drm/mipi_dbi: Fix off-by-one bugs in mipi_dbi_blank()
When configuring the frame memory window, the last column and row
numbers are written to the column resp. page address registers. These
numbers are thus one less than the actual window width resp. height.
While this is handled correctly in mipi_dbi_fb_dirty() since commit 03ceb1c8dfd1e293 ("drm/tinydrm: Fix setting of the column/page end
addresses."), it is not in mipi_dbi_blank(). The latter still forgets
to subtract one when calculating the most significant bytes of the
column and row numbers, thus programming wrong values when the display
width or height is a multiple of 256.
Wambui Karuga [Mon, 30 Dec 2019 19:56:09 +0000 (22:56 +0300)]
drm/panel: declare variable as __be16
Declare the temp variable as __be16 to address the following sparse
warning:
drivers/gpu/drm/panel/panel-lg-lg4573.c:45:20: warning: incorrect type in initializer (different base types)
drivers/gpu/drm/panel/panel-lg-lg4573.c:45:20: expected unsigned short [unsigned] [usertype] temp
drivers/gpu/drm/panel/panel-lg-lg4573.c:45:20: got restricted __be16 [usertype] <noident>
- Add pm_runtime_get/put to crtc_enable/disable along with the real
display usage
- Add runtime_get/put to register_show, since register_show() will
access register, need to wakeup HW.
- For the case that PM is not enabled or configured, manually wakeup HW
Jagan Teki [Sun, 22 Dec 2019 13:22:26 +0000 (18:52 +0530)]
drm/sun4i: dsi: Handle bus clock via regmap_mmio_attach_clk
regmap has special API to enable the controller bus clock while
initializing register space, and current driver is using
devm_regmap_init_mmio_clk which require to specify bus
clk_id argument as "bus"
But, the usage of clocks are varies between different Allwinner
DSI controllers. Clocking in A33 would need bus and mod clocks
where as A64 would need only bus clock.
Since A64 support only single bus clock, it is optional to
specify the clock-names on the controller device tree node.
So using NULL on clk_id would get the attached clock.
To support clk_id as "bus" and "NULL" during clock enablement
between controllers, this patch add generic code to handle
the bus clock using regmap_mmio_attach_clk with associated
regmap APIs.
Jagan Teki [Sun, 22 Dec 2019 13:22:25 +0000 (18:52 +0530)]
drm/sun4i: dsi: Get the mod clock for A31
As per the user manual, look like mod clock is not mandatory
for all Allwinner MIPI DSI controllers, it is connected to
CLK_DSI_SCLK for A31 and not available in A64.
So, add compatible check for A31 and get mod clock accordingly.
Yannick Fertré [Wed, 27 Nov 2019 10:23:38 +0000 (11:23 +0100)]
drm/stm: ltdc: move pinctrl to encoder mode set
The pin control must be set to default as soon as possible to
establish a good video link between tv & bridge hdmi
(encoder mode set is call before encoder enable).
At this point in time, compatible string "thine,thc63lvdm83d" is
backed by the lvds-codec driver, and the documentation contained
in thine,thc63lvdm83d.txt is basically the same as the one
contained in lvds-codec.yaml (generic fallback compatible string
aside), therefore absorb thine,thc63lvdm83d.txt.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/
In an effort to repurpose lvds-encoder.c to also serve the
function of LVDS decoders, we ended up defining a new "generic"
compatible string ("lvds-decoder"), therefore adapt the dt schema
to allow for the new compatible string.
The probe function needs to get ahold of the panel device tree
node, and it achieves that by using a combination of
of_graph_get_port_by_id, of_get_child_by_name, and
of_graph_get_remote_port_parent. We can achieve the same goal
by replacing those calls with a call to of_graph_get_remote_node
these days.
Fabrizio Castro [Tue, 17 Dec 2019 23:07:53 +0000 (01:07 +0200)]
drm/bridge: lvds-codec: Add "lvds-decoder" support
Add support for transparent LVDS decoders by adding a new
compatible string ("lvds-decoder") to the driver.
This patch also adds member connector_type to struct lvds_codec,
and that's because LVDS decoders have a different connector type
from LVDS encoders. We fill this new member up with the data
matching the compatible string.
