drm/bridge: tc358767: clean-up link training

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The current link training code does unnecessary retry-loops, and does
extra writes to the registers. It is easier to follow the flow and
ensure it's similar to Toshiba's documentation if we deal with LT inside
tc_main_link_enable() function.

This patch adds tc_wait_link_training() which handles waiting for the LT
phase to finish, and does the necessary LT register setups in
tc_main_link_enable, without extra loops.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-17-tomi.valkeinen@ti.com

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Tomi Valkeinen 2019-05-28 11:27:39 +03:00 • committed by Andrzej Hajda

parent 0bf2514651

commit f953835776

1 changed files with 60 additions and 76 deletions

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drivers/gpu/drm/bridge/tc358767.c

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