This patch adds to enable High Speed Inter Chip on Exynos4X12. Both channels
are controlled by usbphy driver based on the patch series of usbphy driver
submitted by Tomasz Figa.

[1] https://patchwork.kernel.org/patch/2576121
[2] https://patchwork.kernel.org/patch/2576131
[3] https://patchwork.kernel.org/patch/2576141
[4] https://patchwork.kernel.org/patch/2576151
[5] https://patchwork.kernel.org/patch/2576161
[6] https://patchwork.kernel.org/patch/2576171Signed-off-by: NDongjin Kim <tobetter@gmail.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch adds driver data for Exynos 4x12 USB 2.0 PHY.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

To remove unnecessary if statements, this patch introduces phy_enable
and phy_disable callbacks in driver data structure that implement
SoC-specific PHY initialization and deinitialization.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch extends driver data structure with set_isolation callback,
which allows to remove the need for checking for SoC type in a switch
statement.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

This patch cleans up handling of reference clock rate in Samsung USB PHY
drivers. It is mostly a cosmetic change but improves error handling in
case of failing to get reference clock or invalid clock rate.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Adding PHY driver support for USB 3.0 controller for Samsung's
SoCs.
Signed-off-by: NVivek Gautam <gautam.vivek@samsung.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

Moving register and structure definitions to header file,
and keeping the generic functions to be used across
multiple PHYs in common phy helper driver under SAMSUNG_USBPHY,
and moving USB 2.0 PHY driver under SAMSUNG_USB2PHY.

Also allowing samsung PHY drivers be built as modules.
Signed-off-by: NVivek Gautam <gautam.vivek@samsung.com>
Acked-by: NKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>