Init all fields in ttm_resource_alloc() when we create a new resource.

v2: use place->mem_type instead of res->mem_type
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430092508.60710-2-christian.koenig@amd.com

Add a separate manager for the system domain and make function tables
mandatory.

v2: debug is still optional
v3: return void during init
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430092508.60710-1-christian.koenig@amd.com

Audit the includes and stop accessing the internal drm_mm_node.

The ttm_resource::start is the same value as the drm_mm_node::start.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210426175824.122557-1-christian.koenig@amd.com

Force-probing a connector can be slow and cause flickering. As this
affects the global KMS state, let's make it so only the DRM master
can force-probe a connector.

Non-master DRM clients won't be able to force-probe a connector
anymore. Instead, KMS will perform a regular read-only connector
query.
Signed-off-by: Simon Ser <contact@emersion.fr>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210402112212.5625-1-contact@emersion.fr

We register the simplekms device with the DRM platform helpers. A
native driver for the graphics hardware will kick-out the simpledrm
driver before taking over the device.

The original generic platform device from the simple-framebuffer boot
code will be unregistered. The native driver will use whatever native
hardware device it received.

v4:
	* convert to drm_aperture_acquire_from_firmware()
v3:
	* use platform_device_unregister() and handle detachment
	  like hot-unplug event (Daniel)
v2:
	* adapt to aperture changes
	* use drm_dev_unplug() and drm_dev_enter/exit()
	* don't split error string
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-10-tzimmermann@suse.de

The simpledrm driver is a DRM driver for simple-framebuffer framebuffers
as provided by the kernel's boot code. This driver enables basic
graphical output on many different graphics devices that are provided
by the platform (e.g., EFI, VESA, embedded framebuffers).

With the kernel's simple-framebuffer infrastructure, the kernel receives
a pre-configured framebuffer from the system (i.e., firmware, boot
loader). It creates a platform device to which simpledrm attaches.
The system's framebuffer consists of a memory range, size and format.
Based on these values, simpledrm creates a DRM devices. No actual
modesetting is possible.

A firmware framebuffer might also be specified via device-tree files. If
no device platform data is given, try the DT device node.

Make sure required hardware clocks and regulators are enabled while the
firmware framebuffer is in use. The basic code has been taken from the
simplefb driver and adapted to DRM. Clocks are released automatically
via devres helpers.

The drivers displays a console on simpledrm's framebuffer. The default
framebuffer format is being used.

v4:
	* disable simplefb if simpledrm has been selected (Maxime)
v3:
	* add disable function that clears screen to black (Daniel)
	* set shadow buffering only for fbdev emulation
	* set platform-driver data during device creation
v2:
	* rename driver to simpledrm
	* add dri-devel to MAINTAINERS entry
	* put native format first in primary-plane format list (Daniel)
	* inline simplekms_device_cleanup() (Daniel)
	* use helpers for shadow-buffered planes
	* fix whitespace errors
	* add Device Tree match table
	* clean-up parser wrappers
	* use strscpy()
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> # fbdev support
Acked-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-5-tzimmermann@suse.de
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-6-tzimmermann@suse.de
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-7-tzimmermann@suse.de
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-8-tzimmermann@suse.de
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-9-tzimmermann@suse.de

Platform devices might operate on firmware framebuffers, such as VESA or
EFI. Before a native driver for the graphics hardware can take over the
device, it has to remove any platform driver that operates on the firmware
framebuffer. Aperture helpers provide the infrastructure for platform
drivers to acquire firmware framebuffers, and for native drivers to remove
them later on.

It works similar to the related fbdev mechanism. During initialization, the
platform driver acquires the firmware framebuffer's I/O memory and provides
a callback to be removed. The native driver later uses this information to
remove any platform driver for it's framebuffer I/O memory.

