[PATCH v7 1/5] clk: bcm: rpi: Manage clock rate in prepare/unprepare callbacks

[Mark Brown]

On Tue, Mar 31, 2026 at 01:49:24PM +0100, Mark Brown wrote:
> On Thu, Mar 12, 2026 at 06:34:23PM -0300, Maíra Canal wrote:

> > On current firmware versions, RPI_FIRMWARE_SET_CLOCK_STATE doesn't
> > actually power off the clock. To achieve meaningful power savings, the
> > clock rate must be set to the minimum before disabling. This might be
> > fixed in future firmware releases.
> 
> I'm seeing boot regressions in -next with NFS root on Raspberry Pi 3B+
> which bisect to this commit.  We get a likely unrelated oops from the
> firmware interface and the boot grinds to a halt some time later since
> the ethernet never comes up:

This boot regression, which was originally reported against -next
several weeks ago, is now present in mainline.  Maíra quickly provided a
fix:

  https://lore.kernel.org/r/20260401111416.562279-2-mcanal@igalia.com

which I have confirmed works but I've not seen any other response to
either that fix or the original thread.
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