Commit Graph

64 Commits

Author SHA1 Message Date
Laurent Pinchart
3b2b36e5f0 drm: adv7511: Remove interlaced mode check
The ADV7511 supports interlaced modes fine, there's no need to reject
them.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-12-23 12:01:47 +02:00
Lars-Peter Clausen
9c8af882bf drm: Add adv7511 encoder driver
This patch adds a driver for the Analog Devices adv7511. The adv7511 is
a standalone HDMI transmitter chip. It features a HDMI output interface
on one end and video and audio input interfaces on the other.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2014-11-26 20:09:40 +02:00
Dave Airlie
74cd62ea46 drm/tda998x: update for new drm connector APIs.
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-08-05 10:34:33 +10:00
Dave Airlie
920f946428 Merge branch 'tda998x-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next
This builds upon the previous set of fixes which were pulled on 6th July.
Included in this set are:
- an update from Jean-Francois to add the missing reg documentation entry
  to the device tree documentation.
- conversion of the tda998x driver to the component helpers.

* 'tda998x-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox:
  drm/i2c: tda998x: add component support
  drm/i2c: tda998x: allow re-use of tda998x support code
  drm/i2c: tda998x: fix lack of required reg in DT documentation

Conflicts:
	drivers/gpu/drm/i2c/tda998x_drv.c
2014-08-05 09:26:09 +10:00
Russell King
c707c3619c drm/i2c: tda998x: add component support
Add component helper support to the tda998x driver.  This permits the
TDA998x to be declared as a separate device in device tree, and bound
at the appropriate moment with a co-operating card driver.

The existing slave_encoder interfaces are kept while there are existing
users of it in order to prevent regressions.

Tested-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-01 17:16:56 +01:00
Russell King
a8f4d4d637 drm/i2c: tda998x: allow re-use of tda998x support code
Re-jig the TDA998x code so that we separate the functionality from the
drm slave encoder implementation.  In several places, this is pretty
clearly the correct thing to do, because we can avoid repetitively
having to convert from the drm_encoder to the TDA998x private
structure, particularly with the driver internal functions.

The main motivation behind this change is to allow the code to be
re-used with a standard drm_encoder and drm_connector implementation
based on the component helpers, rather than the slave_encoder system.
The addition of this will be in the following patch.

We keep the slave_encoder interface as there are existing users of
this; we need to give them time to convert and test.

Tested-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-01 17:16:54 +01:00
Jean-Francois Moine
89fc868674 drm/i2c: tda998x: Remove useless test
In tda998x_encoder_destroy(), priv->cec is never NULL, so,
remove its test.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-07-22 11:27:46 +10:00
Dave Airlie
d808e62f7f Merge branch 'tda998x-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox
mode fixes for tda998x.

* 'tda998x-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox:
  drm/i2c: tda998x: add some basic mode validation
  drm/i2c: tda998x: faster polling for edid
  drm/i2c: tda998x: move drm_i2c_encoder_destroy call
2014-07-06 07:48:26 +10:00
Russell King
92fbdfcd7d drm/i2c: tda998x: add some basic mode validation
The TDA998x can't handle modes with clocks above 150MHz, or resolutions
larger than 8192x2048.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-06-26 11:03:25 +01:00
Russell King
713456db17 drm/i2c: tda998x: faster polling for edid
One of Jean-Francois patches changed the EDID polling to once every
10ms for 10 interations, whereas the original code did 1ms for 100
interations.  This appears to cause boot-time detection to take
noticably longer.  Revert this change.

Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-06-26 11:01:51 +01:00
Guido Martínez
2e48cecb55 drm/i2c: tda998x: move drm_i2c_encoder_destroy call
Currently tda998x_encoder_destroy() calls cec_write() and reg_clear(),
as part of the release procedure. Such calls need to access the I2C bus
and therefore, we need to call them before drm_i2c_encoder_destroy()
which unregisters the I2C device.

This commit moves the latter so it's done afterwards.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Signed-off-by: Ezequiel García <ezequiel@vanguardiasur.com.ar>
Cc: <stable@vger.kernel.org> #v3.9+
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-06-26 10:52:03 +01:00
Daniel Vetter
8268bd48af drm/i2c/tda998x: Fix signed overflow issue
This is C standard hair-splitting, but afaict
- sum will be promoted to signed int in computation since
  uint8_t fits
- signed overflow is undefined.

No we need to add up an awful lot of bytes to actually make it
overflow. But I guess the real risk is gcc spotting this and going
bananas. Fix this by simply using unsigned in to force all computations
to use the well-defined unsigned behaviour.

