[v6,3/7] wl12xx: add platform data passing support

Commit Message

Ohad Ben Cohen Sept. 15, 2010, 11:31 p.m. UTC

None

Patch

diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 5d4ce4d..85af697 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -50,5 +50,7 @@  obj-$(CONFIG_ATH_COMMON)	+= ath/
 obj-$(CONFIG_MAC80211_HWSIM)	+= mac80211_hwsim.o
 
 obj-$(CONFIG_WL12XX)	+= wl12xx/
+# small builtin driver bit
+obj-$(CONFIG_WL12XX_PLATFORM_DATA)	+= wl12xx/wl12xx_platform_data.o
 
 obj-$(CONFIG_IWM)	+= iwmc3200wifi/
diff --git a/drivers/net/wireless/wl12xx/Kconfig b/drivers/net/wireless/wl12xx/Kconfig
index 2f98058..4a8bb25 100644
--- a/drivers/net/wireless/wl12xx/Kconfig
+++ b/drivers/net/wireless/wl12xx/Kconfig
@@ -74,4 +74,7 @@  config WL1271_SDIO
 	  If you choose to build a module, it'll be called
 	  wl1271_sdio. Say N if unsure.
 
-
+config WL12XX_PLATFORM_DATA
+	bool
+	depends on WL1271_SDIO != n
+	default y
diff --git a/drivers/net/wireless/wl12xx/wl12xx_platform_data.c b/drivers/net/wireless/wl12xx/wl12xx_platform_data.c
new file mode 100644
index 0000000..973b110
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/wl12xx_platform_data.c
@@ -0,0 +1,28 @@ 
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/wl12xx.h>
+
+static const struct wl12xx_platform_data *platform_data;
+
+int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data)
+{
+	if (platform_data)
+		return -EBUSY;
+	if (!data)
+		return -EINVAL;
+
+	platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
+	if (!platform_data)
+		return -ENOMEM;
+
+	return 0;
+}
+
+const struct wl12xx_platform_data *wl12xx_get_platform_data(void)
+{
+	if (!platform_data)
+		return ERR_PTR(-ENODEV);
+
+	return platform_data;
+}
+EXPORT_SYMBOL(wl12xx_get_platform_data);
diff --git a/include/linux/wl12xx.h b/include/linux/wl12xx.h
index 015687a..bd70563 100644
--- a/include/linux/wl12xx.h
+++ b/include/linux/wl12xx.h
@@ -31,4 +31,7 @@  struct wl12xx_platform_data {
 	bool use_eeprom;
 };
 
+int wl12xx_set_platform_data(const struct wl12xx_platform_data *data);
+const struct wl12xx_platform_data *wl12xx_get_platform_data(void);
+
 #endif