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c2e1ea320d
If we fail training at a lower DP link rate let's now keep trying until we run out of rates to try. Basically the algorithm here is to start at the link rate that is the theoretical minimum and then slowly bump up until we run out of rates or hit the max rate of the sink. We query the sink using a DPCD read. This is, in fact, important in practice. Specifically at least one panel hooked up to the bridge (AUO B116XAK01) had a theoretical min rate more than 1.62 GHz (if run at 24 bpp) and fails to train at the next rate (2.16 GHz). It would train at 2.7 GHz, though. Signed-off-by: Douglas Anderson <dianders@chromium.org> Tested-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218143416.v3.8.I251add713bc5c97225200894ab110ea9183434fd@changeid |
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| .. | ||
| adv7511 | ||
| analogix | ||
| synopsys | ||
| cdns-dsi.c | ||
| dumb-vga-dac.c | ||
| Kconfig | ||
| lvds-codec.c | ||
| Makefile | ||
| megachips-stdpxxxx-ge-b850v3-fw.c | ||
| nxp-ptn3460.c | ||
| panel.c | ||
| parade-ps8622.c | ||
| parade-ps8640.c | ||
| sii902x.c | ||
| sii9234.c | ||
| sil-sii8620.c | ||
| sil-sii8620.h | ||
| tc358764.c | ||
| tc358767.c | ||
| tc358768.c | ||
| thc63lvd1024.c | ||
| ti-sn65dsi86.c | ||
| ti-tfp410.c | ||