Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "A couple of platforms change hands in the MAINTAINERS file:

   - Linus Walleij lists himself for the ARM Reference platforms:
     versatile, vexpress, integrator and realview. He has been the main
     contributor for these for a while, and makes it official now.

   - Vladimir Zapolskiy takes over the LPC18xx platform from Joachim
     Eastwood

   - Manivannan Sadhasivam becomes a secondary maintainer for the
     Actions Semi machines

   - Nicolas Ferre lists updates the MAINTAINER listing for the AT91
     platform: Ludovic Desroches is now a co-maintainer for the
     platform, and several other people (Claudiu Beznea, Cristian
     Birsan, Eugen Hristev, Codrin Ciubotariu) take over individual
     device drivers.

  Thanks everyone for working on this, and welcome to the new
  maintainers!

  The "virt" platform on qemy or kvm can now be used in big-endian mode
  without additional tricks, thanks to Jason Donenfeld.

  Once again, we gain support for another NXP i.MX6 variant, this time
  it's the i.MX 6ULZ 32-bit single-core version.

  On arm64, we add support for two SoCs from Renesas: RZ/G2E (r8a774c0)
  and RZ/G2M (r8a774a1). These are described as microcontrollers on the
  manufacturer website, but appear to be rather powerful. The RZ/G2M is
  used on the reference board for the CIP Super Long Term Support (SLTS)
  Linux Kernels"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
  MAINTAINERS: Assign myself as a maintainer of ARM/LPC18XX architecture
  arm64: exynos: Enable generic power domain support
  MAINTAINERS: remove non-exsiting email address of Baoyou
  MAINTAINERS: fix pattern in ARM/Synaptics berlin SoC section
  MAINTAINERS: Drop dt-bindings/genpd/k2g.h
  ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms
  arm64: actions: Enable PINCTRL in platforms Kconfig
  MAINTAINERS: Add entry for Actions Semi Owl SoCs DMA driver
  MAINTAINERS: Add entry for Actions Semiconductor Owl I2C driver
  MAINTAINERS: Update clock binding entry for Actions Semi Owl SoCs
  ARM: imx: add i.mx6ulz msl support
  ARM: Assume maintainership of ARM reference designs
  ARM: support big-endian for the virt architecture
  MAINTAINERS: sdhci: move the Microchip entry to proper location
  MAINTAINERS: move former ATMEL entries to proper MICROCHIP location
  MAINTAINERS: remove the / ATMEL string from MICROCHIP entries
  MAINTAINERS: iio: add co-maintainer to SAMA5D2-compatible ADC driver
  MAINTAINERS: pwm: add entry for Microchip pwm driver
  MAINTAINERS: dmaengine: add files to Microchip dma entry
  MAINTAINERS: USB: change maintainer for Microchip USBA gadget driver
  ...

arch/arm/mach-shmobile/Kconfig

@@ -1,6 +1,4 @@
-config ARCH_SHMOBILE
-	bool
-
+# SPDX-License-Identifier: GPL-2.0
 config PM_RMOBILE
 	bool
 	select PM
@@ -30,7 +28,6 @@ config ARCH_RMOBILE
 menuconfig ARCH_RENESAS
 	bool "Renesas ARM SoCs"
 	depends on ARCH_MULTI_V7 && MMU
-	select ARCH_SHMOBILE
 	select ARM_GIC
 	select GPIOLIB
 	select HAVE_ARM_SCU if SMP
@@ -78,6 +75,11 @@ config ARCH_R8A7743
 	select ARCH_RCAR_GEN2
 	select ARM_ERRATA_798181 if SMP
 
