Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (27 commits)
  sh: Fix up L2 cache probe.
  sh: Fix up SH-4A part probe.
  sh: Add support for SH7723 CPU subtype.
  sh: Fix up SH7763 build.
  sh: Add migor_ts support to MigoR
  sh: Add rs5c732b RTC support to MigoR
  sh: Add I2C support to MigoR
  sh: Add I2C platform data to sh7722
  sh: MigoR NAND flash support using gen_flash
  sh: MigoR NOR flash support using physmap-flash
  sh: Fix up mach-types formatting from merge damage.
  sh: r7780rp: Hook up the I2C and SMBus platform devices.
  sh: Use phyical addresses for MigoR smc91x resources
  sh: Use physical addresses for sh7722 USBF resources
  sh: Add MigoR header file
  Fix sh_keysc double free
  sh: Fix up __access_ok() check for nommu.
  sh: Allow optimized clear/copy page routines to be used on SH-2.
  sh: Hook up the rest of the SH7770 serial ports.
  sh: Add support for Solution Engine SH7721 board
  ...

1 files changed, 280 insertions, 0 deletions

diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
new file mode 100644
index 000000000000..8486abc457ed
--- /dev/null
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -0,0 +1,280 @@
+/*
+ * SuperH KEYSC Keypad Driver
+ *
+ * Copyright (C) 2008 Magnus Damm
+ *
+ * Based on gpio_keys.c, Copyright 2005 Phil Blundell
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <asm/sh_keysc.h>
+
+#define KYCR1_OFFS   0x00
+#define KYCR2_OFFS   0x04
+#define KYINDR_OFFS  0x08
+#define KYOUTDR_OFFS 0x0c
+
+#define KYCR2_IRQ_LEVEL    0x10
+#define KYCR2_IRQ_DISABLED 0x00
+
+static const struct {
+	unsigned char kymd, keyout, keyin;
+} sh_keysc_mode[] = {
+	[SH_KEYSC_MODE_1] = { 0, 6, 5 },
+	[SH_KEYSC_MODE_2] = { 1, 5, 6 },
+	[SH_KEYSC_MODE_3] = { 2, 4, 7 },
+};
+
+struct sh_keysc_priv {
+	void __iomem *iomem_base;
+	unsigned long last_keys;
+	struct input_dev *input;
+	struct sh_keysc_info pdata;
+};
+
+static irqreturn_t sh_keysc_isr(int irq, void *dev_id)
+{
+	struct platform_device *pdev = dev_id;
+	struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+	struct sh_keysc_info *pdata = &priv->pdata;
+	unsigned long keys, keys1, keys0, mask;
+	unsigned char keyin_set, tmp;
+	int i, k;
+
+	dev_dbg(&pdev->dev, "isr!\n");
+
+	keys1 = ~0;
+	keys0 = 0;
+
+	do {
+		keys = 0;
+		keyin_set = 0;
+
+		iowrite16(KYCR2_IRQ_DISABLED, priv->iomem_base + KYCR2_OFFS);
+
+		for (i = 0; i < sh_keysc_mode[pdata->mode].keyout; i++) {
+			iowrite16(0xfff ^ (3 << (i * 2)),
+				  priv->iomem_base + KYOUTDR_OFFS);
+			udelay(pdata->delay);
+			tmp = ioread16(priv->iomem_base + KYINDR_OFFS);
+			keys |= tmp << (sh_keysc_mode[pdata->mode].keyin * i);
+			tmp ^= (1 << sh_keysc_mode[pdata->mode].keyin) - 1;
+			keyin_set |= tmp;
+		}
+
+		iowrite16(0, priv->iomem_base + KYOUTDR_OFFS);
+		iowrite16(KYCR2_IRQ_LEVEL | (keyin_set << 8),
+			  priv->iomem_base + KYCR2_OFFS);
+
+		keys ^= ~0;
+		keys &= (1 << (sh_keysc_mode[pdata->mode].keyin *
+			       sh_keysc_mode[pdata->mode].keyout)) - 1;
+		keys1 &= keys;
+		keys0 |= keys;
+
+		dev_dbg(&pdev->dev, "keys 0x%08lx\n", keys);
+
+	} while (ioread16(priv->iomem_base + KYCR2_OFFS) & 0x01);
+
+	dev_dbg(&pdev->dev, "last_keys 0x%08lx keys0 0x%08lx keys1 0x%08lx\n",
+		priv->last_keys, keys0, keys1);
+
+	for (i = 0; i < SH_KEYSC_MAXKEYS; i++) {
+		k = pdata->keycodes[i];
+		if (!k)
+			continue;
+
+		mask = 1 << i;
+
+		if (!((priv->last_keys ^ keys0) & mask))
+			continue;
+
+		if ((keys1 | keys0) & mask) {
+			input_event(priv->input, EV_KEY, k, 1);
+			priv->last_keys |= mask;
+		}
+
+		if (!(keys1 & mask)) {
+			input_event(priv->input, EV_KEY, k, 0);
+			priv->last_keys &= ~mask;
+		}
+
+	}
+	input_sync(priv->input);
+
+	return IRQ_HANDLED;
+}
+
+#define res_size(res) ((res)->end - (res)->start + 1)
+
