usb: phy: mxs: Add anatop regmap

It is needed by imx6 SoC series, but not for imx23 and imx28.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index d7adca3738ff52bda42411aa2c8ec84e86235079..2411e050351f568d9b1d6e2a3e0e3439a5c93d17 100644 (file)
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -21,6 +21,8 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/of_device.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
 
 #define DRIVER_NAME "mxs_phy"
 
@@ -87,6 +89,7 @@ struct mxs_phy {
        struct usb_phy phy;
        struct clk *clk;
        const struct mxs_phy_data *data;
+       struct regmap *regmap_anatop;
 };
 
 static int mxs_phy_hw_init(struct mxs_phy *mxs_phy)
@@ -197,6 +200,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
        int ret;
        const struct of_device_id *of_id =
                        of_match_device(mxs_phy_dt_ids, &pdev->dev);
+       struct device_node *np = pdev->dev.of_node;
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        base = devm_ioremap_resource(&pdev->dev, res);
@@ -216,6 +220,17 @@ static int mxs_phy_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
 
+       /* Some SoCs don't have anatop registers */
+       if (of_get_property(np, "fsl,anatop", NULL)) {
+               mxs_phy->regmap_anatop = syscon_regmap_lookup_by_phandle
+                       (np, "fsl,anatop");
+               if (IS_ERR(mxs_phy->regmap_anatop)) {
+                       dev_dbg(&pdev->dev,
+                               "failed to find regmap for anatop\n");
+                       return PTR_ERR(mxs_phy->regmap_anatop);
+               }
+       }
+
        mxs_phy->phy.io_priv            = base;
        mxs_phy->phy.dev                = &pdev->dev;
        mxs_phy->phy.label              = DRIVER_NAME;