+config ARCH_R8A7744
+	bool "RZ/G1N (R8A77440)"
+	select ARCH_RCAR_GEN2
+	select ARM_ERRATA_798181 if SMP
+
 config ARCH_R8A7745
 	bool "RZ/G1E (R8A77450)"
 	select ARCH_RCAR_GEN2

arch/arm/mach-shmobile/headsmp-scu.S

@@ -1,17 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0+
+ *
  * Shared SCU setup for mach-shmobile
  *
  * Copyright (C) 2012 Bastian Hecht
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/linkage.h>

arch/arm/mach-shmobile/headsmp.S

@@ -1,14 +1,11 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * SMP support for R-Mobile / SH-Mobile
  *
  * Copyright (C) 2010  Magnus Damm
  * Copyright (C) 2010  Takashi Yoshii
  *
  * Based on vexpress, Copyright (c) 2003 ARM Limited, All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/init.h>
 #include <linux/linkage.h>

arch/arm/mach-shmobile/platsmp-scu.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SMP support for SoCs with SCU covered by mach-shmobile
  *
  * Copyright (C) 2013  Magnus Damm
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/cpu.h>
 #include <linux/delay.h>

arch/arm/mach-shmobile/platsmp.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SMP support for R-Mobile / SH-Mobile
  *
@@ -5,10 +6,6 @@
  * Copyright (C) 2011  Paul Mundt
  *
  * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/init.h>
 #include <asm/cacheflush.h>

arch/arm/mach-shmobile/pm-rcar-gen2.c

@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R-Car Generation 2 Power management support
  *
  * Copyright (C) 2013 - 2015  Renesas Electronics Corporation
  * Copyright (C) 2011  Renesas Solutions Corp.
  * Copyright (C) 2011  Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 
 #include <linux/kernel.h>

arch/arm/mach-shmobile/pm-rmobile.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * rmobile power management support
  *
@@ -7,10 +8,6 @@
  *
  * based on pm-sh7372.c
  *  Copyright (C) 2011 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/clk/renesas.h>
 #include <linux/console.h>
@@ -189,7 +186,7 @@ static void __init add_special_pd(struct device_node *np, enum pd_types type)
 		return;
 	}
 
-	pr_debug("Special PM domain %s type %d for %pOF\n", pd->name, type, np);
+	pr_debug("Special PM domain %pOFn type %d for %pOF\n", pd, type, np);
 
 	special_pds[num_special_pds].pd = pd;
 	special_pds[num_special_pds].type = type;

arch/arm/mach-shmobile/pm-rmobile.h

@@ -1,11 +1,8 @@
-/*
+/* SPDX-License-Identifier: GPL-2.0
+ *
  * Copyright (C) 2012 Renesas Solutions Corp.
  *
  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #ifndef PM_RMOBILE_H
 #define PM_RMOBILE_H

arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c

@@ -23,11 +23,12 @@
 #include <linux/i2c.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/list.h>
 #include <linux/notifier.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/mfd/da9063/registers.h>
 
-
 #define IRQC_BASE		0xe61c0000
 #define IRQC_MONITOR		0x104	/* IRQn Signal Level Monitor Register */
 
@@ -36,34 +37,45 @@
 /* start of DA9210 System Control and Event Registers */
 #define DA9210_REG_MASK_A		0x54
 
+struct regulator_quirk {
+	struct list_head		list;
+	const struct of_device_id	*id;
+	struct of_phandle_args		irq_args;
+	struct i2c_msg			i2c_msg;
+	bool				shared;	/* IRQ line is shared */
+};
+
+static LIST_HEAD(quirk_list);
 static void __iomem *irqc;
 
 /* first byte sets the memory pointer, following are consecutive reg values */
 static u8 da9063_irq_clr[] = { DA9063_REG_IRQ_MASK_A, 0xff, 0xff, 0xff, 0xff };
 static u8 da9210_irq_clr[] = { DA9210_REG_MASK_A, 0xff, 0xff };
 
