Quoting Taniya Das (2019-09-03 08:52:12) > Hi, > > On 8/31/2019 3:04 AM, Doug Anderson wrote: > > Hi, > > > > On Fri, Aug 30, 2019 at 12:51 PM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote: > >> > >> Some MMC cards fail to enumerate properly when inserted into an MMC slot > >> on sdm845 devices. This is because the clk ops for qcom clks round the > >> frequency up to the nearest rate instead of down to the nearest rate. > >> For example, the MMC driver requests a frequency of 52MHz from > >> clk_set_rate() but the qcom implementation for these clks rounds 52MHz > >> up to the next supported frequency of 100MHz. The MMC driver could be > >> modified to request clk rate ranges but for now we can fix this in the > >> clk driver by changing the rounding policy for this clk to be round down > >> instead of round up. > > > > Since all the MMC rates are expressed as "maximum" clock rates doing > > it like you are doing it now seems sane. > > > > > > Looks like we need to update/track it for all SDCC clocks for all targets. > Yeah. It would be great if you can send the patches. Otherwise I'll throw it on my todo list named 'forever'.
