Merge tag 'soc-arm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socHEADmaster

Pull ARM SoC platform updates from Arnd Bergmann:
 "The 32-bit Arm platforms are a bit more interesting this time: I
  refreshed an earlier series to mark code as deprecated that does have
  the tendency of getting in the way of cleanups and new features but
  has close to zero users. Among these are:

   - 22 of the remaining 28 legacy board files that predate the current
     devicetree based descriptions, using old chips from Intel and
     Marvell. The remaining six board files are for TI OMAP1 and Samsung
     s3c64xx chips and all still have known users.

   - support for Cortex-M3/M4/M7 and ARM1136r0 CPU cores and the 25
     machines based on these. These all use devicetree but the CPU
     support causes disproportional work. Most of them are just
     reference boards, the notable exceptions being the Nokia N800/N810
     tablet and the Buglabs BUG platform.

   - be8, be32, oabi and iwmmxt userspace binaries, which were mostly
     associated with the platforms now scheduled for removal and are
     increasingly problematic to support with modern toolchains.

  Nothing is actually removed at this point, to ensure that any
  remaining users continue to have the 7.3-LTS for a while longer.
  Patches for removal are currently being tested.

  Other updates include a continued work to convert GPIO number based
  interfaces to descriptors, a patch to restore little-endian mode on
  the one Arm platform (ixp4xx) that only worked in big-endian mode
  recently, and some minor cleanups and bugfixes"

* tag 'soc-arm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (41 commits)
  MAINTAINERS: Drop redundant lists from various Samsung entries
  ARM: tegra: Replace __ASSEMBLY__ with __ASSEMBLER__
  ARM: tegra: Fix OF node reference leaks in IRQ init
  ARM: lpc32xx: remove a few manually populated OF devices
  ARM: lpc32xx: only run SoC init on LPC32xx hardware
  firmware: imx: scu: manage mailbox channels and global handle
  ARM: sa1100: h3xxx: convert gpio-keys to use software nodes
  ARM: sa1100: collie: convert gpio-keys to use software nodes
  ARM: sa1100: assabet: convert gpio-keys to use software nodes
  gpio: sa1100: register software node for GPIO controller
  ARM: ixp4xx: Relax endianness
  ARM: replace linux/gpio.h inclusions
  soc: imx9: devm_kasprintf error handling
  ARM: mark mv78xx0 support as deprecated
  ARM: mark axxia platform as deprecated
  ARM: mark Cortex-M3/M4/M7 based boards as deprecated
  ARM: mark footbridge as deprecated
  ARM: mark RiscPC as deprecated
  ARM: mark mach-sa1100 as deprecated
  ARM: orion5x: mark all board files as deprecated
  ...

4 files changed, 45 insertions, 2 deletions

diff --git a/drivers/firmware/imx/imx-scu.c b/drivers/firmware/imx/imx-scu.c
index 67b267a7408a..203aac421252 100644
--- a/drivers/firmware/imx/imx-scu.c
+++ b/drivers/firmware/imx/imx-scu.c
@@ -82,6 +82,17 @@ static int imx_sc_linux_errmap[IMX_SC_ERR_LAST] = {
 
 static struct imx_sc_ipc *imx_sc_ipc_handle;
 
+static void imx_scu_free_mbox_chan(void *data)
+{
+	mbox_free_channel(data);
+}
+
+static void imx_scu_clear_handle(void *data)
+{
+	if (imx_sc_ipc_handle == data)
+		imx_sc_ipc_handle = NULL;
+}
+
 static inline int imx_sc_to_linux_errno(int errno)
 {
 	if (errno >= IMX_SC_ERR_NONE && errno < IMX_SC_ERR_LAST)
@@ -321,6 +332,11 @@ static int imx_scu_probe(struct platform_device *pdev)
 		dev_dbg(dev, "request mbox chan %s\n", chan_name);
 		/* chan_name is not used anymore by framework */
 		kfree(chan_name);
+
+		ret = devm_add_action_or_reset(dev, imx_scu_free_mbox_chan,
+					       sc_chan->ch);
+		if (ret)
+			return ret;
 	}
 
 	sc_ipc->dev = dev;
@@ -330,6 +346,9 @@ static int imx_scu_probe(struct platform_device *pdev)
 	init_completion(&sc_ipc->done);
 
 	imx_sc_ipc_handle = sc_ipc;
+	ret = devm_add_action_or_reset(dev, imx_scu_clear_handle, sc_ipc);
+	if (ret)
+		return ret;
 
 	ret = imx_scu_soc_init(dev);
 	if (ret)
@@ -342,7 +361,11 @@ static int imx_scu_probe(struct platform_device *pdev)
 
 	dev_info(dev, "NXP i.MX SCU Initialized\n");
 