Spotted by coverity.

v2: Simplify the entire computation as suggested by Jean.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Jean-Francois Moine <moinejf@free.fr>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-22 15:39:41 +02:00
Russell King
5e7fe2fef4 drm/i2c: tda998x: always use the same device for all kernel messages
Rather than using a mixture of the parent DRM device and the component
device for messages from the driver, consistently use the component
device for all messages.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-14 20:11:12 +00:00
Jean-Francois Moine
2470feccbf drm/i2c: tda998x: adjust the audio clock divider for S/PDIF
According to some tests on the Cubox (Marvell Armada 510 + TDA19988),
the S/PDIF input asks for a greater audio clock divider.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:43:46 +00:00
Jean-Francois Moine
a8b517e531 drm/i2c: tda998x: code optimization
This patch reduces the number of I2C exchanges by setting many bits in
one write and removing a useless write.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:43:43 +00:00
Jean-Francois Moine
85c988bb26 drm/i2c: tda998x: remove the unused variable ca_i2s
ca_i2s is only ever written to, but never read, so let's get rid of it.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:43:41 +00:00
Jean-Francois Moine
10df1a95d6 drm/i2c: tda998x: make the audio code more readable
This patch adds a definition of the values of the MUX_AP register and
simplifies the macro's defining the fields of the AIP_CLKSEL register.
This makes the format specific audio init sequence more readable.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:43:39 +00:00
Jean-Francois Moine
12473b7d8e drm/i2c: tda998x: use irq for connection status and EDID read
This patch adds the optional treatment of the tda998x IRQ.

The interrupt function is used to know the display connection status
without polling and to speedup reading the EDID.

The IRQ number and trigger type are defined in the i2c client either
by platform data or in the DT.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:43:37 +00:00
Jean-Francois Moine
e47826274e drm/i2c: tda998x: always enable EDID read IRQ
There is no need to enable/disable EDID read IRQ at each EDID block
read. This patch enables the IRQ at init time.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:55 +00:00
Jean-Francois Moine
0d44ea1903 drm/i2c: tda998x: add DT support
This patch adds DT support to the tda998x.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:50 +00:00
Jean-Francois Moine
81b53a166f drm/i2c: tda998x: don't read write-only registers
This patch takes care of the write-only registers of the tda998x.

The registers SOFTRESET, TBG_CNTRL_0 and TBG_CNTRL_1 have all bits
cleared after reset, so, they may be fully re-written.

The register MAT_CONTRL is set to
	MAT_CONTRL_MAT_BP | MAT_CONTRL_MAT_SC(1)
after reset, so, it may be fully set again to this value.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:48 +00:00
Jean-Francois Moine
73d5e253ac drm/i2c: tda998x: don't freeze the system at audio startup time
This patch prevents the system to be freezed at audio startup time,
replacing mdelay by msleep.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:45 +00:00
Jean-Francois Moine
b728fab702 drm/i2c: tda998x: change probe message origin
On probe, a message giving the TDA chip version seems to come from the
DRM driver:

	armada-drm armada-510-drm: found TDA19988

This patch changes the originator of the message to the TDA driver:

	tda998x 0-0070: found TDA19988

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:43 +00:00
Jean-Francois Moine
704d63f599 drm/i2c: tda998x: code cleanup
This patch:
- replaces ARRAY_SIZE() by sizeof() when a number of bytes is needed,
- adds a linefeed in an error message and
- removes an useless variable setting.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:40 +00:00
Russell King
fb7544d773 drm/i2c: tda998x: clean up error chip version checking
This is a nicer way, and results in proper return codes should the
read of the MSB version register fail.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:37 +00:00
Jean-Francois Moine
7d2eadc9b9 drm/i2c: tda998x: check more I/O errors
This patch adds more error checking inn I2C I/O functions.
In case of I/O error, this permits to avoid writing in bad controller
pages, a bad chipset detection or looping when getting the EDID.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:36 +00:00
Jean-Francois Moine
2f7f730a4f drm/i2c: tda998x: simplify the i2c read/write functions
This patch simplifies the i2c read/write functions and permits them to
be easily called in more contexts.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:34 +00:00
Jean-Francois Moine
f0b33b282c drm/i2c: tda998x: use ALSA IEC958 definitions and update audio frequency
This patch sets the frequency as 'not indicated' instead of '48kHz'
and uses the asound values in the channel status definition.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:31 +00:00
Jean-Francois Moine
bdf6345b32 drm/i2c: tda998x: add the active aspect in HDMI AVI frame
The picture aspect setting was zero, which is reserved.
A setting of Same As Picture makes more sense.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:28 +00:00
Jean-Francois Moine
9e541466ee drm/i2c: tda998x: use HDMI constants
This patch replaces hard coded values by hdmi constants.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:41:26 +00:00
Dave Jones
71c68c4fc9 drm/i2c: tda998x: Fix memory leak in tda998x_encoder_init error path.
Commit 6ae668cc19 (drm/i2c: tda998x: check the CEC device creation)
introduced a memory leak in the error path of tda998x_encoder_init

