Commit graph

43290 commits

Author SHA1 Message Date
Sean Paul
9f7bae2db1 drm/panel: simple: Use display_timing for lq123p1jx31
Convert the sharp lq123p1jx31 from using a fixed mode to specifying a
display timing with min/typ/max values. This allows us to capture the
timings set forth in the datasheet as well as the additional values that
we've cleared with the display vendor to avoid interference with the
digitizer on the Samsung Chromebook Plus (kevin).

A follow-on patch will specify the override mode for kevin devices.

Changes in v2:
 - None
Changes in v3:
 - None

Cc: Doug Anderson <dianders@chromium.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: devicetree@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180208174855.55620-6-seanpaul@chromium.org
2018-03-12 09:33:53 +01:00
Philippe CORNU
2b7ed18bed drm/panel: Add support for Raydium RM68200 panel driver
This patch adds Raydium Semiconductor Corporation RM68200 5.5" 720x1280
TFT LCD panel driver (MIPI-DSI video mode).

Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302153222.4377-3-philippe.cornu@st.com
2018-03-12 09:27:57 +01:00
Eric Anholt
5651e5e094 drm/panel: simple: Fix the bus format for the Ontat panel
This fixes bad color output.  When I was first testing the device I
had the DPI hardware set to 666 mode, but apparently in the refactor
to use the bus_format information from the panel driver, I failed to
actually update the panel.

Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: e8b6f561b2 ("drm/panel: simple: Add the 7" DPI panel from Adafruit")
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180309233332.1769-1-eric@anholt.net
2018-03-12 08:23:01 +01:00
Stefan Schake
1d49f2e546 drm/vc4: Enable background color fill when necessary
Using the hint from the plane state, we turn on the background color
to avoid display corruption from planes blending with the background.

Changes from v1:
 - Use needs_bg_fill from plane state

Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1520556817-97297-5-git-send-email-stschake@gmail.com
2018-03-09 11:25:11 -08:00
Stefan Schake
823646983b drm/vc4: Move plane state to header
We need to reference it from the CRTC to make a decision for enabling
background color fill.

Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1520556817-97297-4-git-send-email-stschake@gmail.com
2018-03-09 11:25:06 -08:00
Stefan Schake
3d67b68a6a drm/vc4: Check if plane requires background fill
Considering a single plane only, we have to enable background color
when the plane has an alpha format and could be blending from the
background or when it doesn't cover the entire screen.

Changes from v1:
 - Drop unrelated change
 - Move needs_bg_fill to plane state

Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1520556817-97297-3-git-send-email-stschake@gmail.com
2018-03-09 11:25:02 -08:00
Stefan Schake
05202c241f drm/vc4: Set premultiplied for alpha formats
Alpha formats in DRM are assumed to be premultiplied, so we should be
setting the PREMULT bit in the plane configuration for HVS.

Changes from v1:
 - Use correct has_alpha

Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1520556817-97297-2-git-send-email-stschake@gmail.com
2018-03-09 11:24:53 -08:00
Sean Paul
60beeccc72 drm/rockchip: Don't use atomic constructs for psr
Instead of using timer and spinlocks, use delayed_work and
mutexes for rockchip psr. This allows us to make blocking
calls when enabling/disabling psr (which is sort of important
given we're talking over dpcd to the display).

Cc: Caesar Wang <wxt@rock-chips.com>
Cc: 征增 王 <wzz@rock-chips.com>
Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305222324.5872-3-enric.balletbo@collabora.com
2018-03-08 23:28:53 +01:00
zain wang
7f3c191b17 drm/rockchip: analogix_dp: set psr activate/deactivate when enable/disable bridge
There's a race between when bridge_disable and when vop_crtc_disable
are called. If the flush timer triggers a new psr work between these,
we will operate eDP without power shutdowned by bridge_disable. In this
case, moving activate/deactivate to enable/disable bridge to avoid it.

Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305222324.5872-2-enric.balletbo@collabora.com
2018-03-08 23:07:01 +01:00
Jeffy Chen
8ba905f1ae drm/rockchip: dw_hdmi: Move HDMI vpll clock enable to bind()
The HDMI vpll clock should be enabled when bind() is called. So move the
clk_prepare_enable of that clock to bind() function and add the missing
clk_disable_unprepare() required in error handling path and unbind().

