ata: ahci_brcm: Support BCM7216 reset controller name

BCM7216 uses a different reset controller name which is "rescal" instead
of "ahci", match the compatible string to account for that minor
difference, the reset is otherwise identical to how other generations of
SATA controllers work.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index 58e1a6e..13ceca6 100644 (file)
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -73,6 +73,7 @@ enum brcm_ahci_version {
        BRCM_SATA_BCM7425 = 1,
        BRCM_SATA_BCM7445,
        BRCM_SATA_NSP,
+       BRCM_SATA_BCM7216,
 };
 
 enum brcm_ahci_quirks {
@@ -415,6 +416,7 @@ static const struct of_device_id ahci_of_match[] = {
        {.compatible = "brcm,bcm7445-ahci", .data = (void *)BRCM_SATA_BCM7445},
        {.compatible = "brcm,bcm63138-ahci", .data = (void *)BRCM_SATA_BCM7445},
        {.compatible = "brcm,bcm-nsp-ahci", .data = (void *)BRCM_SATA_NSP},
+       {.compatible = "brcm,bcm7216-ahci", .data = (void *)BRCM_SATA_BCM7216},
        {},
 };
 MODULE_DEVICE_TABLE(of, ahci_of_match);
@@ -423,6 +425,7 @@ 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;
@@ -444,8 +447,13 @@ static int brcm_ahci_probe(struct platform_device *pdev)
        if (IS_ERR(priv->top_ctrl))
                return PTR_ERR(priv->top_ctrl);
 
-       /* Reset is optional depending on platform */
-       priv->rcdev = devm_reset_control_get(&pdev->dev, "ahci");
+       /* Reset is optional depending on platform and named differently */
+       if (priv->version == BRCM_SATA_BCM7216)
+               reset_name = "rescal";
+       else
+               reset_name = "ahci";
+
+       priv->rcdev = devm_reset_control_get(&pdev->dev, reset_name);
        if (!IS_ERR_OR_NULL(priv->rcdev))
                reset_control_deassert(priv->rcdev);