diff options
| author | Etienne Carriere <etienne.carriere@st.com> | 2020-02-03 14:50:47 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-02-11 11:36:31 +0000 |
| commit | 8196f7bcc2adf21f83d82691d537fcef7abaa1c7 (patch) | |
| tree | c49bab4db2981be38df64ccfe8e7201fdafb55ec /drivers/spi/spi-stm32-qspi.c | |
| parent | ea1e5b3354b1610ac16a780535fbdabfda9e6912 (diff) | |
spi: stm32-qspi: defer probe for reset controller
Changes stm32 QSPI driver to defer its probe operation when a reset
controller device have not yet probed but is registered in the
system.
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20200203135048.1299-2-patrice.chotard@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 | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c index 4ef569b47aa6..13bb64bf4c8f 100644 --- a/drivers/spi/spi-stm32-qspi.c +++ b/drivers/spi/spi-stm32-qspi.c @@ -615,7 +615,11 @@ static int stm32_qspi_probe(struct platform_device *pdev) } rstc = devm_reset_control_get_exclusive(dev, NULL); - if (!IS_ERR(rstc)) { + if (IS_ERR(rstc)) { + ret = PTR_ERR(rstc); + if (ret == -EPROBE_DEFER) + goto err; + } else { reset_control_assert(rstc); udelay(2); reset_control_deassert(rstc); |