[PATCH RESEND v6 0/3] ASoC: Add iPAQ RX1950 support

[Vasily Khoruzhick <anarsoul@gmail.com>]

These three patches are necessary to add sound support for
iPAQ RX1950 PDA, appropriate mach-rx1950.c patch is missing,
as it depends on battery and LEDs patches which are still not
merged nor reviewed.

First patch improves situation with power consumption for uda1380
and also fixes suspend/resume.

Second patch just adds glue driver.

Third patch fixes s3c_device_iis name and exports s3c_device_pcm
for all s3c24xx-based devices.

v2: - make mixer regs dirty after power-down, not after power-up
v3: - improve glue driver init code (handle errors)
v4: - adapt patches for multi-component
v5: - handle return values in rx1950_uda1380 init code;
- use gpio_set_value instead of gpio_direction_output in
spk_power;
- uda1380: improve code alignment in set_bias
v6: - use gpio_is_valid to check gpio validity