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Change-Id: I2f3a9885171995633d0bfb22b7ff8ef8a68683b8
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49508
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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DP link rates are reported in an array of LE16 values. The current code
tries to parse them as 8-bit which doesn't get very far, causing us to
always drop into the fallback path. This patch should fix the issue
(+minor whitespace cleanup).
BUG=b:170630766
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I1e03088ee2d3517bdb5dcc4dcc4ac04f8b14a391
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46318
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
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HPD on this bridge chip is a bit useless. This is an eDP bridge so the HPD is
an internal signal that's only there to signal that the panel is done powering up.
But the bridge chip debounces this signal by between 100 ms and 400 ms (depending on process,
voltage, and temperate). One particular panel asserted HPD 84 ms after it was powered on
meaning that we saw HPD 284 ms after power on. Assume that the panel driver will have the
hardcoded delay in its prepare and always disable HPD.
Change-Id: Iea7dd75b57fa55ec182c0bee09b0f35208357892
Signed-off-by: Vinod Polimera <vpolimer@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45706
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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The kernel guys have found that automatic link training from this bridge
can occasionally fail and needs to be retried. They have added up to 10
retries just to be sure, so let's do the same in coreboot.
BUG=b:169535092
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I713b6851bd51d3527ed4c6e6407dee6b42d09955
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45882
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add sn65dsi86 bridge driver to enable the eDP bridge.
Datasheet used : https://www.ti.com/lit/ds/sllseh2b/sllseh2b.pdf
Changes in V1:
- fix the dp lanes using mask
- separate out the refclk and hpd config to init function
Change-Id: I36a68f3241f0ba316c261a73c2f6d30fe6c3ccdc
Signed-off-by: Vinod Polimera <vpolimer@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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