wl12xx: add wl12xx_spi_reg_read() and wl12xx_spi_reg_write() functions

In some cases we need to read more than 32 bits from the register area.
These functions were added to support that, like the existing
wl12xx_spi_mem_read() and wl12xx_spi_mem_write() already do for large blocks
in the memory area.

Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/wl12xx/spi.c

@@ -348,6 +348,24 @@ void wl12xx_spi_mem_write(struct wl12xx *wl, int addr, void *buf,
 	wl12xx_spi_write(wl, physical, buf, len);
 }
 
+void wl12xx_spi_reg_read(struct wl12xx *wl, int addr, void *buf, size_t len)
+{
+	int physical;
+
+	physical = wl12xx_translate_reg_addr(wl, addr);
+
+	wl12xx_spi_read(wl, physical, buf, len);
+}
+
+void wl12xx_spi_reg_write(struct wl12xx *wl, int addr, void *buf, size_t len)
+{
+	int physical;
+
+	physical = wl12xx_translate_reg_addr(wl, addr);
+
+	wl12xx_spi_write(wl, physical, buf, len);
+}
+
 u32 wl12xx_mem_read32(struct wl12xx *wl, int addr)
 {
 	return wl12xx_read32(wl, wl12xx_translate_mem_addr(wl, addr));

drivers/net/wireless/wl12xx/spi.h

@@ -81,6 +81,8 @@ u32 wl12xx_mem_read32(struct wl12xx *wl, int addr);
 void wl12xx_mem_write32(struct wl12xx *wl, int addr, u32 val);
 
 /* Registers IO */
+void wl12xx_spi_reg_read(struct wl12xx *wl, int addr, void *buf, size_t len);
+void wl12xx_spi_reg_write(struct wl12xx *wl, int addr, void *buf,size_t len);
 u32 wl12xx_reg_read32(struct wl12xx *wl, int addr);
 void wl12xx_reg_write32(struct wl12xx *wl, int addr, u32 val);