Messages in this thread | | | From | Neil Armstrong <> | Subject | [PATCH 0/4] drm: bridge: dw-hdmi: Add support for Custom PHYs | Date | Mon, 30 Jan 2017 12:05:14 +0100 |
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The Amlogic GX SoCs implements a Synopsys DesignWare HDMI TX Controller in combination with a very custom PHY.
Thanks to Laurent Pinchart's changes, the HW report the following : Detected HDMI TX controller v2.01a with HDCP (Vendor PHY)
The following differs from common PHY integration as managed in the current driver : - Amlogic PHY is not configured through the internal I2C link - Amlogic PHY do not use the ENTMDS, SVSRET, PDDQ, ... signals from the controller - Amlogic PHY do not export HPD ands RxSense signals to the controller
And finally, concerning the controller integration : - the Controller registers are not flat memory-mapped, and uses an addr+read/write register pair to write all registers. - Inputs only YUV444 pixel data
This is why the following patchset implements : - Conversion to regmap for register access - Add more callbacks ops to handle Custom PHYs - Configure the Input format from the plat_data - Fixes a bug that considers the input to be always RBG and sends bad pixel format to a DVI sink by disabling CSC
This patchset makes the Amlogix GX SoCs HDMI output successfully work, but I do not have access to Renesas, i.MX or RockChip SoCs to test against potentiel regressions, like the regmap conversion.
This patchset is based on the latest Laurent Pinchart dw-hdmi serie at [1] that was recently merged into drm-misc.
Changes since RFC at [2] : - Regmap fixup for 4bytes register access, tested on RK3288 SoC - Move phy callbacks to phy_ops and move Synopsys PHY calls into default ops - Move HDMI link data into shared header - Move Pixel Encoding enum to shared header
[1] http://lkml.kernel.org/r/20170117082910.27023-1-laurent.pinchart+renesas@ideasonboard.com [2] http://lkml.kernel.org/r/1484656294-6140-1-git-send-email-narmstrong@baylibre.com
Neil Armstrong (4): drm: bridge: dw-hdmi: Switch to regmap for register access drm: bridge: dw-hdmi: Add support for custom PHY handling drm: bridge: dw-hdmi: Enable CSC even for DVI drm: bridge: dw-hdmi: Take input format from plat_data
drivers/gpu/drm/bridge/dw-hdmi.c | 313 ++++++++++++++++++++++----------------- include/drm/bridge/dw_hdmi.h | 46 ++++++ 2 files changed, 226 insertions(+), 133 deletions(-)
-- 1.9.1
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