wl1251: convert 32-bit values to le32 before writing to the chip

The 32-bit values were not converted before writing them to the chip.
Change the wl1251_read32() and wl1251_write32() so that they always
read and write le32 values and convert to and from the CPU endianess.

Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl1251/io.h

@@ -36,16 +36,15 @@
 
 static inline u32 wl1251_read32(struct wl1251 *wl, int addr)
 {
-	u32 response;
-
-	wl->if_ops->read(wl, addr, &response, sizeof(u32));
+	wl->if_ops->read(wl, addr, &wl->buffer_32, sizeof(wl->buffer_32));
 
-	return response;
+	return le32_to_cpu(wl->buffer_32);
 }
 
 static inline void wl1251_write32(struct wl1251 *wl, int addr, u32 val)
 {
-	wl->if_ops->write(wl, addr, &val, sizeof(u32));
+	wl->buffer_32 = cpu_to_le32(val);
+	wl->if_ops->write(wl, addr, &wl->buffer_32, sizeof(wl->buffer_32));
 }
 
 static inline u32 wl1251_read_elp(struct wl1251 *wl, int addr)

drivers/net/wireless/wl1251/wl1251.h

@@ -380,7 +380,7 @@ struct wl1251 {
 	struct wl1251_stats stats;
 	struct wl1251_debugfs debugfs;
 
-	u32 buffer_32;
+	__le32 buffer_32;
 	u32 buffer_cmd;
 	u8 buffer_busyword[WL1251_BUSY_WORD_LEN];
 	struct wl1251_rx_descriptor *rx_descriptor;