On 07/09, Marek Vasut wrote: > In case the initial values of the FOD registers are not configured in > the OTP or by the bootloader, it is possible that the FOD registers > will contain zeroes. The code in vc5_fod_recalc_rate() immediately > feeds the FOD divider value obtained from the FOD registers into the > div64_u64() and if the FOD divider value is zero, triggers division > by zero exception. > > Check if the FOD divider value is zero and return the frequency of > the FOD output as 0 Hz if it is so. This prevents the division by > zero exception. > > Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx> > Cc: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> > Cc: Alexey Firago <alexey_firago@xxxxxxxxxx> > Cc: Michael Turquette <mturquette@xxxxxxxxxxxx> > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > Cc: linux-renesas-soc@xxxxxxxxxxxxxxx > Tested-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > on Salvator-XS with the display LVDS output. > --- Applied to clk-next -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
