On Thu, Apr 3, 2025 at 3:54 PM Andy Shevchenko andriy.shevchenko@intel.com wrote:
+Cc: Geert
On Thu, Apr 03, 2025 at 02:07:05PM +0200, Bartosz Golaszewski wrote:
On Wed, 26 Mar 2025 18:38:38 +0100, Francesco Dolcini wrote:
If an input changes state during wake-up and is used as an interrupt source, the IRQ handler reads the volatile input register to clear the interrupt mask and deassert the IRQ line. However, the IRQ handler is triggered before access to the register is granted, causing the read operation to fail.
As a result, the IRQ handler enters a loop, repeatedly printing the "failed reading register" message, until `pca953x_resume` is eventually called, which restores the driver context and enables access to registers.
[...]
Applied, thanks!
Won't this regress as it happens the last time [1]?
Ah, good catch. I'm wondering what the right fix here is but don't really have any ideas at the moment. Any hints are appreciated.
For now, I'm dropping it.
Bart