Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have two *_CLASS_DEVICE kernel config options (LCD_CLASS_DEVICE
and BACKLIGHT_LCD_DEVICE) that do the same job.
The patch removes useless BACKLIGHT_LCD_SUPPORT option
and converts LCD_CLASS_DEVICE into a menu.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
0day reports:
>> drivers/gpu/drm/bridge/ti-sn65dsi86.o: In function
mipi_dsi_detach'
>> drivers/gpu/drm/bridge/ti-sn65dsi86.c:630: undefined reference to
ti_sn_bridge_attach':
>> drivers/gpu/drm/bridge/ti-sn65dsi86.c:249: undefined reference to
mipi_dsi_device_register_full'
>> drivers/gpu/drm/bridge/ti-sn65dsi86.c:276: undefined reference to
mipi_dsi_device_unregister'
Quite obviously the driver depends on DRM_MIPI_DSI.
We can not use depends since the driver configuration uses select,
so we'll have to select the missing dependency instead.
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180815194923.3258-1-sean@poorly.run
Add support for TI's sn65dsi86 dsi2edp bridge chip.
The chip converts DSI transmitted signal to eDP signal,
which is fed to the connected eDP panel.
This chip can be controlled via either i2c interface or
dsi interface. Currently in driver all the control registers
are being accessed through i2c interface only.
Also as of now HPD support has not been added to bridge
chip driver.
Changes in v1:
- Split the dt-bindings and the driver support into separate patches
(Andrzej Hajda).
- Use of gpiod APIs to parse and configure gpios instead of obsolete ones
(Andrzej Hajda).
- Use macros to define the register offsets (Andrzej Hajda).
Changes in v2:
- Separate out edp panel specific HW resource handling from bridge
driver and create a separate edp panel drivers to handle panel
specific mode information and HW resources (Sean Paul).
- Replace pr_* APIs to DRM_* APIs to log error or debug information
(Sean Paul).
- Remove some of the unnecessary structure/variable from driver (Sean
Paul).
- Rename the function and structure prefix "sn65dsi86" to "ti_sn_bridge"
(Sean Paul / Rob Herring).
- Remove most of the hard-coding and modified the bridge init sequence
based on current mode (Sean Paul).
- Remove the existing function to retrieve the EDID data and
implemented this as an i2c_adapter and use drm_get_edid() (Sean Paul).
- Remove the dummy irq handler implementation, will add back the
proper irq handling later (Sean Paul).
- Capture the required enable gpios in a single array based on dt entry
instead of having individual descriptor for each gpio (Sean Paul).
Changes in v3:
- Remove usage of irq_gpio and replace it as "interrupts" property (Rob
Herring).
- Remove the unnecessary header file inclusions (Sean Paul).
- Rearrange the header files in alphabetical order (Sean Paul).
- Use regmap interface to perform i2c transactions.
- Update Copyright/License field and address other review comments
(Jordan Crouse).
Changes in v4:
- Update License/Copyright (Sean Paul).
- Add Kconfig and Makefile changes (Sean Paul).
- Drop i2c gpio handling from this bridge driver, since i2c sda/scl gpios
will be handled by i2c master.
- Update required supplies names.
- Remove unnecessary goto statements (Sean Paul).
- Add mutex lock to power_ctrl API to avoid race conditions (Sean
Paul).
- Add support to parse reference clk frequency from dt(optional).
- Update the bridge chip enable/disable sequence.
Changes in v5:
- Fixed Kbuild test service reported warnings.
Changes in v6:
- Use PM runtime based ref-counting instead of local ref_count mechanism
(Stephen Boyd).
- Clean up some debug logs and indentations (Sean Paul).
- Simplify dp rate calculation (Sean Paul).
- Add support to configure refclk based on input REFCLK pin or DACP/N
pin (Stephen Boyd).
Changes in v7:
- Use static supply entries instead of dynamic allocation (Andrzej
Hajda).
