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author | Dirk Buchwalder <buchwalder@posteo.de> | 2022-02-10 20:31:00 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:45 +0300 |
commit | ca3d7cf53d8f6e83759afc25cf763888a07a8b33 (patch) | |
tree | 09afce4d14bd8e814bc37f0bfb4150e913f3a2c5 /drivers/rpmsg | |
parent | 8c54f6c900d12dcdb0781263df76009c09fddf8a (diff) | |
download | linux-ca3d7cf53d8f6e83759afc25cf763888a07a8b33.tar.xz |
clk: qcom: ipq8074: Use floor ops for SDCC1 clock
[ Upstream commit b77d8306d84f83d1da68028a68c91da9c867b6f6 ]
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: 9607f6224b39 ("clk: qcom: ipq8074: add PCIE, USB and SDCC clocks")
Signed-off-by: Dirk Buchwalder <buchwalder@posteo.de>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220210173100.505128-1-robimarko@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/rpmsg')
0 files changed, 0 insertions, 0 deletions