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| /optee_os/core/drivers/ |
| H A D | pl022_spi.c | e4b2e43c44934b500dbb9dbf7207d9bcd7a2ab77 Fri Apr 12 14:58:07 UTC 2019 Victor Chong <victor.chong@linaro.org> pl022_spi: simplify receive of remaining data
If the expected number of packets are not received during the
transmit+receive cycle, just receive the remaining data after the
cycle if the Receive FIFO (SSPSR_RNE) is not empty, without depending
on the busy (SSPSR_BSY) flag, else we might miss reading some data as
indicated in [1].
LINK: [1] https://github.com/OP-TEE/optee_os/issues/1461#issuecomment-306156463
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
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