[PATCH v3 1/2] clk: imx: fix integer overflow in AV PLL round rate

[Stephen Boyd]

On 10/12, Emil Lundmark wrote:
> Since 'parent_rate * mfn' may overflow 32 bits, the result should be
> stored using 64 bits.
> 
> The problem was discovered when trying to set the rate of the audio PLL
> (pll4_post_div) on an i.MX6Q. The desired rate was 196.608 MHz, but
> the actual rate returned was 192.000570 MHz. The round rate function should
> have been able to return 196.608 MHz, i.e., the desired rate.
> 
> Fixes: ba7f4f557eb6 ("clk: imx: correct AV PLL rate formula")
> Cc: Anson Huang <b20788 at freescale.com>
> Signed-off-by: Emil Lundmark <emil at limesaudio.com>
> ---

Applied to clk-next

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