fix(st-spi): always check SR_TCF flags in stm32_qspi_wait_cmd()

Currently, SR_TCF flag is checked in case there is data, this criteria
is not correct.

SR_TCF flags is set when programmed number of bytes have been
transferred to the memory device ("bytes" comprised command and data
send to the SPI device).
So even if there is no data, we must check SR_TCF flag.

Change-Id: I99c4145e639c1b842feb3690dd78329179c18132
Signed-off-by: Christophe Kerello <>
1 file changed