Fixes: 12b9f204e8 ("drm: bridge/dw_hdmi: add rockchip rk3288 support")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-5-enric.balletbo@collabora.com
2018-03-08 17:32:53 +01:00
Jeffy Chen
028a9e5c06 drm/rockchip: inno_hdmi: reorder clk_disable_unprepare call in unbind
In bind the clk_prepare_enable of the HDMI pclk is called before adding the
i2c_adapter. So it should be the other way around in unbind, first remove
the i2c_adapter and then call the clk_disable_unprepare.

Fixes: 412d4ae6b7 ("drm/rockchip: hdmi: add Innosilicon HDMI support")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-4-enric.balletbo@collabora.com
2018-03-08 17:32:52 +01:00
Jeffy Chen
61b5ff96d2 drm/rockchip: inno_hdmi: Fix error handling path.
Add missing error handling in bind().

Fixes: 412d4ae6b7 ("drm/rockchip: hdmi: add Innosilicon HDMI support")
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
[moved clk_disable_unprepare reordering in unbind to separate patch]
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-3-enric.balletbo@collabora.com
2018-03-08 17:32:52 +01:00
Jeffy Chen
e45df26438 drm/rockchip: dw-mipi-dsi: Fix connector and encoder cleanup.
In bind()'s error handling path call destroy functions instead of
cleanup functions for encoder and connector and reorder to match how is
called in bind().

In unbind() call the connector and encoder destroy functions.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302175757.28192-2-enric.balletbo@collabora.com
2018-03-08 17:32:52 +01:00
Ville Syrjälä
9aecbc45a3 drm/nouveau: Replace the iturbt_709 prop with the standard COLOR_ENCODING prop
Replace the ad-hoc iturbt_709 property with the new standard
COLOR_ENCODING property. Compiles, but not tested.

v2: Fix typos (Ilia)

Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: nouveau@lists.freedesktop.org
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180220134816.15229-1-ville.syrjala@linux.intel.com
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Ben Skeggs <bskeggs@redhat.com> #irc
2018-03-08 18:25:04 +02:00
Linus Walleij
df99dd9202 drm/pl111: Use max memory bandwidth for resolution
We were previously selecting 1024x768 and 32BPP as the default
set-up for the PL111 consumers.

This does not work on elder systems: the device tree bindings
support a property "max-memory-bandwidth" in bytes/second that
states that if you exceed this the memory bus will saturate.
The result is flickering and unstable images.

Parse the "max-memory-bandwidth" and respect it when
intializing the driver. On the RealView PB11MP, Versatile and
Integrator/CP we get a nice console as default with this code.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180307215819.15814-1-linus.walleij@linaro.org
2018-03-07 23:14:24 +01:00
Linus Walleij
2e7a66a8b5 drm/bridge: sii902x: Retry status read after DDI I2C
The following happens when connection a DVI output driven
from the SiI9022 using a DVI-to-VGA adapter plug:

i2c i2c-0: sendbytes: NAK bailout.
i2c i2c-0: sendbytes: NAK bailout.

Then no picture. Apparently the I2C engine inside the SiI9022
is not smart enough to try to fall back to DDC I2C. Or the
vendor have not integrated the electronics properly. I don't
know which one it is.

After this, the I2C bus seems stalled and the first attempt to
read the status register fails, and the code returns with
negative return value, and the display fails to initialized.

Instead, retry status readout five times and continue even
if this fails.

Tested on the ARM Versatile Express with a DVI-to-VGA
connector, it now gives picture.

Introduce a helper struct device *dev variable to make
the code more readable.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305101702.13441-1-linus.walleij@linaro.org
2018-03-07 22:48:19 +01:00
Linus Walleij
20a0dfeead drm/pl111: Handle the RealView variant separately
We want to cut down the default bpp to 16 on the RealView so
we can have a 1024x768 framebuffer console by default. The
memory bandwidth limitations makes this not work with the
PL111 default of 32bpp.

