Merge tag 'rtc-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git…

…/abelloni/linux Pull RTC updates from Alexandre Belloni: "New drivers: - Amlogic A4 and A5 RTC - Marvell 88PM886 PMIC RTC - Renesas RTCA-3 for Renesas RZ/G3S Driver updates: - ab-eoz9: fix temperature and alarm support - cmos: improve locking behaviour - isl12022: add alarm support - m48t59: improve epoch handling - mt6359: add range - rzn1: fix BCD conversions and simplify driver" * tag 'rtc-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (38 commits) rtc: ab-eoz9: don't fail temperature reads on undervoltage notification rtc: rzn1: reduce register access rtc: rzn1: drop superfluous wday calculation m68k: mvme147, mvme16x: Adopt rtc-m48t59 platform driver rtc: brcmstb-waketimer: don't include 'pm_wakeup.h' directly rtc: m48t59: Use platform_data struct for year offset value rtc: ab-eoz9: fix abeoz9_rtc_read_alarm rtc: rv3028: fix RV3028_TS_COUNT type rtc: rzn1: update Michel's email rtc: rzn1: fix BCD to rtc_time conversion errors rtc: amlogic-a4: fix compile error rtc: amlogic-a4: drop error messages MAINTAINERS: Add an entry for Amlogic RTC driver rtc: support for the Amlogic on-chip RTC dt-bindings: rtc: Add Amlogic A4 and A5 RTC rtc: add driver for Marvell 88PM886 PMIC RTC rtc: check if __rtc_read_time was successful in rtc_timer_do_work() rtc: pcf8563: Switch to regmap rtc: pcf8563: Sort headers alphabetically rtc: abx80x: Fix WDT bit position of the status register ...
mariux64 · Nov 30, 2024 · 0e287d3 · 0e287d3
2 parents 831c192 + e0779a0
commit 0e287d3
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diff --git a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
@@ -30,7 +30,9 @@ properties:
           - const: allwinner,sun50i-a64-rtc
           - const: allwinner,sun8i-h3-rtc
       - items:
-          - const: allwinner,sun20i-d1-rtc
+          - enum:
+              - allwinner,sun20i-d1-rtc
+              - allwinner,sun55i-a523-rtc
           - const: allwinner,sun50i-r329-rtc
 
   reg:

diff --git a/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2024 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/amlogic,a4-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic A4 and A5 RTC
+
+maintainers:
+  - Yiting Deng <yiting.deng@amlogic.com>
+  - Xianwei Zhao <xianwei.zhao@amlogic.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    enum:
+      - amlogic,a4-rtc
+      - amlogic,a5-rtc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: RTC clock source, available 24M or 32K crystal
+          oscillator source. when using 24M, need to divide 24M into 32K.
+      - description: RTC module accesses the clock of the apb bus.
+
+  clock-names:
+    items:
+      - const: osc
+      - const: sys
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    apb {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        rtc@8e600 {
+            compatible = "amlogic,a4-rtc";
+            reg = <0x0 0x8e600 0x0 0x38>;
+            clocks = <&xtal_32k>, <&clkc_periphs 1>;
+            clock-names = "osc", "sys";
+            interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>;
+        };
+    };
diff --git a/...tree/bindings/rtc/microchip,mfps-rtc.yaml → ...tree/bindings/rtc/microchip,mpfs-rtc.yaml b/...tree/bindings/rtc/microchip,mfps-rtc.yaml → ...tree/bindings/rtc/microchip,mpfs-rtc.yaml
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/rtc/microchip,mfps-rtc.yaml#
+$id: http://devicetree.org/schemas/rtc/microchip,mpfs-rtc.yaml#
 
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
@@ -12,12 +12,14 @@ allOf:
 
 maintainers:
   - Daire McNamara <daire.mcnamara@microchip.com>
-  - Lewis Hanly <lewis.hanly@microchip.com>
 
 properties:
   compatible:
-    enum:
-      - microchip,mpfs-rtc
+    oneOf:
+      - items:
+          - const: microchip,pic64gx-rtc
+          - const: microchip,mpfs-rtc
+      - const: microchip,mpfs-rtc
 