The aperture removal code is integrated into the existing code for removing
conflicting framebuffers, so native drivers use it automatically.

v5:
	* fix build error introduced by rebasing v4
	* fix typo in documentation
v4:
	* hide detach callback in implementation (Daniel)
	* documentation fixes
v3:
	* rebase onto existing aperture infrastructure
	* release aperture from list during detach; fix dangling apertures
	* don't export struct drm_aperture
	* document struct drm_aperture_funcs
v2:
	* rename plaform helpers to aperture helpers
	* tie to device lifetime with devm_ functions
	* removed unsued remove() callback
	* rename kickout to detach
	* make struct drm_aperture private
	* rebase onto existing drm_aperture.h header file
	* use MIT license only for simplicity
	* documentation
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-4-tzimmermann@suse.de

The blitter functions copy a framebuffer to I/O memory using one of
the existing conversion functions.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-3-tzimmermann@suse.de

The memcpy's destination buffer might have a different pitch than the
source. Support different pitches as function argument.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: nerdopolis <bluescreen_avenger@verizon.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-2-tzimmermann@suse.de

[why]
Previously used value was not safe to provide the correct value, i.e. it
could be 0 if not not configured, leading to no MST on this platform.

[how]
Do not use the value from BIOS, but from the structure populated at
encoder initialization time.

Fixes: 98025a62 ("drm/dp_mst: Use Extended Base Receiver Capability DPCD space")
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[fixed open coded drm_dp_link_rate_to_bw_code()]
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430214531.24565-2-nikola.cornij@amd.com

In commit 3235b0f2 ("drm/panel: panel-simple: Use runtime pm to
avoid excessive unprepare / prepare") we started using pm_runtime, but
my patch neglected to add the proper pm_runtime_disable(). Doh! Add
them now.

Fixes: 3235b0f2 ("drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare")
Reported-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.1.I9e6af2529d6c61e5daf86a15a1211121c5223b9a@changeid

Some MIPI DSI panel drivers like 'raydium,rm68200' send
MIPI_DCS_SET_DISPLAY_ON commands in panel_funcs->prepare(), which
requires the MIPI DSI controller and PHY to be ready beforehand.
Without this patch, the nwl-dsi driver gets the MIPI DSI controller
and PHY ready in bridge_funcs->atomic_pre_enable(), which happens after
the panel_funcs->prepare().  So, this patch shifts the bridge operation
ealier from bridge_funcs->atomic_pre_enable() to bridge_funcs->mode_set().
This way, more MIPI DSI panels can connect to this nwl-dsi bridge.

Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Robert Chiras <robert.chiras@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1619170003-4817-4-git-send-email-victor.liu@nxp.com

The check on unchanged HS clock rate in ->mode_set() improves
the callback's performance a bit by early return.  However,
the up-coming patch would get MIPI DSI controller and PHY ready
in ->mode_set() after that check, thus likely skipped.
So, this patch removes that check to make sure MIPI DSI controller
and PHY will be brought up and taken down from ->mode_set() and
->atomic_disable() respectively in pairs.

Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Robert Chiras <robert.chiras@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1619170003-4817-3-git-send-email-victor.liu@nxp.com

This patch replaces ->mode_fixup() with ->atomic_check() so that
a full modeset can be requested from there when crtc_state->active
is changed to be true(which implies only connector's DPMS is brought
out of "Off" status, though not necessarily).  Bridge functions are
added or changed to accommodate the ->atomic_check() callback.  That
full modeset is needed by the up-coming patch which gets MIPI DSI
controller and PHY ready in ->mode_set(), because it makes sure
->mode_set() and ->atomic_disable() are called in pairs.

Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Robert Chiras <robert.chiras@nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1619170003-4817-2-git-send-email-victor.liu@nxp.com

This adds device tree bindings for the Samsung LMS397KF04
RGB DPI display panel.

Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210405234713.3190693-1-linus.walleij@linaro.org

[why]
DP 1.4a spec mandates that if DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT is
set, Extended Base Receiver Capability DPCD space must be used. Without
doing that, the three DPCD values that differ will be wrong, leading to
incorrect or limited functionality. MST link rate, for example, could
have a lower value. Also, Synaptics quirk wouldn't work out well when
Extended DPCD was not read, resulting in no DSC for such hubs.

[how]
Modify MST topology manager to use the values from Extended DPCD where
applicable.

To prevent regression on the sources that have a lower maximum link rate
capability than MAX_LINK_RATE from Extended DPCD, have the drivers
supply maximum lane count and rate at initialization time.