- Defer bridge driver probe if panel is not probed (Andrzej Hajda).
- Update of_graph APIs for correct node reference management. (Andrzej
Hajda).
- Remove local display_mode object (Andrzej Hajda).
- Remove version id check function from driver.
Changes in v8:
- Move dsi register/attach function to bridge driver probe (Andrzej
Hajda).
- Introduce a new helper function to write 16bit words into consecutive
registers (Andrzej Hajda).
- Remove unnecessary macros (Andrzej Hajda).
Changes in v9:
- Remove dsi register/attach from bridge probe, since dsi dev register
completion also waits for any panel or bridge to get added. This creates
deadlock situation when bridge driver calls dsi dev register and
attach before bridge add, in its probe function.
- Fix issues faced during testing of bridge driver on actual HW.
- Remove unnecessary initializations (Stephen Boyd).
- Use local refclk lut size instead of global macro (Sean Paul).
Changes in v10:
- Use refclk to determine if continuous dsi clock is needed or not.
Changes in v11:
- Read DPPLL_SRC register to determine continuous clock instead of
using refclk handle (Stephen Boyd).
Changes in v12:
- Explain in comment as in why dsi dev registration is done in
bridge_attach (Andrzej Hajda).
- Move HPD disable to bridge_pre_enable (Andrzej Hajda).
- Make panel/DDC exclusive until HPD support is added (Andrzej Hajda).
Changes in v13:
- eDP panels report EDID via DP-AUX channel, so remove support for
dedicated DDC line (Andrzej Hajda).
Changes in v14:
- Remove unnecessary drm_panel checks (Andrzej Hajda).
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1532069642-21392-1-git-send-email-spanda@codeaurora.org
We got a few conflicts in drm_atomic.c after merging the DRM writeback support,
now we need a backmerge to unlock develop development on drm-misc-next.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
This patch makes RC_CORE to be selected with this driver.
sil_sii8620 driver calls remote controller interfaces directly
so RC_CORE should be enabled mandatorily.
And some boards not using remote controller device don't really
need to know that RC_CORE config should be enabled to use sil_sii8620
driver only for HDMI.
Changelog v2:
- select INPUT because compiling will fail without INPUT.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1527154379-31886-1-git-send-email-inki.dae@samsung.com
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Merge drm-fixes-for-v4.17-rc6-urgent into drm-next
Need to backmerge some nouveau fixes to reduce
the nouveau -next conflicts a lot.
Signed-off-by: Dave Airlie <airlied@redhat.com>
The driver can work with or without extcon framework, but if extcon is
build as module, sii8620 should be build as module as well.
Fixes: 6888384421 ("drm/bridge/sii8620: use micro-USB cable detection logic to detect MHL")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180409062708.4326-1-a.hajda@samsung.com
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Add a driver for Cadence DPI -> DSI bridge.
This driver only support a subset of Cadence DSI bridge capabilities.
This driver has been tested/debugged in a simulated environment which
explains why some of the features are missing. Here is a
non-exhaustive list of missing features:
* burst mode
* DPHY init/configuration steps
* support for additional input interfaces (SDI input)
DSI commands and non-burst video mode have been tested.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180421070846.10330-1-boris.brezillon@bootlin.com
MHL specification defines Remote Control Protocol(RCP) to
send input events between MHL devices.
The driver now recognizes RCP messages and reacts to them
by reporting key events to input subsystem, allowing
a user to control a device using TV remote control.
Signed-off-by: Maciej Purski <m.purski@samsung.com>
Acked-by: Sean Young <sean@mess.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1503565087-19730-1-git-send-email-m.purski@samsung.com
SiI9234 transmitter converts eTMDS/HDMI signal to MHL 1.0.
It is controlled via I2C bus. Its interaction with other
devices in video pipeline is performed mainly on HW level.
The only interaction it does on device driver level is
filtering-out unsupported video modes, it exposes drm_bridge
interface to perform this operation.