-	return devm_of_platform_populate(dev);
+	ret = devm_of_platform_populate(dev);
+	if (ret)
+		of_platform_depopulate(dev);
+
+	return ret;
 }
 
 static const struct of_device_id imx_scu_match[] = {
diff --git a/drivers/firmware/imx/sm-misc.c b/drivers/firmware/imx/sm-misc.c
index ac9af824c2d4..fb8d7bdb5b08 100644
--- a/drivers/firmware/imx/sm-misc.c
+++ b/drivers/firmware/imx/sm-misc.c
@@ -79,6 +79,9 @@ static int syslog_show(struct seq_file *file, void *priv)
 	u16 size = SZ_4K / 4;
 	int ret;
 
+	if (!syslog)
+		return -ENOMEM;
+
 	if (!ph)
 		return -ENODEV;
 
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c
index 1938ffa2f4f3..ffa73dd3b982 100644
--- a/drivers/gpio/gpio-sa1100.c
+++ b/drivers/gpio/gpio-sa1100.c
@@ -13,6 +13,11 @@
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 #include <mach/generic.h>
+#include <linux/property.h>
+
+const struct software_node sa1100_gpiochip_node = {
+	.name = "sa1100-gpio",
+};
 
 struct sa1100_gpio_chip {
 	struct gpio_chip chip;
@@ -317,6 +322,7 @@ static const int sa1100_gpio_irqs[] __initconst = {
 void __init sa1100_init_gpio(void)
 {
 	struct sa1100_gpio_chip *sgc = &sa1100_gpio_chip;
+	struct gpio_chip *gc = &sgc->chip;
 	int i;
 
 	/* clear all GPIO edge detects */
@@ -324,7 +330,9 @@ void __init sa1100_init_gpio(void)
 	writel_relaxed(0, sgc->membase + R_GRER);
 	writel_relaxed(-1, sgc->membase + R_GEDR);
 
-	gpiochip_add_data(&sa1100_gpio_chip.chip, NULL);
+	software_node_register(&sa1100_gpiochip_node);
+	gc->fwnode = software_node_fwnode(&sa1100_gpiochip_node);
+	gpiochip_add_data(gc, NULL);
 
 	sa1100_gpio_irqdomain = irq_domain_create_simple(NULL,
 			28, IRQ_GPIO0,
diff --git a/drivers/soc/imx/soc-imx9.c b/drivers/soc/imx/soc-imx9.c
index 58eef7d4f908..23b54b7d7502 100644
--- a/drivers/soc/imx/soc-imx9.c
+++ b/drivers/soc/imx/soc-imx9.c
@@ -35,6 +35,8 @@ static int imx9_soc_probe(struct platform_device *pdev)
 		return dev_err_probe(dev, err, "%s: missing model property\n", __func__);
 
 	attr->family = devm_kasprintf(dev, GFP_KERNEL, "Freescale i.MX");
+	if (!attr->family)
+		return -ENOMEM;
 
 	/*
 	 * Retrieve the soc id, rev & uid info:
@@ -52,11 +54,18 @@ static int imx9_soc_probe(struct platform_device *pdev)
 	rev_minor = SOC_REV_MINOR(res.a1);
 
 	attr->soc_id = devm_kasprintf(dev, GFP_KERNEL, "i.MX%2x", soc_id);
+	if (!attr->soc_id)
+		return -ENOMEM;
+
 	attr->revision = devm_kasprintf(dev, GFP_KERNEL, "%d.%d", rev_major, rev_minor);
+	if (!attr->revision)
+		return -ENOMEM;
 
 	uid127_64 = res.a2;
 	uid63_0 = res.a3;
 	attr->serial_number = devm_kasprintf(dev, GFP_KERNEL, "%016llx%016llx", uid127_64, uid63_0);
+	if (!attr->serial_number)
+		return -ENOMEM;
 
 	sdev = soc_device_register(attr);
 	if (IS_ERR(sdev))