Migrate hp6xx to evt2irq backed hwirq lookups.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This is a port of the sound/oss/sh_dac_audio.c driver.
The driver uses an on-chip 8-bit D/A converter, which has a speaker connected
to one of its channels, found in several ancient HP machines.
For interrupts it uses a high-resolution timer (hrtimer).
Tested on SH7709 based hp6xx (HP Jornada 680/690 and HP Palmtop 620lx/660lx).

Also, since OSS Emulation works, the old OSS sound/oss/sh_dac_audio.c driver
would be obsolete soon, and it could be removed.
Signed-off-by: NRafael Ignacio Zurita <rizurita@yahoo.com>
Acked-by: NPaul Mundt <lethal@linux-sh.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This follows the sparc changes a439fe51.

Most of the moving about was done with Sam's directions at:

http://marc.info/?l=linux-sh&m=121724823706062&w=2

with subsequent hacking and fixups entirely my fault.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

This patch removes defunct. led support functions from hp6xx.h since they are now
added in a proper driver (see commit below). Also adds tabs instead of spaces before comments.

*commit d39a7a63Signed-off-by: NKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

The IRQ3 define was removed when asm-sh/irq.h was cleaned up,
this updates the hp6xx header to use the IRQ number directly.
Signed-off-by: NKristoffer Ericson <kristoffer_e1@hotmail.com>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

Some of these were dropped in the header directory rework, add
the few missing ones back in.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>