This also reverts commit 2dcab875 ("Revert drm/dp_mst: Retrieve
extended DPCD caps for topology manager"), brining the change back to the
original commit ad44c032 ("drm/dp_mst: Retrieve extended DPCD caps for
topology manager").
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429221151.22020-2-nikola.cornij@amd.com

Add support to overlay plane, in addition to primary and cursor
planes. In this approach, the plane composition still requires an
active primary plane and planes are composed associatively in the
order: (primary <- overlay) <- cursor

It enables to run the following IGT tests successfully:
- kms_plane_cursor:
  - pipe-A-[overlay, primary, viewport]-size-[64, 128, 256]
- kms_atomic:
  - plane-overlay-legacy
and preserves the successful execution of kms_cursor_crc,
kms_writeback and kms_flip
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/8261bf93d8a0e3ffaf81d8e7c9b3e9c229116be3.1619250933.git.melissa.srw@gmail.com

Add support for composing XRGB888 planes in addition to the ARGB8888
format. In the case of an XRGB plane at the top, the composition consists
of copying the RGB values of a pixel from src to dst and clearing alpha
channel, without the need for alpha blending operations for each pixel.

Blend equations assume a completely opaque background, i.e., primary plane
is not cleared before pixel blending but alpha channel is explicitly
opaque (a = 0xff). Also, there is room for performance evaluation in
switching pixel blend operation according to the plane format.

v4:
- clear alpha channel (0xff) after blend color values by pixel
- improve comments on blend ops to reflect the current state
- describe in the commit message future improvements for plane composition
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/07bcf4643d11da9480599fe1b165e478bff58b25.1619250933.git.melissa.srw@gmail.com

Generalize variables and function names used for planes composition
(from cursor to plane), since we will reuse the operations for both
cursor and overlay types.

No functional change.

v4:
- use better names for functions of plane composition (Daniel)
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/ef3249c9ac3a08b7079894f9f1ccf70960194ec7.1619250933.git.melissa.srw@gmail.com

By using drmm_universal_plane_alloc instead of
drm_universal_plane_init, we let the DRM infrastructure handles
resource allocation and cleanup. We can also get rid of some
code repetitions for plane cleanup, improving code maintainability
in vkms.
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/3bbdabed0274d2d0917d1b829dd16f13d7b495f5.1619250933.git.melissa.srw@gmail.com

Struct drm_device.pdev is being moved to legacy status as only legacy
DRM drivers use it. A possible follow-up patchset could remove pdev
entirely.

v4:
	* rebased
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-6-tzimmermann@suse.de

Using struct drm_device.pdev is deprecated. Don't assign it. Users
should upcast from struct drm_device.dev.

v6:
	* also fix the assignment in selftests in this patch (Chris)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-5-tzimmermann@suse.de

References to struct drm_device.pdev should not be used any longer as
the field will be moved into the struct's legacy section. Fix a rsp
comment.

v8:
	* fix commit message (Michael)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-4-tzimmermann@suse.de

References to struct drm_device.pdev should not be used any longer as
the field will be moved into the struct's legacy section. Add a fix
for the rsp commit.

v8:
	* fix commit message (Michael)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Fixes: a50ca39f ("drm/i915: setup the LMEM region")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Cc: "Michał Winiarski" <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-3-tzimmermann@suse.de

Using struct drm_device.pdev is deprecated. Upcast with to_pci_dev()
from struct drm_device.dev to get the PCI device structure.

v9:
	* fix remaining pdev references
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Fixes: ba4e0339 ("drm/ast: Fixed CVE for DP501")
Cc: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-2-tzimmermann@suse.de

idr_init() uses base 0 which is an invalid identifier for this driver.
The idr_alloc for this driver uses 1 as start value for ID range. The
new function idr_init_base allows IDR to set the ID lookup from base 1.
This avoids all lookups that otherwise starts from 0 since 0 is always
unused / available.

