Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (226 commits)
  ARM: 6323/1: cam60: don't use __init for cam60_spi_{flash_platform_data,partitions}
  ARM: 6324/1: cam60: move cam60_spi_devices to .init.data
  ARM: 6322/1: imx/pca100: Fix name of spi platform data
  ARM: 6321/1: fix syntax error in main Kconfig file
  ARM: 6297/1: move U300 timer to dynamic clock lookup
  ARM: 6296/1: clock U300 intcon and timer properly
  ARM: 6295/1: fix U300 apb_pclk split
  ARM: 6306/1: fix inverted MMC card detect in U300
  ARM: 6299/1: errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID
  ARM: 6294/1: etm: do a dummy read from OSSRR during initialization
  ARM: 6292/1: coresight: add ETM management registers
  ARM: 6288/1: ftrace: document mcount formats
  ARM: 6287/1: ftrace: clean up mcount assembly indentation
  ARM: 6286/1: fix Thumb-2 decompressor broken by "Auto calculate ZRELADDR"
  ARM: 6281/1: video/imxfb.c: allow usage without BACKLIGHT_CLASS_DEVICE
  ARM: 6280/1: imx: Fix build failure when including <mach/gpio.h> without <linux/spinlock.h>
  ARM: S5PV210: Fix on missing s3c-sdhci card detection method for hsmmc3
  ARM: S5P: Fix on missing S5P_DEV_FIMC in plat-s5p/Kconfig
  ARM: S5PV210: Override FIMC driver name on Aquila board
  ARM: S5PC100: enable FIMC on SMDKC100
  ...

Fix up conflicts in arch/arm/mach-{s5pc100,s5pv210}/cpu.c due to
different subsystem 'setname' calls, and trivial port types in
include/linux/serial_core.h

1 files changed, 125 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pv310/irq-combiner.c b/arch/arm/mach-s5pv310/irq-combiner.c
new file mode 100644
index 000000000000..0f7052164f23
--- /dev/null
+++ b/arch/arm/mach-s5pv310/irq-combiner.c
@@ -0,0 +1,125 @@
+/* linux/arch/arm/mach-s5pv310/irq-combiner.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * Based on arch/arm/common/gic.c
+ *
+ * IRQ COMBINER support
+ *
+ * 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/io.h>
+
+#include <asm/mach/irq.h>
+
+#define COMBINER_ENABLE_SET	0x0
+#define COMBINER_ENABLE_CLEAR	0x4
+#define COMBINER_INT_STATUS	0xC
+
+static DEFINE_SPINLOCK(irq_controller_lock);
+
+struct combiner_chip_data {
+	unsigned int irq_offset;
+	void __iomem *base;
+};
+
+static struct combiner_chip_data combiner_data[MAX_COMBINER_NR];
+
+static inline void __iomem *combiner_base(unsigned int irq)
+{
+	struct combiner_chip_data *combiner_data = get_irq_chip_data(irq);
+	return combiner_data->base;
+}
+
+static void combiner_mask_irq(unsigned int irq)
+{
+	u32 mask = 1 << (irq % 32);
+
+	__raw_writel(mask, combiner_base(irq) + COMBINER_ENABLE_CLEAR);
+}
+
+static void combiner_unmask_irq(unsigned int irq)
+{
+	u32 mask = 1 << (irq % 32);
+
+	__raw_writel(mask, combiner_base(irq) + COMBINER_ENABLE_SET);
+}
+
+static void combiner_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
+{
+	struct combiner_chip_data *chip_data = get_irq_data(irq);
+	struct irq_chip *chip = get_irq_chip(irq);
+	unsigned int cascade_irq, combiner_irq;
+	unsigned long status;
+
+	/* primary controller ack'ing */
+	chip->ack(irq);
+
+	spin_lock(&irq_controller_lock);
+	status = __raw_readl(chip_data->base + COMBINER_INT_STATUS);
+	spin_unlock(&irq_controller_lock);
+
+	if (status == 0)
+		goto out;
+
+	for (combiner_irq = 0; combiner_irq < 32; combiner_irq++) {
+		if (status & 0x1)
+			break;
+		status >>= 1;
+	}
+
+	cascade_irq = combiner_irq + (chip_data->irq_offset & ~31);
+	if (unlikely(cascade_irq >= NR_IRQS))
+		do_bad_IRQ(cascade_irq, desc);
+	else
+		generic_handle_irq(cascade_irq);
+
+ out:
+	/* primary controller unmasking */
+	chip->unmask(irq);
+}
+
+static struct irq_chip combiner_chip = {
+	.name		= "COMBINER",
+	.mask		= combiner_mask_irq,
+	.unmask		= combiner_unmask_irq,
+};
+
+void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq)
+{
+	if (combiner_nr >= MAX_COMBINER_NR)
+		BUG();
+	if (set_irq_data(irq, &combiner_data[combiner_nr]) != 0)
+		BUG();
+	set_irq_chained_handler(irq, combiner_handle_cascade_irq);
+}
+
+void __init combiner_init(unsigned int combiner_nr, void __iomem *base,
+			  unsigned int irq_start)
+{
+	unsigned int i;
+
+	if (combiner_nr >= MAX_COMBINER_NR)
+		BUG();
+
+	combiner_data[combiner_nr].base = base;
+	combiner_data[combiner_nr].irq_offset = irq_start;
+
+	/* Disable all interrupts */
+
+	__raw_writel(0xffffffff, base + COMBINER_ENABLE_CLEAR);
+
+	/* Setup the Linux IRQ subsystem */
+
+	for (i = irq_start; i < combiner_data[combiner_nr].irq_offset
+				+ MAX_IRQ_IN_COMBINER; i++) {
+		set_irq_chip(i, &combiner_chip);
+		set_irq_chip_data(i, &combiner_data[combiner_nr]);
+		set_irq_handler(i, handle_level_irq);
+		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
+	}
+}