This patch is based on the code refactored by Tomasz Stanislawski
<t.stanislaws@samsung.com>, which was initially developed by:
Adam Hampson <ahampson@sta.samsung.com>
Erik Gilling <konkers@android.com>
Shankar Bandal <shankar.b@samsung.com>
Dharam Kumar <dharam.kr@samsung.com>
Signed-off-by: Maciej Purski <m.purski@samsung.com>
Acked-by: Rob Herring <robh@kernel.org> [for dt bindings]
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1507212431-5801-2-git-send-email-m.purski@samsung.com
Many DRM drivers have common code to make a stub connector
implementation that wraps a drm_panel. By wrapping the panel in a DRM
bridge, all of the connector code (including calls during encoder
enable/disable) goes away.
v2: Fix build with CONFIG_DRM=m, drop "dev" argument that should just
be the panel's dev, move kerneldoc up a level and document
_remove().
v3: Fix another breakage with CONFIG_DRM=m, fix breakage with
CONFIG_OF=n, move protos under CONFIG_DRM_PANEL_BRIDGE, wrap a
line.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> (v2)
Acked-by: Archit Taneja <architt@codeaurora.org> (v2)
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170602202514.11900-1-eric@anholt.net
The driver is already made of 5 separate source files. Move it to a
newly created directory named synopsys where more Synopsys bridge
drivers can be added later (for the DisplayPort controller for
instance).
Suggested-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170303172007.26541-10-laurent.pinchart+renesas@ideasonboard.com
The LVDS encoder driver is a DRM bridge driver that supports the
parallel to LVDS encoders that don't require any configuration. The
driver thus doesn't interact with the device, but creates an LVDS
connector for the panel and exposes its size and timing based on
information retrieved from DT.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170302104728.7150-3-laurent.pinchart+renesas@ideasonboard.com
The video processing pipeline on the second output on the GE B850v3:
Host -> LVDS|--(STDP4028)--|DP -> DP|--(STDP2690)--|DP++ -> Video output
Each bridge has a dedicated flash containing firmware for supporting the
custom design. The result is that in this design neither the STDP4028
nor the STDP2690 behave as the stock bridges would. The compatible
strings include the suffix "-ge-b850v3-fw" to make it clear that the
driver is for the bridges with the firmware which is specific for the GE
B850v3.
The driver is powerless to control the video processing pipeline, as the
two bridges behaves as a single one. The driver is only needed for
telling the host about EDID / HPD, and for giving the host powers to ack
interrupts.
This driver adds one i2c_device for each bridge, but only one
drm_bridge. This design allows the creation of a functional connector
that is capable of reading EDID from the STDP2690 while handling
interrupts on the STDP4028.
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Enric Balletbo <enric.balletbo@collabora.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/ad92919f2eaff2623a551aac94cf11ef948ff9ee.1488555615.git.peter.senna@collabora.com
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Merge tag 'tilcdc-4.10' of https://github.com/jsarha/linux into drm-next
tilcdc changes for v4.10
* tag 'tilcdc-4.10' of https://github.com/jsarha/linux: (23 commits)
drm/tilcdc: fix parsing of some DT properties
drm/tilcdc: Enable frame done irq and functionality for LCDC rev 1
drm/tilcdc: Configure video mode to HW in enable() not in mode_set_nofb()
drm/tilcdc: Load palette at the end of mode_set_nofb()
drm/tilcdc: Add timeout wait for palette loading to complete
drm/tilcdc: Enable palette loading for revision 2 LCDC too
drm/tilcdc: Fix load mode bit-field setting in tilcdc_crtc_enable()
drm/tilcdc: Add tilcdc_write_mask() to tilcdc_regs.h
drm/tilcdc: Fix tilcdc_crtc_create() return value handling
drm/tilcdc: implement palette loading for rev1
drm/tilcdc: Enable sync lost error and recovery handling for rev 1 LCDC
drm/tilcdc: Add drm bridge support for attaching drm bridge drivers
drm/bridge: Add ti-tfp410 DVI transmitter driver
dt-bindings: Move "ti,tfp410.txt" from display/ti to display/bridge
drm/tilcdc: Recover from sync lost error flood by resetting the LCDC
drm/tilcdc: Fix race from forced shutdown of crtc in unload
drm/tilcdc: Use unload to handle initialization failures
drm/tilcdc: Stop using struct drm_driver load() callback
drm/tilcdc: Remove obsolete drm_connector_register() calls
drm/tilcdc: Correct misspelling in error message
...