Fabrizio Castro [Wed, 13 Nov 2019 15:51:24 +0000 (15:51 +0000)]
drm/bridge: Repurpose lvds-encoder.c
lvds-encoder.c implementation is also suitable for LVDS decoders,
not just LVDS encoders.
Instead of creating a new driver for addressing support for
transparent LVDS decoders, repurpose lvds-encoder.c for the greater
good with this patch.
This patch only "rebrands" the lvds-encoder.c driver, to make it
suitable for hosting LVDS decoders support. The actual support for
LVDS decoders will come with a later patch.
Compatible string "ti,sn75lvds83" is being used by device tree
rk3188-bqedison2qc.dts, but it's not documented anywhere, therefore
document it within lvds-transmitter.yaml.
ti,ds90c185.txt documents LVDS encoders using the same driver
as the one documented by lvds-transmitter.yaml.
Since the properties listed in ti,ds90c185.txt are the same
as the ones listed in lvds-transmitter.yaml, absorb the dt-binding
into lvds-transmitter.yaml.
Gurchetan Singh [Tue, 17 Dec 2019 23:02:28 +0000 (15:02 -0800)]
udmabuf: fix dma-buf cpu access
I'm just going to put Chia's review comment here since it sums
the issue rather nicely:
"(1) Semantically, a dma-buf is in DMA domain. CPU access from the
importer must be surrounded by {begin,end}_cpu_access. This gives the
exporter a chance to move the buffer to the CPU domain temporarily.
(2) When the exporter itself has other means to do CPU access, it is
only reasonable for the exporter to move the buffer to the CPU domain
before access, and to the DMA domain after access. The exporter can
potentially reuse {begin,end}_cpu_access for that purpose.
Because of (1), udmabuf does need to implement the
{begin,end}_cpu_access hooks. But "begin" should mean
dma_sync_sg_for_cpu and "end" should mean dma_sync_sg_for_device.
Because of (2), if userspace wants to continuing accessing through the
memfd mapping, it should call udmabuf's {begin,end}_cpu_access to
avoid cache issues."
Linus Walleij [Tue, 17 Dec 2019 15:09:59 +0000 (16:09 +0100)]
drm/mcde: Some fixes to handling video mode
The video DSI mode had not really been tested. These fixes makes
it more likely to work on real hardware:
- Put the active width (x width) in the right bits and the VSA
(vertical sync active) in the right bits (those were swapped).
- Calculate the packet sizes in bytes as in the vendor driver,
rather than in bits. Test the calculations agains a
spreadsheet and confirmed by debug prints to be reasonable.
- Also verified the register values with relative confidence
to register dumps from the Samsung GT-I8190 boot loader
graphics. We are not identical but not off by far either.
- Error out if the current mode and refresh frequency doesn't
work out. (In the future we may simply want to scale down
the vrefresh.)
- Handle negative result in front/back/sync packages and fall
back to zero like in the vendor driver.
- Put in lots of clarifying comments and references to the
documentation where the code is hard to understand.
- Set the DSI_VID_VCA_SETTING2 field
DSI_VID_VCA_SETTING2_MAX_LINE_LIMIT to blkline_pck - 6 as in
the vendor driver and mask the field properly.
- Set the DSI_VID_VCA_SETTING1 field
DSI_VID_VCA_SETTING1_MAX_BURST_LIMIT to blkeol_pck - 6 to
blkeol_duration - 6 as in the vendor driver.
Aditya Pakki [Sun, 15 Dec 2019 19:43:44 +0000 (13:43 -0600)]
drm: remove duplicate check on parent and avoid BUG_ON
In drm_dev_init, parent is checked for NULL via assert after
checked in devm_drm_dev_init(). The patch removes the duplicate
check and replaces the assertion with WARN_ON. Further, it returns
-EINVAL consistent with the usage in devm_drm_dev_init.
Checking both is one too much, so wrap a WARN_ON around it to stope
the copypasta.
