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path: root/drivers/gpu/drm/bridge/adv7511/adv7533.c
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2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-14drm: bridge: Constify mode arguments to bridge .mode_set() operationLaurent Pinchart1-1/+1
The mode and ajusted_mode passed to the bridge .mode_set() operation should never be modified by the bridge (and are not in any of the existing bridge drivers). Make them const to make this clear. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-10-09drm: adv7511/33: add HDMI CEC supportHans Verkuil1-36/+2
Add support for HDMI CEC to the drm adv7511/adv7533 drivers. The CEC registers that we need to use are identical for both drivers, but they appear at different offsets in the register map. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: https://patchwork.freedesktop.org/patch/msgid/20171007104658.14528-3-hverkuil@xs4all.nl
2017-04-07drm: convert drivers to use of_graph_get_remote_nodeRob Herring1-10/+2
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>
2016-11-29drm/bridge: adv7511: Enable the audio data and clock pads on adv7533Srinivas Kandagatla1-0/+1
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
2016-09-12drm/bridge: adv7511: add support for the 2nd chipSergei Shtylyov1-3/+2
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
2016-07-13drm/bridge: adv7533: Change number of DSI lanes dynamicallyArchit Taneja1-0/+22
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>
2016-07-13drm/bridge: adv7533: Use internal timing generatorArchit Taneja1-2/+58
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>
2016-07-13drm/bridge: adv7533: Create a MIPI DSI deviceArchit Taneja1-2/+89
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>
2016-07-13drm/bridge: adv7533: Initial support for ADV7533Archit Taneja1-0/+100
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>