17.02.2022 18:12, Sascha Hauer пишет: > On Thu, Feb 17, 2022 at 05:00:37PM +0300, Dmitry Osipenko wrote: >> 17.02.2022 11:29, Sascha Hauer пишет: >>> From: Douglas Anderson <dianders@xxxxxxxxxxxx> >>> >>> Jitter was improved by lowering the MPLL bandwidth to account for high >>> frequency noise in the rk3288 PLL. In each case MPLL bandwidth was >>> lowered only enough to get us a comfortable margin. We believe that >>> lowering the bandwidth like this is safe given sufficient testing. >> >> There are no device-trees that use "rockchip,rk3288-cru", AFAICS.. > > What do you mean? In my tree I have: > > arch/arm/boot/dts/rk3288.dtsi:863: compatible = "rockchip,rk3288-cru"; > drivers/clk/rockchip/clk-rk3288.c:985:CLK_OF_DECLARE(rk3288_cru, "rockchip,rk3288-cru", rk3288_clk_init); Oh, it is ARM32, I was looking at ARM64 only. My bad. >> Was this change tested on a non-RK3288 devices? > > Yes, on a rk3568 ;) > > The patch has been posted back in 2015 and was added to the Rockchip > downstream kernel in 2016. I don't know how thoroughly Rockchip tests > their kernels, but I assume the patch wouldn't be there if it caused > any problems. Thank you for the clarification.
