This patch removes DRM_EXYNOS_GEM_MMAP ictrl feature specific
to Exynos drm and instead uses drm generic mmap.

We had used the interface specific to Exynos drm to do mmap directly,
not to use demand paging which maps each page with physical memory
at page fault handler. We don't need the specific mmap interface
because the drm generic mmap which uses vm offset manager stuff can
also do mmap directly.

This patch makes a userspace region to be mapped with whole physical
memory region allocated by userspace request when mmap system call is
requested.

Changelog v2:
- do not set VM_IO, VM_DONTEXPEND and VM_DONTDUMP. These flags were already
  set by drm_gem_mmap
- do not include <linux/anon_inodes.h>, which isn't needed anymore.
Signed-off-by: NInki Dae <inki.dae@samsung.com>

This interface and relevant codes aren't used anymore.
Signed-off-by: NInki Dae <inki.dae@samsung.com>

From fimd driver and vidi driver, dev->irq_enabled and
dev->vblank_disable_allowed are set and also mixer needs them even if
missed. It's duplicated so set them when loads drm driver.
Signed-off-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

During component removal driver should unregister connector.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

During component removal driver should unregister connector.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

During component removal it should unregister connector
and optionally detach the panel.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

During component unbind connector should be unregistered.
Also DSI host should be unregistered after KMS cleanup.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

In case drm_framebuffer_init fails exynos_fb should be freed
before returning an error.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

exynos_gem_obj is used by exynos_drm_fbdev_destroy so it cannot be destroyed
before calling the latter. exynos_gem_obj will be destroyed anyway by
exynos_drm_fbdev_destroy->...->exynos_drm_fb_destroy.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Since components have their own cleanup routines calling
drm_mode_config_cleanup before component_unbind_all causes errors
due to double free of KMS objects. The patch fixes it by changing
de-initialization order. Now it is exactly opposite to init order.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

On ipp subsystem removal list of ipp drivers is traversed
and their members are deleted. To do it properly safe version
of list_for_each* should be used.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Update Exynos's DRM driver to use component match support rater than
add_components.

Changelog v2:
- release devices and drivers if failed.
- change compare_of to compare_dev.
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Tested-by: NAndrzej Hajda <a.hajda@samsung.com>

Process should not have access to ipp nodes created by another
process. The patch adds necessary checks.
It also simplifies lookup for command node.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Since file pointer is preserved in c_node passing it
as argument in node functions is redundant.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

FIMC in default mode of operation uses only one input buffer,
but the driver used also second buffer, as a result only the
first frame was processed correctly. The patch fixes it.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

The patch removes redundant checks, redundant HW reads
and simplifies code.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

The patch removes redundant H/W activation.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Overflow bits shall be cleared by H/W.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Events were removed only during stop command, as a result
there were memory leaks if program prematurely exited.
This patch fixes it.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Memory shouldn't be freed when hardware is still running.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Type casting should be avoided if possible. In case of
work_struct it can be simply replaced by reference to member field.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

The nodes should be removed before removing command node.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

The patch introduces ipp_clean_mem_nodes function which replaces
redundant code. Additionally memory node function definitions
are moved up to increase its visibility.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

In case of allocation errors some already allocated buffers
were not freed. The patch fixes it.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Since command node have file pointer dev field became useless.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

On file close driver should remove only command nodes created
via this file.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Command node should contain file reference to distinguish commands
created by different processes.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

All pending works should be canceled prior to its removal.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

PM callbacks in ipp core do nothing, so the patch removes it.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

To correctly disable hardware window during driver init, both enable bits
(WINCONx_ENWIN in WINCON and SHADOWCON_CHx_ENABLE in SHADOWCON) must be
cleared, otherwise hardware fails to re-enable such window later.

While touching this function, also temporarily disable ctx->suspended flag
to let fimd_wait_for_vblank function really to do its job.
Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Commit [0] stopped setting fix.smem_start and fix.smem_len when creating
the fbdev.

