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| author | Patrice Chotard <patrice.chotard@foss.st.com> | 2022-08-29 14:32:50 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-08-29 16:39:24 +0100 |
| commit | 47c32b2b7fcfa97f7224df222f439fc0ccf94ffe (patch) | |
| tree | 4a87d71274667c92ffccf44d39388e2d6acb1f08 /drivers/spi/spi-stm32-qspi.c | |
| parent | 56ec456293239b3c5dfb0e4dcf22972b1b8c571d (diff) | |
| download | linux-stable-47c32b2b7fcfa97f7224df222f439fc0ccf94ffe.tar.gz linux-stable-47c32b2b7fcfa97f7224df222f439fc0ccf94ffe.tar.bz2 linux-stable-47c32b2b7fcfa97f7224df222f439fc0ccf94ffe.zip | |
spi: stm32-qspi: Fix pm_runtime management in stm32_qspi_transfer_one_message()
ctrl->auto_runtime_pm was wrongly set to true when adding
transfer_one_message() callback.
As explained in commit 6e6ccb3d4cdc ("spi: stm32-qspi: Add pm_runtime support")
the expected behavior is to prevent runtime suspends between each transfer.
Add needed pm_runtime API calls in stm32_qspi_transfer_one_message().
Fixes: a557fca630cc ("spi: stm32_qspi: Add transfer_one_message() spi callback")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Link: https://lore.kernel.org/r/20220829123250.2170562-1-patrice.chotard@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-stm32-qspi.c')
| -rw-r--r-- | drivers/spi/spi-stm32-qspi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c index 679fd1c34f7e..227f450aa5f0 100644 --- a/drivers/spi/spi-stm32-qspi.c +++ b/drivers/spi/spi-stm32-qspi.c @@ -567,6 +567,10 @@ static int stm32_qspi_transfer_one_message(struct spi_controller *ctrl, if (!spi->cs_gpiod) return -EOPNOTSUPP; + ret = pm_runtime_resume_and_get(qspi->dev); + if (ret < 0) + return ret; + mutex_lock(&qspi->lock); gpiod_set_value_cansleep(spi->cs_gpiod, true); @@ -629,6 +633,9 @@ end_of_transfer: msg->status = ret; spi_finalize_current_message(ctrl); + pm_runtime_mark_last_busy(qspi->dev); + pm_runtime_put_autosuspend(qspi->dev); + return ret; } @@ -847,7 +854,6 @@ static int stm32_qspi_probe(struct platform_device *pdev) ctrl->mem_ops = &stm32_qspi_mem_ops; ctrl->use_gpio_descriptors = true; ctrl->transfer_one_message = stm32_qspi_transfer_one_message; - ctrl->auto_runtime_pm = true; ctrl->num_chipselect = STM32_QSPI_MAX_NORCHIP; ctrl->dev.of_node = dev->of_node; |