   reg:
     maxItems: 1

diff --git a/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml b/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/renesas,rz-rtca3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RTCA-3 Real Time Clock
+
+maintainers:
+  - Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - renesas,r9a08g045-rtca3 # RZ/G3S
+      - const: renesas,rz-rtca3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: Alarm interrupt
+      - description: Periodic interrupt
+      - description: Carry interrupt
+
+  interrupt-names:
+    items:
+      - const: alarm
+      - const: period
+      - const: carry
+
+  clocks:
+    items:
+      - description: RTC bus clock
+      - description: RTC counter clock
+
+  clock-names:
+    items:
+      - const: bus
+      - const: counter
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    items:
+      - description: VBATTB module reset
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+  - clock-names
+  - power-domains
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/r9a08g045-cpg.h>
+    #include <dt-bindings/clock/renesas,r9a08g045-vbattb.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    rtc@1004ec00 {
+        compatible = "renesas,r9a08g045-rtca3", "renesas,rz-rtca3";
+        reg = <0x1004ec00 0x400>;
+        interrupts = <GIC_SPI 315 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 316 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 317 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-names = "alarm", "period", "carry";
+        clocks = <&cpg CPG_MOD R9A08G045_VBAT_BCLK>, <&vbattclk VBATTB_VBATTCLK>;
+        clock-names = "bus", "counter";
+        power-domains = <&cpg>;
+        resets = <&cpg R9A08G045_VBAT_BRESETN>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
@@ -1218,6 +1218,14 @@ F:	Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml
 F:	drivers/perf/amlogic/
 F:	include/soc/amlogic/
 
+AMLOGIC RTC DRIVER
+M:	Yiting Deng <yiting.deng@amlogic.com>
+M:	Xianwei Zhao <xianwei.zhao@amlogic.com>
+L:	linux-amlogic@lists.infradead.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml
+F:	drivers/rtc/rtc-amlogic-a4.c
+
 AMPHENOL CHIPCAP 2 HUMIDITY-TEMPERATURE IIO DRIVER
 M:	Javier Carrasco <javier.carrasco.cruz@gmail.com>
 L:	linux-hwmon@vger.kernel.org
@@ -13794,6 +13802,7 @@ F:	Documentation/devicetree/bindings/mfd/marvell,88pm886-a1.yaml
 F:	drivers/input/misc/88pm886-onkey.c
 F:	drivers/mfd/88pm886.c
 F:	drivers/regulator/88pm886-regulator.c
+F:	drivers/rtc/rtc-88pm886.c
 F:	include/linux/mfd/88pm886.h
 
 MARVELL ARMADA 3700 PHY DRIVERS
@@ -19915,6 +19924,14 @@ S:	Supported
 F:	Documentation/devicetree/bindings/timer/renesas,rz-mtu3.yaml
 F:	drivers/counter/rz-mtu3-cnt.c
 
+RENESAS RTCA-3 RTC DRIVER
+M:	Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
+L:	linux-rtc@vger.kernel.org
+L:	linux-renesas-soc@vger.kernel.org
+S:	Supported
+F:	Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml
+F:	drivers/rtc/rtc-renesas-rtca3.c
+
 RENESAS RZ/N1 A5PSW SWITCH DRIVER
 M:	Clément Léger <clement.leger@bootlin.com>
 L:	linux-renesas-soc@vger.kernel.org

diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
@@ -503,6 +503,7 @@ CONFIG_UHID=m
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_NVMEM is not set
+CONFIG_RTC_DRV_M48T59=m
 CONFIG_RTC_DRV_MSM6242=m
 CONFIG_RTC_DRV_RP5C01=m
 CONFIG_RTC_DRV_GENERIC=m

diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
@@ -391,6 +391,7 @@ CONFIG_UHID=m
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_NVMEM is not set
+CONFIG_RTC_DRV_M48T59=y
 CONFIG_RTC_DRV_GENERIC=m
 # CONFIG_VIRTIO_MENU is not set
 # CONFIG_VHOST_MENU is not set

diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
@@ -392,6 +392,7 @@ CONFIG_UHID=m
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_NVMEM is not set
+CONFIG_RTC_DRV_M48T59=y
 CONFIG_RTC_DRV_GENERIC=m
 # CONFIG_VIRTIO_MENU is not set
 # CONFIG_VHOST_MENU is not set

diff --git a/arch/m68k/include/asm/mvme147hw.h b/arch/m68k/include/asm/mvme147hw.h
@@ -4,24 +4,7 @@
 
 #include <asm/irq.h>
 
-typedef struct {
-	unsigned char
-		ctrl,
-		bcd_sec,
-		bcd_min,
-		bcd_hr,
-		bcd_dow,
-		bcd_dom,
-		bcd_mth,
-		bcd_year;
-} MK48T02;
-
-#define RTC_WRITE	0x80
-#define RTC_READ	0x40
-#define RTC_STOP	0x20
-
-#define m147_rtc ((MK48T02 * volatile)0xfffe07f8)
-
+#define MVME147_RTC_BASE	0xfffe0000
 
 struct pcc_regs {
    volatile u_long	dma_tadr;

diff --git a/arch/m68k/include/asm/mvme16xhw.h b/arch/m68k/include/asm/mvme16xhw.h
@@ -24,23 +24,7 @@ typedef struct {
 
