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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8b20d00f0f
Commit [1] enabled the possibility of checking the DVST (Device State Transition) bit of INTSTS0 (Interrupt Status Register 0) and calling the irq_dev_state() handler if the DVST bit is set. But neither commit [1] nor commit [2] actually enabled the DVSE (Device State Transition Interrupt Enable) bit in the INTENB0 (Interrupt Enable Register 0). As a consequence, irq_dev_state() handler is getting called as a side effect of other (non-DVSE) interrupts being fired, which definitely can't be relied upon, if DVST notifications are of any value. Why this doesn't hurt is because usbhsg_irq_dev_state() currently doesn't do much except of a dev_dbg(). Once more work is added to the handler (e.g. detecting device "Suspended" state and notifying other USB gadget components about it), enabling DVSE becomes a hard requirement. Do it in a standalone commit for better visibility and clear explanation. [1] |
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| .. | ||
| common.c | ||
| common.h | ||
| fifo.c | ||
| fifo.h | ||
| Kconfig | ||
| Makefile | ||
| mod_gadget.c | ||
| mod_host.c | ||
| mod.c | ||
| mod.h | ||
| pipe.c | ||
| pipe.h | ||
| rcar2.c | ||
| rcar2.h | ||
| rcar3.c | ||
| rcar3.h | ||
| rza2.c | ||
| rza.c | ||
| rza.h | ||