This builds on top of the earlier patches making the
framebuffer default bpp a per-variant variable.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302090948.6399-4-linus.walleij@linaro.org
2018-03-07 22:48:08 +01:00
Linus Walleij
9f8d4fe94e drm/pl111: Make the default BPP a per-variant variable
The PL110, Integrator and Versatile boards strongly prefer to
use 16 BPP even if other modes are supported, both to keep down
memory consumption and also to easier find a good match to
supported resolutions with consideration taken to the memory
bandwidth of the platforms.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302090948.6399-2-linus.walleij@linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180307084316.23623-1-linus.walleij@linaro.org
Link: https://patchwork.freedesktop.org/patch/msgid/20180307084316.23623-1-linus.walleij@linaro.org
2018-03-07 22:46:46 +01:00
Linus Walleij
bbce9ad9c2 bridge: Elaborate a bit on dumb VGA bridges in Kconfig
It's better if we explain a bit that this pertains to
non-programmable VGA DAC bridges.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302091426.8463-1-linus.walleij@linaro.org
2018-03-07 22:38:50 +01:00
Ville Syrjälä
100bc0d996 drm: Reject bad property flag combinations
Pimp drm_property_type_valid() to check for more fails with the
property flags. Also make the check before adding the property,
and bail out if things look bad.

Since we're now chekcing for more than the type let's also
change the function name to drm_property_flags_valid().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-6-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-07 18:28:34 +02:00
Ville Syrjälä
51abc97658 drm: Make property flags u32
The property flags are part of the uabi and we have 32 bits for them.
Pass them around as u32 internally as well, instead of a signed int.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-5-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-07 18:25:43 +02:00
Ville Syrjälä
8c6c2fe2f1 drm: WARN when trying to add enum value > 63 to a bitmask property
Enum values >63 with a bitmask property is a programmer error. WARN
when someone is attempting this.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-3-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-07 18:21:10 +02:00
Ville Syrjälä
1371f2604d drm: WARN when trying add enum values to non-enum/bitmask properties
Trying to add enum values to non-enum/bitmask properties is a
programmer mistake. WARN to make sure the developers notice
their mistake.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-2-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-07 18:20:53 +02:00
Ville Syrjälä
6f881d04f3 drm: Reject replacing property enum values
If the property already has the enum value WARN and bail.
Replacing enum values doesn't make sense to me.

Throw out the pointless list_empty() while at it.

Cc: Daniel Vetter <daniel@ffwll.ch>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306164849.2862-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-07 18:19:37 +02:00
Marek Szyprowski
2e9b3e74b4 drm/bridge: analogix_dp: Don't create useless connectors
If there is another bridge after analogix_dp, then the connector object
should not be created. This fixes following timeouts on Exynos5420-based
Chromebook2 Peach-PIT board during boot:

exynos-dp 145b0000.dp-controller: AUX CH cmd reply timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!
exynos-dp 145b0000.dp-controller: AUX CH enable timeout!

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-4-m.szyprowski@samsung.com
2018-03-07 16:18:00 +01:00
Marek Szyprowski
f25c835815 drm/bridge: analogix_dp: Postpone enabling runtime power management
Enabling runtime power management early in analogix_dp_bind() causes following
kernel NULL pointer dereference:

