ARM: SoC: platform support for v4.2

Our SoC branch usually contains expanded support for new SoCs and
 other core platform code. Some highlights from this round:
 
 - sunxi: SMP support for A23 SoC
 - socpga: big-endian support
 - pxa: conversion to common clock framework
 - bcm: SMP support for BCM63138
 - imx: support new I.MX7D SoC
 - zte: basic support for ZX296702 SoC
 
  Conflicts:
 	arch/arm/mach-socfpga/core.h
 
 Trivial remove/remove conflict with our cleanup branch.
 Resolution: remove both sides
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Merge tag 'armsoc-soc' into test-merge

ARM: SoC: platform support for v4.2

Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:

- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC

 Conflicts:
	arch/arm/mach-socfpga/core.h

Trivial remove/remove conflict with our cleanup branch.
Resolution: remove both sides

# gpg: Signature made Wed Jun 24 21:32:12 2015 PDT using RSA key ID D3FBC665
# gpg: Good signature from "Kevin Hilman <[email protected]>"
# gpg:                 aka "Kevin Hilman <[email protected]>"
# gpg:                 aka "Kevin Hilman <[email protected]>"

# Conflicts:
#	arch/arm/mach-socfpga/core.h

drivers/soc/tegra/fuse/fuse-tegra20.c

@@ -59,6 +59,7 @@ static u32 tegra20_fuse_readl(const unsigned int offset)
 	int ret;
 	u32 val = 0;
 	struct dma_async_tx_descriptor *dma_desc;
+	unsigned long time_left;
 
 	mutex_lock(&apb_dma_lock);
 
@@ -82,9 +83,10 @@ static u32 tegra20_fuse_readl(const unsigned int offset)
 
 	dmaengine_submit(dma_desc);
 	dma_async_issue_pending(apb_dma_chan);
-	ret = wait_for_completion_timeout(&apb_dma_wait, msecs_to_jiffies(50));
+	time_left = wait_for_completion_timeout(&apb_dma_wait,
+						msecs_to_jiffies(50));
 
-	if (WARN(ret == 0, "apb read dma timed out"))
+	if (WARN(time_left == 0, "apb read dma timed out"))
 		dmaengine_terminate_all(apb_dma_chan);
 	else
 		val = *apb_buffer;

drivers/soc/tegra/pmc.c

@@ -377,13 +377,10 @@ int tegra_pmc_cpu_remove_clamping(int cpuid)
 }
 #endif /* CONFIG_SMP */
 
-/**
- * tegra_pmc_restart() - reboot the system
- * @mode: which mode to reboot in
- * @cmd: reboot command
- */
-void tegra_pmc_restart(enum reboot_mode mode, const char *cmd)
+static int tegra_pmc_restart_notify(struct notifier_block *this,
+				    unsigned long action, void *data)
 {
+	const char *cmd = data;
 	u32 value;
 
 	value = tegra_pmc_readl(PMC_SCRATCH0);
@@ -405,8 +402,15 @@ void tegra_pmc_restart(enum reboot_mode mode, const char *cmd)
 	value = tegra_pmc_readl(0);
 	value |= 0x10;
 	tegra_pmc_writel(value, 0);
+
+	return NOTIFY_DONE;
 }
 
+static struct notifier_block tegra_pmc_restart_handler = {
+	.notifier_call = tegra_pmc_restart_notify,
+	.priority = 128,
+};
+
 static int powergate_show(struct seq_file *s, void *data)
 {
 	unsigned int i;
@@ -837,6 +841,13 @@ static int tegra_pmc_probe(struct platform_device *pdev)
 			return err;
 	}
 
+	err = register_restart_handler(&tegra_pmc_restart_handler);
+	if (err) {
+		dev_err(&pdev->dev, "unable to register restart handler, %d\n",
+			err);
+		return err;
+	}
+
 	return 0;
 }