[PATCH v1] spi: cadence_qspi: Probe fail if QSPI clock is not set

If the QSPI clock is not set (read as 0), QSPI driver probe shall fail and prevent further QSPI access.

Signed-off-by: Chee Hong Ang chee.hong.ang@intel.com --- drivers/spi/cadence_qspi.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c index 1e85749209..3bb5c7031d 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -170,6 +170,9 @@ static int cadence_spi_probe(struct udevice *bus) struct clk clk; int ret;

+ if (!CONFIG_CQSPI_REF_CLK) + return -ENODEV; + priv->regbase = plat->regbase; priv->ahbbase = plat->ahbbase;