The new structure stores ICB parameters for ICBs.

Instead of modifying the struct sh_mobile_meram_cfg instances passed by
callers, store the ICB parameters internally and make the public API
take const pointers to sh_mobile_meram_cfg.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Make sure current_reg == 0/1 always mean register set A/B through all
the code.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Many variables, such as loop counters, sizes and offsets, should be
unsigned integers. Make them so.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The structure describe ICB configuration, no ICB objects themselves.
Rename it to sh_mobile_meram_icb_cfg in preparation for the addition of
an ICB structure.

All the structure fields are unsigned integers, make them so.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Make sure the registers and MERAM spaces are reserved before using them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The MERAM resource currently combines both the registers space and the
MERAM space. Only the register space needs to be ioremapped, split the
resource to make that possible.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The sh_mobile_wait_for_vsync() function isn't related to the fbdev API,
make it generic by passing a channel pointer instead of an fb_info
pointer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Store the frame buffer configuration (colorspace, visible/virtual
horizontal and vertical resolutions and line pitch) in the
sh_mobile_lcdc_chan structure, and use it instead of accessing fb_info.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The dma_map_sg() and dma_unmap_sg() functions need a pointer to the
physical device.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Store the active format in the channel structure, and use it instead of
parsing info->var all over the place when the format is needed.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The function returns a pointer to a structure describing a format based
on its fourcc. Use the function where applicable instead of hardcoded
switch-case statements.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Group fields by purpose, and make the separation between core fields and
FB-related fields clear.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The struct sh_mobile_lcdc_chan_cfg platform data contains a list of
video modes. Name the lcd_cfg and num_cfg fields to reflect that they
describe video modes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Embed struct fb_videomode instead of struct fb_var_screeninfo in struct
sh_mobile_lcdc_chan to store the display mode.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The LCDC fb_info structure is only used to retrieve the default video
mode in case none of the modes advertised by EDID information is
acceptable. Pass a pointer to the default mode through the
sh_mobile_lcdc_entity structure instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The struct sh_hdmi mode field is only used after being assigned by the
EDID read code. There is thus no need to initialize it from the LCDC
display var in the display on handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Pass pointers to struct fb_videomode and struct fb_monspecs instead of
struct fb_var_screeninfo to the notify callback.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Instead of accessing the LCDC channel and fb_info structures directly,
use the LCDC notification callback to inform the LCDC driver about
display-related events.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The callback implements 3 notification events:

- SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT notifies the LCDC that the
  display has been connected
- SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT notifies the LCDC that the
  display has been disconnected
- SH_MOBILE_LCDC_EVENT_DISPLAY_MODE notifies that LCDC that a display
  mode has been detected
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Return true if the display is connected and false otherwise. Set the fb
info state to FBINFO_STATE_SUSPENDED in the sh_mobile_lcdc driver when
the display is not connected.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The parameter is unused, remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The fb_info parameter passed to the display_on operation will be
removed, don't use it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The field will be used by the transmitter drivers to access
sh_mobile_lcdc_chan fields such as fb_info.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Update board code accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Update board code accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The field is unused, remove it. Update board code accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The field is unused, remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The field is unused, remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The field is unused and will be removed. Don't initialize it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The display_on/off operations are now accessed through the
sh_mobile_lcdc_entity operations.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The display_on/off operations are now accessed through the
sh_mobile_lcdc_entity operations.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Make sure the transmitter devices get registered before the associated
LCDC devices.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Pass a pointer to the transmitter device through platform data, retrieve
the corresponding sh_mobile_lcdc_entity structure in the probe method
and call the transmitter display_on/off methods directly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The sh_mobile_lcdc_entity structure will be used to abstract operations
performed by transceivers (such as MIPI/DSI and HDMI).
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The field is used to print debug messages only. Remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Instead of relying on info->par being a pointer to an LCDC channel, cast
the notifier block pointer to an sh_hdmi pointer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>