[PATCH v9 02/12] ata: ahci_brcm: Fix use of BCM7216 reset controller

[Jim Quinlan]

From: Jim Quinlan <jquin...@broadcom.com>

A reset controller "rescal" is shared between the AHCI driver and the PCIe
driver for the BrcmSTB 7216 chip.  Use
devm_reset_control_get_optional_shared() to handle this sharing.

Signed-off-by: Jim Quinlan <jquin...@broadcom.com>

Fixes: 272ecd60a636 ("ata: ahci_brcm: BCM7216 reset is self de-asserting")
Fixes: c345ec6a50e9 ("ata: ahci_brcm: Support BCM7216 reset controller name")
---
 drivers/ata/ahci_brcm.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index 6853dbb4131d..d6115bc04b09 100644
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -428,7 +428,6 @@ static int brcm_ahci_probe(struct platform_device *pdev)
 {
        const struct of_device_id *of_id;
        struct device *dev = &pdev->dev;
-       const char *reset_name = NULL;
        struct brcm_ahci_priv *priv;
        struct ahci_host_priv *hpriv;
        struct resource *res;
@@ -452,11 +451,10 @@ static int brcm_ahci_probe(struct platform_device *pdev)
 
        /* Reset is optional depending on platform and named differently */
        if (priv->version == BRCM_SATA_BCM7216)
-               reset_name = "rescal";
+               priv->rcdev = 
devm_reset_control_get_optional_shared(&pdev->dev, "rescal");
        else
-               reset_name = "ahci";
+               priv->rcdev = devm_reset_control_get_optional(&pdev->dev, 
"ahci");
 
-       priv->rcdev = devm_reset_control_get_optional(&pdev->dev, reset_name);
        if (IS_ERR(priv->rcdev))
                return PTR_ERR(priv->rcdev);
 
@@ -479,10 +477,7 @@ static int brcm_ahci_probe(struct platform_device *pdev)
                break;
        }
 
-       if (priv->version == BRCM_SATA_BCM7216)
-               ret = reset_control_reset(priv->rcdev);
-       else
-               ret = reset_control_deassert(priv->rcdev);
+       ret = reset_control_deassert(priv->rcdev);
        if (ret)
                return ret;
 
-- 
2.17.1