Messages in this thread | | | Subject | Re: [PATCH] clk: qcom: ipq8074: Use floor ops for SDCC1 clock | From | Stephen Boyd <> | Date | Thu, 17 Feb 2022 16:14:36 -0800 |
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Quoting Robert Marko (2022-02-10 09:31:00) > From: Dirk Buchwalder <buchwalder@posteo.de> > > 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>
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