These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / usb / chipidea / ci_hdrc_usb2.c

diff --git a/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c b/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c
index 45844c9..4456d2c 100644 (file)
--- a/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c
+++ b/kernel/drivers/usb/chipidea/ci_hdrc_usb2.c
@@ -12,6 +12,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_platform.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/usb/chipidea.h>
@@ -25,20 +26,40 @@ struct ci_hdrc_usb2_priv {
        struct clk              *clk;
 };
 
-static struct ci_hdrc_platform_data ci_default_pdata = {
+static const struct ci_hdrc_platform_data ci_default_pdata = {
        .capoffset      = DEF_CAPOFFSET,
        .flags          = CI_HDRC_DISABLE_STREAMING,
 };
 
+static struct ci_hdrc_platform_data ci_zynq_pdata = {
+       .capoffset      = DEF_CAPOFFSET,
+};
+
+static const struct of_device_id ci_hdrc_usb2_of_match[] = {
+       { .compatible = "chipidea,usb2"},
+       { .compatible = "xlnx,zynq-usb-2.20a", .data = &ci_zynq_pdata},
+       { }
+};
+MODULE_DEVICE_TABLE(of, ci_hdrc_usb2_of_match);
+
 static int ci_hdrc_usb2_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
        struct ci_hdrc_usb2_priv *priv;
        struct ci_hdrc_platform_data *ci_pdata = dev_get_platdata(dev);
        int ret;
+       const struct of_device_id *match;
 
-       if (!ci_pdata)
-               ci_pdata = &ci_default_pdata;
+       if (!ci_pdata) {
+               ci_pdata = devm_kmalloc(dev, sizeof(*ci_pdata), GFP_KERNEL);
+               *ci_pdata = ci_default_pdata;   /* struct copy */
+       }
+
+       match = of_match_device(ci_hdrc_usb2_of_match, &pdev->dev);
+       if (match && match->data) {
+               /* struct copy */
+               *ci_pdata = *(struct ci_hdrc_platform_data *)match->data;
+       }
 
        priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
        if (!priv)
@@ -94,12 +115,6 @@ static int ci_hdrc_usb2_remove(struct platform_device *pdev)
        return 0;
 }
 
-static const struct of_device_id ci_hdrc_usb2_of_match[] = {
-       { .compatible = "chipidea,usb2" },
-       { }
-};
-MODULE_DEVICE_TABLE(of, ci_hdrc_usb2_of_match);
-
 static struct platform_driver ci_hdrc_usb2_driver = {
        .probe  = ci_hdrc_usb2_probe,
        .remove = ci_hdrc_usb2_remove,