Thread (4 messages) read the whole thread 4 messages, 3 authors, 2025-02-23

Re: [PATCH v3 1/1] clk: sunxi-ng: h616: Reparent GPU clock during frequency changes

From: Chen-Yu Tsai <hidden>
Date: 2025-02-23 17:03:28
Also in: linux-clk, linux-sunxi, lkml

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@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 [off-list ref]

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