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Commit b77d8306 authored by Dirk Buchwalder's avatar Dirk Buchwalder Committed by Bjorn Andersson
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clk: qcom: ipq8074: Use floor ops for SDCC1 clock



Use floor ops on SDCC1 APPS clock in order to round down selected clock
frequency and avoid overclocking SD/eMMC cards.

For example, currently HS200 cards were failling tuning as they were
actually being clocked at 384MHz instead of 192MHz.
This caused some boards to disable 1.8V I/O and force the eMMC into the
standard HS mode (50MHz) and that appeared to work despite the eMMC being
overclocked to 96Mhz in that case.

There was a previous commit to use floor ops on SDCC clocks, but it looks
to have only covered SDCC2 clock.

Fixes: 9607f622 ("clk: qcom: ipq8074: add PCIE, USB and SDCC clocks")

Signed-off-by: default avatarDirk Buchwalder <buchwalder@posteo.de>
Signed-off-by: default avatarRobert Marko <robimarko@gmail.com>
Reviewed-by: default avatarStephen Boyd <sboyd@kernel.org>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220210173100.505128-1-robimarko@gmail.com
parent 2564aa75
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