 #define mvmelp   ((*(volatile MVMElpPtr)(MVME_LPR_BASE)))
 
-typedef struct {
-	unsigned char
-		ctrl,
-		bcd_sec,
-		bcd_min,
-		bcd_hr,
-		bcd_dow,
-		bcd_dom,
-		bcd_mth,
-		bcd_year;
-} MK48T08_t, *MK48T08ptr_t;
-
-#define RTC_WRITE	0x80
-#define RTC_READ	0x40
-#define RTC_STOP	0x20
-
-#define MVME_RTC_BASE	0xfffc1ff8
+#define MVME_RTC_BASE	0xfffc0000
 
 #define MVME_I596_BASE	0xfff46000
 

diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c
@@ -19,8 +19,9 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <linux/major.h>
-#include <linux/rtc.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/rtc/m48t59.h>
 
 #include <asm/bootinfo.h>
 #include <asm/bootinfo-vme.h>
@@ -36,13 +37,9 @@
 
 static void mvme147_get_model(char *model);
 static void __init mvme147_sched_init(void);
-extern int mvme147_hwclk (int, struct rtc_time *);
 extern void mvme147_reset (void);
 
 
-static int bcd2int (unsigned char b);
-
-
 int __init mvme147_parse_bootinfo(const struct bi_record *bi)
 {
 	uint16_t tag = be16_to_cpu(bi->tag);
@@ -80,7 +77,6 @@ void __init config_mvme147(void)
 {
 	mach_sched_init		= mvme147_sched_init;
 	mach_init_IRQ		= mvme147_init_IRQ;
-	mach_hwclk		= mvme147_hwclk;
 	mach_reset		= mvme147_reset;
 	mach_get_model		= mvme147_get_model;
 
@@ -89,6 +85,28 @@ void __init config_mvme147(void)
 		vme_brdtype = VME_TYPE_MVME147;
 }
 
+static struct resource m48t59_rsrc[] = {
+	DEFINE_RES_MEM(MVME147_RTC_BASE, 0x800),
+};
+
+static struct m48t59_plat_data m48t59_data = {
+	.type = M48T59RTC_TYPE_M48T02,
+	.yy_offset = 70,
+};
+
+static int __init mvme147_platform_init(void)
+{
+	if (!MACH_IS_MVME147)
+		return 0;
+
+	platform_device_register_resndata(NULL, "rtc-m48t59", -1,
+					  m48t59_rsrc, ARRAY_SIZE(m48t59_rsrc),
+					  &m48t59_data, sizeof(m48t59_data));
+	return 0;
+}
+
+arch_initcall(mvme147_platform_init);
+
 static u64 mvme147_read_clk(struct clocksource *cs);
 
 static struct clocksource mvme147_clk = {
@@ -162,31 +180,6 @@ static u64 mvme147_read_clk(struct clocksource *cs)
 	return ticks;
 }
 
-static int bcd2int (unsigned char b)
-{
-	return ((b>>4)*10 + (b&15));
-}
-
-int mvme147_hwclk(int op, struct rtc_time *t)
-{
-	if (!op) {
-		m147_rtc->ctrl = RTC_READ;
-		t->tm_year = bcd2int (m147_rtc->bcd_year);
-		t->tm_mon  = bcd2int(m147_rtc->bcd_mth) - 1;
-		t->tm_mday = bcd2int (m147_rtc->bcd_dom);
-		t->tm_hour = bcd2int (m147_rtc->bcd_hr);
-		t->tm_min  = bcd2int (m147_rtc->bcd_min);
-		t->tm_sec  = bcd2int (m147_rtc->bcd_sec);
-		m147_rtc->ctrl = 0;
-		if (t->tm_year < 70)
-			t->tm_year += 100;
-	} else {
-		/* FIXME Setting the time is not yet supported */
-		return -EOPNOTSUPP;
-	}
-	return 0;
-}
-
 static void scc_delay(void)
 {
 	__asm__ __volatile__ ("nop; nop;");

diff --git a/arch/m68k/mvme16x/Makefile b/arch/m68k/mvme16x/Makefile
@@ -3,4 +3,4 @@
 # Makefile for Linux arch/m68k/mvme16x source directory
 #
 
-obj-y		:= config.o rtc.o
+obj-y		:= config.o