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| Filename | Latest commit message | Latest commit date |
|---|---|---|
7e95b16625Process handling QSPI when transmit/receive at qspi_trigger_transfer_out_in() as follows: Setting the trigger, is the number of bytes in the FIFO buffer to determine when there is an interrupt. Then check if the value of triggering number is 32-bytes or 1-byte, there will be corresponding processing Handling (if (n == QSPI_BUFFER_SIZE) esle) this is unnecessary, leads to the same processing of data transmission or reception, The difference here are with ret = rspi_wait_for_tx_empty(rspi); ret = rspi_wait_for_rx_full(rspi); When the nummber trigger is 32 bytes, we only write into FIFO when the FIFO is completely empty (interrupt transmission), and only receive if FIFO is full of 32 bytes of data. In the case of a nummber trigger that is 1 byte, in principle we still need to process rspi_wait_for_tx_empty/full so that FIFO is empty only with the amount of data we need to write to or equal to the number of bytes we need to receive, There is currently no processing of this. And in the current case with this patch, at this time it only needs at least 1 byte received in FIFO that has interrupt received, or FIFO at least 1bytes free can be written into FIFO, This patch therefore does not affect this processing. So we need to eliminate unnecessary waste processing (if (n == QSPI_BUFFER_SIZE) esle), more precisely in waiting for FIFO status. The same with handling in qspi_transfer_out()/qspi_transfer_in(). Signed-off-by: Hoan Nguyen An <na-hoan@jinso.co.jp> Signed-off-by: Mark Brown <broonie@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.