HDQ/1-wire driver for OMAP2430/3430

This patch adds OMAP2430/3430 HDQ/1-Wire driver support.

Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/w1/masters/Kconfig

@@ -42,5 +42,13 @@ config W1_MASTER_DS1WM
 	  in HP iPAQ devices like h5xxx, h2200, and ASIC3-based like
 	  hx4700.
 
+config HDQ_MASTER_OMAP
+	tristate "OMAP HDQ driver"
+	depends on ARCH_OMAP2430 || ARCH_OMAP34XX
+	help
+	  Say Y here if you want support for the 1-wire or HDQ Interface
+	  on an OMAP processor.
+
+
 endmenu
 

drivers/w1/masters/Makefile

@@ -6,3 +6,4 @@ obj-$(CONFIG_W1_MASTER_MATROX)		+= matrox_w1.o
 obj-$(CONFIG_W1_MASTER_DS2490)		+= ds2490.o
 obj-$(CONFIG_W1_MASTER_DS2482)		+= ds2482.o
 obj-$(CONFIG_W1_MASTER_DS1WM)		+= ds1wm.o
+obj-$(CONFIG_HDQ_MASTER_OMAP)		+= omap_hdq.o

include/asm-arm/arch-omap/hdq.h

+/*
+ * include/asm-arm/arch-omap/hdq.h
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#ifndef __ASM_OMAP2_HDQ_H__
+#define __ASM_OMAP2_HDQ_H__
+
+/* Note the following APIs have to be called in a process context */
+int omap_hdq_get(void); /* request the HDQ block */
+int omap_hdq_put(void); /* release the HDQ block */
+int omap_hdq_break(void); /* reset the slave by sending it a break pulse */
+
+int omap_hdq_reset(void); /* reset the HDQ block */
+
+#endif