mmc: meson-gx: remove Rx phase tuning
authorJerome Brunet <jbrunet@baylibre.com>
Tue, 23 Apr 2019 09:02:34 +0000 (11:02 +0200)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 6 May 2019 09:55:39 +0000 (11:55 +0200)
commit5e6f75f42393d1619ca426a4909df963cc814fbc
tree18b2f0bcce90cdd54bc94f4fbbefda65345fdf03
parentdc38ac8141a664f4cc96306e6de85f68bbee92b9
mmc: meson-gx: remove Rx phase tuning

This remove all the code related to phase settings. Using the Rx phase
for tuning has not been reliable. We had several issues over the past
months, on both v2 and v3 mmc chips After discussing the issue matter
with Amlogic, They suggested to set a phase shift of 180 between Core and
Tx and use signal resampling for the tuning.

Since we won't be playing with the phase anymore, let's remove all the
clock code related to it and set the appropriate value on init.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/host/meson-gx-mmc.c