[PATCH v3 1/1] clk: sunxi-ng: h616: Reparent GPU clock during frequency changes
Chen-Yu Tsai
wens at csie.org
Sun Feb 23 09:03:25 PST 2025
On Thu, 20 Feb 2025 12:38:08 +0100, Philippe Simons wrote:
> The H616 manual does not state that the GPU PLL supports
> dynamic frequency configuration, so we must take extra care when changing
> the frequency. Currently any attempt to do device DVFS on the GPU lead
> to panfrost various ooops, and GPU hangs.
>
> The manual describes the algorithm for changing the PLL
> frequency, which the CPU PLL notifier code already support, so we reuse
> that to reparent the GPU clock to GPU1 clock during frequency
> changes.
>
> [...]
Applied to clk-for-6.15 in git at github.com:linux-sunxi/linux-sunxi.git, thanks!
[1/1] clk: sunxi-ng: h616: Reparent GPU clock during frequency changes
commit: eb963d7948ce6571939c6875424b557b25f16610
Best regards,
--
Chen-Yu Tsai <wens at csie.org>
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