Re: [PATCH 4/8] pwm: axi-pwmgen: Enable clocks before accessing hardware registers in probe()

[Lee Jones]

On Thu, 05 Nov 2026, Uwe Kleine-König wrote:

> On Thu, Nov 05, 2026 at 02:38:06PM +0000, Lee Jones wrote:
> > axi_pwmgen_probe() calls axi_pwmgen_setup(), which reads and writes MMIO
> > registers to verify the IP core version and determine the channel count,
> > before acquiring and enabling axi_clk.  If the bootloader leaves the AXI
> > peripheral clock gated, accessing the registers causes an unclocked bus
> > access fault.
> 
> Do you have the hardware? Or what convinced you that an access fault
> happens?

These are Sashiko bugs, as we discussed out-of-band.

None of these have been tested on real h/w.

-- 
Lee Jones