15 Jun
2020
15 Jun
'20
1:24 p.m.
On Mon, Jun 15, 2020 at 04:12:28PM +0300, Vladimir Oltean wrote:
On Mon, 15 Jun 2020 at 16:10, Mark Brown broonie@kernel.org wrote:
It's a bit unusual to need to actually free the IRQ over suspend - what's driving that requirement here?
clk_disable_unprepare(dspi->clk); is driving the requirement - same as in dspi_remove case, the module will fault when its registers are accessed without a clock.
I see - this could be fixed by having the interrupt handler bounce the clock on, there's a little overhead from that but hopefully not too much. That should also help with the remove case I guess so long as the clock is registered before the interrupt is requested?