From: Patrice Chotard patrice.chotard@foss.st.com
[ Upstream commit d83d89ea68b4726700fa87b22db075e4217e691c ]
In APM mode, TCF and TEF flags are not set. To avoid timeout in stm32_qspi_wait_cmd(), don't check if TCF/TEF are set.
Signed-off-by: Patrice Chotard patrice.chotard@foss.st.com Reported-by: eberhard.stoll@kontron.de Link: https://lore.kernel.org/r/20220511074644.558874-2-patrice.chotard@foss.st.co... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-stm32-qspi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c index 4f24f6392212..9c58dcd7b324 100644 --- a/drivers/spi/spi-stm32-qspi.c +++ b/drivers/spi/spi-stm32-qspi.c @@ -295,7 +295,8 @@ static int stm32_qspi_wait_cmd(struct stm32_qspi *qspi, if (!op->data.nbytes) goto wait_nobusy;
- if (readl_relaxed(qspi->io_base + QSPI_SR) & SR_TCF) + if ((readl_relaxed(qspi->io_base + QSPI_SR) & SR_TCF) || + qspi->fmode == CCR_FMODE_APM) goto out;
reinit_completion(&qspi->data_completion);