Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH 1/2] spi: stm32-qspi: defer probe for reset controller | Date | Mon, 3 Feb 2020 14:50:47 +0100 |
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From: Etienne Carriere <etienne.carriere@st.com>
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> --- drivers/spi/spi-stm32-qspi.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
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); -- 2.17.1
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