Unable to handle kernel NULL pointer dereference at virtual address 000007d8
pgd = 28ffa2e4
[000007d8] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 6 PID: 69 Comm: kworker/6:1 Not tainted 4.16.0-rc1-00062-ge25751974ba8 #3622
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events deferred_probe_work_func
PC is at analogix_dp_resume+0x8/0xc0
LR is at pm_generic_runtime_resume+0x2c/0x38
pc : [<c0531b98>]    lr : [<c0543fec>] psr: a0000113
sp : ee13fbd8  ip : 0000001a  fp : 00000001
r10: ee0eb080  r9 : c0552bd8  r8 : c0fb1d98
r7 : eebb1010  r6 : eeae9808  r5 : 00000000  r4 : d4850415
r3 : ee0ed010  r2 : b2d05e00  r1 : 00000000  r0 : 00000000
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM Segment none
Control: 10c5387d  Table: 2000406a  DAC: 00000051
Process kworker/6:1 (pid: 69, stack limit = 0x913205b4)
Stack: (0xee13fbd8 to 0xee140000)
...
[<c0531b98>] (analogix_dp_resume) from [<c0543fec>] (pm_generic_runtime_resume+0x2c/0x38)
[<c0543fec>] (pm_generic_runtime_resume) from [<c054ffb4>] (__genpd_runtime_resume+0x2c/0x8c)
[<c054ffb4>] (__genpd_runtime_resume) from [<c0552d24>] (genpd_runtime_resume+0x14c/0x258)
[<c0552d24>] (genpd_runtime_resume) from [<c0547798>] (__rpm_callback+0x134/0x214)
[<c0547798>] (__rpm_callback) from [<c0547898>] (rpm_callback+0x20/0x80)
[<c0547898>] (rpm_callback) from [<c0546ff4>] (rpm_resume+0x3a0/0x734)
[<c0546ff4>] (rpm_resume) from [<c05475ec>] (__pm_runtime_resume+0x64/0x9c)
[<c05475ec>] (__pm_runtime_resume) from [<c053b95c>] (__device_attach+0x8c/0x134)
[<c053b95c>] (__device_attach) from [<c053ad08>] (bus_probe_device+0x88/0x90)
[<c053ad08>] (bus_probe_device) from [<c05390d0>] (device_add+0x3a8/0x580)
[<c05390d0>] (device_add) from [<c06764c4>] (i2c_register_adapter+0xd4/0x3ec)
[<c06764c4>] (i2c_register_adapter) from [<c05321c8>] (analogix_dp_bind+0x2a0/0x410)
[<c05321c8>] (analogix_dp_bind) from [<c0528e90>] (exynos_dp_bind+0x9c/0x12c)
[<c0528e90>] (exynos_dp_bind) from [<c0535bc4>] (component_bind_all+0xfc/0x258)
[<c0535bc4>] (component_bind_all) from [<c0522ee8>] (exynos_drm_bind+0x15c/0x28c)
[<c0522ee8>] (exynos_drm_bind) from [<c0536378>] (try_to_bring_up_master+0x1b8/0x29c)
[<c0536378>] (try_to_bring_up_master) from [<c05364fc>] (component_add+0xa0/0x170)
[<c05364fc>] (component_add) from [<c0528fe4>] (exynos_dp_probe+0x64/0xb8)
[<c0528fe4>] (exynos_dp_probe) from [<c053debc>] (platform_drv_probe+0x50/0xb0)
[<c053debc>] (platform_drv_probe) from [<c053bd18>] (driver_probe_device+0x2b8/0x4a0)
[<c053bd18>] (driver_probe_device) from [<c0539e4c>] (bus_for_each_drv+0x44/0x8c)
[<c0539e4c>] (bus_for_each_drv) from [<c053b970>] (__device_attach+0xa0/0x134)
[<c053b970>] (__device_attach) from [<c053ad08>] (bus_probe_device+0x88/0x90)
[<c053ad08>] (bus_probe_device) from [<c053b258>] (deferred_probe_work_func+0x3c/0x168)
[<c053b258>] (deferred_probe_work_func) from [<c014352c>] (process_one_work+0x1d0/0x7bc)
[<c014352c>] (process_one_work) from [<c0143b84>] (worker_thread+0x34/0x4dc)
[<c0143b84>] (worker_thread) from [<c014a30c>] (kthread+0x128/0x164)
[<c014a30c>] (kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
Exception stack(0xee13ffb0 to 0xee13fff8)
ffa0:                                     00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
Code: e2800e37 eafee601 e92d4070 e1a05000 (e59067d8)
---[ end trace bf6046013df7cab2 ]---

This oops happens, because analogix_dp_bind() calls drm_dp_aux_register()
which registers i2c adapter. I2C core tries to runtime get i2c host
device during registration. This ends in analogix_dp_resume(), but dp
context is NULL there. dp context is set in exynos_dp_bind() after
executing analogix_dp_bind(). Fix this issue by postponing enabling runtime
power management after drm_dp_aux_register().

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-3-m.szyprowski@samsung.com
2018-03-07 16:17:58 +01:00
zain wang
ea2a14da0f drm/bridge: analogix_dp: Don't power bridge in analogix_dp_bind
The bridge does not need to be powered in analogix_dp_bind(), so
remove the calls to pm_runtime_get()/phy_power_on()/analogix_dp_init_dp()
as well as their power-off counterparts.

Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
[the patch originally just removed the power_on portion, seanpaul removed
the power off code as well as improved the commit message]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180305085741.18896-2-m.szyprowski@samsung.com
2018-03-07 16:17:56 +01:00
Christian König
186ca446ae drm/prime: make the pages array optional for drm_prime_sg_to_page_addr_arrays
Most of the time we only need the dma addresses.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180227115000.4105-2-christian.koenig@amd.com
Link: https://patchwork.freedesktop.org/patch/msgid/20180227115000.4105-3-christian.koenig@amd.com
Link: https://patchwork.freedesktop.org/patch/msgid/20180227115000.4105-4-christian.koenig@amd.com
Link: https://patchwork.freedesktop.org/patch/msgid/20180227115000.4105-5-christian.koenig@amd.com
Link: https://patchwork.freedesktop.org/patch/msgid/BN6PR12MB18262C0DE9B5F07B9A42EAE7F2C60@BN6PR12MB1826.namprd12.prod.outlook.com
2018-03-06 12:24:52 -05:00
Christian König
681066ec1d drm/prime: fix potential race in drm_gem_map_detach
Unpin the GEM object only after freeing the sg table.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180227115000.4105-1-christian.koenig@amd.com
2018-03-06 12:22:42 -05:00
Ville Syrjälä
5ebbb5b4d4 drm: Check property/enum name length
Reject requests to add properties/enums with an overly long name.
Previously we would have just silently truncated the string and exposed
it userspace.

v2: drm_property_create() returns a pointer

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302140300.31110-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-06 18:03:02 +02:00
Ville Syrjälä
8e5e83ad82 drm: Don't create properties without names
Creating a property that doesn't have a name makes no sense to me. Don't
allow it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180302132544.12491-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-06 18:01:59 +02:00
Neil Armstrong
9c305eb442 drm: bridge: dw-hdmi: Fix overflow workaround for Amlogic Meson GX SoCs
The Amlogic Meson GX SoCs, embedded the v2.01a controller, has been also
identified needing this workaround.
This patch adds the corresponding version to enable a single iteration for
this specific version.

Fixes: be41fc55f1 ("drm: bridge: dw-hdmi: Handle overflow workaround based on device version")
Acked-by: Archit Taneja <architt@codeaurora.org>
[narmstrong: s/identifies/identified and rebased against Jernej's change]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1519386277-25902-1-git-send-email-narmstrong@baylibre.com
2018-03-06 11:52:15 +01:00
Baruch Siach
2efa83920c drm: of: simplify component probe code
Use positive logic for better readability. This also eliminates one
of_node_put() call, making the code shorter.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Archit Taneja <archit@cradlewise.com>
Link: https://patchwork.freedesktop.org/patch/msgid/61c56895d44117d80e7d82f04e729e29c60fadbd.1519327370.git.baruch@tkos.co.il
2018-03-06 14:05:00 +05:30
Joe Moriarty
3bd07ccd27 drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problem
The Parfait (version 2.1.0) static code analysis tool found the
following NULL pointer dereference problem.

- drivers/gpu/drm/drm_drv.c
Any calls to drm_minor_get_slot() could result in the return of a NULL
pointer when an invalid DRM device type is encountered.  The
return of NULL was removed with BUG() from drm_minor_get_slot().

Signed-off-by: Joe Moriarty <joe.moriarty@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180220191157.100960-3-joe.moriarty@oracle.com
2018-03-06 08:14:16 +01:00
Joe Moriarty
4ffb8deeed drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problem
The Parfait (version 2.1.0) static code analysis tool found the
following NULL pointer derefernce problem.

- drivers/gpu/drm/drm_vblank.c
Null pointer checks were added to return values from calls to
drm_crtc_from_index().  There is a possibility, however minute, that
crtc->index may not be found when trying to find the struct crtc
from it's assigned index given in drm_crtc_init_with_planes().
3 return checks for NULL where added with a call to
WARN_ON(!crtc).

