Convert drivers to use the new of_graph_get_remote_node() helper
instead of parsing the endpoint node and then getting the remote device
node. Now drivers can just specify the device node and which
port/endpoint and get back the connected remote device node. The details
of the graph binding are nicely abstracted into the core OF graph code.
This changes some error messages to debug messages (in the graph core).
Graph connections are often "no connects" depending on the particular
board, so we want to avoid spurious messages. Plus the kernel is not a
DT validator.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Liviu Dudau <liviu.dudau@arm.com>
Tested-by: Eric Anholt <eric@anholt.net>
Tested-by: Jyri Sarha <jsarha@ti.com>
Tested by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
This patch enables the Audio Data and Clock pads to the adv7533 bridge.
Without this patch audio can not be played.
Cc: David Airlie <airlied@linux.ie>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Andy Green <andy@warmcat.com>
Cc: Dave Long <dave.long@linaro.org>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jose Abreu <joabreu@synopsys.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1480382552-28219-3-git-send-email-john.stultz@linaro.org
The Renesas Wheat board has 2 ADV7513 chips on the same I2C bus, however
the ADV751x driver only supports 1 chip as it tries to assign the packet/
EDID/CEC memory I2C devices to the fixed I2C addresses. Assign these I2C
addresses at the fixed offsets (derived from the programming guide) from
the main register map address instead.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1580212.O1LYdJFM97@wasted.cogentembedded.com
Lower modes on ADV7533 require lower number of DSI lanes for correct
operation. If ADV7533 is being used with 4 DSI lanes, then switch the
lanes to 3 when the target mode's pixel clock is less than 80 Mhz.
Based on patch by Andy Green <andy.green@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
ADV7533 provides an internal timing generator for certain modes that it
can't use the DSI clock directly.
We've observed that HDMI is more stable with the internal timing
generator, especially if there are instabilities in the DSI clock source.
The data spec also seems to recommend the usage of the timing generator
for all modes.
However, on some platforms, it's reported that enabling the timing
generator causes instabilities with the HDMI output.
Create a DT parameter that lets a platform explicitly disable the timing
generator. The timing generator is enabled by default.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
In order to pass DSI specific parameters to the DSI host, we need the
driver to create a mipi_dsi_device DSI device that attaches to the
host.
Use of_graph helpers to get the DSI host DT node. Create a MIPI DSI
device using this host. Finally, attach this device to the DSI host.
Populate DT parameters (number of data lanes for now) that are required
for DSI RX to work correctly. Hardcode few other parameters (rgb,
embedded_sync) for now.
Select DRM_MIPI_DSI config option only when ADV7533 support is enabled.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
ADV7533 is a DSI to HDMI encoder chip. It is a derivative of ADV7511,
with additional blocks to translate input DSI data to parallel RGB
data. Besides the ADV7511 I2C register map, it has additional registers
that require to be configured to activate the DSI Rx block.
Create a new config that enables ADV7533 support. Use DT compatible
strings to populate the ADV7533 type enum. Add minimal register
configurations belonging to the DSI/CEC register map. Keep the ADV7533
code in a separate file.
Originally worked on by Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Rob Herring