[PATCH v2 2/2] ata: ahci_brcm: BCM7216 reset is self de-asserting
From: Florian Fainelli
Date: Mon Jan 06 2020 - 14:19:16 EST
The BCM7216 reset controller line is self-deasserting, unlike other
platforms, so make use of reset_control_reset() instead of
reset_control_deassert().
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
drivers/ata/ahci_brcm.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index 70e3e386d52e..75931cfb70bc 100644
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -363,8 +363,12 @@ static int brcm_ahci_resume(struct device *dev)
struct brcm_ahci_priv *priv = hpriv->plat_data;
int ret = 0;
- if (!IS_ERR_OR_NULL(priv->rcdev))
- ret = reset_control_deassert(priv->rcdev);
+ if (!IS_ERR_OR_NULL(priv->rcdev)) {
+ if (priv->version == BRCM_SATA_BCM7216)
+ ret = reset_control_reset(priv->rcdev);
+ else
+ ret = reset_control_deassert(priv->rcdev);
+ }
if (ret)
return ret;
@@ -473,8 +477,12 @@ static int brcm_ahci_probe(struct platform_device *pdev)
}
priv->rcdev = devm_reset_control_get(&pdev->dev, reset_name);
- if (!IS_ERR_OR_NULL(priv->rcdev))
- reset_control_deassert(priv->rcdev);
+ if (!IS_ERR_OR_NULL(priv->rcdev)) {
+ if (priv->version == BRCM_SATA_BCM7216)
+ reset_control_reset(priv->rcdev);
+ else
+ reset_control_deassert(priv->rcdev);
+ }
ret = ahci_platform_enable_clks(hpriv);
if (ret)
--
2.17.1