clk: samsung: s5pv210: Add support for clock output

This patch implements handling of CLKOUT-related muxes and dividers to
allow getting and setting configuration of CLKOUT pin.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
ARM: dts: s5p6442: Fix compatible string of i2s1

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
ARM: dts: s5p6442: Add #sound-dai-cells properties to i2s nodes

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
ARM: dts: s5p6442-apollo: Add more data related to audio hardware

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
ARM: dts: s5p6442-apollo: Enable ADC node

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
ARM: dts: s5p6442: Add missing samsung,idma-addr property to i2s0 node

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
video/backlight: Add driver for Samsung S6D04D1 LCD controller

This patch adds driver for Sasung S6D04D1 LCD controller chip that can
be used to drive TFT LCD panels.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
ARM: dts: s5p6442-apollo: Add node for LCD controller

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>