diff options
| author | Venkatesh Yadav Abbarapu <[email protected]> | 2025-06-26 11:54:40 +0530 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2025-07-08 14:58:43 +0200 |
| commit | b7146855774e0b9653f027b80cfcd865db626748 (patch) | |
| tree | 9a349db5e30d81e48a3522e9bd2ba192a96e6c66 | |
| parent | 1b267fe1824e418c23185c878ccad6e8d3ce307d (diff) | |
mmc: zynq_sdhci: Reset the host controller
Reset the host controller at the early stage of probe so that the
configuration will be done properly for reboot cases.
Signed-off-by: Venkatesh Yadav Abbarapu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michal Simek <[email protected]>
| -rw-r--r-- | drivers/mmc/zynq_sdhci.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c index 2375b15539b..3b682918b03 100644 --- a/drivers/mmc/zynq_sdhci.c +++ b/drivers/mmc/zynq_sdhci.c @@ -1127,6 +1127,28 @@ static int arasan_sdhci_probe(struct udevice *dev) if (arasan_sdhci_is_compatible(dev, SDHCI_COMPATIBLE_VERSAL_NET_EMMC)) priv->internal_phy_reg = true; + ret = reset_get_bulk(dev, &priv->resets); + if (ret == -ENOTSUPP || ret == -ENOENT) { + dev_warn(dev, "Reset not found\n"); + } else if (ret) { + dev_err(dev, "Reset failed\n"); + return ret; + } + + if (!ret) { + ret = reset_assert_bulk(&priv->resets); + if (ret) { + dev_err(dev, "Reset assert failed\n"); + return ret; + } + + ret = reset_deassert_bulk(&priv->resets); + if (ret) { + dev_err(dev, "Reset release failed\n"); + return ret; + } + } + ret = clk_get_by_index(dev, 0, &clk); if (ret < 0) { dev_err(dev, "failed to get clock\n"); |