Acked-by: CK Hu <ck.hu@mediatek.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: CK Hu <ck.hu@mediatek.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Link: https://patchwork.freedesktop.org/patch/msgid/20191213172612.1514842-5-daniel.vetter@ffwll.ch
Daniel Vetter [Sat, 14 Dec 2019 00:09:27 +0000 (01:09 +0100)]
drm/etnaviv: Use dma_resv locking wrappers
I'll add more fancy logic to them soon, so everyone really has to use
them. Plus they already provide some nice additional debug
infrastructure on top of direct ww_mutex usage for the fences tracked
by dma_resv.
v2: Fix the lost _interruptible (Michael)
Acked-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Russell King <linux+etnaviv@armlinux.org.uk> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: etnaviv@lists.freedesktop.org Cc: "Ruhl, Michael J" <michael.j.ruhl@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191214000927.1616384-1-daniel.vetter@ffwll.ch
Daniel Vetter [Mon, 25 Nov 2019 09:43:56 +0000 (10:43 +0100)]
drm/vc4: Use dma_resv locking wrappers
I'll add more fancy logic to them soon, so everyone really has to use
them. Plus they already provide some nice additional debug
infrastructure on top of direct ww_mutex usage for the fences tracked
by dma_resv.
Daniel Vetter [Mon, 25 Nov 2019 09:43:55 +0000 (10:43 +0100)]
drm/msm: Use dma_resv locking wrappers
I'll add more fancy logic to them soon, so everyone really has to use
them. Plus they already provide some nice additional debug
infrastructure on top of direct ww_mutex usage for the fences tracked
by dma_resv.
Jani Nikula [Tue, 10 Dec 2019 12:30:43 +0000 (14:30 +0200)]
drm/print: introduce new struct drm_device based logging macros
Add new struct drm_device based logging macros modeled after the core
kernel device based logging macros. These would be preferred over the
drm printk and struct device based macros in drm code, where possible.
We have existing drm specific struct device based logging functions, but
they are too verbose to use for two main reasons:
* The names are unnecessarily long, for example DRM_DEV_DEBUG_KMS().
* The use of struct device over struct drm_device is too generic for
most users, leading to an extra dereference.
For example:
DRM_DEV_DEBUG_KMS(drm->dev, "Hello, world\n");
vs.
drm_dbg_kms(drm, "Hello, world\n");
It's a matter of taste, but the SHOUTING UPPERCASE has been argued to be
less readable than lowercase.
Some names are changed from old DRM names to be based on the core kernel
logging functions. For example, NOTE -> notice, ERROR -> err, DEBUG ->
dbg.
Due to the conflation of DRM_DEBUG and DRM_DEBUG_DRIVER macro use
(DRM_DEBUG is used widely in drivers though it's supposed to be a core
debugging category), they are named as drm_dbg_core and drm_dbg,
respectively.
The drm_err and _once/_ratelimited variants no longer include the
function name in order to be able to use the core device based logging
macros. Arguably this is not a significant change; error messages should
not be so common to be only distinguishable by the function name.
Ratelimited debug logging macros are to be added later.
Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Sean Paul <sean@poorly.run> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191210123050.8799-1-jani.nikula@intel.com
Ville Syrjälä [Fri, 13 Dec 2019 17:43:48 +0000 (19:43 +0200)]
drm/edid: Make sure the CEA mode arrays have the correct amount of modes
We depend on a specific relationship between the VIC number and the
index in the CEA mode arrays. Assert that the arrays have the expected
size to make sure we've not accidentally left holes in them.
v2: Pimp the BUILD_BUG_ON()s
v3: Fix typos (Manasi)
Ville Syrjälä [Fri, 13 Dec 2019 17:43:45 +0000 (19:43 +0200)]
drm/edid: Abstract away cea_edid_modes[]
We're going to need two cea mode tables (one for VICs < 128,
another one for VICs >= 193). To that end replace the direct
edid_cea_modes[] lookups with a function call. And we'll rename
the array to edid_cea_modes_0[] to indicate how it's to be
indexed.
v2: Fix typos (Tom)
Drop the pointless NULL checks in the loops (Tom)
Assign when declaring (Tom)
Improve the comment for cea_modes_*[] to indicate
that one should always use cea_mode_for_vic() (Tom)
Gerd Hoffmann [Thu, 12 Dec 2019 12:53:45 +0000 (13:53 +0100)]
drm/virtio: batch display update commands.
When the driver submits multiple commands in a row it makes sense to
notify the host only after submitting the last one, so the host can
process them all at once, with a single vmexit.
Add functions to enable/disable notifications to allow that. Use the
new functions for primary plane updates.