+static int __devinit sh_keysc_probe(struct platform_device *pdev)
+{
+	struct sh_keysc_priv *priv;
+	struct sh_keysc_info *pdata;
+	struct resource *res;
+	struct input_dev *input;
+	int i, k;
+	int irq, error;
+
+	if (!pdev->dev.platform_data) {
+		dev_err(&pdev->dev, "no platform data defined\n");
+		error = -EINVAL;
+		goto err0;
+	}
+
+	error = -ENXIO;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "failed to get I/O memory\n");
+		goto err0;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "failed to get irq\n");
+		goto err0;
+	}
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (priv == NULL) {
+		dev_err(&pdev->dev, "failed to allocate driver data\n");
+		error = -ENOMEM;
+		goto err0;
+	}
+
+	platform_set_drvdata(pdev, priv);
+	memcpy(&priv->pdata, pdev->dev.platform_data, sizeof(priv->pdata));
+	pdata = &priv->pdata;
+
+	res = request_mem_region(res->start, res_size(res), pdev->name);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "failed to request I/O memory\n");
+		error = -EBUSY;
+		goto err1;
+	}
+
+	priv->iomem_base = ioremap_nocache(res->start, res_size(res));
+	if (priv->iomem_base == NULL) {
+		dev_err(&pdev->dev, "failed to remap I/O memory\n");
+		error = -ENXIO;
+		goto err2;
+	}
+
+	priv->input = input_allocate_device();
+	if (!priv->input) {
+		dev_err(&pdev->dev, "failed to allocate input device\n");
+		error = -ENOMEM;
+		goto err3;
+	}
+
+	input = priv->input;
+	input->evbit[0] = BIT_MASK(EV_KEY);
+
+	input->name = pdev->name;
+	input->phys = "sh-keysc-keys/input0";
+	input->dev.parent = &pdev->dev;
+
+	input->id.bustype = BUS_HOST;
+	input->id.vendor = 0x0001;
+	input->id.product = 0x0001;
+	input->id.version = 0x0100;
+
+	error = request_irq(irq, sh_keysc_isr, 0, pdev->name, pdev);
+	if (error) {
+		dev_err(&pdev->dev, "failed to request IRQ\n");
+		goto err4;
+	}
+
+	for (i = 0; i < SH_KEYSC_MAXKEYS; i++) {
+		k = pdata->keycodes[i];
+		if (k)
+			input_set_capability(input, EV_KEY, k);
+	}
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(&pdev->dev, "failed to register input device\n");
+		goto err5;
+	}
+
+	iowrite16((sh_keysc_mode[pdata->mode].kymd << 8) |
+		  pdata->scan_timing, priv->iomem_base + KYCR1_OFFS);
+	iowrite16(0, priv->iomem_base + KYOUTDR_OFFS);
+	iowrite16(KYCR2_IRQ_LEVEL, priv->iomem_base + KYCR2_OFFS);
+	return 0;
+ err5:
+	free_irq(irq, pdev);
+ err4:
+	input_free_device(input);
+ err3:
+	iounmap(priv->iomem_base);
+ err2:
+	release_mem_region(res->start, res_size(res));
+ err1:
+	platform_set_drvdata(pdev, NULL);
+	kfree(priv);
+ err0:
+	return error;
+}
+
+static int __devexit sh_keysc_remove(struct platform_device *pdev)
+{
+	struct sh_keysc_priv *priv = platform_get_drvdata(pdev);
+	struct resource *res;
+
+	iowrite16(KYCR2_IRQ_DISABLED, priv->iomem_base + KYCR2_OFFS);
+
+	input_unregister_device(priv->input);
+	free_irq(platform_get_irq(pdev, 0), pdev);
+	iounmap(priv->iomem_base);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	release_mem_region(res->start, res_size(res));
+
+	platform_set_drvdata(pdev, NULL);
+	kfree(priv);
+	return 0;
+}
+
+
+#define sh_keysc_suspend NULL
+#define sh_keysc_resume NULL
+
+struct platform_driver sh_keysc_device_driver = {
+	.probe		= sh_keysc_probe,
+	.remove		= __devexit_p(sh_keysc_remove),
+	.suspend	= sh_keysc_suspend,
+	.resume		= sh_keysc_resume,
+	.driver		= {
+		.name	= "sh_keysc",
+	}
+};
+
+static int __init sh_keysc_init(void)
+{
+	return platform_driver_register(&sh_keysc_device_driver);
+}
+
+static void __exit sh_keysc_exit(void)
+{
+	platform_driver_unregister(&sh_keysc_device_driver);
+}
+
+module_init(sh_keysc_init);
+module_exit(sh_keysc_exit);
+
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("SuperH KEYSC Keypad Driver");
+MODULE_LICENSE("GPL");