "wakeup-source": mark the chip as a wakeup source, independently of
-    the availability of an IRQ line connected to the SoC.
-
-
-Example isl12057 node without IRQ#2 pin connected (no alarm support):
-
-	isl12057: isl12057@68 {
-		compatible = "isil,isl12057";
-		reg = <0x68>;
-	};
-
-
-Example isl12057 node with IRQ#2 pin connected to main SoC via MPP6 (note
-that the pinctrl-related properties below are given for completeness and
-may not be required or may be different depending on your system or
-SoC, and the main function of the MPP used as IRQ line, i.e.
-"interrupt-parent" and "interrupts" are usually sufficient):
-
-		    pinctrl {
-				...
-
-				rtc_alarm_pin: rtc_alarm_pin {
-					marvell,pins = "mpp6";
-					marvell,function = "gpio";
-				};
-
-				...
-
-		    };
-
-	...
-
-	isl12057: isl12057@68 {
-		compatible = "isil,isl12057";
-		reg = <0x68>;
-		pinctrl-0 = <&rtc_alarm_pin>;
-		pinctrl-names = "default";
-		interrupt-parent = <&gpio0>;
-		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
-	};
-
-
-Example isl12057 node without IRQ#2 pin connected to the SoC but to a
-PMIC, allowing the device to be started based on configured alarm:
-
-	isl12057: isl12057@68 {
-		compatible = "isil,isl12057";
-		reg = <0x68>;
-		wakeup-source;
-	};
diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
index 1e6277e524c2..f7013cd8fc20 100644
--- a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
+++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
@@ -65,16 +65,6 @@ allOf:
   - if:
       properties:
         compatible:
-          contains:
-            enum:
-              - nxp,pcf85063
-    then:
-      properties:
-        quartz-load-femtofarads:
-          const: 7000
-  - if:
-      properties:
-        compatible:
           not:
             contains:
               enum:
diff --git a/Documentation/devicetree/bindings/rtc/s3c-rtc.yaml b/Documentation/devicetree/bindings/rtc/s3c-rtc.yaml
index bf4e11d6dffb..338874e7ed7f 100644
--- a/Documentation/devicetree/bindings/rtc/s3c-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/s3c-rtc.yaml
@@ -13,9 +13,6 @@ properties:
   compatible:
     oneOf:
       - enum:
-          - samsung,s3c2410-rtc
-          - samsung,s3c2416-rtc
-          - samsung,s3c2443-rtc
           - samsung,s3c6410-rtc
       - items:
           - enum:
@@ -29,19 +26,12 @@ properties:
     maxItems: 1
 
   clocks:
-    description:
-      Must contain a list of phandle and clock specifier for the rtc
-      clock and in the case of a s3c6410 compatible controller, also
-      a source clock.
-    minItems: 1
     maxItems: 2
 
   clock-names:
-    description:
-      Must contain "rtc" and for a s3c6410 compatible controller
-      also "rtc_src".
-    minItems: 1
-    maxItems: 2
+    items:
+      - const: rtc
+      - const: rtc_src
 
   interrupts:
     description:
@@ -54,30 +44,6 @@ properties:
 
 allOf:
   - $ref: rtc.yaml#
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - samsung,s3c6410-rtc
-              - samsung,exynos3250-rtc
-    then:
-      properties:
-        clocks:
-          minItems: 2
-          maxItems: 2
-        clock-names:
-          items:
-            - const: rtc
-            - const: rtc_src
-    else:
-      properties:
-        clocks:
-          minItems: 1
-          maxItems: 1
-        clock-names:
-          items:
-            - const: rtc
 
 unevaluatedProperties: false
 
diff --git a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
index 5e0c7cd25cc6..b47822370d6f 100644
--- a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
@@ -38,6 +38,8 @@ properties:
       - dallas,ds1672
       # Extremely Accurate I²C RTC with Integrated Crystal and SRAM
       - dallas,ds3232
+      # Dallas m41t00 Real-time Clock
+      - dallas,m41t00
       # SD2405AL Real-Time Clock
       - dfrobot,sd2405al
       # EM Microelectronic EM3027 RTC
@@ -83,8 +85,8 @@ properties:
       - via,vt8500-rtc
       # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
       - whwave,sd3078
-      # Xircom X1205 I2C RTC
-      - xircom,x1205
+      # Xicor/Intersil X1205 I2C RTC
+      - xicor,x1205
 
   reg:
     maxItems: 1
diff --git a/Documentation/devicetree/bindings/rtc/xgene-rtc.txt b/Documentation/devicetree/bindings/rtc/xgene-rtc.txt
deleted file mode 100644
index fd195c358446..000000000000
--- a/Documentation/devicetree/bindings/rtc/xgene-rtc.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-* APM X-Gene Real Time Clock
-
-RTC controller for the APM X-Gene Real Time Clock
-
-Required properties:
-- compatible : Should be "apm,xgene-rtc"
-- reg: physical base address of the controller and length of memory mapped
-  region.
-- interrupts: IRQ line for the RTC.
-- #clock-cells: Should be 1.
-- clocks: Reference to the clock entry.
-
-Example:
-
-rtcclk: rtcclk {
-	compatible = "fixed-clock";
-	#clock-cells = <1>;
-	clock-frequency = <100000000>;
-	clock-output-names = "rtcclk";
-};
-
-rtc: rtc@10510000 {
-	compatible = "apm,xgene-rtc";
-	reg = <0x0 0x10510000 0x0 0x400>;
-	interrupts = <0x0 0x46 0x4>;
-	#clock-cells = <1>;
-	clocks = <&rtcclk 0>;
-};