wl12xx: move hardcoded hci_io_ds value into the conf struct

Instead of hardcoding the hci_io_ds configuration that we write to the
SDIO_IO_DS top registed, read it from the default configuration so
that it's easier to change for different platforms.
Reported-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/wl12xx/boot.c

@@ -779,7 +779,7 @@ int wl1271_load_firmware(struct wl1271 *wl)
 	 * to upload_fw) */
 
 	if (wl->chip.id == CHIP_ID_1283_PG20)
-		wl1271_top_reg_write(wl, SDIO_IO_DS, HCI_IO_DS_6MA);
+		wl1271_top_reg_write(wl, SDIO_IO_DS, wl->conf.hci_io_ds);
 
 	ret = wl1271_boot_upload_firmware(wl);
 	if (ret < 0)

drivers/net/wireless/wl12xx/boot.h

@@ -117,10 +117,13 @@ struct wl1271_static_data {
 #define SDIO_IO_DS                   0xd14
 
 /* SDIO/wSPI DS configuration values */
-#define HCI_IO_DS_8MA                0
-#define HCI_IO_DS_4MA                1 /* default */
-#define HCI_IO_DS_6MA                2
-#define HCI_IO_DS_2MA                3
+enum {
+	HCI_IO_DS_8MA = 0,
+	HCI_IO_DS_4MA = 1, /* default */
+	HCI_IO_DS_6MA = 2,
+	HCI_IO_DS_2MA = 3,
+};
+
 /* end PLL configuration algorithm for wl128x */
 
 #endif

drivers/net/wireless/wl12xx/conf.h

@@ -1206,6 +1206,7 @@ struct conf_drv_settings {
 	struct conf_ht_setting ht;
 	struct conf_memory_settings mem_wl127x;
 	struct conf_memory_settings mem_wl128x;
+	u8 hci_io_ds;
 };
 
 #endif

drivers/net/wireless/wl12xx/main.c

@@ -319,6 +319,7 @@ static struct conf_drv_settings default_conf = {
 		.min_req_rx_blocks            = 22,
 		.tx_min                       = 27,
 	},
+	.hci_io_ds = HCI_IO_DS_6MA,
 };
 
 static void __wl1271_op_remove_interface(struct wl1271 *wl);