Hans de Goede [Mon, 18 Nov 2019 15:51:32 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Explicitly memset the passed in drm_cmdline_mode struct
Instead of only setting mode->specified on false on an early exit and
leaving e.g. mode->bpp_specified and mode->refresh_specified as is,
lets be consistent and just zero out the entire passed in struct at
the top of drm_mode_parse_command_line_for_connector()
Changes in v3:
-Drop "mode->specified = false;" line instead of the "return false;" (oops)
This crasher was reported-by: kernel test robot <lkp@intel.com>
Hans de Goede [Mon, 18 Nov 2019 15:51:31 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Remove some unnecessary code (v2)
fb_get_options() will return fb_mode_option if no video=<connector-name>
argument is present on the kernel commandline, so there is no need to also
do this in drm_mode_parse_command_line_for_connector() as our only caller
uses fb_get_options() to get the mode_option argument.
Changes in v2:
-Split out the changes dealing with the initialization of the mode struct
into a separate patch
Hans de Goede [Mon, 18 Nov 2019 15:51:30 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Add support for specifying panel_orientation (v2)
Sometimes we want to override a connector's panel_orientation from the
kernel commandline. Either for testing and for special cases, e.g. a kiosk
like setup which uses a TV mounted in portrait mode.
Users can already specify a "rotate" option through a video= kernel cmdline
option. But that only supports 0/180 degrees (see drm_client_modeset TODO)
and only works for in kernel modeset clients, not for userspace kms users.
The "panel-orientation" connector property OTOH does support 90/270 degrees
as it leaves dealing with the rotation up to userspace and this does work
for userspace kms clients (at least those which support this property).
Changes in v2:
-Add missing ':' after @panel_orientation (reported by kbuild test robot)
Some options which can be specified on the commandline, such as
margin_right=..., margin_left=..., etc. are applied not only to the
specified mode, but to all modes. As such it would be nice if the user
can simply say e.g.
video=HDMI-1:margin_right=14,margin_left=24,margin_bottom=36,margin_top=42
This commit refactors drm_mode_parse_command_line_for_connector() to
add support for this, and as a nice side effect also cleans up the
function a bit.
Hans de Goede [Mon, 18 Nov 2019 15:51:28 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Set bpp/refresh_specified after successful parsing
drm_connector_get_cmdline_mode() calls
drm_mode_parse_command_line_for_connector() with &connector->cmdline_mode
as mode argument, so anything which we store in the mode arguments gets
kept even if we return false.
Avoid storing a possibly false-postive bpp/refresh_specified setting
in connector->cmdline_mode by moving the setting of these to after
successful parsing of the bpp/refresh parts of the video= argument.
Hans de Goede [Mon, 18 Nov 2019 15:51:25 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Accept extras directly after mode combined with options
Before this commit it was impossible to combine an extra mode argument
specified directly after the resolution with an option, e.g.
video=HDMI-1:720x480e,rotate=180 would not work, either the "e" to force
enable would need to be dropped or the ",rotate=180", otherwise the
mode_option would not be accepted.
This commit fixes this by setting parse_extras to true in this case, so
that drm_mode_parse_cmdline_res_mode() parses the extra arguments directly
after the resolution.
Hans de Goede [Mon, 18 Nov 2019 15:51:24 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Stop parsing extras after bpp / refresh at ', '
Before this commit it was impossible to add an extra mode argument after
a bpp or refresh specifier, combined with an option, e.g.
video=HDMI-1:720x480-24e,rotate=180 would not work, either the "e" to
force enable would need to be dropped or the ",rotate=180", otherwise
the mode_option would not be accepted.
This commit fixes this by fixing the length calculation if extras_ptr
is set to stop the extra parsing at the start of the options (stop at the
',' options_ptr points to).
Hans de Goede [Mon, 18 Nov 2019 15:51:22 +0000 (16:51 +0100)]
drm/modes: parse_cmdline: Fix possible reference past end of string
Before this commit, if the last option of a video=... option is for
example "rotate" without a "=<value>" after it then delim will point to
the terminating 0 of the string, and value which is sets to <delim + 1>
will point one position past the end of the string.
This commit fixes this by enforcing that the contents of delim equals '='
as it should be for options which take a value, this check is done in a
new drm_mode_parse_cmdline_int helper function which factors out the
common integer parsing code for all the options which take an int.
