Currently, HDMI driver doesn't consider minimum and maximum allowed rate
of pll3 (video PLL). It works most of the time, but not always.
Consider monitor with resolution 1920x1200, which has pixel clock rate
of 154 MHz. Current code would determine that pll3 rate has to be set to
154 MHz. However, minimum supported rate is 192 MHz. In this case video
output just won't work.
The reason why the driver is written in the way it is, is that at the
time HDMI PHY and clock configuration wasn't fully understood. But now
we have needed knowledge, so the issue can be fixed.
With this fix, clock configuration routine uses full range (1-16) for
clock divider instead of limited one (1, 2, 4, 11). It also considers
minimum and maximum allowed rate for pll3.
Fixes: 56009451d843 ("sunxi: video: Add A64/H3/H5 HDMI driver")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
This patch adds support to load 24bpp BMP files on 16bpp displays. This will be used by the theadorable board. The "old" bmp command did support this operartion mode and to not break compatibility with the move to DM_VIDEO, we need to add this support to the "new" bmp code. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Anatolij Gustschin <agust@denx.de> Acked-by: Anatolij Gustschin <agust@denx.de>
There are HDMI displays where hpd pin is not connected, thus we cannot get it to work unless we specifically set the resolution. Rework the display probing, so hotplug detect failure causes fallback to probing ddc for EDID data. Signed-off-by: Priit Laes <priit.laes@paf.com>
Move PLL initialization code to single place so we won't call it every time we query for EDID data. Signed-off-by: Priit Laes <priit.laes@paf.com>
This patch moves the Armada XP video / LCD driver to DM_VIDEO. With this move, the legacy interface board_video_init() is removed from the theadorable board code (only user of this video driver). The support via DT will be added in a separate patch. This patch also enables DM_VIDEO for the theadorable board, as this is needed to not break git bisect'ability. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Anatolij Gustschin <agust@denx.de> Acked-by: Anatolij Gustschin <agust@denx.de>
- ihs and imx driver fixes - relax EDID validation checks for 0 hsync/vsync pulse width (support some quirky displays)
This adds video output support for Amlogic GXBB/GXL/GXM chips. The supported ports are CVBS and HDMI (based on DW_HDMI). When using HDMI, only DMT modes are supported. There is support for simple-framebuffer (CONFIG_VIDEO_DT_SIMPLEFB) Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jorge Ramire-Ortiz <jramirez@baylibre.com> Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> [narmstrong: fixed defines alignment in meson_canvas.c] Reviewed-by: Anatolij Gustschin <agust@denx.de>
Some IPs like the meson VPU can only feed a particular pixel format to dw_hdmi. As of now, the driver is hardcoded to use RGB888 as input. This commit enables different pixel format inputs, with the appropriate CSC configuration. Signed-off-by: Jorge Ramire-Ortiz <jramirez@baylibre.com> Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Anatolij Gustschin <agust@denx.de>
Some IPs like the meson VPU have a specific way to write to dw_hdmi registers. Make it configurable. Signed-off-by: Jorge Ramirez-Ortiz <jramirez@baylibre.com> [added commit description] Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Anatolij Gustschin <agust@denx.de>
The ihs_video_out driver's error handling is incorrect in two places (one is a missing negation, and in one place a error should be ignored). Fix these two instances. Signed-off-by: Mario Six <mario.six@gdsys.cc>