Add very basic ti-tfp410 DVI transmitter driver. The only feature
separating this from a completely dummy bridge is the EDID read
support trough DDC I2C. Even that functionality should be in a
separate generic connector driver. However, because of missing DRM
infrastructure support the connector is implemented within the bridge
driver. Some tfp410 HW specific features may be added later if needed,
because there is a set of registers behind i2c if it is connected.
This implementation is tested against my new tilcdc bridge support
and it works with BeagleBone DVI-D Cape Rev A3. A DT binding document
is also updated.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
The newly added sound driver depends on SND_SOC_HDMI_CODEC, which in
turn only makes sense when ASoC is enabled, as shown by this warning:
warning: (DRM_MSM && DRM_STI && DRM_MEDIATEK_HDMI && DRM_I2C_NXP_TDA998X && DRM_DW_HDMI_I2S_AUDIO) selects SND_SOC_HDMI_CODEC which has unmet direct dependencies (SOUND && !M68K && !UML && SND && SND_SOC)
Since the audio driver is probably useless without the audio subsystem,
adding a dependency here seems the right solution.
Fixes: 2761ba6c09 ("drm: bridge: add DesignWare HDMI I2S audio support")
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161125205411.1157522-1-arnd@arndb.de
Current dw-hdmi is supporting sound via AHB bus, but it has
I2S audio feature too. This patch adds I2S audio support to dw-hdmi.
This HDMI I2S is supported by using ALSA SoC common HDMI encoder
driver.
Tested-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/8737j2bxba.wl%kuninori.morimoto.gx@renesas.com
SiI8620 transmitter converts eTMDS/HDMI signal to MHL 3.0.
It is controlled via I2C bus. Its interaction with other
devices in video pipeline is performed mainly on HW level.
The only interaction it does on device driver level is
filtering-out unsupported video modes, it exposes drm_bridge
interface to perform this operation.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1476085157-5266-1-git-send-email-a.hajda@samsung.com
Some boards have an entirely passive RGB to VGA bridge, based on DACs
implemented by resistor ladders.
Those might or might not have an i2c bus routed to the VGA connector in
order to access the screen EDIDs.
Add a bridge that doesn't do anything but expose the modes available on the
screen, either based on the EDIDs if available, or based on the XGA
standards.
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20160930143709.1388-3-maxime.ripard@free-electrons.com
Add a drm_bridge driver for the Toshiba TC358767 DPI/DSI to
eDP/DP bridge. Currently only DPI input with 24-bit RGB is
supported.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
The driver has been converted to use drm_bridge instead of
drm_i2c_slave_encoder. We can now move it to the bridge folder.
Create a separate folder since we already have a couple of files and
expect more when we support audio and ADV7533.
Rename the driver to adv7511_drv.c. This will come in handy later
when the driver module will need to be built from multiple object
files.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Add basic support for the sii902x RGB -> HDMI bridge.