Heiko Stuebner [Mon, 9 Dec 2019 14:31:28 +0000 (15:31 +0100)]
drm/rockchip: add ability to handle external dphys in mipi-dsi
While the common case is that the dsi controller uses an internal dphy,
accessed through the phy registers inside the dsi controller, there is
also the possibility to use a separate dphy from a different vendor.
One such case is the Rockchip px30 that uses a Innosilicon Mipi dphy,
so add the support for handling such a constellation, including the pll
also getting generated inside that external phy.
changes in v5:
- rebased on top of 5.5-rc1
- merged with dsi timing change to prevent ordering conflicts
Some dw-mipi-dsi instances in Rockchip SoCs use external dphys.
In these cases the needs clock will also be generated externally
so these don't need the ref-clock as well.
changes in v5:
- rebased on top of 5.5-rc1
- merged with dsi timing change to prevent ordering conflicts
Heiko Stuebner [Mon, 9 Dec 2019 14:31:26 +0000 (15:31 +0100)]
drm/bridge/synopsys: dsi: move phy_ops callbacks around panel enablement
If implementation-specific phy_ops need to be defined they probably
should be enabled before trying to talk to the panel and disabled only
after the panel was disabled.
Right now they are enabled last and disabled first, so might make it
impossible to talk to some panels - example for this being the px30
with an external Innosilicon dphy that needs the phy to be enabled
to transfer commands to the panel.
So move the calls appropriately.
changed in v5:
- rebased on top of 5.5-rc1
- merged with dsi timing change to prevent ordering conflicts
Heiko Stuebner [Mon, 9 Dec 2019 14:31:25 +0000 (15:31 +0100)]
drm/bridge/synopsys: dsi: driver-specific configuration of phy timings
The timing values for dw-dsi are often dependent on the used display and
according to Philippe Cornu will most likely also depend on the used phy
technology in the soc-specific implementation.
To solve this and allow specific implementations to define them as needed
add a new get_timing callback to phy_ops and call this from the dphy_timing
function to retrieve the necessary values for the specific mode.
Right now this handles the hs2lp + lp2hs where Rockchip SoCs need handling
according to the phy speed, while STM seems to be ok with static values.
changes in v5:
- rebase on 5.5-rc1
- merge into px30 dsi series to prevent ordering conflicts
changes in v4:
- rebase to make it directly fit on top of drm-misc-next after all
changes in v3:
- check existence of phy_ops->get_timing in __dw_mipi_dsi_probe()
- emit actual error when get_timing() call fails
- add tags from Philippe and Yannick
changes in v2:
- add driver-specific handling, don't force all bridge users to use
the same timings, as suggested by Philippe
Suggested-by: Philippe Cornu <philippe.cornu@st.com> Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com> Reviewed-by: Philippe Cornu <philippe.cornu@st.com> Tested-by: Yannick Fertre <yannick.fertre@st.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191209143130.4553-2-heiko@sntech.de
Remove obsolete bundled tfp410 driver with its "ti,tilcdc,tfp410"
devicetree binding. No platform has ever used this driver in the
mainline kernel and if anybody connects tfp410 to tilcdc he or she
should use the generic drm tfp410 bridge driver.
Paul Cercueil [Tue, 10 Dec 2019 14:41:42 +0000 (15:41 +0100)]
gpu/drm: ingenic: Add support for the JZ4770
The LCD controller in the JZ4770 supports up to 720p. While there has
been many new features added since the old JZ4740, which are not yet
handled here, this driver still works fine.
Paul Cercueil [Tue, 10 Dec 2019 14:41:40 +0000 (15:41 +0100)]
gpu/drm: ingenic: Set max FB height to 4095
While the LCD controller can effectively only support a maximum
resolution of 800x600, the framebuffer's height can be much higher,
since we can change the Y start offset.
Linus Walleij [Fri, 6 Dec 2019 09:43:01 +0000 (10:43 +0100)]
drm/gma500: Pass GPIO for Intel MID using descriptors
The GMA500 driver is using the legacy GPIO API to fetch
three optional display control GPIO lines from the SFI
description used by the Medfield platform.
Switch this over to use GPIO descriptors and delete the
custom platform data.
