Re: [PATCH] clk: qcom: ipq8074: Use floor ops for SDCC1 clock

[Stephen Boyd]

Quoting Robert Marko (2022-02-10 09:31:00)
> From: Dirk Buchwalder <buchwalder@xxxxxxxxx>
> 
> 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@xxxxxxxxx>
> Signed-off-by: Robert Marko <robimarko@xxxxxxxxx>
> ---

Reviewed-by: Stephen Boyd <sboyd@xxxxxxxxxx>