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c5adc0fa63
The role of FLUSH and EOT tag is to flush already scheduled descriptors in BAM HW in case of error. EOT is required only when descriptors are scheduled in RX FIFO. If all the messages are WRITE, then only FLUSH tag will be used. A single BAM transfer can have multiple read and write messages. The EOT and FLUSH tags should be scheduled at the end of BAM HW descriptors. Since the READ and WRITE can be present in any order so for some of the cases, these tags are not being written correctly. Following is one of the example READ, READ, READ, READ Currently EOT and FLUSH tags are being written after each READ. If QUP gets NACK for first READ itself, then flush will be triggered. It will look for first FLUSH tag in TX FIFO and will stop there so only descriptors for first READ descriptors be flushed. All the scheduled descriptors should be cleared to generate BAM DMA completion. Now this patch is scheduling FLUSH and EOT only once after all the descriptors. So, flush will clear all the scheduled descriptors and BAM will generate the completion interrupt. Signed-off-by: Abhishek Sahu <absahu@codeaurora.org> Reviewed-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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| algos | ||
| busses | ||
| muxes | ||
| i2c-boardinfo.c | ||
| i2c-core-acpi.c | ||
| i2c-core-base.c | ||
| i2c-core-of.c | ||
| i2c-core-slave.c | ||
| i2c-core-smbus.c | ||
| i2c-core.h | ||
| i2c-dev.c | ||
| i2c-mux.c | ||
| i2c-slave-eeprom.c | ||
| i2c-smbus.c | ||
| i2c-stub.c | ||
| Kconfig | ||
| Makefile | ||