Signed-off-by: Joe Moriarty <joe.moriarty@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180220191157.100960-2-joe.moriarty@oracle.com
2018-03-06 08:14:16 +01:00
Ville Syrjälä
81af63a4af drm: Don't pass clip to drm_atomic_helper_check_plane_state()
Move the plane clip rectangle handling into
drm_atomic_helper_check_plane_state(). Drivers no longer
have to worry about such mundane details.

v2: Convert armada, rcar, and sun4i as well
v3: Resolve simple_kms_helper conflict

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sandy Huang <hjc@rock-chips.com>
Cc: "Heiko Stübner" <heiko@sntech.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org> #msm
Link: https://patchwork.freedesktop.org/patch/msgid/20180123170857.13818-5-ville.syrjala@linux.intel.com
Acked-by: Liviu Dudau <liviu.dudau@arm.com> #hdlcd,malidp
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> #imx,mtk
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com> #vmwgfx
Acked-by: Neil Armstrong <narmstrong@baylibre.com> #meson
Acked-by: Shawn Guo <shawnguo@kernel.org> #zte
2018-03-05 20:48:25 +02:00
Ville Syrjälä
bf817d0cf7 drm/armada: Use drm_mode_get_hv_timing() to populate plane clip rectangle
Use drm_mode_get_hv_timing() to fill out the plane clip rectangle.

Since armada isn't atomic we'll use crtc->enabled and crtc->mode instead
of the stuff under crtc_state.

Once everyone agrees on how the clip rectangle gets set up we can
move the code into drm_atomic_helper_check_plane_state().

Cc: Dave Airlie <airlied@redhat.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180123170857.13818-4-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@redhat.com>
2018-03-05 20:41:00 +02:00
Ville Syrjälä
57270b8191 drm/armada: Construct a temporary crtc state for plane checks
As armada isn't an atomic driver trying to pass a non-populated
crtc->state to drm_atomic_helper_check_plane_state() will end in tears.
Construct a temporary crtc state a la drm_plane_helper_check_update()
and pass that instead. For now we just really need crtc_state->enable
to be there.

Cc: Dave Airlie <airlied@redhat.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180123170857.13818-3-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Dave Airlie <airlied@redhat.com>
2018-03-05 20:35:14 +02:00
Stefan Wahren
d8eb9de423 drm/vc4: Replace long HDMI udelay with usleep_range
Since we aren't in atomic context replace this long udelay with a
usleep_range.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/1519475894-11701-1-git-send-email-stefan.wahren@i2se.com
2018-03-05 10:19:21 -08:00
Daniel Stone
423ad7b3cb drm/vc4: Advertise supported modifiers for planes
The IN_FORMATS blob allows the kernel to advertise to userspace which
format/modifier combinations are supported, per plane. Use this to
advertise that we support both T_TILED and linear.

v2:
  - Only advertise T_TILED for RGB (Eric)
  - Actually turn on allow_fb_modifiers (Eric)

Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/170828/
2018-03-05 10:18:30 -08:00
Philippe CORNU
669b710e5e drm/bridge/synopsys: dsi: readl_poll_timeout return value clean up
The readl_poll_timeout() return value is 0 in case of success
so it is better to detect errors without taking care of the
return value sign.

Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180204213624.18288-1-philippe.cornu@st.com
2018-03-05 14:08:16 +01:00
Maarten Lankhorst
5fcdc9d981 drm/atomic: Call ww_acquire_done after drm_modeset_lock_all
After we acquired all generic modeset locks in drm_modeset_lock_all, it's
unsafe acquire any other so just mark acquisition as done.

Atomic drivers shouldn't use drm_modeset_lock_all.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180221152331.9212-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Harry Wentland <harry.wentland@amd.com>
2018-03-05 10:35:32 +01:00
Ville Syrjälä
c8624ede3e drm/i915: Add support for the YCbCr COLOR_RANGE property
Add support for the COLOR_RANGE property on planes. This property
selects whether the input YCbCr data is to treated as limited range
or full range.

On most platforms this is a matter of setting the "YUV range correction
disable" bit, and on VLV/CHV we'll just have to program the color
correction logic to pass the data through unmodified.

v2: Rebase

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214192327.3250-9-ville.syrjala@linux.intel.com
2018-03-02 14:49:10 +02:00
Ville Syrjälä
23b280890a drm/i915: Change the COLOR_ENCODING prop default value to BT.709
Bring us forward from the stone age and switch our default YCbCr->RGB
conversion matrix to BT.709 from BT.601. I would expect most matrial
to be BT.709 these days.

