[PATCH v2] clk: bcm2835: Do not use prediv with bcm2711's PLLs

Stephen Boyd sboyd at kernel.org
Mon Aug 3 17:27:22 EDT 2020


Quoting Nicolas Saenz Julienne (2020-07-30 11:26:19)
> Contrary to previous SoCs, bcm2711 doesn't have a prescaler in the PLL
> feedback loop. Bypass it by zeroing fb_prediv_mask when running on
> bcm2711.
> 
> Note that, since the prediv configuration bits were re-purposed, this
> was triggering miscalculations on all clocks hanging from the VPU clock,
> notably the aux UART, making its output unintelligible.
> 
> Fixes: 42de9ad400af ("clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support")
> Reported-by: Nathan Chancellor <natechancellor at gmail.com>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne at suse.de>
> ---

Applied to clk-next



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