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On tx channel abort a cppi interrupt is generated for a short time by setting the lowest bit of the TCPPICOMPPTR register. It is then reset immediately by clearing the bit. When the interrupt handler is run, it does not detect an interrupt in the TCPPIMSKSR or RCPPIMSKSR registers and thus exits early without writing the TCPPIEOIR register. It appears that this inhibits further cppi interrupts until the handler is called by chance, f.ex. from davinci_interrupt(). By moving the unmasking of the interrupt below the writes to TCPPICOMPPTR, no interrupt is generated and no write to TCPPIEOIR is necessary. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| blackfin.c | ||
| blackfin.h | ||
| cppi_dma.c | ||
| cppi_dma.h | ||
| davinci.c | ||
| davinci.h | ||
| musb_core.c | ||
| musb_core.h | ||
| musb_debug.h | ||
| musb_dma.h | ||
| musb_gadget.c | ||
| musb_gadget.h | ||
| musb_gadget_ep0.c | ||
| musb_host.c | ||
| musb_host.h | ||
| musb_io.h | ||
| musb_regs.h | ||
| musb_virthub.c | ||
| musbhsdma.c | ||
| musbhsdma.h | ||
| omap2430.c | ||
| omap2430.h | ||
| tusb6010.c | ||
| tusb6010.h | ||
| tusb6010_omap.c | ||