We create three new static locals in the tc35876x bridge
code but it is hardly any worse than the I2C client static
local already there: I tried first to move it to the DRM
driver state container but there are workarounds for
probe order in the code so I just stayed off it, as the
result is unpredictable.
People wanting to do a more throrugh and proper cleanup
of the GMA500 driver can work on top of this, I can't
solve much more since I don't have access to the hardware,
I can only attempt to tidy up my GPIO corner.
Jerry Han [Thu, 12 Dec 2019 11:52:08 +0000 (19:52 +0800)]
drm/panel: Add Boe Himax8279d MIPI-DSI LCD panel
Support Boe Himax8279d 8.0" 1200x1920 TFT LCD panel, it is a MIPI DSI
panel.
V11:
- Use the backlight support in drm_panel to simplify the driver (Sam)
V10:
- Adjust init code, make the format more concise (Emil)
V9:
- kill off default_off_cmds (Emil)
- use mipi_dsi_dcs_set_display_{on,off} in their enable/disable
callbacks. (Emil)
- Adjusting the delay function (Emil)
V8:
- modify PARENTHESIS_ALIGNMENT format (Sam)
- use gpios are required API replace optional gpio API (Emil)
V7:
- Modify communication address
V6:
- Add the information of the reviewer
- Remove unnecessary delays, The udelay_range code gracefully returns
without hitting the scheduler on a delay of 0. (Derek)
- Merge the same data structures, like display_mode and off_cmds (Derek)
- Optimize the processing of results returned by
devm_gpiod_get_optional (Derek)
V5:
- Add the information of the reviewer (Sam)
- Delete unnecessary header files #include <linux/fb.h> (Sam)
- The config DRM_PANEL_BOE_HIMAX8279D appears twice. Drop one of them (Sam)
- ADD static, set_gpios function is not used outside this module (Sam)
V4:
- Frefix all function maes with boe_ (Sam)
- Fsed "enable_gpio" replace "reset_gpio", Make it look clearer (Sam)
- Sort include lines alphabetically (Sam)
- Fixed entries in the makefile must be sorted alphabetically (Sam)
- Add send_mipi_cmds function to avoid duplicating the code (Sam)
- Add the necessary delay(reset_delay_t5) between reset and sending
the initialization command (Rock wang)
V2:
- Use SPDX identifier (Sam)
- Use necessary header files replace drmP.h (Sam)
- Delete unnecessary header files #include <linux/err.h> (Sam)
- Specifies a GPIOs array to control the reset timing,
instead of reading "dsi-reset-sequence" data from DTS (Sam)
- Delete backlight_disable() function when already disabled (Sam)
- Use devm_of_find_backlight() replace of_find_backlight_by_node() (Sam)
- Move the necessary data in the DTS to the current file,
like porch, display_mode and Init code etc. (Sam)
- Add compatible device "boe,himax8279d10p" (Sam)
V1:
- Support Boe Himax8279d 8.0" 1200x1920 TFT LCD panel, it is a MIPI DSI
panel.
Signed-off-by: Jerry Han <jerry.han.hq@gmail.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Derek Basehore <dbasehore@chromium.org> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Reported-by: kbuild test robot <lkp@intel.com> Cc: Jitao Shi <jitao.shi@mediatek.com> Cc: Rock wang <rock_wang@himax.com.cn> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> [fixed boe_panel_get_modes + backlight] Link: https://patchwork.freedesktop.org/patch/msgid/20191212115208.3878-1-jerry.han.hq@gmail.com
1. Drop komeda-CORE product id comparison and put it into the d71_identify
2. Update pipeline node DT-binding:
(a). Skip the needless pipeline DT node.
(b). Return fail if the essential pipeline DT node is missing.
With these changes, for chips in same family no need to change the DT.
Per HW, d71->num_blocks includes reserved blocks but no PERIPH block,
correct the block counting accordingly.
D71 happens to only have one reserved block and periph block, which
hides this counting error.
The udl driver stores the currently active framebuffer to know from
where to accept damage updates.
With the conversion to plane-state damage handling, this is not necessary
any longer. The currently active framebuffer and damaged area are always
stored in the plane state.
The infrastruture for atomic modesetting allows us to use the generic
code for dirty-FB and damage handling. Switch over udl and remove the
driver's implementation. The simple-pipe's update function now picks up
the primary plane's damage and updates a minimal region of the screen.
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