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Acked-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214192327.3250-8-ville.syrjala@linux.intel.com
2018-03-02 14:48:23 +02:00
Ville Syrjälä
b0f5c0badc drm/i915: Add support for the YCbCr COLOR_ENCODING property
Add support for the COLOR_ENCODING plane property which selects
the matrix coefficients used for the YCbCr->RGB conversion. Our
hardware can generally handle BT.601 and BT.709.

CHV pipe B sprites have a fully programmable matrix, so in theory
we could handle anything, but it doesn't seem all that useful to
expose anything beyond BT.601 and BT.709 at this time.

GLK can supposedly do BT.2020, but let's leave enabling that for
the future as well.

v2: Rename bit defines to match the spec more closely (Shashank)

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214192327.3250-7-ville.syrjala@linux.intel.com
2018-03-02 14:46:18 +02:00
Ville Syrjälä
38f24f21ae drm/i915: Fix plane YCbCr->RGB conversion for GLK
On GLK the plane CSC controls moved into the COLOR_CTL register.
Update the code to progam the YCbCr->RGB CSC mode correctly when
faced with an YCbCr framebuffer.

The spec is rather confusing as it calls the mode "YUV601 to RGB709".
I'm going to assume that just means it's going to use the YCbCr->RGB
matrix as specified in BT.601 and doesn't actually change the gamut.

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214192327.3250-6-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
2018-03-02 14:44:27 +02:00
Ville Syrjälä
5deae91911 drm/i915: Correctly handle limited range YCbCr data on VLV/CHV
Turns out the VLV/CHV fixed function sprite CSC expects full range
data as input. We've been feeding it limited range data to it all
along. To expand the data out to full range we'll use the color
correction registers (brightness, contrast, and saturation).

On CHV pipe B we were actually doing the right thing already because we
progammed the custom CSC matrix to do expect limited range input. Now
that well pre-expand the data out with the color correction unit, we
need to change the CSC matrix to operate with full range input instead.

This should make the sprite output of the other pipes match the sprite
output of pipe B reasonably well. Looking at the resulting pipe CRCs,
there can be a slight difference in the output, but as I don't know
the formula used by the fixed function CSC of the other pipes, I don't
think it's worth the effort to try to match the output exactly. It
might not even be possible due to difference in internal precision etc.

One slight caveat here is that the color correction registers are single
bufferred, so we should really be updating them during vblank, but we
still don't have a mechanism for that, so just toss in another FIXME.

v2: Rebase
v3: s/bri/brightness/ s/con/contrast/ (Shashank)
v4: Clarify the constants and math (Shashank)

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: "Tang, Jun" <jun.tang@intel.com>
Reported-by: "Tang, Jun" <jun.tang@intel.com>
Cc: stable@vger.kernel.org
Fixes: 7f1f3851fe ("drm/i915: sprite support for ValleyView v4")
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214192327.3250-5-ville.syrjala@linux.intel.com
2018-03-02 14:42:27 +02:00
Ville Syrjälä
56dbbaff0f drm/atomic: Include color encoding/range in plane state dump
Include color_enconding and color_range in the plane state dump.

v2: Add kerneldoc (danvet)

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180219202846.10628-1-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Harry Wentland <harry.wentland@amd.com>
2018-03-02 14:41:21 +02:00
Jyri Sarha
80f690e9e3 drm: Add optional COLOR_ENCODING and COLOR_RANGE properties to drm_plane
Add a standard optional properties to support different non RGB color
encodings in DRM planes. COLOR_ENCODING select the supported non RGB
color encoding, for instance ITU-R BT.709 YCbCr. COLOR_RANGE selects
the value ranges within the selected color encoding. The properties
are stored to drm_plane object to allow different set of supported
encoding for different planes on the device.

v2: Add/fix kerneldocs, verify bitmasks (danvet)

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Daniel Stone <daniel@fooishbar.org>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
[vsyrjala v2: Add/fix kerneldocs, verify bitmasks]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180219202823.10508-1-ville.syrjala@linux.intel.com
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-03-02 14:23:26 +02:00
Jernej Skrabec
9ffef62f22
drm/sun4i: Allow building on arm64
64-bit ARM SoCs from Allwinner have DE2/TCON/HDMI periphery which
is compatible to 32-bit SoCs, so allow building DRM driver for
arm64 architecture.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180301213442.16677-14-jernej.skrabec@siol.net
2018-03-02 08:46:14 +01:00