[kernel] make rtl8366 driver OF capable

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34682 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 67 insertions, 0 deletions

diff --git a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
index be85274e7..44074633e 100644
--- a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
+++ b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
@@ -15,6 +15,8 @@
 #include <linux/gpio.h>
 #include <linux/spinlock.h>
 #include <linux/skbuff.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
 #include <linux/rtl8366.h>
 
 #ifdef CONFIG_RTL8366_SMI_DEBUG_FS
@@ -1370,6 +1372,71 @@ void rtl8366_smi_cleanup(struct rtl8366_smi *smi)
 }
 EXPORT_SYMBOL_GPL(rtl8366_smi_cleanup);
 
+#ifdef CONFIG_OF
+int rtl8366_smi_probe_of(struct platform_device *pdev, struct rtl8366_smi *smi)
+{
+	int sck = of_get_named_gpio(pdev->dev.of_node, "gpio-sck", 0);
+	int sda = of_get_named_gpio(pdev->dev.of_node, "gpio-sda", 0);
+
+	if (!sck || !sda) {
+		dev_err(&pdev->dev, "gpios missing in devictree\n");
+		return -EINVAL;
+	}
+
+	smi->gpio_sda = sda;
+	smi->gpio_sck = sck;
+
+	return 0;
+}
+#else
+static inline int rtl8366_smi_probe_of(struct device_node *np, struct rtl8366_smi *smi)
+{
+	return -ENODEV;
+}
+#endif
+
+int rtl8366_smi_probe_plat(struct platform_device *pdev, struct rtl8366_smi *smi)
+{
+	struct rtl8366_platform_data *pdata = pdev->dev.platform_data;
+
+	if (!pdev->dev.platform_data) {
+		dev_err(&pdev->dev, "no platform data specified\n");
+		return -EINVAL;
+	}
+
+	smi->gpio_sda = pdata->gpio_sda;
+	smi->gpio_sck = pdata->gpio_sck;
+	smi->hw_reset = pdata->hw_reset;
+
+	return 0;
+}
+
+
+struct rtl8366_smi *rtl8366_smi_probe(struct platform_device *pdev)
+{
+	struct rtl8366_smi *smi;
+	int err;
+
+	smi = rtl8366_smi_alloc(&pdev->dev);
+	if (!smi)
+		return NULL;
+
+	if (pdev->dev.of_node)
+		err = rtl8366_smi_probe_of(pdev, smi);
+	else
+		err = rtl8366_smi_probe_plat(pdev, smi);
+
+	if (err)
+		goto free_smi;
+
+	return smi;
+
+free_smi:
+	kfree(smi);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(rtl8366_smi_probe);
+
 MODULE_DESCRIPTION("Realtek RTL8366 SMI interface driver");
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
 MODULE_LICENSE("GPL v2");