This driver does not support audio output yet.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Archit Taneja <architt@codeaurora.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
---
Changes in v8:
- remove useless headers inclusion
- fix macro names (s/SIL/SII)
- drop unneeded hotplug_work field from struct sii902x
- drop drm_connector_unregister() call in the ->destroy() method
- add a timeout when polling a register value
Changes in v6:
- use HDMI_INFOFRAME_SIZE(AVI)
- fix reset_gpio initialization
- reduce the reset time based on Ming feedback
Changes in v5:
- drop the best_encoder() implementation
Changes in v4:
- make reset GPIO optional
- only support attaching to DRM devices supporting atomic updates
Changes in v3:
- fix get_modes() implementation to avoid turning the screen in power
save mode
- rename the driver (sil902x -> sii902x)
Changes in v2:
- fix errors reported by the kbuild robot
fixup! drm: bridge: Add sii902x driver
Although there are other chips from the same family that can reuse this
driver, at the moment we only tested ANX7814 chip.
The ANX7814 is an ultra-low power Full-HD (1080p60) SlimPort transmitter
designed for portable devices. This driver adds initial support for HDMI
to DP pass-through mode.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Daniel Kurtz <djkurtz@chromium.org>
Cc: Nicolas Boichat <drinkcat@chromium.org>
Cc: Thierry Reding <treding@nvidia.com>
[treding@nvidia.com: coding style, propagate regulator_get() errors]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Split the dp core driver from exynos directory to bridge directory,
and rename the core driver to analogix_dp_*, rename the platform
code to exynos_dp.
Beside the new analogix_dp driver would export six hooks.
"analogix_dp_bind()" and "analogix_dp_unbind()"
"analogix_dp_suspned()" and "analogix_dp_resume()"
"analogix_dp_detect()" and "analogix_dp_get_modes()"
The bind/unbind symbols is used for analogix platform driver to connect
with analogix_dp core driver. And the detect/get_modes is used for analogix
platform driver to init the connector.
They reason why connector need register in helper driver is rockchip drm
haven't implement the atomic API, but Exynos drm have implement it, so
there would need two different connector helper functions, that's why we
leave the connector register in helper driver.
Acked-by: Inki Dae <inki.dae@samsung.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Parse the ELD (EDID like data) stored from the HDMI driver to restrict
the sample rates and channels which are available to ALSA. This causes
the ALSA device to reflect the capabilities of the overall audio path,
not just what is supported at the HDMI source interface level.
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Add ALSA based HDMI AHB audio driver for dw_hdmi. The only buffer
format supported by the hardware is its own special IEC958 based format,
which is not compatible with any ALSA format. To avoid doing too much
data manipulation within the driver, we support only ALSAs IEC958 LE and
24-bit PCM formats for 2 to 6 channels, which we convert to its hardware
format.
A more desirable solution would be to have this conversion in userspace,
but ALSA does not appear to allow such transformations outside of
libasound itself.
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Put the Kconfig entries for bridge drivers into a separate menu so that
they are automatically grouped and don't clutter up the top-level menu.
While at it, move the bridge menu towards the end of the top-level menu
where the panel menu is already located.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Use vendor prefixes for Kconfig symbols and filenames. This should make
it easier to identify the various bridge drivers and to organize the
directory.
v2: fix object name for dw-hdmi (Fabio Estevam)
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add drm_panel calls to the driver to make the panel and
bridge work together in tandem.
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Tested-by: Rahul Sharma <rahul.sharma@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Tested-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Thierry Reding <treding@nvidia.com>
the original imx hdmi driver is under drm/imx/,
which depends on imx-drm, so move the imx hdmi
driver out to drm/bridge and rename it to dw_hdmi
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
The recently added PTN3460 device driver uses interfaces that
are provided by the KMS helper infrastructure, so we should
explicitly select that to avoid this linker error:
ERROR: "drm_helper_probe_single_connector_modes" [drivers/gpu/drm/bridge/ptn3460.ko] undefined!
ERROR: "drm_helper_connector_dpms" [drivers/gpu/drm/bridge/ptn3460.ko] undefined!
We have to drop the I2C dependency to avoid a circular dependency
chain, but that's ok because DRM already selects I2C.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This patch adds a drm_bridge driver for the PTN3460 DisplayPort to LVDS
bridge chip.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Thomas Gleixner