From d83d89ea68b4726700fa87b22db075e4217e691c Mon Sep 17 00:00:00 2001
From: Patrice Chotard <patrice.chotard@foss.st.com>
Date: Wed, 11 May 2022 09:46:42 +0200
Subject: [PATCH] spi: stm32-qspi: Fix wait_cmd timeout in APM mode
Git-commit: d83d89ea68b4726700fa87b22db075e4217e691c
Patch-mainline: v5.19-rc1
References: git-fixes
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.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 ffdc55f87e82..dd38cb8ffbc2 100644
--- a/drivers/spi/spi-stm32-qspi.c
+++ b/drivers/spi/spi-stm32-qspi.c
@@ -308,7 +308,8 @@ 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);
--
2.35.3