References: commit 6ce711f2 ("idr: Make 1-based IDRs more efficient")
Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201105190718.GA89863@localhost

Use min_t to replace min, min_t is a bit fast because min use
twice typeof.
This patch also fix check_patch.pl warning:
WARNING: min() should probably be min_t(unsigned long, num_pages,
VMW_PPN_PER_REMAP)
+unsigned long nr = min(num_pages, (unsigned long)
VMW_PPN_PER_REMAP);
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201119011146.107587-1-bernard@vivo.com

Replace a comma between expression statements by a semicolon.
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201211085751.3089-1-zhengyongjun3@huawei.com

Suppresses the following coccinelle warning:

drivers/gpu/drm/vmwgfx/vmwgfx_validation.c:85:15-22: WARNING use flexible-array member instead
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323130204.45439-1-zou_wei@huawei.com

s/particuar/particular/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210320211617.30746-1-unixbhaskar@gmail.com

Cppcheck complains that the declaration doesn't match the function
definition.  Obviously "left" should come before "right".  The caller
and the function implementation are done this way, it's just the
declaration which is wrong so this doesn't affect runtime.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/YH/720FD978TPhHp@mwanda

>From anx7625 spec, the delay between powering on power supplies and gpio
should be larger than 10ms.

Fixes: 6c744983 ("drm/bridge: anx7625: disable regulators when power off")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210428115116.931328-1-hsinyi@chromium.org

Insert a missing word "power" in Kconfig help text.

Fixes: 6aa19269 ("drm/bridge: Add Analogix anx6345 support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: Icenowy Zheng <icenowy@aosc.io>
Cc: Vasily Khoruzhick <anarsoul@gmail.com>
Cc: Torsten Duwe <duwe@suse.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210424061817.7339-1-rdunlap@infradead.org

And finally, convert all of the code in drm_dp_mst_topology.c over to using
drm_err() and drm_dbg*(). Note that this refactor would have been a lot
more complicated to have tried writing a coccinelle script for, so this
whole thing was done by hand.

v2:
* Fix line-wrapping in drm_dp_mst_atomic_check_mstb_bw_limit()
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-18-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

Next step in the conversion, move everything in drm_dp_dual_mode_helper.c
over to using drm_err() and drm_dbg_kms(). This was done using the
following cocci script:

  @@
  expression list expr;
  @@

  (
  - DRM_DEBUG_KMS(expr);
  + drm_dbg_kms(dev, expr);
  |
  - DRM_ERROR(expr);
  + drm_err(dev, expr);
  )

And correcting the indentation of the resulting code by hand.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-17-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

Now that we've added a back-pointer to drm_device to drm_dp_aux, made
drm_dp_aux available to any functions in drm_dp_helper.c which need to
print to the kernel log, and ensured all of our logging uses a consistent
format, let's do the final step of the conversion and actually move
everything over to using drm_err() and drm_dbg_*().

This was done by using the following cocci script:

  @@
  expression list expr;
  @@

  (
  - DRM_DEBUG_KMS(expr);
  + drm_dbg_kms(aux->drm_dev, expr);
  |
  - DRM_DEBUG_DP(expr);
  + drm_dbg_dp(aux->drm_dev, expr);
  |
  - DRM_DEBUG_ATOMIC(expr);
  + drm_dbg_atomic(aux->drm_dev, expr);
  |
  - DRM_DEBUG_KMS_RATELIMITED(expr);
  + drm_dbg_kms_ratelimited(aux->drm_dev, expr);
  |
  - DRM_ERROR(expr);
  + drm_err(aux->drm_dev, expr);
  )

Followed by correcting the resulting line-wrapping in the results by hand.

v2:
* Fix indenting in drm_dp_dump_access
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-16-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

While this shouldn't really be something that happens all that often, since
we're going to be using the drm_dbg_* log helpers in DRM helpers it's
technically possible that a driver could use an AUX adapter before it's
been associated with it's respective drm_device. While drivers should take
care to avoid this, there's likely going to be situations where it's
difficult to workaround. And since other logging helpers in the kernel tend
to be OK with NULL pointers (for instance, passing a NULL pointer to a "%s"
argument for a printk-like function in the kernel doesn't break anything),
we should do the same for ours.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-15-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

Since this is one of the few functions in drm_dp_mst_topology.c that
doesn't have any way of getting access to a drm_device, let's pass the
drm_dp_mst_topology_mgr down to this function so that it can use
drm_dbg_kms().
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-14-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

So that we can start using drm_dbg_*() throughout the DRM DP helpers.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-13-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

Another function to pass drm_device * down to so we can start using the
drm_dbg_*() in the DRM DP helpers.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-12-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>