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spi: stm32-qspi: Fix pm_runtime management in stm32_qspi_transfer_one_message()

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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: a557fca630 ("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>
This commit is contained in:
Patrice Chotard 2022-08-29 14:32:50 +02:00 committed by Mark Brown
parent 56ec456293
commit 47c32b2b7f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 1 deletions
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8
drivers/spi/spi-stm32-qspi.c
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@ -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;