[ARM] 5096/2: Support Toshiba TC6393XB Mobile I/O Controller.

Add support for Toshiba TC6393XB companion chip. Currently
only GPIO and part of IRQ features of the device are supported.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/mfd/Kconfig

@@ -38,6 +38,12 @@ config HTC_PASIC3
 	  HTC Magician devices, respectively. Actual functionality is
 	  handled by the leds-pasic3 and ds1wm drivers.
 
+config MFD_TC6393XB
+	bool "Support Toshiba TC6393XB"
+	depends on HAVE_GPIO_LIB
+	help
+	  Support for Toshiba Mobile IO Controller TC6393XB
+
 endmenu
 
 menu "Multimedia Capabilities Port drivers"

drivers/mfd/Makefile

@@ -8,6 +8,8 @@ obj-$(CONFIG_MFD_ASIC3)		+= asic3.o
 obj-$(CONFIG_HTC_EGPIO)		+= htc-egpio.o
 obj-$(CONFIG_HTC_PASIC3)	+= htc-pasic3.o
 
+obj-$(CONFIG_MFD_TC6393XB)	+= tc6393xb.o
+
 obj-$(CONFIG_MCP)		+= mcp-core.o
 obj-$(CONFIG_MCP_SA11X0)	+= mcp-sa11x0.o
 obj-$(CONFIG_MCP_UCB1200)	+= ucb1x00-core.o

include/linux/mfd/tc6393xb.h

+/*
+ * Toshiba TC6393XB SoC support
+ *
+ * Copyright(c) 2005-2006 Chris Humbert
+ * Copyright(c) 2005 Dirk Opfer
+ * Copyright(c) 2005 Ian Molton <spyro@f2s.com>
+ * Copyright(c) 2007 Dmitry Baryshkov
+ *
+ * Based on code written by Sharp/Lineo for 2.4 kernels
+ * Based on locomo.c
+ *
+ * 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.
+ */
+
+#ifndef TC6393XB_H
+#define TC6393XB_H
+
+/* Also one should provide the CK3P6MI clock */
+struct tc6393xb_platform_data {
+	u16	scr_pll2cr;	/* PLL2 Control */
+	u16	scr_gper;	/* GP Enable */
+	u32	scr_gpo_doecr;	/* GPO Data OE Control */
+	u32	scr_gpo_dsr;	/* GPO Data Set */
+
+	int	(*enable)(struct platform_device *dev);
+	int	(*disable)(struct platform_device *dev);
+	int	(*suspend)(struct platform_device *dev);
+	int	(*resume)(struct platform_device *dev);
+
+	int	irq_base;	/* a base for cascaded irq */
+	int	gpio_base;
+};
+
+/*
+ * Relative to irq_base
+ */
+#define	IRQ_TC6393_NAND		0
+#define	IRQ_TC6393_MMC		1
+#define	IRQ_TC6393_OHCI		2
+#define	IRQ_TC6393_SERIAL	3
+#define	IRQ_TC6393_FB		4
+
+#define	TC6393XB_NR_IRQS	8
+
+#endif