-static struct i2c_msg da9xxx_msgs[3] = {
-	{
-		.addr = 0x58,
-		.len = ARRAY_SIZE(da9063_irq_clr),
-		.buf = da9063_irq_clr,
-	}, {
-		.addr = 0x68,
-		.len = ARRAY_SIZE(da9210_irq_clr),
-		.buf = da9210_irq_clr,
-	}, {
-		.addr = 0x70,
-		.len = ARRAY_SIZE(da9210_irq_clr),
-		.buf = da9210_irq_clr,
-	},
+static struct i2c_msg da9063_msg = {
+	.len = ARRAY_SIZE(da9063_irq_clr),
+	.buf = da9063_irq_clr,
+};
+
+static struct i2c_msg da9210_msg = {
+	.len = ARRAY_SIZE(da9210_irq_clr),
+	.buf = da9210_irq_clr,
+};
+
+static const struct of_device_id rcar_gen2_quirk_match[] = {
+	{ .compatible = "dlg,da9063", .data = &da9063_msg },
+	{ .compatible = "dlg,da9210", .data = &da9210_msg },
+	{},
 };
 
 static int regulator_quirk_notify(struct notifier_block *nb,
 				  unsigned long action, void *data)
 {
+	struct regulator_quirk *pos, *tmp;
 	struct device *dev = data;
 	struct i2c_client *client;
 	static bool done;
+	int ret;
 	u32 mon;
 
 	if (done)
@@ -80,17 +92,20 @@ static int regulator_quirk_notify(struct notifier_block *nb,
 	client = to_i2c_client(dev);
 	dev_dbg(dev, "Detected %s\n", client->name);
 
-	if ((client->addr == 0x58 && !strcmp(client->name, "da9063")) ||
-	    (client->addr == 0x68 && !strcmp(client->name, "da9210")) ||
-	    (client->addr == 0x70 && !strcmp(client->name, "da9210"))) {
-		int ret, len;
+	/*
+	 * Send message to all PMICs that share an IRQ line to deassert it.
+	 *
+	 * WARNING: This works only if all the PMICs are on the same I2C bus.
+	 */
+	list_for_each_entry(pos, &quirk_list, list) {
+		if (!pos->shared)
+			continue;
 
-		/* There are two DA9210 on Stout, one on the other boards. */
-		len = of_machine_is_compatible("renesas,stout") ? 3 : 2;
+		dev_info(&client->dev, "clearing %s@0x%02x interrupts\n",
+			 pos->id->compatible, pos->i2c_msg.addr);
 
-		dev_info(&client->dev, "clearing da9063/da9210 interrupts\n");
-		ret = i2c_transfer(client->adapter, da9xxx_msgs, len);
-		if (ret != len)
+		ret = i2c_transfer(client->adapter, &pos->i2c_msg, 1);
+		if (ret != 1)
 			dev_err(&client->dev, "i2c error %d\n", ret);
 	}
 
@@ -103,6 +118,11 @@ static int regulator_quirk_notify(struct notifier_block *nb,
 remove:
 	dev_info(dev, "IRQ2 is not asserted, removing quirk\n");
 
+	list_for_each_entry_safe(pos, tmp, &quirk_list, list) {
+		list_del(&pos->list);
+		kfree(pos);
+	}
+
 	done = true;
 	iounmap(irqc);
 	return 0;
@@ -114,7 +134,12 @@ static struct notifier_block regulator_quirk_nb = {
 
 static int __init rcar_gen2_regulator_quirk(void)
 {
-	u32 mon;
+	struct regulator_quirk *quirk, *pos, *tmp;
+	struct of_phandle_args *argsa, *argsb;
+	const struct of_device_id *id;
+	struct device_node *np;
+	u32 mon, addr;
+	int ret;
 
 	if (!of_machine_is_compatible("renesas,koelsch") &&
 	    !of_machine_is_compatible("renesas,lager") &&
@@ -122,22 +147,78 @@ static int __init rcar_gen2_regulator_quirk(void)
 	    !of_machine_is_compatible("renesas,gose"))
 		return -ENODEV;
 
