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In sun6i_spi_transfer_one() the RX FIFO Ready (SUN6I_INT_CTL_RF_RDY) is unconditionally enabled. A RX interrupt is only needed, if more data than fits into the FIFO is going to be received during this transfer. As the RX-FIFO is drained during transfer complete interrupt, enable the RX FIFO Ready interrupt only if the data doesn't fit into the FIFO. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://lore.kernel.org/r/20200706143443.9855-11-mkl@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
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.