The possible regression in kernel 4.8 - clk: imx: correct AV PLL rate formula

[Fabio Estevam]

Hi Ken,

On Thu, Oct 6, 2016 at 8:26 PM, Ken.Lin <ken.lin at advantech.com> wrote:
> Hi,
>
> We found a possible regression issue (not seen in kernel 4.7-stable), which has to do with the new NXP commit ba7f4f557eb67ee21c979c8539dc1886f5d5341c when we did a DP test (1920x1080 at 60) with clock source PLL5.
> The DP desired pixel clock (148.5MHz that is calculated from the input of PLL output frequency) would be correct again when we reverted this commit.
> Could you please help check if the commit has the side effect since it would have impacts on our on-going project when it requires moving from kernel 4.7 to kernel 4.8 or newer version?
>
> Please check the following URL for the details
> https://www.dropbox.com/s/7wc5jdp8unlsiob/possible_regression_for_clk_imx_correct_VL_PLL_rate_formula.pdf?dl=0

Do these patches from Emil fix the issue?

http://www.spinics.net/lists/arm-kernel/msg535204.html

and

http://www.spinics.net/lists/arm-kernel/msg535203.html

Thanks