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| author | Christian Gmeiner <christian.gmeiner@gmail.com> | 2022-02-22 17:23:25 +0100 |
|---|---|---|
| committer | Jagan Teki <jagan@amarulasolutions.com> | 2022-02-24 13:38:25 +0530 |
| commit | e145606ff29364e948c05d492732f623674d6010 (patch) | |
| tree | 9f6b032b5e206fcdf242db57e2b7fc7dc645a2f7 /drivers/spi | |
| parent | 90de95f7443cb06f014824976251f126ac6f71c0 (diff) | |
| download | u-boot-e145606ff29364e948c05d492732f623674d6010.tar.gz u-boot-e145606ff29364e948c05d492732f623674d6010.tar.bz2 u-boot-e145606ff29364e948c05d492732f623674d6010.zip | |
spi: cadence-qspi: Make reset control optional
In the TI am65 device tree files there is no reset defined. Also
the Linux kernel driver uses devm_reset_control_get_optional_exclusive(..)
to get the reset.
Lets do the same as the kernel does and make thr reset optinal.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/cadence_qspi.c | 14 | ||||
| -rw-r--r-- | drivers/spi/cadence_qspi.h | 2 |
2 files changed, 9 insertions, 7 deletions
diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c index d1b3808c4d..db680618ee 100644 --- a/drivers/spi/cadence_qspi.c +++ b/drivers/spi/cadence_qspi.c @@ -201,11 +201,9 @@ static int cadence_spi_probe(struct udevice *bus) } } - ret = reset_get_bulk(bus, &priv->resets); - if (ret) - dev_warn(bus, "Can't get reset: %d\n", ret); - else - reset_deassert_bulk(&priv->resets); + priv->resets = devm_reset_bulk_get_optional(bus); + if (priv->resets) + reset_deassert_bulk(priv->resets); if (!priv->qspi_is_init) { cadence_qspi_apb_controller_init(plat); @@ -220,8 +218,12 @@ static int cadence_spi_probe(struct udevice *bus) static int cadence_spi_remove(struct udevice *dev) { struct cadence_spi_priv *priv = dev_get_priv(dev); + int ret = 0; + + if (priv->resets) + ret = reset_release_bulk(priv->resets); - return reset_release_bulk(&priv->resets); + return ret; } static int cadence_spi_set_mode(struct udevice *bus, uint mode) diff --git a/drivers/spi/cadence_qspi.h b/drivers/spi/cadence_qspi.h index 49b401168f..19345cac5a 100644 --- a/drivers/spi/cadence_qspi.h +++ b/drivers/spi/cadence_qspi.h @@ -56,7 +56,7 @@ struct cadence_spi_priv { unsigned int qspi_calibrated_cs; unsigned int previous_hz; - struct reset_ctl_bulk resets; + struct reset_ctl_bulk *resets; }; /* Functions call declaration */ |