[0] 2f1eab8d
  drm/exynos/fbdev: don't set fix.smem/mmio_{start,len}

However, smem_len is used by some userland applications to calculate the
size for mmap.  In particular, it is used by xf86-video-fbdev:

http://cgit.freedesktop.org/xorg/xserver/tree/hw/xfree86/fbdevhw/fbdevhw.c?id=xorg-server-1.15.99.903#n571

So, let's restore setting the smem_len to unbreak things for these users.

Note: we are still leaving smem_start set to 0.
Reported-by: NSiarhei Siamashka <siarhei.siamashka@gmail.com>
Reported-by: NGunther Noack <me@guenthernoack.de>
Signed-off-by: NDaniel Kurtz <djkurtz@chromium.org>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Signed-off-by: NInki Dae <inki.dae@samsung.com>
Reviewed-by: NAndrzej Hajda <a.hajda@samsung.com>

This patch adds mipi_phy device node to reset, disable and enable
DSIM and CSIS PHY.
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Reviewed-by: NAndrzej Hajda <a.hajda@samsung.com>

Signed-off-by: NInki Dae <inki.dae@samsung.com>
Reviewed-by: NAndrzej Hajda <a.hajda@samsung.com>

Signed-off-by: NInki Dae <inki.dae@samsung.com>
Reviewed-by: NAndrzej Hajda <a.hajda@samsung.com>

This patch adds Exynos3250/3472 SoCs support.
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Reviewed-by: NAndrzej Hajda <a.hajda@samsung.com>

This patch adds non-continuous clock mode support

Clock mode on Clock Lane is continuous clock by default.
So if we want to transmit data in non-continuous clock mode
to reduce power consumption, then host driver should set
DSIM_CLKLANE_STOP bit. In this case, host controller turns off
HS clock between high speed transmissions.

For this, this patch adds a new bit, DSIM_CLKLANE_STOP, and makes
the host driver sets this bit only in case that dsi->mode_flags has
MIPI_DSI_CLOCK_NON_CONTINUOUS flag.
Signed-off-by: NInki Dae <inki.dae@samsung.com>
Reviewed-by: NAndrzej Hajda <a.hajda@samsung.com>

This patch adds a new flag, MIPI_DSI-MODE_LPM, to transmit data
in low power. With this flag, msg.flags has MIPI_DSI_MSG_USE_LPM
so that host driver of each SoC can clear or set relevant register
bit for low power transmission.

All host drivers shall support continuous clock behavior on the
Clock Lane, and optionally may support non-continuous clock behavior.
Both of them can transmit data in high speed of low power.

With each clock behavior, non-continuous or continuous clock mode,
host controller will transmit data in high speed by default so if
peripheral wants to receive data in low power, the peripheral driver
should set MIPI_DSI_MODE_LPM flag.
Signed-off-by: NInki Dae <inki.dae@samsung.com>

The type of this function is unsigned long, and it is expected
to return proper fout value or zero if something is wrong.
So this patch fixes wrong return value for error cases.
Signed-off-by: NYoungJun Cho <yj44.cho@samsung.com>
Acked-by: NInki Dae <inki.dae@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Acked-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

Commit "drm/rcar-du: Use struct videomode in platform data" touches board code
in arch/arm/mach-shmobile. There is, to the best of my knowledge, no risk of
conflict for v3.18. Simon, are you fine with getting those changes merged
through Dave's tree (and could you confirm that no conflict should occur) ?

Simon acked the merge:
Acked-by: NSimon Horman <horms+renesas@verge.net.au>

* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev:
  drm/rcar-du: Add OF support
  drm/rcar-du: Use struct videomode in platform data
  video: Add DT bindings for the R-Car Display Unit
  video: Add THC63LVDM83D DT bindings documentation
  video: Add ADV7123 DT bindings documentation
  video: Add DT binding documentation for VGA connector
  devicetree: Add vendor prefix "thine" to vendor-prefixes.txt
  devicetree: Add vendor prefix "mitsubishi" to vendor-prefixes.txt
  drm/shmob: Update copyright notice
  drm/rcar-du: Update copyright notice