Picked up by the nightly Coverity scan. CID 1174076

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-13 19:40:24 +00:00
Jean-Francois Moine
2e9a3fc3a3 drm/i2c: tda998x: fix the ENABLE_SPACE register
This patch fixes the ENABLE_SPACE register, the value of which was
inverted.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-02 17:48:55 +00:00
Jean-Francois Moine
3ae471f73a drm/i2c: tda998x: set the PLL division factor in range 0..3
The predivider division factor of the register PLL_SERIAL_2 is in the
range 0..3, the value 0 being used for a division by 1.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-02 16:46:08 +00:00
Jean-Francois Moine
2eb4c7b1e7 drm/i2c: tda998x: force the page register at startup time
This patch forces the page register to be set on the first I/O operation.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-02 16:44:52 +00:00
Jean-Francois Moine
fc275a74eb drm/i2c: tda998x: free the CEC device on encoder_destroy
The cec i2c device is created in tda998x_encoder_init() when the DRM
driver starts.
This patch frees it when the DRM driver is unloaded.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-02 16:44:50 +00:00
Jean-Francois Moine
6ae668cc19 drm/i2c: tda998x: check the CEC device creation
This patch checks if the CEC device is well created at intialization
time.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-02 16:44:45 +00:00
Jean-Francois Moine
7288ca07b6 drm/i2c: tda998x: fix bad value in the AIF
The AIF has an uninitialized byte. This patch clears the whole buffer
before filling it.

Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-02-02 16:33:09 +00:00
Russell King
893c3e538d drm/i2c: tda998x: set VIF for full range, underscanned display
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-18 15:58:32 +01:00
Russell King
db6aaf4d55 drm/i2c: tda998x: fix audio muting
Fix a bug that was introduced in commit c4c11dd160 ("drm/i2c: tda998x:
add video and audio input configuration") when Sebastian cleaned up my
original patch.  Without this being fixed, audio is muted when the
display is turned off, never to be re-enabled.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Darren Etheridge <detheridge@ti.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-24 09:41:18 -07:00
David Herrmann
3b28802e37 drm/tda998x: BUG() on invalid audio format
Suppress warning of unused-variables by adding a BUG()+return for invalid
audio-formats.

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-09-05 08:52:19 +10:00
Sebastian Hesselbarth
179f1aa407 drm/i2c: tda998x: prepare for broken sync workaround
Some LCD controller cannot provide valid VESA style sync, i.e. coincident
HS/VS edges. First, this patch adds hskew passed from the adjusted_mode to
reference pixel calculation to allow those controllers to add an offset
relative to the expected reference pixel.

Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:48 +10:00
Sebastian Hesselbarth
088d61d1fd drm/i2c: tda998x: fix sync generation and calculation
This fixes the wrong sync generation and sync calculation of TDA998x
for HS/VS-based sync detection.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:38 +10:00
Russell King
c4c11dd160 drm/i2c: tda998x: add video and audio input configuration
This patch adds tda998x specific parameters to allow it to be configured
for different boards using it. Also, this implements rudimentary audio
support for S/PDIF attached controllers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:32 +10:00
Russell King
5e74c22cd1 drm/i2c: tda998x: prepare for video input configuration
The video-input-port (VIP) is highly configurable. This prepares
current driver to allow to configure VIP configuration, as some
boards connect lcd controller and TDA998x "pin-swapped" and depend
on VIP to swap the pins by register configuration.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:19 +10:00
Russell King
20c17675fe drm/i2c: tda998x: fix npix/nline programming
The npix/nline registers are supposed to be programmed with the total
number of pixels/lines, not the displayed pixels/lines, and not minus
one either.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:13 +10:00
Russell King
bcb2481df0 drm/i2c: tda998x: ensure VIP output mux is properly set
When switching between various drivers for this device, it's possible
that some critical registers are left containing values which affect
the device operation.  One such case encountered is the VIP output
mux register.  This defaults to 0x24 on powerup, but other drivers may
set this to 0x12.  This results in incorrect colours.

Fix this by ensuring that the register is always set to the power on
default setting.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:07 +10:00
Russell King
063b472fbb drm/i2c: tda998x: fix EDID reading on TDA19988 devices
TDA19988 devices need their RAM enabled in order to read EDID
information.  Add support for this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Russell King <rmk_kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-08-19 09:10:00 +10:00
Rob Clark
e7792ce2da drm/i2c: nxp-tda998x (v3)
Driver for the NXP TDA998X i2c hdmi encoder slave.

v1: original
v2: fix npix/nline programming
v3: add Kconfig, fix dup'd MODULE_DESCRIPTION

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Koen Kooi <koen@dominion.thruhere.net>
2013-02-19 17:57:44 -05:00
Rob Clark
6504d0d990 drm/i2c: give i2c it's own Kconfig
Move this out of nouveau directory.  As we start to add more encoder
slaves used by other drivers, it makes sense to put the Kconfig bits in
one place.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-02-08 13:34:07 +10:00
Daniel Vetter
2d13b6796e drm: encapsulate crtc->set_config calls
With refcounting we need to adjust framebuffer refcounts at each
callsite - much easier to do if they all call the same little helper
function.

Reviewed-by: Rob Clark <rob@ti.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-01-20 15:57:58 +01:00