+	for_each_matching_node_and_match(np, rcar_gen2_quirk_match, &id) {
+		if (!of_device_is_available(np))
+			break;
+
+		ret = of_property_read_u32(np, "reg", &addr);
+		if (ret)	/* Skip invalid entry and continue */
+			continue;
+
+		quirk = kzalloc(sizeof(*quirk), GFP_KERNEL);
+		if (!quirk) {
+			ret = -ENOMEM;
+			goto err_mem;
+		}
+
+		argsa = &quirk->irq_args;
+		memcpy(&quirk->i2c_msg, id->data, sizeof(quirk->i2c_msg));
+
+		quirk->id = id;
+		quirk->i2c_msg.addr = addr;
+
+		ret = of_irq_parse_one(np, 0, argsa);
+		if (ret) {	/* Skip invalid entry and continue */
+			kfree(quirk);
+			continue;
+		}
+
+		list_for_each_entry(pos, &quirk_list, list) {
+			argsb = &pos->irq_args;
+
+			if (argsa->args_count != argsb->args_count)
+				continue;
+
+			ret = memcmp(argsa->args, argsb->args,
+				     argsa->args_count *
+				     sizeof(argsa->args[0]));
+			if (!ret) {
+				pos->shared = true;
+				quirk->shared = true;
+			}
+		}
+
+		list_add_tail(&quirk->list, &quirk_list);
+	}
+
 	irqc = ioremap(IRQC_BASE, PAGE_SIZE);
-	if (!irqc)
-		return -ENOMEM;
+	if (!irqc) {
+		ret = -ENOMEM;
+		goto err_mem;
+	}
 
 	mon = ioread32(irqc + IRQC_MONITOR);
 	if (mon & REGULATOR_IRQ_MASK) {
 		pr_debug("%s: IRQ2 is not asserted, not installing quirk\n",
 			 __func__);
-		iounmap(irqc);
-		return 0;
+		ret = 0;
+		goto err_free;
 	}
 
 	pr_info("IRQ2 is asserted, installing da9063/da9210 regulator quirk\n");
 
 	bus_register_notifier(&i2c_bus_type, &regulator_quirk_nb);
 	return 0;
+
+err_free:
+	iounmap(irqc);
+err_mem:
+	list_for_each_entry_safe(pos, tmp, &quirk_list, list) {
+		list_del(&pos->list);
+		kfree(pos);
+	}
+
+	return ret;
 }
 
 arch_initcall(rcar_gen2_regulator_quirk);

arch/arm/mach-shmobile/setup-r8a7779.c

@@ -7,9 +7,7 @@
  * Copyright (C) 2013  Cogent Embedded, Inc.
  */
 #include <linux/init.h>
-#include <linux/irq.h>
 #include <linux/irqchip.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>

arch/arm/mach-shmobile/setup-rcar-gen2.c

@@ -25,6 +25,7 @@
 static const struct of_device_id cpg_matches[] __initconst = {
 	{ .compatible = "renesas,rcar-gen2-cpg-clocks", },
 	{ .compatible = "renesas,r8a7743-cpg-mssr", .data = "extal" },
+	{ .compatible = "renesas,r8a7744-cpg-mssr", .data = "extal" },
 	{ .compatible = "renesas,r8a7790-cpg-mssr", .data = "extal" },
 	{ .compatible = "renesas,r8a7791-cpg-mssr", .data = "extal" },
 	{ .compatible = "renesas,r8a7793-cpg-mssr", .data = "extal" },
@@ -193,6 +194,7 @@ MACHINE_END
 
 static const char * const rz_g1_boards_compat_dt[] __initconst = {
 	"renesas,r8a7743",
+	"renesas,r8a7744",
 	"renesas,r8a7745",
 	"renesas,r8a77470",
 	NULL,

arch/arm/mach-shmobile/smp-sh73a0.c

@@ -1,17 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SMP support for R-Mobile / SH-Mobile - sh73a0 portion
  *
  * Copyright (C) 2010  Magnus Damm
  * Copyright (C) 2010  Takashi Yoshii
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 #include <linux/kernel.h>
 #include <linux/init.h>

arch/arm/mach-shmobile/suspend.c

@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Suspend-to-RAM support code for SH-Mobile ARM
  *
  *  Copyright (C) 2011 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 
 #include <linux/pm.h>

arch/arm/mach-shmobile/timer.c

@@ -1,17 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SH-Mobile Timer
  *
  * Copyright (C) 2010  Magnus Damm
  * Copyright (C) 2002 - 2009  Paul Mundt
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 #include <linux/platform_device.h>
 #include <linux/clocksource.h>